Technical ReportPDF Available

IUCN UK Commission of inquiry on peatlands

Authors:
  • Yorkshire Wildlife Trust
COMMISSION OF INQUIRY
PEATLANDS
ON
This report should be cited as:
Bain, C.G., Bonn, A., Stoneman, R., Chapman, S., Coupar, A., Evans, M.,
Gearey, B., Howat, M., Joosten, H., Keenleyside, C., Labadz, J., Lindsay, R.,
Littlewood, N., Lunt, P., Miller, C.J., Moxey, A., Orr, H., Reed, M., Smith, P.,
Swales, V., Thompson, D.B.A., Thompson, P.S., Van de Noort, R., Wilson, J.D.
& Worrall, F. (2011) IUCN UK Commission of Inquiry on Peatlands. IUCN UK
Peatland Programme, Edinburgh.
October 2011
Published by the IUCN UK Peatland Programme
ISBN 978-0-9570572-1-0
The report and associated Commission of Inquiry material can be downloaded
from www.iucn-uk-peatlandprogramme.org
The International Union for the Conservation of Nature (IUCN) is a global
organization, providing an inuential and authoritative voice for nature
conservation. The IUCN UK Peatland Programme promotes peatland
restoration in the UK and advocates the multiple benets of peatlands through
partnerships, strong science, sound policy and effective practice.
Design by Dirty White Design
Front cover image © Laurie Campbell/SNH
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
CONTENTS
LIST OF FIGURES AND TABLES 2
FOREWORD 3
ACKNOWLEDGEMENTS 5
EXECUTIVE SUMMARY 8
1. INTRODUCTION: WHY ARE PEATLANDS IMPORTANT? 20
2. WHAT ARE PEATLANDS? 24
3. WHAT IS THE DISTRIBUTION OF PEATLANDS? 30
4. WHAT KEY SERVICES ARE DELIVERED BY PEATLANDS? 36
4.1 Climate regulation 37
4.2 Biodiversity conservation 44
4.3 Water regulation 48
4.4 Sense of place: historic environment conservation 50
5. WHAT IS THE STATE OF UK PEATLANDS? 54
5.1 Burning on peatlands 60
5.2 External drivers: pollution and climate change 62
6. OPTIONS FOR THE FUTURE 64
6.1 Business as usual 67
6.2 Conservation and restoration 67
6.3 Peatland restoration: a good investment 72
7. SECURING THE FUTURE OF UK PEATLANDS 74
7.1 Policy 77
7.2 Funding 85
7.3 Coordinated action 88
8. IUCN UK PEATLAND PROGRAMME: NEXT STEPS 96
9. CONCLUSION 98
10. REFERENCES 100
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
LIST OF FIGURES AND TABLES
Figure 1 Peat structure in a natural, functioning bog 27
Figure 2 Distribution of peatlands across the world 31
Figure 3 Peat and peaty soils of the United Kingdom 33
Figure 4 Peatland distribution across Europe 38
Figure 5 Schematic gas uxes of carbon dioxide
from natural peatlands and degraded peatlands 39
Figure 6 Annual CO2 emissions of peat soils
are higher under reduced mean annual water tables 40
Figure 7 Global Warming Potential (GWP) of UK
peat bogs under natural, drained and rewetted state 43
Figure 8 Dunlin populations are closely associated
with areas of high Sphagnum cover in peat bogs 46
Figure 9 Effects of a lowering water table on vegetation 47
Figure 10 Effects of grip blocking on DOC levels 48
Figure 11 Change in baseow and runoff after grip blocking 50
Figure 12 a) Distribution of peat soils in the UK
b) Burn intensity index across the UK 60
Figure 13 Illustrative GHG mitigation costs
and abatement potential 72
Table 1 Summary of organic-rich soils
extent and bogs and fen UK BAP type extent 32
Table 2 Example emission factors
relative to emissions from 1ha degraded peatland 73
Table 3 Key international commitments recognising peatlands 78
Table 4 Categories of policy instruments 79
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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FOREWORD
This IUCN UK Commission of Inquiry on Peatlands presents one of the most
extensive assessments of peatlands undertaken in the UK to date. It identies
the state and value of peatland ecosystems and develops ways to safeguard
and restore their natural capital.
Peatlands are vitally important for people, but this has not been widely
appreciated until recently. As a result the majority have been damaged or
destroyed. The valuable role of peatlands has been highlighted internationally
by the United Nations Environment Programme. The UK National Ecosystem
Assessment also emphasises the special importance of peatlands, particularly
in relation to climate change mitigation and adaptation. Peatlands support
important wildlife habitats, hold vast carbon stores, collect and supply much
of our drinking water, provide archives of archaeological and environmental
information and offer breathing spaces and a sense of place for many people.
Peatlands are a huge asset for society but we need to take urgent steps
to ensure the peatland resource, with its biodiversity, is properly managed
and secured for the future. This is an even more urgent task in the face of
a changing climate, which could accelerate the deterioration of damaged
peatlands. As it becomes clear across the world that damage to peatlands
comes at great cost, ways of halting damage and restoring peatlands have
been developed. In the UK, we have some world-leading examples of peatland
restoration and the expertise to manage them at a landscape scale. There
is considerable support across the different land management communities
to bring peatlands back into good condition, but to date there has been no
obvious, coordinated, driving-force to make it happen.
The IUCN UK Commission of Inquiry on Peatlands has brought together
over 300 contributors from over 50 organisations drawing on a wide range of
expertise from science, policy and practice. It comes at a crucial time, with
high level strategic decisions being made at a national and international level
on climate change, biodiversity, water and agriculture, which will impact on the
way we manage our peatlands and how we pay to keep them in a healthy state.
This Assessment draws together the Inquiry’s ndings and clearly demonstrates
the value of healthy peatlands to society, the damage which has been done to
them, and the huge liability of doing nothing to repair this damage.
Patrons of the IUCN UK Commission of Inquiry on Peatlands
Lord Jamie Lindsay Prof Andrew Watkinson
Sir Graham Wynne
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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ACKNOWLEDGEMENTS
The Commission of Inquiry was led by the IUCN UK Peatland Programme
and managed through partnership. A wide range of sectors engaged in
the production of scientic reviews and responded to an open consultation
process. The Inquiry process was supported by discussions at the two IUCN
UK Peatland Programme conferences ‘Investing in Peatlands: the Climate
Challenge’ in Durham, 2010, and ‘Investing in Peatlands: Delivering Multiple
Benets’ in Stirling, 2011, along with contributions of written and oral evidence
from the inquiry open event in Edinburgh in November 2010, organised with
kind support of the University of Edinburgh. Land management organisations
have been closely involved in the Inquiry, and opportunities were given to those
with practical peatland management experience to input to the ndings.
We are grateful to our Commission of Inquiry patrons Lord Jamie Lindsay,
Professor Andrew Watkinson and Sir Graham Wynne for high level support
and steering. The Inquiry was chaired by Martyn Howat, and Steve Chapman
provided the overall scientic coordination. The core panel of the Inquiry was
a team of peatland specialists from science, policy and practice comprising
Andrew Coupar, Scottish Natural Heritage (SNH), Martin Evans, University
of Manchester, Prof Hans Joosten, University of Greifswald, Wetlands
International, Richard Lindsay, University of East London, Harriet Orr,
Environment Agency, Matthew Shepherd, Natural England, Prof Pete Smith,
University of Aberdeen, Vicki Swales, Royal Society for the Protection of Birds
(RSPB), Prof Des Thompson, SNH, and Prof Robert Van de Noort, University of
Exeter.
The Commission of Inquiry and Assessment Report preparation was supported
by an advisory panel. The following organisations have been extensively
consulted during the course of the Inquiry and on the content of the report and
have made important contributions to the development of the thinking behind it.
Cairngorms National Park Authority, Centre for Ecology and Hydrology
Edinburgh, Corrour Estate, Countryside Council for Wales, Department for
Environment Food and Rural Affairs, Environment Agency, English Heritage,
Forestry Commission, Heather Trust, John Muir Trust, Lancashire Wildlife Trust,
Moorland Association, Moors for the Future Partnership, National Farmers
Union, National Farmers Union Scotland, National Trust, National Trust for
Scotland, Natural England, NERC Carbon Landscapes and Drainage Network,
Northern Ireland Environment Agency, North Pennines AONB Partnership,
Royal Society for the Protection of Birds, Scottish Environment Protection
Agency, Scottish Government, Scotland's Moorland Forum, Scottish Land and
Estates Moorland Group, Scottish Natural Heritage, Scottish Water, Scottish
Wildlife Trust, United Utilities, University of East London, Welsh Government,
Yorkshire Peat Partnership, Yorkshire Water and Yorkshire Wildlife Trust.
The Joint Nature Conservation Committee Soils and Upland Lead Coordination
Networks provided advice and information as input to the activities of the
Commission of Inquiry.
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The work of the IUCN UK Peatland Programme and the Commission of Inquiry
is funded primarily by the Peter De Haan Charitable Trust and hosted by the
Yorkshire Wildlife Trust and Scottish Wildlife Trust. We are particularly grateful
to Peter De Haan for his personal support and interest. Additional funding for
the Commission of Inquiry was received for the production of reviews and
Sfor meetings from English Heritage, the James Hutton Institute, the Moorland
Association, the North Pennines AONB Partnership, the Rural Economy and
Land Use Programme, Scottish Environment Protection Agency and Scottish
Natural Heritage.
Considerable in kind support was provided by academic institutions,
consultancies, government departments and agencies and NGOs in producing
technical reviews, providing evidence at the Inquiry event and participating
in core panel and advisory panel activities, as well as by many individuals
throughout the consultation, reecting the strong desire to see action for UK
peatlands.
We are very grateful to Mary Church for organising the Commission of Inquiry
events and successfully coordinating the design and publication of the Inquiry
report and associated material. We also thank Tom Edwards for thoroughly
editing the report and helpful suggestions.
Disclaimer
This Assessment Report is the result of the IUCN UK Peatland Programme’s
synthesis of the contributions to the Inquiry and may not necessarily reect
the views of all those involved.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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The Assessment Report is based on signicant input from twelve technical
reviews produced as contributions to the Commission of Inquiry, namely
Joint Nature Conservation Committee (2011) Towards an assessment of the state
of UK peatlands. JNCC report no 445.
Worrall, F., Chapman, P., Holden, J., Evans, C., Artz, R., Smith, P. & Grayson, R.
(2010) Peatlands and Climate Change. Report to IUCN UK Peatland Programme.
Edinburgh.
Littlewood, N., Anderson, P., Artz, R., Bragg, O., Lunt, P. & Marrs, R. (2010)
Peatland Biodiversity. Report to IUCN UK Peatland Programme. Edinburgh.
Lunt, P., Allott, T., Anderson, P., Buckler, M., Coupar, A., Jones, P., Labadz, J. &
Worrall, P. (2010) Peatland Restoration. Report to IUCN UK Peatland Programme.
Edinburgh.
Worrall, F., Clay, G.D., Marrs, R. & Reed, M.S. (2010) Impacts of Burning
Management on Peatlands. Report to IUCN UK Peatland Programme. Edinburgh.
Labadz, J., Allott, T. Evans, M., Butcher, D., Billett, M., Stainer, S., Yallop, A.,
Jones, P., Innerdale, M., Harmon, N., Maher, K, Bradbury, R., Mount, D., O’Brien,
H. & Hart, R. (2010) Peatland Hydrology. Report to IUCN UK Peatland Programme.
Edinburgh. (funded by the North Pennines AONB Partnership.)
Geary, B., Bermingham, N., Chapman, H., Charman, D., Fletcher, W., Fyfe,
R., Quartermaine, J., Charman, D., Van de Noort, R. & Heathcote, J. (2010)
Peatlands and the Historic Environment. Report to IUCN UK Peatland Programme.
Edinburgh. (funded by English Heritage.)
Reed, M., Buckmaster, S., Moxey, A., Keenleyside, C., Fazey, I., Scott, A.,
Thomson, K., Thorp, S., Anderson, R., Bateman, I., Bryce, R., Christie, M., Glass,
J., Hubacek, K, Quinn, C., Maffey, G., Midgley, A., Robinson, G., Stringer, L., Lowe,
P. & Slee, B. (2010) Policy options for sustainable management of UK peatlands.
Report to IUCN UK Peatland Programme. Edinburgh.
Joosten, H. (2011) Peatlands, policies and markets. Report to IUCN UK Peatland
Programme. Edinburgh.
Moxey, A. (2011) Illustrative economics of peatland restoration. Report to IUCN UK
Peatland Programme. Edinburgh.
Keenleyside, C. & Moxey, A. (2011) Public funding of peatland management
and restoration in the UK – a review for IUCN UK. Report to IUCN UK Peatland
Programme. Edinburgh.
IUCN UK Peatland Programme (2011) Brief summary of the state of peatlands in
British Overseas Territories. IUCN UK Peatland Programme. Edinburgh.
We thank all authors for their considerable input and all funders for making this
possible. Parts of these reviews have been used and quoted to prepare this
Assessment Report.
All contributing material, including the above reviews, submissions to the Open
Inquiry and conference proceedings, is available as resources on the IUCN UK
Peatland Programme website www.iucn-uk-peatlandprogramme.org
More detailed brieng notes for key subjects will be provided by the partnership.
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EXECUTIVE SUMMARY
“Restoration of peatlands is a low hanging fruit, and among the most
cost-effective options for mitigating climate change.”
Achim Steiner UN Under-Secretary General and Executive Director UN Environment Programme (UNEP)
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Peatlands are areas of land with a naturally accumulated layer of
peat. These are formed under waterlogged conditions from carbon
rich, dead and decaying plant material. In the UK mosses, mainly
Sphagnum species, are the main formers of peat.
Peatlands are found in at least 175 countries – from the tropics to the poles
– and cover around 4 million km2 or 3% of the world’s land area. In Europe,
peatlands extend to ca. 515,000 km2. The UK is amongst the top ten nations
of the world in terms of its total peatland area. The UK has between 9-15%
of Europe’s peatland area (46,000-77,000 km2) and about 13% of the world’s
blanket bog – one of the world’s rarest habitats. There are three main types
of peatland in the UK: blanket bogs, raised bogs and fens. The international
importance of the peatlands found in the UK give it an especial responsibility
for their management and conservation.
The IUCN UK Commission of Inquiry on Peatlands has gathered up-to-date
knowledge from science, policy and practice. The assessment focuses on
blanket bog and raised bog peatlands, because they represent over 95% of
all UK peatland habitat and offer an opportunity to make early and substantial
progress in delivering a combination of economic, social and biodiversity
gains. However, we recognise that lowland, river and groundwater-fed fen
peatlands are also vital carbon stores, as well as existing and potential areas
of rich biodiversity, which have also been subject to intensive and damaging
management. Fen peatlands share many of the issues affecting rain-fed
peatlands but with distinct differences in terms of their functions, threats
and pressures, which merit further investigation.
A multidisciplinary team of experts produced this Report. It provides an
authoritative assessment of the available evidence, based on peer-reviewed
scientic consensus about the state of peatlands, the impacts of different
activities on peatland ecosystems and the services they provide and the
benets of restoring and conserving them. The assessment explores
mechanisms and processes for peatland conservation action, recognising the
different social, economic and environmental drivers. The evidence-gathering
approach was inclusive, engaging individual land managers as well as a wide
range of organisations, which in itself has helped to foster joint action for
peatland conservation and restoration.
The Assessment Report sets out the main conclusions, highlighting gaps
and opportunities for further action. It identies ways to secure additional
funding and develop expertise to help land managers restore the UK’s
peatlands and to allow decision makers to take better account of their
multiple benets.
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Blanket bog of the Flow Country, Forsinard © RSPB
KEY FACTS
Peatlands provide essential services to society,
globally, nationally and locally.
Peatlands are vitally important in the global carbon cycle and UK
greenhouse gas budgets. They represent the single most important terrestrial
carbon store in the UK. Blanket and raised bog peatlands cover around
23,000 km2 or 9.5% of the UK land area, with current estimates indicating they
store at least 3.2 billion tonnes of carbon. A loss of only 5% of UK peatland
carbon would equate to the total annual UK anthropogenic greenhouse gas
emissions. Healthy peat bogs have a net long-term ‘cooling’ effect
on the climate.
Peatlands include the largest remaining semi-natural habitats in the UK.
Our peatland habitats host nationally and internationally important biodiversity.
Many of the typical peatland species, however, are showing marked population
declines. The best available evidence suggests that less than 20% of the UK’s
peatlands are undamaged. The remaining peatlands are eroded, modied or
destroyed through extraction or conversion to other land uses. Even the best
protected sites (under EU wildlife legislation) have suffered, with less than 50%
in a favourable condition. However, much of the damage could still be reversed.
British Overseas Territories also support large areas of peatlands, particularly
in the Falkland Islands, with estimates of over 5,470 km2 of deep blanket peat.
Peatlands are important for drinking water. In the UK, 70% of all drinking
water is derived from surface water that comes mainly from upland catchments,
which are generally peat dominated. Healthy peatlands provide high-quality
water that is much cheaper to treat for drinking - damaged peatlands produce
higher concentrations of organic ‘brown water’ carbon, which has to be removed
at high cost.
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Peatlands are national treasures. They provide a sense of place for
many communities. As waterlogged soils, peat deposits provide a rich
archive of cultural and environmental change stretching back over
10,000 years. Peatlands have preserved some of the oldest and most
intriguing archaeological remains including roads, tracks, houses and
settlements, monuments, artefacts and bog bodies. The archive, that is peat
itself, has contributed greatly to our understanding of global climate change.
Peatlands have been identied as a priority for action under international
agreements. Global agreements such as the UN Convention on Biological
Diversity (CBD), the UN Framework Convention on Climate Change (UNFCCC)
and the Ramsar Convention on Wetlands include obligations and opportunities
for countries to maintain and restore peatlands. These agreements highlight
the need for policies and funding to better reect the value of peatland habitats
for the services they provide. At an EU level, legislation on wildlife and water
also recognises the importance of peatlands. By drawing on the work of a
wide range of public-body and private partnerships, the UK Government and
devolved administrations have an opportunity to demonstrate good practice in
peatland protection and restoration to other European countries and globally.
Peatlands rely on water. When drained, peatlands waste away through
oxidation, adding carbon dioxide to the atmosphere – then, they are a liability.
A variety of activities have resulted in peatlands being damaged including
drainage for agriculture or forestry, track building and peat extraction. Fire,
overgrazing, climate change and atmospheric deposition can exacerbate the
effects of drainage. Lowered water tables on peat bogs encourage the growth
of plant species that do not easily form peat or that actively degrade the existing
peat stock, resulting in losses of soil carbon and emissions of carbon dioxide
to the atmosphere.
Blanket bog of the Flow Country, Forsinard © RSPB
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Damaged peatlands are expensive. Damaged and degraded peatlands place
a substantial nancial burden on society because of increased greenhouse gas
emissions, poorer water quality and loss of other ecosystem services. Damaged
peatlands may also exacerbate costly ood events, when water is rapidly
conveyed from peatlands through drainage ditches and erosion gullies into
downstream areas.
Peatland restoration is cost-effective. The cost of peatland restoration is
considerably lower than the ongoing costs to society from leaving peatlands
damaged. Early intervention also has lower restoration costs. Peatland
restoration is cost-effective in reducing emissions of carbon to the atmosphere,
improving water quality (reducing the costs for drinking water treatment) and
conserving biodiversity. Peatland restoration can also help with climate change
mitigation and adaptation. Funding for peatlands under current government
schemes, particularly through the Common Agricultural Policy (CAP), can be
an effective means of supporting management and restoration, but there is no
doubt that more could be done through current funding instruments. Peatland
restoration also presents new funding opportunities through links with business
and industry, carbon markets and payments for delivery of ecosystem services
within agri-environment schemes. This in turn could lead to better support for
rural communities and the creation of green jobs.
The UK has world leading expertise in peatland restoration. The UK has
globally relevant examples of peatland restoration and considerable land
management expertise in tackling different forms of peatland damage, with
many demonstrable successes. This creates an opportunity for peatland
restoration to make a positive contribution towards meeting the UK’s biodiversity
objectives and ambitious targets to reduce greenhouse gas emissions. There
are several successful landscape scale restoration projects in the UK, for
example blanket bog restoration in the Flow Country in Scotland, Lake Vyrnwy
and Migneint in Wales, Exmoor, Dartmoor, Peak District and Pennines in
England and restoration of lowland raised bogs in Cumbria, Lancashire, and
Northern Ireland.
Functioning blanket bog, Forsinard © Norman Russell
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Damaged peatlands are substantially less resilient to climate change than
healthy ones. Given rapid climate change, which is likely to impact widely and
adversely on biodiversity, soils, water supply and quality, there is an even more
urgent need for action to protect and restore peatlands. Available evidence
suggests that a healthy peatland is a more resilient peatland in the face of
environmental change. Good management and restoration also help to secure
peatland wildlife and ecosystem services, under a changing climate. Restoration
therefore helps to safeguard important goods and services into the future and,
at the same time, can help to meet the UK’s emission-reduction targets. Not
restoring peatlands will lead to increased greenhouse gas emissions from
damaged peat carbon stores under a changing climate.
Peatland natural capital is not fully represented in national accounting.
The fact that the true value of peatlands and the costs of damaging them are
not reected in the resources available to conserve them represents
a clear example of market failure. The value of peatlands as a carbon store
and in mitigating climate change is not yet fully taken into account in the
national greenhouse gas inventory. In addition, there are monitoring gaps
in relation to the state of peatlands, progress towards biodiversity objectives,
delivery of ecosystem services and application of policy measures such as
agri-environment schemes. Improvement in these areas would allow better
accounting and reporting of progress against government objectives and
international obligations.
Sphagnum © Norman Russell
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PEATLANDS: AN URGENT AGENDA
Securing the benets we derive from peatlands
requires an urgent step-change in action to redress
past damage. A speedy response to protect and
restore our peatlands under a changing climate is
challenging – but will cost us dear if we delay.
This Inquiry therefore calls for the multiple benets of
peatlands to be understood and appreciated. Our vision is
for the UK’s peatlands to be functioning to their full natural
potential. There should be no further loss of near-natural
peatlands in the UK, and all recoverable peatlands should be
restored to a peat forming state, resilient to climate change
and with long-term safeguards. Our four-pronged peatland
strategy comprises:
Conserving peatlands in good condition, through
management that maintains a favourable state, and
preventing further damage to healthy peatlands (even
the best protected peatland sites have suffered, with
less than 50% in a favourable condition, so the rst
priority must be to prevent any further deterioration).
Restoring partially damaged peatlands through
land-use changes and active habitat management
to return them to a peat forming state with typical
peatland vegetation and animal species (including
blocking drainage ditches, altering livestock
numbers or adjusting burning management).
Intervening to repair severely damaged peatlands
through major operations, such as woodland removal,
gully blocking and re-vegetating bare peat.
Communicating the contribution peatlands
make to meeting environmental, economic and
social goals – critically, to help combat climate
change and to halt the loss of biodiversity.
Peatlands are an important visitor attraction
© Norman Russell
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We need strong public and business policy responses to
achieve this, focused on three actions:
a. Introducing a UK and devolved government policy
framework to protect and maintain existing peatlands
and ensure restoration of damaged areas. Peatland
policy objectives and delivery should be ‘joined-up’
across climate change, biodiversity, water, heritage,
development and access legislation.
b. Ensuring the necessary funding is in place to protect
and restore the UK’s peatlands. This requires continued
use of the key funding streams, such as the EU Common
Agriculture Policy (CAP), and maximising any additional
opportunities through forthcoming reform. Other funds
should be sought through the EU Environment – LIFE+
Programme, with additional core government funding
alongside the development of business investment in
ecosystem services.
c. Coordinating action to encourage partnerships to
secure an effective evidence base, with monitoring and
reporting on progress, along with knowledge exchange,
education and advice.
More detail on the actions needed to achieve our vision is set
out in Chapter 7 of this report.
Targets and timescales
The management and restoration of the UK’s peatlands is
an ambitious goal, with best estimates of 2.3 million ha of
blanket and raised bog, of which around 1.8 million ha is
damaged in some way. By creating a better framework to
integrate public and business policies and by putting the right
funding mechanisms in place, we should be able to secure
a much better future for our peatlands by 2050. A positive
interim target would be to work towards having
1 million ha of peatlands in good condition or under
restoration management by 2020 – a timescale consistent
with UK and international biodiversity objectives as well as
commitments to tackle global climate change.
Results of grip damming © Andrew Keen
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MOVING TOWARDS HEALTHIER PEATLANDS
a. Policy framework
We need to muster the considerable peatland expertise and
potential resources across the public and private sectors to
achieve the scale and urgency of action required, recognising
the challenges of the current economic climate.
a1. Clear government signals need to empower public bodies, the private
sector, NGO’s and communities to maintain and restore peatlands.
Establish a UK wide, coordinated, funded peatland restoration delivery
programme with agreed areas, targets and timescales, reecting
international commitments on peatlands.
a2. Coordination and cooperation across government sectors and agencies
would help deliver peatland biodiversity objectives and secure
ecosystem benets.
Recognise the important role of peatlands under all relevant public
body duties, e.g. climate change mitigation and adaptation, biodiversity
conservation and water regulation.
Take forward opportunities for delivery of landscape and
cross-catchment scale projects with cooperation across different
administrative boundaries.
Establish a high-level peatland group to facilitate cross agency
coordination and to report on progress against peatland objectives.
a3. Develop an ecosystem-based approach to peatland policy.
Adopt an ecosystem-based approach with healthy functioning peatland
habitat as the shared goal, rather than simply maximising individual
services from peatlands.
a4. Have better collaboration across public bodies, business, NGOs,
and communities with stronger connections between end-beneciaries
and those delivering services on peatlands.
Support collaborative working at the site level to deliver peatland
management and restoration, showcasing good examples nationally
and internationally.
Explore mechanisms to encourage better connection between peatland
managers and beneciaries of the ecosystem services.
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Bog pool at Blar nam Faoileag © Norman Russell
b. Funding
There are opportunities to greatly improve the sharing of costs experienced by
society in terms of damaging impacts to water, loss of biodiversity and carbon
emissions and the support given to the management of peatlands. Put simply,
we want to vastly reduce these costs. Support towards this includes direct
government and business funding along with government action to facilitate
international funds, business and private investment for peatland management
and restoration.
b1. Improved funding through the CAP, both Pillar I direct payments and Pillar II
Rural Development Programmes (especially agri-environment and forestry
measures) for peatland management and restoration.
Improve the alignment of funds within the four UK country programmes
to the provision of benets for biodiversity, climate change and water.
Ensure appropriate payment levels and integration with private/public
funding initiatives to incentivise land managers and cover the costs of
providing public benets from peatlands.
b2. Use public and private resources in a coordinated way to support peatland
restoration and management.
Establish core government funding specically to support peatland
projects, and encourage public bodies and the business sector to work
jointly in funding peatland work.
b3. Development of new sources of funding for peatland conservation and
restoration.
Explore opportunities to support business-led carbon investment in
peatlands including developing a Peatland Carbon Code.
Support water company investment in upstream land management.
Explore other funding opportunities such as payment schemes for
ecosystem services, biodiversity offsets and habitat banking.
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c. Coordinated action
c1. Establish nationally coordinated and funded peatland accounting.
Monitor the state of peatlands.
Report on progress towards biodiversity targets and delivery of
international and national objectives, greenhouse gas emissions
savings and other ecosystem service benets.
Assess the effectiveness and progress of policy measures, including
agri-environment measures.
c2. Provide support for a UK peatland hub for information and consensus
building, training and partnership working between scientists, policy
advisers, businesses and land managers.
Provide a one-stop shop for information.
Showcase cost effective and exible solutions for peatland restoration
and management through demonstration sites.
Facilitate effective collaborations between policy, practice and
academic research.
c3. Encourage trans-disciplinary research on peatlands.
Provide solutions for effective peatland conservation/restoration.
Improve the evidence base for the services that peatlands provide and
the effects of restoration.
c4. Communicate the importance of peatlands, highlighting their benets to
society including market and non market values.
Build on the wealth of peatland projects and stories to provide the tools
for wider communication, engaging expertise to incorporate peatlands
more extensively in media and education.
CONCLUSION
Throughout the course of this Inquiry, it has been evident that
there is a large community of interested people and organisations
willing to help deliver the vision for peatlands – but needing the
right signals and support. We now want to see a signicant shift in
public attitudes and support towards realising the immense value
of peatlands in making the planet healthier for us – and for nature.
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1. INTRODUCTION:
WHY ARE PEATLANDS IMPORTANT?
“Peatland conservation is a prime example of a nature-based solution
to climate change but we urgently need to switch from aspiration to action
to secure the benets that peatlands provide.”
Julia Marton-Lefèvre Director General, International Union for the Conservation of Nature
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This Assessment Report rst denes peatlands and explains the Commission
of Inquiry’s focus on blanket bogs and raised bogs. It provides a description
of the global and national distribution of peatlands and assesses their key
ecosystem services and biodiversity importance. The report then looks at the
state of peatlands in the UK, which leads to the evaluation of future options. The
nal part of the report develops a vision for peatlands with suggestions for key
actions across policy, industry, land managers, NGOs and science. The report
concludes by outlining the next steps of the IUCN UK Peatland Programme.
However, it will remain the responsibility of key actors in policy, science and
practice to take forward the shared agenda and harness the opportunity to
safeguard our peatland natural capital.
Peatlands are habitats with carbon-rich peat soil. They are manifestly important
for human well-being. Despite covering only 3% of the global land surface,
they globally comprise 30% of all soil carbon. Peatlands include the largest
remaining areas of semi-natural habitats in the UK supporting bog and fen
habitats and species that are protected under international and national
legislation. As iconic landscapes they offer breathing spaces for millions of
people, support livelihoods and provide a sense of place for many communities.
The peat itself harbours a rich palaeo-ecological and historic archive with
preserved artefacts from past human societies and a wealth of information
about our changing environment, land management and climate. Peatlands
are important source catchments for drinking water and also have a role in the
regulation of water ows.
Blanket bog of the Flow Country, Forsinard © RSPB
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However, the majority of the peatland resource is damaged or deteriorating,
through drainage, peat cutting, re and the effect of livestock. Climate change
is likely to cause further deterioration of damaged peatlands with increased
erosion, carbon loss, oods and risk of wildres. This ongoing deterioration
of the UK’s peatlands represents a highly signicant hidden cost to society,
particularly through increased greenhouse gas emissions, wildlife loss and
reduced water quality.
Restoration of damaged peatlands to a naturally functioning state is vital to
ensure that carbon stored in the peat soil is locked up long into the future and to
safeguard nationally and internationally important wildlife. Restoration ensures
that these vital ecosystem services are maintained. Restoration is a cost-
effective way of resolving some of our most urgent environmental problems and
avoiding increasing future costs, as problems become larger and restoration
becomes harder and more expensive.
Peatland restoration and conservation are already at the heart of high level
strategic decisions being taken at a national and international level to deal with
climate change and the way land and water is managed. Global conventions
on biodiversity and climate change have seen world leaders agreeing on the
need for urgent action on peatlands. At the EU level, the reform of the Common
Agriculture Policy, the delivery of the Water Framework Directive and goals of
the EU Biodiversity Strategy 2020 (European Commission 2011) present key
opportunities to help protect and restore peatlands at a far greater scale and
rate than we have achieved in the past.
At the UK and devolved government level, natural heritage, agriculture, water,
climate change and development planning policy all recognise peatlands
as important. However, these policy commitments are not yet effectively
coordinated or operating at the right scale and intensity to properly redress
the past damage, even within our most protected peatland sites. This report
explains how a UK wide, coordinated, funded peatland restoration delivery
programme with agreed areas, targets and timescales could achieve effective
conservation of the UK’s peatland natural capital with its important biodiversity
and services. As a globally inuential and peatland-rich nation, the UK is in a
strong position to show leadership by resolving the current failure to recognise
peatlands’ values and by investing in restoration and sustainable management.
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2. WHAT ARE PEATLANDS?
“Peatlands are a crucial component of the Earth’s interacting landscape, biosphere
and climate systems. It is therefore right that we should do all we can to protect
peatlands so that they can continue to support a healthy Earth system and provide
a wide range of global, national and local benets for future generations.”
Joseph Holden, Professor of Physical Geography, University of Leeds
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Peatlands are areas of land with a naturally accumulated layer of peat,
formed from carbon rich dead and decaying plant material under water logged
conditions. Mosses, mainly Sphagnum species, are the main peat formers in
the UK. Semi-natural and undamaged peatlands can accumulate carbon at a
rate of 30-70 tonnes of carbon per km2 per year (Billett et al. 2010; Worrall et al.
2010b). In the UK, many peatland areas have been accumulating carbon since
the retreat of the last glaciers approximately 10,000 years ago and some peats
are more than 10 metres deep.
Peatlands develop under a range of different wetland vegetation, including
lowland or upland fens, reed beds, wet woodland and bogs. The Commission of
Inquiry focuses mainly on blanket bogs and raised bogs on deep peat (depths
of at least 30-50 cm), while recognising the importance of other peatland types
such as fens.
Blanket bog in the Flow Country © Norman Russell
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Denitions as used in this report
Land with a carbon rich peat soil. The soil may or may not
be currently covered by peat forming vegetation.
Peat soils of depths greater than 30-50 cm1 and up to 12 m
in some places.
Vegetation composed of species, such as Sphagnum
mosses or cotton grass, that grow in waterlogged conditions
and that decompose only slowly. High water tables and cool
climatic conditions further slow plant litter decomposition,
forming peat.
Restoration returns semi-natural vegetation cover, with
its typical species and habitats, to damaged peatland,
reducing or halting carbon loss and ideally allowing peat
accumulation to take place again. Restoration management
may range from slight adjustments, such as altering
grazing levels, to more substantial works such as changing
hydrology through ditch blocking or stabilising peat through
re-vegetation of bare eroding peat.
A habitat where deep deposits of peat blanket the
landscape. Includes habitat areas with peat accumulation
as well as degraded habitat with peat oxidation and erosion.
Natural blanket bog is usually rich in Sphagnum mosses
although there are many degraded variants, often with less
Sphagnum and more sedges, grasses and heather.
Bog habitat characterised by an accumulation of peat that
rises above the surrounding landscape often in lowland wet
oodplains and/or often over surface of existing fen peat.
Includes both active and degraded versions with semi-
natural vegetation.
The benets people and society obtain from the natural
environment, eg regulating services such as climate change
mitigation through carbon sequestration and storage.
Peatlands
Peat-forming
vegetation
Restoration
Blanket Bog
Raised Bog
Ecosystem
services
Deep peaty soil
1 Peat soils are dened as having at least 30 cm depth of peat at European level, but have been mapped using
40cm depths in England and Wales, and 50 cm depths in Scotland and Northern Ireland. In many areas, the
accuracy of these maps means that there is considerable variation in the actual depth of peat in mapped
peatland areas (see JNCC 2011).
For full denitions please refer to the glossary provided in JNCC report 445 (JNCC 2011)
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Natural peat-forming blanket bogs and raised bogs are characterised by having
a two-layered structure, which inuences the way peat is formed, carbon is xed
and water ows.
The surface layer, the acrotelm, is composed of the most recently deposited
material (top 10-20 cm). This top layer has a live matrix of growing plants, most
often Sphagnum. Here, carbon is sequestered and peat is formed and passed
to the lower layer, the catotelm.
The base layer, the catotelm, remains permanently waterlogged and anaerobic.
The lack of oxygen slows decomposition to extremely low levels. This layer
therefore acts as a passive storage layer of deposited peat for millennia.
Without some form of living acrotelm, peat does not accumulate in the catotelm
(Lindsay 2010).
Within the surface peat layer, the water table uctuates and water moves quite
freely. In the permanently water-logged catotelm water movement is extremely
slow. Run-off and nutrient transfer almost all occurs in the upper peat layer, with
up to 95% of run-off conned to the top 10 cm (Holden 2009).
Peat Structure
Figure 1 Peat structure in a natural, functioning bog; reproduction with kind permission from Lind-
say (2010), based on Clymo (1992)
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Fens
Fens are important peatland habitats. The UK supports a wide variety of
different fen types, which are among our most species rich and rare habitats.
Restoration of fen peatlands is important, as these can support some of our
deepest peat, and have been widely subject to the most intensive drainage
and agricultural management, leading to rapid loss of biodiversity, stored
carbon and water regulating functions. Fen habitats are not fully covered by
this Commission of Inquiry, but recent years have seen an increase in UK fen
activity, notably the Wetland Vision Partnership www.wetlandvision.org.uk, the
Fen Management Handbook www.snh.gov.uk/docs/B823264.pdf the Great Fen
project, the Anglesey and Llyn Fens LIFE project and others.
Sutton Fen RSPB Reserve, Norfolk © Ben Hall, RSPB Images
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3. WHAT IS THE DISTRIBUTION
OF PEATLANDS?
“Peatland management remains both inuenced and dependent on continued
agricultural infrastructure of farms and crofts. As we move from the past policy
drivers which intensied environmental pressures, we now need the right
incentives for farmers to help deliver the peatlands in a state that provides
wider benets.”
Jonathan Hall, Head of Rural Policy, National Farmers Union Scotland
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Found from the tropics to the poles, and in 175 countries, peatlands cover
around 4 million km2 or 3% of the world land area (Joosten 2009). In Europe,
peatlands extend to ca. 515,000 km2. The UK has between 9-15% of Europe’s
peatland area and about 13% of the world’s blanket bog (Tallis 1998).
There are three main types of peatland in the UK: blanket bogs, raised bogs
and fens. All three types of peatland habitats are protected under international
and national wildlife law. They include six habitat types identied as priorities
for conservation within the UK Biodiversity Action Plan (Littlewood et al. 2010;
Natural England 2010; JNCC 2011).
The UK Biodiversity Action Plan lists 23,000 km2 of bog and fen peatland
habitat in the UK covering about 9.5% of the UK, with the majority in Scotland
(UK Biodiversity Group 1999). Peaty soils in the UK, however, are much more
extensive and indicate where peatland habitats existed in the past. Deep
peaty soils cover around 33,000 km2 with shallow peaty soils covering another
47,000 km2 – a third of all UK soils (JNCC 2011). In the UK, blanket and raised
bogs make up 95% of all peatland habitats (Table 1). The majority of UK bog
peatlands are in private ownership.
Figure 2 Distribution of peatlands across the world; reproduction with kind permission
from Joosten (2009)
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Soil map data UK BAP data
Shallow peaty or
organo-mineral soil
[km2]
Deep peaty or
organic soil
[km2]
Bogs
[km2]
Fens*
[km2]
England 7,386 6,799 2,727 80
Wales 3,592 706 718 62
Northern Ireland 1,417 2,064 1,609 30
Scotland 34,612 23,269 17,720 86
Total area 47,007 32,838 22,775 258
UK area cover 19.30% 13.48% 9.35% 0.11%
Table 1 Summary of organic-rich soils extent and bogs and fen UK BAP type extent; adapted with
kind permission from JNCC (2011)
* current best estimates of fen habitat, but actual area may be much larger (Peter Jones, CCW,
pers. comm.)
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Figure 3 Peat and peaty soils of the United Kingdom (map reproduced from JNCC 2011). Deep peat soils (dark
brown), shallow peaty soils (green), wasted deep peat soils (light brown). Peat in South-East England is largely
fen peat. Reproduction by permission of OS on behalf of HMSO@ Crown copyright and database Right 2010,
MLURI 100019294, AFBI 1:50000 soil digital Data, National soil Maps @ Craneld University, BGS 1:50000
digital data (license 2006/072)
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Peatlands in British Overseas Territories
UK Overseas dependencies also support some large areas of peatlands,
particularly in the Falkland Islands. The Falklands may support some of the
least disturbed soils on the planet, with soil processes progressing here, largely,
undisturbed for 150 million years. Some 45% of the 12,173 km2 Falkland land
area is thought to be blanket peat (over 5,470 km2) (Wilson et al. 1993). This
area is comparable to deep peat coverage in England. The remaining area of
lowland Falklands are dominated by shallower peaty soils.
Important peatland areas are also found in South Georgia, a Ramsar site with
coastal peatlands, the Bermuda islands with inland peat marshes and wet
woodlands as well as Gough and Inaccessible Islands of the UK overseas
territory of Tristan da Cunha, which are designated as a biological World
Heritage Site and a Ramsar site in recognition of their international importance
site for birds and wetland communities. Other examples include the mountain
top humid cloud forests of St Helena and Ascension Islands and peat swamp
forests in the Turks and Caicos Islands and the Cayman Islands.
The extensive peatlands in the UK overseas territories are threatened by many
of the same factors that have affected peatlands in the UK home territories: re,
livestock, drainage, agricultural improvement and forestry planting, leading to
erosion and potential loss of the peat carbon. In addition to these, the delicate
and unique ecosystems of many of these small island territories have been
threatened by the introduction, accidental or deliberate, of alien species, which
can overrun native vegetation or directly predate wildlife.
Work in the Falklands and Bermuda is now underway to restore and conserve
the peatlands and to prevent future threats. For more information see brief
summary of peatland in British Overseas Territories with web links to further
information (IUCN UK Peatland Programme 2011).
Peatland in the Falkland Islands © Jim McAdam
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4. WHAT KEY SERVICES ARE DELIVERED
BY PEATLANDS?
“There appear to be few downsides to peatland restoration and a real potential
for cost savings in providing long term public water supply. Peatland restoration
offers a more sustainable future in water quality terms, as we’re addressing
the causes of poor water quality, not treating the worsening symptoms.”
Andrew Walker, Catchment Development Leader, Yorkshire Water
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Peatlands are extremely important for human well-being (Bonn et al. 2009a;
van der Wal et al. 2011). What sets peatlands signicantly apart from other
ecosystems is their capacity for long-term carbon storage (Lindsay 2010;
Joosten 2011). Undamaged peatlands are waterlogged, which slows down
decomposition and enables semi-decomposed plant remains to be laid down
as peat. Carbon is removed from the atmosphere into the plant tissues by
photosynthesis and it is then stored in the dead plant remains, often over
millennia, as a thick layer of peat. This also allows for the preservation of
palaeo-environmental and archaeological remains. Since peatlands occur in
areas of high rainfall, peatland dominated upland catchments are also source
habitats for drinking water and play a role in ood water regulation. They also
provide places of solitude with a sense of freedom and inspiration for millions
of people. As waterlogged ecosystems, peatlands are habitats for many
specialised, rare and endangered species recognised as important under
international and national law. Many of these regulating and cultural benets
provided by peatlands take the form of non-market ‘public goods’ and are not
traditionally paid for through market transactions. The importance and value of
these services have been underestimated in the past.
In contrast, despite being less well suited for agriculture and forestry due to
their waterlogged condition, peatlands have been exploited for provisioning
goods, such as food and timber, often to the detriment of the ecosystem and
its provision of other services. In general, this production was encouraged
by grants and subsidies, e.g. for agricultural drainage and forestry planting
(Condliffe 2009). These incentives no longer remain, yet the true value of the
services provided by a functioning peatland is not fully reected in funding for
sustainable management. Below, we illustrate the potential of peatlands to
provide valuable services to society and the impact of damaging activities as
well as the potential for restoring these by focussing on four main services.
4.1 Climate regulation
Globally, peatlands store more carbon than the world’s rainforests.
Peatlands are globally important in the world’s efforts to stop dangerous climate
change for two reasons. Firstly, they store an enormous amount of carbon.
Peatlands cover only 3% of the world’s land surface yet form a huge store of
carbon, more than twice that of the world’s forest biomass, and containing 30%
of the total global soil carbon (Joosten 2011). They constitute the most spatially
efcient store of carbon of all terrestrial ecosystems. A loss of just 1.6% of
global peat would equate to the total global annual anthropogenic greenhouse
gas emissions. When peatlands are damaged e.g. by re or overgrazing
this carbon can be released, turning a carbon sink into a source. A growing
international awareness of their vulnerability is leading to an increased pressure
to minimize human impacts on peatlands (Joosten 2009; Verhagen et al. 2009).
Secondly, undamaged bogs remove carbon dioxide from the atmosphere
(sequestration) through photosynthesis in mosses and other peatlands plants
and the carbon is stored in the peat which is composed of the dead, plant
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remains. Temperate peatlands contain on average seven times more carbon per
hectare than any other ecosystem of that climatic zone. This is because even
the most productive non-peatland ecosystems eventually reach a stage where
the carbon capture slows down and the total amount of carbon stored in the soil
and vegetation levels off. In peatlands, the soil carbon store keeps growing as
the peat deposit deepens.
At a European scale, the UK’s peatlands contain among the highest
concentrations of stored carbon (Figure 4). Within the UK, peatlands
represent the single most important terrestrial carbon store with deep peat
bogs containing over 3,200 million tonnes of carbon (Worrall et al. 2010b),
approximately twenty times that of UK forests. Scotland holds around half of the
UK’s peatland carbon. This store can only be maintained, if peatlands remain
wet, or are rewetted where they have dried out. A loss of only 5% of UK peat
carbon would equate to the total annual UK human green house gas emissions.
It is therefore vital for the UK to avoid the huge losses arising from peatland
damage in order to meet its international obligations in tackling global warming.
Figure 4 Peatland distribution across Europe. The UK hosts a high percentage of deep peat
soils largely in the form of blanket bog peatlands; from Montanarella et al. (2006), reproduced by
permission of the journal Mires and Peat, acknowledging the European Soil Bureau Network and
the Joint Research Centre, Ispra (I), European Commission as the original source.
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Semi-natural and natural bog peatlands may remove approximately
30-70 tonnes of carbon per km2 per year from the atmosphere (Billett et al.
2010; Worrall et al. 2010b). However, peatlands also produce methane
– a greenhouse gas that is several times more potent than carbon dioxide.
Some studies suggest that in the short-term, peatland carbon sequestration is
at times outweighed by methane emissions. In the long-term, however, given
the relatively short lifespan of methane in the atmosphere, the amount of carbon
sequestered outweighs the methane emitted. So, overall, intact blanket and
raised bogs reduce the amount of greenhouse gases in the atmosphere.
Peatlands occur naturally in wet places.
A continuously high water table prevents
normal decomposition of plant material.
In this way, carbon that plants assimilated
during their lifetime is stored in the soil
(carbon sequestration). This leads to the
formation of peat, which is deposited
layer on layer over millennia and stored
sometimes for millions of years (carbon
storage).
Drainage, peat extraction, afforestation,
inappropriate burning or conversion to
agriculture, lower the water table. As a
result the peat becomes exposed and
aerated. The stored carbon reacts with
oxygen, decomposes and is released
as carbon dioxide into the atmosphere
(greenhouse gas emissions).
Furthermore, these activities lead to
degradation of wildlife habitat, erosion and
a decline in water quality as well as to the
loss of the historic peat archive.
Peatlands need to stay wet
Figure 5 Schematic gas uxes of carbon dioxide from natural peatlands and degraded peat-
lands; reproduction with kind permission from DER SPIEGEL (Bode et al. 2010)
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When drained, peatlands become major sources of greenhouse gases.
Small disruptions to the hydrology of peatlands can upset the balance from
carbon sink to carbon source. Lowered water tables allow oxygen to penetrate
the formerly permanently waterlogged peat allowing rapid decomposition
(Figure 5, 6).
Damaged UK peatlands are releasing almost 3.7 million tonnes CO2e (Carbon
dioxide equivalent2) each year (Worrall et al. 2011) – equal to the average
emissions of around 660,000 UK households, more than all the households of
Edinburgh, Cardiff and Leeds combined.
How much CO2 is released from drained peatlands depends on the type of land
use and geography. The more intensively the peatland is drained, the quicker
the peat degrades (oxidises) and the higher the losses of greenhouse gases.
These emissions continue for as long as the peat remains drained and may
continue for hundreds of years until all the peat is lost. It is this combination
of ‘large’ and ‘long-term’ emissions that make the climate effect of drained
peatlands fundamentally different from that of other ecosystems (Joosten 2011).
There are several routes by which soil organic carbon is lost from peat bogs
(Worrall et al. 2010b). Losses can be as a gas – carbon dioxide (CO2) or
methane (CH4), as particulate organic carbon by direct erosion or as dissolved
organic carbon in rainwater drainage and runoff. Carbon borne away in water
may generate greenhouse gases further downstream (Battin et al. 2008;
2 The carbon dioxide equivalent (CO2e) allows the different greenhouse gases to be compared on a like-for-like
basis relative to one unit of CO2. www.carbontrust.co.uk
Figure 6 Annual CO2 emissions of peat soils are higher under reduced mean annual water tables; reproduction
with kind permission from Couwenberg and Van den Akker (see also Verhagen et al. 2009; Couwenberg et al.2011)
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Pawson et al. 2008). Different types of losses and routes of loss impact on other
ecosystem services such as drinking water quality. There are now signicant
advances to develop standardised methods for assessing greenhouse gas
emissions from peatlands using vegetation cover as a proxy (Couwenberg et al.
2011). In addition, research is in progress to establish the extent to which non-
gaseous particulate or dissolved peatland carbon lost into watercourses results
in greenhouse gas emissions.
Globally 500,000 km2 of drained peatlands release as much as 2,000 million
tons of CO2 annually, with the UK as one of the top twenty peatland CO2 emitting
countries (Joosten 2009, 2011). International climate change agreements are
focussing on reducing the emissions of greenhouse gases with targets of up
to 80% reduction on 1990 levels by 2050. The United Nations Framework
Convention on Climate Change (UNFCCC) provides the framework for action
to reduce greenhouse gas emissions (Kaat & Joosten 2009). The technical
capacity, practical methodologies and user-friendly guidance for reporting and
accounting for the most signicant sources of emissions from peatlands are
already available or within reach before the start of the Kyoto Protocol’s second
commitment period in 2013 (Joosten 2011). Under proposed changes to the
Kyoto Protocol rules on land use, peatlands could feature more strongly in
national greenhouse gas accounting processes, with greater recognition given to
the benets of rewetting damaged peatland. Standards for trading carbon credits
from peatland on the high-quality-level international voluntary market have been
available since March 2011 with a veried carbon standard (www.v-c-s.org).
Restoration of peatlands is a low cost and effective method of reducing
greenhouse gas emissions from peatlands. This is true for heavily degraded and
eroded peat bogs as well as for those still supporting bog habitats where the
water levels are lowered.
Gas ux monitoring at Forsinard © Norman Russell
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Peatland rewetting may be signicant in relation to national climate change
targets. Figure 7 illustrates that rewetting a gripped peatland by blocking
drainage ditches has the potential to reduce emissions by over 250 tonnes
CO2e per km2 per year. This takes into account the temporary, increased
methane emissions which can arise in some situations from restoring peatland.
Even with methane emissions the benets of restoration clearly outweigh the
carbon losses from damaged peatlands (Baird et al. 2009).
The climate change impacts of peat bogs and restoration
The carbon benets of peatland restoration are threefold: reduced loss,
transitionary gain and a long-term gain (from Worrall et al. 2010b).
Reduced loss: Restoration changes a damaged peatland from a large net
source of carbon to a greatly diminished source.
Transitionary gain: The transitionary stage from damaged to restored peatland
can be of carbon benet due to both reduced losses and net gains of carbon.
For example, gully restoration might allow the re-vegetation of a gully oor,
reducing peat erosion and allowing peat to accumulate in the gully as well as
trapping carbon in the new vegetation.
Long-term gain: Restored peatlands generally accumulate carbon and provide
a long-term sink as atmospheric carbon is laid down as peat. Not all restored
peatlands may be immediate carbon sinks (due to localised, temporary,
methane emissions in some cases) but all have a smaller global warming
potential than damaged peatlands. Restoration is therefore benecial from a
greenhouse gas emissions mitigation perspective (Baird et al. 2009; Worrall et
al. 2010b; Joosten 2011).
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Blocked grip, Flow Country
© Norman Russell
Results of grip damming
© Andrew Keen
Brown syke grip © Andrew Keen
Sphagnum, the sign of a
healthy bog © RSPB
Figure 7 Global Warming Potential (GWP) of UK peat bogs under natural, drained and rewetted state (gures are illustrative, using
conservative estimates, based on Silvola et al. 1996; Byrne et al. 2004; Wallage et al. 2006; Holden et al. 2007; Minkkinen et al.
2007; MacNamara et al. 2008; Billett et al. 2010; Worrall et al. 2010b; Couwenberg et al. 2011; Worrall et al. 2011).
Global warming potential of peat bogs
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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4.2 Biodiversity conservation
Peatlands form a highly signicant part of the UK’s natural heritage value.
Nationally, conserving and reversing the deterioration of Sphagnum dominated
bog habitat is a major priority for the UK Biodiversity Habitat Action Plans for
blanket bog and raised bog and for several Species Action Plans. Because of
the extreme conditions in peatland habitats they generally lack a high diversity
of species per unit area. But those plants and animals which do occur are
of high biodiversity importance because of their rarity or threatened state
nationally and internationally. The presence and abundance of these important
peatland species gives a more valuable indication of the state and health of the
ecosystem than simply using measures of species diversity or richness.
Peatlands support a large proportion of the plant and animal species which are
adapted to waterlogged, acidic and nutrient-poor conditions (Littlewood et al.
2010). These species include a range of rare, threatened or declining animals
and plants, such as rare species of Sphagnum mosses (e.g. Sphagnum austinii)
or invertebrates (such as the bog hovery Eristalis cryptarum). UK peatlands
support an important bird assemblage with an exceptionally high proportion
of species with legal protection under UK and European conservation law.
Bird species for which UK peatlands are especially important for conservation
include golden plover (Pluvialis apricaria), greenshank (Tringa nebularia),
red-throated diver (Gavia stellata), dunlin (Calidris alpina) and common scoter
(Melanitta nigra). Areas of peatland, such as the Flow Country in Scotland,
support some of the highest breeding densities of greenshank in Europe.
Sundew, a carnivorous plant © Norman Russell
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Blanket bogs and raised bogs are priorities for
conservation under the EC Habitats Directive.
The high importance of UK peatland habitats,
bird, invertebrate and plant assemblage is
recognised in the designation as Special
Protection Areas (SPA) and Special Areas
for Conservation (SAC) under EU wildlife
legislation. In England, 2196 km2 of deep
peaty soils are designated as SPA and/or
SAC. For Scotland the areas of qualifying
habitat in SACs are: blanket bog 2164 km2,
active raised bog 22 km2 and degraded raised
bog 19 km2. Nationally, a large proportion
of peatlands are included in land areas that
are designated for their biodiversity as Sites
or Areas of Special of Scientic Interest
(SSSI/ ASSI) and for their landscape value
as National Parks and Areas of Outstanding
Natural Beauty. In England, 2478 km2 SSSIs
are on deep peaty soils, of which 2226 km2 is
blanket bog or raised bog.
As peatland species are highly adapted to
acidic, waterlogged and nutrient-poor peatland
conditions, they are very sensitive to changes
in land management activity as well as
climate change and atmospheric deposition of
pollutants.
Northern Emerald Dragon Fly (Somatochlora arctica)
© Laurie Campbell/SNH
Bog cranberry © Norman Russell
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Dunlin © RSPB
Sphagnum mosses are key to peatland ecossystem functioning
Sphagnum mosses are keystone species for providing a range of ecosystem
services. Sphagnum mosses are the main peat forming species, thereby
contributing to carbon sequestration and carbon storage. Furthermore,
Sphagnum-dominated vegetation does not facilitate methane release unlike
vegetation dominated by various vascular plants (Frenzel & Karofeld 2000).
Some Sphagnum species hold up to 20 times their dry weight in water and with
their brous structure play a signicant role in moderating water ow and thus
helping to reduce downstream impacts of heavy rain.
There are 34 Sphagnum species in the UK, of which only ve species are major
peat formers, and two of these are rare today. Sphagnum species have their
growing points at the tips and are therefore easily damaged or destroyed by
grazing, burning, trampling and drainage.
Sphagnum tenellum © Andy Amphlett
Figure 8 Dunlin populations are closely associated with areas of high Sphagnum
cover in peat bogs; graph reproduced with kind permission of RSPB (Stephen et al. 2011).
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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A fully functioning, carbon sequestering peatland contains a mix of specialised
peatland plant species (with a prominent representation of Sphagnum mosses).
Lowered water levels are characterised by a replacement of Sphagnum-rich
hummocks, lawns and pools to a atter surface dominated by heathland species
(sedges, grasses and heather). Figure 9 also shows how particular species of
bog Sphagnum, some of which are nationally important, are vulnerable to falling
water tables (Lindsay 2010). Vegetation type and structure can therefore be an
effective guide to the state of a peatland.
Peatlands are popular places for people to visit, for example, the peatland
dominated upland English National Parks receive close to 60 million day visitors
a year. This is on a par with visits to the UK’s greatest monuments. Typical
peatland wildlife provides an unusual and stimulating experience that attracts
visitors from the UK and abroad, providing employment and tourism income
(Macpherson Research 1997). Many peatlands are in remote upland areas and
therefore offer experiences of wilderness and solitude, physical challenge and
inspiration, not easily experienced elsewhere (Bonn et al 2009b).
Peatlands are an important visitor attraction © Norman Russell
Figure 9 Effects of a lowering water table on vegetation. With lowered water table, the peat surface
will also subside and shrink - not shown in this graph for simplicity; reproduction with kind permis-
sion of Lindsay (2010)
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4.3 Water regulation
Peatlands are the headwaters for some of the UK’s major water supply areas.
They can also play a role in regulating ood ows to downstream areas.
Water derived from functioning peatlands is naturally of very high quality.
However, over the last 30 years, the amount of dissolved organic carbon (DOC),
the brown colour of peaty water, has doubled across many UK catchments
(Labadz et al. 2010). To meet drinking water quality standards set out in the
European Drinking Water Directive, DOC has to be removed from drinking
water supplies, as otherwise chlorination during water treatment results in the
production of carcinogens. Removing DOC can be extremely costly for water
companies, especially if new treatment processes need to be added.
A number of reasons for increased DOC have been put forward, including
responses to increased temperatures (Worrall & Burt 2004) and recovery from
the effects of acid rain (Monteith et al. 2007). These processes act at a large
spatial and temporal scale. At a localised, catchment scale, there is evidence
that peatland condition and management can contribute to colour production
with damaged peatlands being associated with higher colour. For example,
dominant heather cover can lead to enhanced DOC levels in comparison to
Sphagnum-dominated blanket bog vegetation (Limpens et al. 2008, Holden et
al. 2011). Some studies point to the importance of recent burns in increasing
water colour (Yallop et al. 2010). The evidence on the direct effects of burning
is conicting, possibly because of the use of different methodologies (Worrall
Figure 10 Effects of grip blocking on DOC levels. While DOC levels initially increased in grips after
blocking in the rst 18 months, overall DOC concentrations in streams, however, did not change and
reductions in ow led to very large reductions in load (data from Lorraine Wilson, see also Wilson et al.
2011b)
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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et al. 2010c; Holden et al. 2011) and may be linked to the different scales of
investigation of these studies (Clark et al. 2010b).
Restoring peatlands within water catchments can help to improve water quality
(as peatlands often lie across catchment borders, action may be required over
more than one catchment). Grip blocking has been found to reduce dissolved
organic carbon in streams (Wallage et al. 2006; Armstrong et al. 2010; Wilson
et al. 2011b). Sediment and associated particulate organic carbon loads from
water coming out of degraded peatlands can also be very high, with bare peat
areas exporting up to 260 kg sediment per km2 per year or 100 kg carbon due
to erosion (Evans et al. 2006). Re-vegetation can stop surface erosion within
3-4 years and thereby minimise sediment and particulate organic carbon export
(Evans et al. 2009).
Restoration of damaged peatlands may also contribute to some amelioration
of ooding. The water table in intact peatlands uctuates a little, but is usually
close to the surface. The capacity to store signicant additional water is
therefore low and rain runs off intact peatlands quickly. However, the creation
of drainage channels accelerates the rate at which water leaves a peatland.
Blocking grips is likely to lead to less ashy peak ows a longer water retention
time and therefore slower run off rates (Figure 11, Labadz et al. 2010; Wilson et
al. 2011a). The greatest effect will result from blocking grips with large upslope
‘catchments’ (contributing areas) (Lane et al, 2004). Blocking grips elsewhere
in the peatland unit, however, is still important for restoring peatland function
including increased Sphagnum growth.
Run off may also be accelerated by the loss of vegetation, increased areas
of bare peat and desiccation, in damaged peatland, which can lead to peat
becoming so dry that water will no longer inltrate and thereby enhance quick
run-off and potentially exacerbate ood impact. Conversely, in areas with
vegetation cover ow peaks can be reduced and slightly delayed compared to
High levels of dissolved organic carbon (DOC)
may be lost from degraded peatlands
© Martin Evans
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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bare peat (Grayson et al. 2010). Catchment modelling indicates similar results
at a large scale (Holden in Bonn et al. 2010) and plot scale studies point to
Sphagnum being important in reducing ow velocities (Holden et al. 2008).
Slower run off and less ashiness helps with ood amelioration. Whilst grip
blocking does seem to have the potential to inuence local runoff, evidence is
still being gathered about how far these benets can be seen downstream.
4.4 Sense of place: historic environment conservation
Peatlands offer a tremendous insight into our past (Geary et al. 2010). Some of
our peatlands began forming after the last Ice Age and others developed later,
but UK peatlands in both uplands and lowlands have their origin in prehistory.
Some of the most evocative archaeological discoveries of the last century
come from peatlands. For example, the 4th millennium BC footpath, the ‘Sweet
Track’ in the Somerset Levels, and the best preserved ancient human remains
in the UK, the ‘bog body’ known as Lindow Man from Cheshire, were found in
peatlands.
Figure 11 Change in baseow and runoff after grip blocking. Blocking grips leads to reduced runoff with more
water retained on the bog (Efciency index) and a less concentrated ood response (Flashiness index).
Data from Lorraine Wilson, see also Wilson et al. (2010; 2011a)
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Peatlands maintain a unique archive of our cultural
past. Beneath the peat, large tracts of prehistoric
landscapes lie protected from modern disturbances.
The waterlogged peat matrix itself is an oxygen-
free environment, and in such conditions objects
and structures made of wood and plants survive for
millennia. The peatlands in the UK have preserved
some of the oldest roads and tracks, houses and
settlements, monuments and artefacts. It has been
estimated that in excess of 20,500 archaeological
sites exist beneath and within the peat in the UK
(Geary et al. 2010). Peatlands themselves also form
part of the historic landscape and contain evidence
of peat cutting, which goes back to the Roman period
and continued through the Middle Ages, offering an
alternative source for fuel. Some peatlands were
designated as medieval royal hunting forests (forest
in this period meant any land supporting game and
was not necessarily tree covered).
Lindow Man – the Iron Age bog body retrieved
during peat cutting in Lindow Moss, Cheshire, in
1984 © Trustees of the British Museum
Complex stratigraphy of peatlands tells stories about past
environmental change © Norá Bermingham
Late Neolithic trackway and platform on Hateld Moors, South Yorkshire ©
Henry Chapman
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Peatlands also record environmental change, as the peat layers of different
depth can be dated. This archive includes the history of the peatlands
themselves, in the form of the remains of the plants that make up the peat and
of the insects that lived on the bogs. We can also learn of past changes in the
landscape beyond the peatlands, which can be reconstructed from the pollen
that blew into peatlands. Occasionally, microscopic glass-like particles from
volcanic eruptions, known as tephra, settled down on peatlands. Together,
these archives of the environmental past provide unequalled information on
past climate and environmental change. Studies undertaken in peatlands have
contributed greatly to our understanding of global climate change (Charman
2002).
Peatlands provide many people with a ‘sense of place’. As large semi-natural
landscapes, they can provide local communities a sense of inspiration and
connectedness with their natural environment. This is reected in many ancient
local stories, legends and poems. Whilst peatlands have come to be regarded
and valued as wildernesses in some places, elsewhere peatland landscapes
have been formed through the centuries-long utilisation of the peat itself, and
this activity has contributed to the way communities understand peatlands.
Many communities have memories of people utilising peatlands for fuel,
eld sports or agriculture in the past and more recently. Identication and
presentation of this cultural and natural heritage can benet local economies
through the development of associated tourism.
Peat itself is used in some products and production processes. For example,
Sphagnum mosses were used for surgical dressings in the First World War.
In parts of the North and West Highlands and Islands of Scotland peat is still
cut and used as a fuel. Peat smoke is used in the production of some Scottish
single-malt whiskies, with the smoke absorbed by the malt giving a distinctive
avour. The water sources for many whisky distilleries also arise in peatlands. In
this way, peat has a signicant role in an important part of the Scottish economy
and helps dene local identities. One of the issues facing peatlands is that
memories of the past activities have largely involved damage to the peatland.
The challenge ahead is to manage peatland uses in ways that minimise the
damage and to look at new economic and employment opportunities such
as recreation and tourism or work in peatland restoration with volunteers and
contractors.
When peatlands deteriorate, their ability to provide a cultural and environmental
archive diminishes. Peat extraction, drainage, and other damaging land
management cause the exposure, oxidation and eventual destruction of these
archives. Peatland restoration is needed in order to preserve the historical value
of peatlands for future generations.
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IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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5. WHAT IS THE STATE OF UK PEATLANDS?
“Making a commitment to maintain and restore peatlands in line with national
and international biodiversity objectives offers the prospect of wider carbon and
water benets. There is clear evidence on the benets of peatlands to society
and, critically, mounting experience on how to manage them across the UK.”
Susan Davies, Director of Policy and Advice, Scottish Natural Heritage
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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The best available evidence suggests that less than 20% of UK blanket bog is
in a natural or near-natural condition (Littlewood et al. 2010). The majority of
UK peatlands are not peat forming: 16% are severely eroded, 10% have been
afforested, 11% are affected by past peat cutting and 40% have been modied
or destroyed by conversion to agriculture (Littlewood et al. 2010).
Within the most important, nationally and internationally protected sites (SSSIs/
SACs / SPAs), only around half (58%) of the blanket bog habitat is considered
to be in favourable condition (JNCC 2011). Of the remainder, only 15% is
considered to be recovering as a result of restoration work. For designated
lowland raised bog sites, the situation is even worse, with only around 20%
considered to be in favourable condition although 35% of the remainder is
under restoration management.
Peatland species are also under threat. Most of those identied as priority for
conservation under UK Biodiversity Action Plans (BAP) are still declining (JNCC
2011).
The UK Blanket Bog Habitat Action Plan set a target of restoring 845,000 ha
of blanket bog by 2015 (UK Biodiversity Group 1999), of which 620,000 ha
could be readily restored by adjustment in management. There are also many
more heavily eroded areas that need intensive restoration, including 22,500 ha
targeted by the UK BAP.
It is difcult to present a detailed picture of the state of UK peatlands because
different countries within the UK have developed different soil denitions
and different approaches to recording land use and cover (JNCC 2011). For
Great Britain (excluding Northern Ireland), the Countryside Survey 2007 data
indicates that, among survey kilometre squares with the most organic soils,
around a quarter of the survey squares remain dominated by “bog” or blanket
bog vegetation. However, for England for example, this matches only around
half of the area mapped as BAP priority habitat (JNCC 2011) suggesting some
degradation. Some 18% of this sample area is vegetated with acid grassland,
11 % is planted with coniferous forest and 13% supports upland heath, perhaps
reecting rotational burning management.
Scotland retains the largest areas of semi-natural and bog habitats over its
peatlands, although the Land Cover Mapping for Scotland indicates large
areas of peatland dominated by “moorland” and coniferous forestry as well as
bog vegetation. England’s blanket bog peatlands are largely semi-natural but
around a third of English blanket peatlands are subject to rotational burning,
a fth have been drained by upland grips and a seventh are severely eroded.
England’s raised bog peatlands retain less bog or semi-natural vegetation:
two fths have been drained for agriculture, a sixth are afforested and at least
a seventh continues to be affected by peat extraction. Almost all blanket and
raised bog in England is subject to damaging levels of historic atmospheric
sulphur deposition and ongoing nitrogen deposition. In Wales, three fths of
the blanket bog habitat is described as “modied” (often supporting heath or
grassy vegetation) and a little under half the raised bog habitat is also modied.
Northern Ireland’s blanket bog peatlands are mainly vegetated with bog and
semi-natural vegetation, although most have been affected by drainage and
peat cutting in the past. Northern Ireland’s raised bogs continue to decline in
condition and extent.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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The overall picture shows that the majority of upland blanket bogs retain semi-
natural vegetation, but continue to suffer the legacy of past activities such as
peat cutting and moorland drainage. They are subject to continued large-scale
land management such as rotational burning or forestry and may be subject
to damaging pollution. The UK’s raised bog peatlands are subject to similar
threats, but continue to suffer from ongoing or recent peat extraction and
have been subject to greater agricultural intensication. The issues faced by
peatlands within the UK are similar across all constituent countries and affect
huge areas of our most treasured wildlife habitats and landscapes. Past and
present management of our peatlands and the vegetation this has created,
continue to affect the ability of peatlands to deliver the key ecosystem services
they provide to the benet of society.
There are different stages and drivers of bog degradation
i. Intact fully functioning peatlands
Intact or semi-natural peatlands are normally
peat forming, because the water level
remains high throughout the year.
ii. Degraded peatlands
Degraded peatlands have different
characteristics on a continuum between
slightly damaged bog and bare peat.
These peatlands may have been affected
by drainage or a combination of land
management activities and pollution. The
vegetation composition and structure reect
the degree of change with dominance of
bog mosses being replaced by grasses or
heather.
Drained Weardale bog © North Pennines AONB Partnership
Functioning blanket bog, Forsinard © Norman Russell
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Some of the key damaging impacts are:
Gripping (or ditching): drains are cut into
the peat to lower water levels. Large areas
of peatland were drained with agriculture
subsidies in the late 20th century. Although
new drains are no longer funded, the old
drains continue to have an effect.
Afforestation: about 10% of UK blanket
bog has been planted with commercial
forestry. Afforestation on deep peat may
require drainage, cultivation and fertilisation,
which can lead to peat shrinkage, cracking
and oxidation which signicantly increases
greenhouse gas emissions. Since 1990,
there has been a steep decline in new
plantings on deep peat soils. The UK
Forestry Standard (Forestry Commission in
press) discourages planting forests on deep
peat soils and on sites that would affect the
hydrology of adjacent bog sites. In Scotland,
there is an interim general presumption
against woodland creation on soils with peat
exceeding 50cm in depth. Re-stocking deep
peat sites is discouraged, and these areas
can be the focus for open habitat restoration
(Anderson 2010; Morison et al. 2010).
Sheep and deer management: heavy
grazing and trampling by sheep and deer
changes both the composition of vegetation
and its structure. Overgrazing damages
sensitive plants and can cause more rapid
surface water ow. It generally increases
erosion, eventually leading to bare peat
and gullies. Light grazing may be benecial
for peatland biodiversity helping reduce
competing vegetation.
Fire: managed burning on sporting estates
is used to encourage new heather growth
with a varied age structure for grouse.
Poorly managed burning on blanket bog
can damage bog vegetation and encourage
heather growth. Burning for livestock and
deer is widespread, but more sporadic in
frequency and less well recorded, though
individual burns tend to cover larger areas.
Over frequent burning can damage blanket
bog vegetation causing peat degradation.
Upland grazing © Penny Anderson
Brown syke grip © Andrew Keen
Afforested peatland in the Flow Country © RSPB
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Damaged peat bogs are drier and thus
the risk of accidental wildre is particularly
high and one of the most severe threats
to peatland carbon stores, water quality
and wildlife. Wildres are also extremely
expensive. For more information see work by
the FIRES partnership group (McMorrow et
al. 2009; FIRES 2010).
Windfarms: the main new built development
activity on peatlands is for windfarms (Stunell
2010) and communication mast construction.
Associated works, such as access tracks and
turbine foundations, can damage peatland
hydrology causing the vegetation to change
or allow erosion with ecological and carbon
loss effects often beyond the footprint of
the construction area. A methodology for
calculating the carbon impact of windfarms
on peat has been developed (Scottish
Government 2011). Planning guidance and
voluntary agreements with the wind industry
recognise the need to limit the carbon
impact of development and to avoid deep
peat and areas of high environmental and
landscape signicance (Scottish Renewables
2010). Windfarms can also be associated
with peatland restoration work to help bring
carbon and ecological improvements.
Commercial peat extraction: commercial
peat extraction occurs mainly on raised
bogs to provide peat for gardening. The
mechanised peat removal has a major
ecological impact, stripping away the living
layer and subsequently exposing large
quantities of peat to oxidation and loss of
carbon. Neighbouring areas of bog within
the same hydrological unit can become
degraded as a result of the drastically
lowered water table. Currently, nearly 3
million cubic metres of peat are sold for
horticultural use every year in the UK, one
third of which comes from UK peatlands. The
main users are amateur gardeners (69%),
followed by industry (30%) and a small
percentage by local authorities (1%) (Defra
2010). Most peat use in the UK can readily
be replaced by more sustainable alternatives.
The growing media industry has developed
high quality products often using composted
green wastes which are now widely used.
Windfarm south of Farr, Inverness-shire © Duncan Brown
Heather burn © North Pennines AONB Partnership
Commercial peat extraction © RSPB
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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iii. Bare peat
Bare peat can arise over large areas, after
commercial peat cutting or in areas of heavy
degradation arising from land management
and pollution, e.g. by erosion started by
wild res, intensive trampling by livestock,
atmospheric deposition of pollutants or a
combination of these.
Bare peat can be exposed after wildres on
drained peatlands.
Gully erosion is a localised form of bare peat.
iv. Cultivated peatland
Cultivated peatlands still retain a signicant
depth of peat, but the plant cover has been
articially changed for agriculture, e.g. to
grassland for grazing or to arable crops. This
is generally found on lowland peatlands,
particularly fens, but also widespread
on some raised and blanket bog areas
especially in northwest England and the
north and east Highlands of Scotland.
Wasted peatland has lost both its peat-
forming vegetation and a signicant depth of
peat soil. Agriculturally wasted peatlands are
thought mainly to occur in lowland England,
however, extensive examples also occur in
Wales.
Bare peat on Kinderscout © Aletta Bonn
Carrots growing on peaty soil on Lakenheath Fen, Suffolk, in 1995
© Andy Hay (RSPB Images). Since acquiring the site in 1995, the
RSPB have been working to restore 200ha of arable land back to
a wetland.
Eroded gully © Aletta Bonn
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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5.1 Burning on peatlands
During the public consultation process, stakeholders suggested that managed
burning was an important driver of ecological change on peatlands. It was
considered that other key drivers, such as forestry (Morison et al. 2010),
wildres (FIRES 2010) or peat extraction for horticulture (Defra 2010), were
effectively reviewed elsewhere. The Inquiry therefore included managed burning
as a review topic, focussing on blanket bog and raised bogs, as distinct from
burning on upland heath.
Burning has occurred over centuries and the palaeo-ecological record shows
that many peatlands shifted from a Sphagnum dominated vegetation to less
peat forming vegetation after re. Understanding the consequences of managed
burning today needs to be seen in the context of the current damaged state
of many peatlands having been affected by past re, drainage and intensive
livestock grazing.
Managed burning on sporting estates is used to encourage new heather growth
to create a mosaic of stands of varied age structure for grouse (Worrall et al.
2010c), particularly on upland heaths on mineral soils or shallow peat. On deep
peat the practice is largely restricted to the east Scottish Highlands, Southern
Uplands and the Pennines (see Figure 12). Burning for sheep grazing is
widespread but more sporadic and less well recorded.
Figure 12 a) Distribution of peat soils in the UK (see Figure 3 this report, reproduction with permis-
sion from JNCC 2011). b) Burn intensity index across the UK. The index of burning reects the
extent of ‘strip’ burning presented at a 10 km resolution from mainly 2005 – 2006 satellite images.
Note, Shetland is omitted, but no strip burning occurs there; reproduction from Anderson et al.
(2009) with permission from Elsevier
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Poorly managed ‘hot’ burns can have severe damaging consequences for
peatland ecology, hydrology and soil processes. Such burning can degrade
bog habitat, with reductions or loss of key bog species and structural diversity
and can encourage more typically heath species (Ratcliffe 1964; Rowell 1990).
Burning can also impact on aquatic invertebrate communities in watercourses
in peatland catchments (Ramchunder et al. 2009). Recovery back to bog
species after a re depends on the frequency and intensity of the burn along
with other factors such as the condition of remaining bog vegetation, water
levels, livestock numbers and altitude. It has been suggested that ‘cool’ burns,
under the right controlled conditions, may be compatible with the initial stages
of peatland restoration management while rewetting takes place. There are few
studies on the benets and practicalities of burning over other techniques such
as cutting or layering (Lunt et al. 2010).
In bogs with high water tables and ample Sphagnum growth, burning should
not be necessary as the growth of Sphagnum forces heather to generate new
shoots as the peat builds up (Adamson & Kahl 2003).
A number of studies point to the importance of vegetation type being
associated with different greenhouse gas balances. Sphagnum dominated
vegetation with a high water table is shown to have greenhouse gas benets
over heather dominated deep peat (Lindsay 2010; Couwenberg et al. 2011).
Thus if management alters the vegetation cover of sites, it is likely to alter the
greenhouse gas balance (Worrall et al. 2010b)
Studies suggest that there are benets for carbon budgets from the absence
of burning on deep peat compared to burning (MacDonald 2008; Worrall et al.
2010a). The specic impacts of ‘cool’ burning over other forms of burning on the
overall carbon budget is not yet clear.
Water colour is a major concern in drinking water catchments and an indicator
that carbon is being lost from the ecosystem. Recent reviews suggest that
on balance, burning impacts on water quality and results in increased colour
(Holden et al. 2011). Sphagnum and cotton grass dominated vegetation has
been associated with the lowest levels of colour (Limpens et al. 2008). Areas
of dominant heather vegetation on deep peat (Holden et al. 2011) and areas
of new burn on deep peat have been associated with increased water colour
(Yallop et al. 2010). Further work is required to determine whether the source of
this colour results from the act of burning or subsequent dominance of vascular
plants over Sphagnum.
Good practice guidance on prescribed burning has been produced in
partnership with statutory agencies and moorland managers (Defra 2007;
SEERAD 2008; WAG 2008) with proposals for further guidance to be developed
(Best Practice Burning Group 2010). There is general agreement amongst
these groups that burning should be managed to avoid adverse impacts on
active bog and to seek to restore blanket bog on deep peat areas modied by
past land management and/or atmospheric pollution. Research is underway
to assess the effects of burning on peatland biodiversity, river eco-hydrology
and carbon export (e.g. EMBER and several ongoing Defra funded research
projects).
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
61
In a changing climate with greater emphasis on mitigation and adaptation,
determining appropriate burning management on degraded deep peat areas
requires further monitoring and research. A more coordinated and consistent
approach to describing the different peatland types and states is urgently
required in future studies to avoid the confusion that has arisen from generic
research on “peatlands” and “heather moorland”.
5.2 External drivers: pollution and climate change
Atmospheric deposition of pollutants also affects peatlands. Whilst the levels
of pollution cannot be directly altered on site, it may be possible to reduce the
level of impact on the peatland habitat through site management to limit other
compounding pressures, such as drainage and re. Historically, atmospheric
pollution across the South Pennines and South Wales has contributed to the
loss of Sphagnum and the acidication of head waters and soils. Sulphate
deposition has been linked to inhibition of dissolved organic carbon production
(Monteith et al. 2007), and recovery from acidication has led to a rise in water
colour. Nitrogen deposition, arising from fertilisers, transport emissions and
factory farming can also causes species change and, for example, allows for
Sphagnum species, which are typically found in more nutrient-rich fens, to grow
on bogs. In England, it has been estimated that 98% of blanket bog peatlands
and 100% of raised bog peatlands are subject to levels of nitrogen deposition
that are damaging to these habitats (Natural England 2010).
Climate change is predicted to make damaged peatlands more vulnerable
to degradation through drying, particularly where temperatures increase and
rainfall decreases (Clark et al. 2010c; House et al. 2010). Climate change
is also likely to change the species composition, affect water quality, and
potentially increase greenhouse gas emissions from peatlands, although it is not
yet possible to determine the rate at which this might occur (Clark et al. 2010a).
The peat archive shows that peatlands have previously responded to changes
in climate by shifts in peat forming vegetation (biotic response) to moss species
which can tolerate drier climates and continue the role of laying down peat and
storing carbon (Dise 2009; Lindsay 2010). Peatland restoration is particularly
important given the threat of climate change, as restored peatlands are likely to
be more resilient to additional stresses from climate change impacts.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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6. OPTIONS FOR THE FUTURE
“With an increasing responsibility to deliver more sustainable land management,
peatlands demonstrate how this can be done with minimal outlay in comparison
with other less understood interventions.”
Ian Crosher, Peat, Soils & Climate Change Adaptation, Natural England
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
64
We are at a pivotal point in determining the future of our peatlands. The global
threat of ongoing loss of biodiversity (TEEB 2010; UKNEA 2011) and climate
change requires urgent action to help reduce greenhouse gas emissions and
provide adaptive strategies for resilient ecosystems.
Damaged UK peatlands are already releasing almost 3.7 million
tonnes CO2e each year (Worrall et al. 2011) - equivalent to the average
emissions of around 660,000 UK households. These emissions are
likely to increase with further peatland deterioration as the climate
changes. Net emissions can be reduced through restoration action.
Peatlands are recognised as one of our most threatened and valuable
habitats under international and national wildlife legislation. However
only 18% of bogs have vegetation that can be described as ‘near-
natural’.
Water companies are acutely aware of the cost implications of brown
water from degraded peatlands. Rising levels of dissolved organic
carbon from peat catchments has a high treatment cost that inevitably
means higher water bills.
Climate change is likely to cause more extreme weather. Damaged
peatlands may exacerbate ooding and have a higher wildre hazard
- highly damaging to the peat carbon store and biodiversity as well as
being very expensive to control.
To date, UK policy obligations in relation to peatlands have had a limited impact
(Reed et al. 2010). There is a clear choice to be made: business as usual,
leaving the majority of peatlands to deteriorate, or concerted action to protect
and restore peatlands.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
65
Business as usual Peatland restoration management
Climate change
mitigation
Signicant greenhouse gas emissions
from currently damaged peatlands.
A loss of 5% of UK peatland carbon
equates to the total annual UK
greenhouse gas emissions.
Safeguarding the biggest UK terrestrial carbon store.
Key opportunity to deliver greenhouse gas emissions
savings from damaged bogs by restoration.
Potential to contribute to UK national climate change
targets under Kyoto Protocol, Land use, land-use
change and forestry (LULUCF).
Climate change
adaptation
Loss of resilience for peatland
function, habitats and species.
Potential exacerbated ood impact
and wildres with associated costs.
Reduced vulnerability to changing climate and extreme
weather events with reduction in further peatland
degradation and associated impacts water and carbon.
Maintaining important peatland biodiversity and helping
species/habitats to adapt to changing climate.
Water quality Increased water quality deterioration.
Failing of ‘good ecological status’
and Water Framework Directive
requirements.
Anticipated need for new water
treatment can be very costly.
Improved condition of catchments with water quality
problems.
Quick reduction of sediment loads with benets for
sheries and reservoir storage.
Decrease in water colour and treatment costs.
Biodiversity Further decline in condition and loss
of important peatland habitat and
species of national and international
conservation importance.
Protected areas remain largely in
unfavourable condition.
Reduced connectivity between
surviving peatland habitat units –
making species more vulnerable to
local extinction.
Peatland habitats and typical species brought into
favourable condition, within protected areas and in the
wider countryside.
Deliver international obligations and agreements for
peatland conservation and restoration (Ramsar, EC
Habitats Directive).
Reaching EU, UK and country specic biodiversity
targets.
Connectivity of peatland ecological networks
increased.
Sporting Salmon breeding habitats affected
through sedimentation.
Gullies and erosion leading to
potential reduction in quality of habitat
for grouse on deep peat.
Improved habitat condition for game populations on
deep peat and increased mosaic of habitats in upland
areas.
Recreation Recreation opportunities affected
by wildre risk, erosion and loss of
wildlife.
Enhanced landscape and wildlife experience.
Historic
environment
Loss of important relics and palaeo-
environmental information.
Preservation of historic environment and palaeo-
archive including important information about past
climate change impacts.
The stark choice: effects of business as usual or active restoration management
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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6.1 Business as usual
With the majority of peatlands in a damaged state, simply leaving them alone
could create further liabilities as they deteriorate. Damaged peatlands are rarely
stable. Rather, they undergo ongoing degradation, as drains erode and form
deep gullies, and vegetation composition changes from blanket bog vegetation
to dwarf shrub heath, due to lower water tables or associated management.
Increases in heather, grasses and trees can cause yet more peat drying and
degradation. High livestock densities and inappropriate burning or wildres can
make a bad situation worse, triggering further erosion and the eventual creation
of bare peat areas. Drained peatlands also impact on the hydrology and
biodiversity of adjacent peatland causing further deterioration.
6.2 Conservation and restoration
Safeguarding the carbon store of peatlands is both straight-forward and low cost
(Parish et al. 2008; Joosten 2011). Conserving our best peatlands and avoiding
further damage to them is an important priority that requires continued action,
but with the majority of peatlands in a damaged state we must also direct our
efforts at restoration.
Eroding peat with deep gully formation in the North Pennines © North Pennines AONB Partnership
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
67
Achim Steiner, the United Nations Environment Programme Director, observed
“restoration of peatlands is a low hanging fruit, and among the most cost-
effective options for mitigating climate change”. Restoration with simple dams,
for example, often made from peat on-site, is sufcient to reduce drainage, raise
water tables and quickly conserve the carbon store, even re-instating carbon
sequestration by re-starting peat accumulation.
A stitch in time saves nine
As sites deteriorate, restoration becomes more complicated and expensive.
Highly degraded aerated peat is difcult to re-wet. Early action is therefore
far more effective. Severely damaged bogs, with bare peat, require both
drainage blocking to raise the water level and re-vegetation of bare peat. Such
degraded surfaces are inherently difcult to deal with as the peat must rst
be stabilised and then re-vegetated with seed from brash, with plug plants or
through Sphagnum propagation (Lunt et al. 2010). Re-vegetation must be done
in conjunction with action to re-wet the peat, as otherwise the peatland will
continue to lose carbon. Tackling the issue of adverse livestock numbers is a
more complicated issue requiring policy intervention through agri-environment
schemes, for example, but is nevertheless essential.
UK expertise in peatland restoration
The UK is world leading in peatland restoration. Information on over 120 UK
peatland projects was collated in the UK Peat Compendium
(see www.peatlands.org.uk).
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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6.2.1 Success of peatland restoration
Peatland restoration can vary from simple grip blocking to major engineering.
In partially damaged peatlands, short-term measures such as changing
livestock numbers and controlling burning management as well as ditch
blocking can be successful in recovering peat forming mosses within a few
years. On more degraded peatland, especially those with very low water tables
and bare peat, peatland restoration is slower. Stabilisation of the peat surface
can be achieved in around 5 years, however, full hydrological restoration may
take 20-50 years: a challenge given typical funding timescales.
There is clear evidence that re-wetting of peats by drain blocking can be
effective in raising water tables and promoting recovery of bog vegetation,
providing it is done effectively. Grip blocking has been shown to reduce the
loss of particulate organic carbon and also appears to reduce dissolved organic
carbon, although there may be short-term increases (Labadz et al. 2010; Wilson
et al. 2011b). It can also reduce the peak of stream-ow downstream, following
rain (Wilson et al. 2010). A range of vegetation management practices have
been deployed to restore peatlands including restriction of grazing (particularly
in association with re-vegetation of bare areas) and removal of scrub and trees.
In the Flow Country, for example, average Sphagnum cover increased from
15% to 25% within 6 years after tree removal (Stephen et al. 2011). In extremely
damaged sites, seeding bare peat with a nurse crop of grasses, sometimes with
lime, fertiliser and heather brash, allows for rapid re-vegetation and stabilisation
of bare peat. Although difcult, re-vegetation has been shown to stop erosion
and associated particulate organic carbon loss within 3-5 years (Evans et al.
2009). Once the peat is stabilised, Sphagnum re-introduction can be used to
help restore hydrological function and to re-start carbon sequestration (peat
accumulation). This is a commonly used technique in Canadian peat workings
and is being trialled currently in the Peak District and the Yorkshire Dales
National Parks.
Restoration at Kinder Edge © Moors for the Future
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
Restoration at windfarm site © Scottish Power Renewables
Grip re-proling © North Pennines AONB Partnership
Restoration at Blackpitts © Exmoor National Park Authority
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
70
6.2.2 Partnership as key to success
Peatland restoration has wide benets across a range of social, environmental
and economic agendas. While peatland restoration was once primarily aimed
at conserving and enhancing biodiversity, the wider benets of restoration for
other ecosystem services has led to broad partnerships across a range of
sectors. The Yorkshire Peat Partnership, for example, encompasses moorland
managers, Yorkshire Wildlife Trust, two National Park Authorities, Nidderdale
Area of Outstanding Natural Beauty, Natural England, Environment Agency,
National Trust and Yorkshire Water. Other good examples of partnerships are
the North Pennines AONB Partnership Peatscapes project, Moors for the Future
Partnership in the Peak District, the peatland partnerships in the Flow Country
of northern Scotland, the Mires-on-the-Moors project in Exmoor and Dartmoor,
the Sustainable Catchment Management Programme (SCaMP) project as well
as the Pumlumon, Migneint and Lake Vyrnwy projects in Wales. These involve
local land managers, local authorities and government agencies, NGOs such as
the RSPB, the National Trust and the Wildlife Trusts and industry such as water
companies.
Within these partnerships, different areas of public policy and business interests
can be addressed in a way which engages communities and operates across
whole peatland units, at a landscape scale. Diverse topics such as climate
change, game management, wildre reduction, wildlife conservation, obligations
under the Water Framework Directive and Drinking Water Regulations are
all wrapped into a single project. Large partnerships can also generate an
economy of scale and allow an accumulation of skills and capacity to aid
peatland restoration on individual land holdings that would otherwise nd it
difcult to achieve results on their own.
Partnerships make restoration happen © Mark Reed
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
71
Figure 13 Illustrative GHG mitigation costs and abatement potential (Moxey 2011)
6.3 Peatland restoration: a good investment
In recent studies, stakeholders valued carbon storage next to water regulation
and biodiversity conservation as the most important ecosystem service of
blanket bogs (Bonn et al. 2010; Christie et al. 2011; UKNEA 2011).
Peatland degradation reduces these services. The costs of this degradation
have yet to be fully quantied but are likely to be signicant (drinking water
treatment costs to tackle water colour are a good example) and more costly
than peatland maintenance and restoration. A recent ecosystem services
valuation estimated that blanket bogs in terms of climate regulation and other
services are worth £226 million per year to the UK economy (Christie et al.
2011).
Restoring peatlands can be cost-effective in relation to the market price of
carbon (Natural England 2010). Moxey (2011) compared the cost of peatland
restoration with other carbon abatement measures in the UK climate change
programme. Although some mitigation measures, such as improved fertiliser
usage in agriculture or domestic air source heat pumps for renewable heat,
may be implemented at no cost or even negative cost, £6 to £13/tonne CO2e for
drain blocking in peatlands compares favourably with a range of other mitigation
measures such as anaerobic digestion (£1-24/tonne CO2e), afforestation
sequestration (£0-41/tonne CO2e) and renewable biomass or biogas heat
generation (£18 and £56/tonne CO2e). Peatlands have an estimated abatement
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
72
Table 2 Example emission factors relative to emissions from 1ha degraded peatland (precaution-
ary emissions gure used for a gripped and drained peatland, see Figure 7)
*derived from Defra/DECC (2010)
Activity Example Annual emissions
1 ha damaged peatland
(drained, gripped)
2.6 t CO2e
9489 km Executive petrol car* Just under average UK annual car
mileage 2.6 t CO2e
2653 km articulated lorry* Two lorry trips from Lands End to John
O’Groats 2.6 t CO2e
4770 kWh Electricity
consumption*
Average energy consumption of a UK
household 2.6 t CO2e
potential of around 2.2 million tonnes CO2e per year, based on the 845,000 ha
of peatland to be restored under the UK Blanket Bog HAP and a mid estimate of
2.6 tonnes CO2e per ha per year saving (Figure 13, Table 2, for more detail see
Moxey 2011).
Restoration is also a good investment for water quality regulation. Models
developed by United Utilities and Yorkshire Water predict that an increase of
one Hazen (water colour unit) per megalitre per day of water treated will result
in an increase in treatment costs of between 10p to 20p. When modications
to a works are required or new pipes need to be laid costs start to become
increasingly signicant. A typical magnetic ion-exchange (MIEX) process
added on to a 10 megalitre per day conventional three stage water treatment
works may cost between £5 and £7 million to construct. Naturally, an additional
process would only be installed if all other more cost effective solutions have
been exhausted. In addition to the initial capital cost, MIEX is an energy
intensive solution that greatly contributes to the operational cost and carbon
footprint of the treatment process (Kate Snow, Andrew Walker, pers. comm.).
The level of benets that peatland management can bring will of course vary
from site to site, dependent on individual site conditions (level of degradation in
particular) and the value of the various services a peatland generates. Valuing
services is not straight-forward, with better estimates currently available for
carbon than for water or wildlife conservation. Further work to improve the
available cost-benet information would help guide land management decisions
and ensure better funding for sustainable peatland management by illuminating
the short and long-term economic benets of ecosystems services secured.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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7. SECURING THE FUTURE OF UK PEATLANDS
“Looking after our peatbogs goes hand in hand with good game management,
and repairing damage enhances the environment we rely upon for our livelihoods.”
Lindsay Waddell, Chairman, National Gamekeepers Organisation
“Peatland restoration in Wales is beginning to achieve real benets for biodiversity
and carbon - and increasingly on a landscape scale. However, long-term funding
support is needed to expand this work from its initially modest beginnings into
an ambitious national peatland restoration programme that reects the biodiversity
and wider ecosystem service value of these fantastic places.”
Peter Jones, Peatlands Ecologist Countryside Council for Wales
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Peatland restoration makes sense. Securing the benets we
derive from peatlands requires an urgent step-change in action to
redress past damage. A speedy response to protect and restore
our peatlands under a changing climate is challenging, but will be
more costly with delay.
This Inquiry calls for the multiple benets of peatlands to be understood and
appreciated. Our vision is for the UK’s peatlands to be functioning to their full
natural potential. There should be no further loss of near-natural peatlands in
the UK and all recoverable peatlands should be restored to a peat forming state,
resilient to climate change and with long-term safeguards. Our four-pronged
peatland strategy comprises:
Conserving peatlands in good condition, through management that
maintains a favourable state, and preventing further damage to healthy
peatlands (even the best protected peatland sites have suffered, with
less than 50% in a favourable condition, so the rst priority must be to
prevent any further deterioration).
Restoring partially damaged peatlands through land-use changes
and active habitat management to return them to a peat forming state
with typical peatland vegetation and animal species (including blocking
drainage ditches, altering livestock numbers or adjusting burning
management).
Intervening to repair severely damaged peatlands through major
operations, such as woodland removal, gully blocking and re-vegetating
bare peat.
Communicating the contribution peatlands make to meeting
environmental, economic and social goals – critically, to help combat
climate change and to halt the loss of biodiversity.
The management and restoration of the UK’s peatlands is an ambitious goal,
with best estimates of 2.3 million ha of blanket and raised bog, of which
around 1.8 million ha is damaged in some way. By creating a better framework
to integrate public and business policies, and by putting the right funding
mechanisms in place, we should be able to secure a much better future for our
peatlands by 2050. A positive interim target would be to work towards having
1 million ha of peatlands in good condition or under restoration management
Restoration of bare peat on Black Hill in the Peak District, 2006 and 2009 © Moors for the Future Partnership
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
75
by 2020 – a timescale consistent with UK and international biodiversity
objectives – as well as commitments to tackle global climate change.
Signicant gains could be made for biodiversity if this goal is achieved.
Securing 1 million ha of peatland under restoration management would meet
the UK Biodiversity Action Plan targets for blanket and raised bog restoration
(845,000ha) and could bring all designated sites into favourable or recovering
state. In terms of greenhouse gas benets, emissions savings factors to be
applied for reporting peatland rewetting are currently being developed at an
international level by the IPCC, but taking a conservative estimate could mean
savings of 2.5 million tonnes CO2e per year (assuming 2.5 tonnes CO2e savings
per ha per year, Figure 7 ). This equates to 1% of the annual greenhouse gas
reductions which need to be made from now to reach the UK climate change
target for 2027.
The total costs of meeting this target would be in the order of £240 - £690 million
for restoration. Spread over several years this is not a high cost considering
the benets. The total is only a fraction of the current annual budget for agri-
environment schemes, itself a minor component of government support for
agriculture. There is also the potential to access climate change budgets, and to
leverage private investment, including carbon markets.
To achieve this vision requires a strong public policy response, focussed around
three main sets of actions:
a. Introducing a UK and devolved government policy framework to protect
and maintain existing peatlands and ensure restoration of damaged areas.
Peatland policy objectives and delivery should be ‘joined-up’ across climate
change, biodiversity, water, heritage, development and access legislation.
b. Ensuring the necessary funding is in place to protect and restore the UK’s
peatlands. This requires continued use of the key funding streams, such as
the EU Common Agriculture Policy (CAP), and maximising any additional
opportunities through forthcoming reform. Other funds should be sought
through the EU Environment – LIFE+ Programme, with additional core
government funding alongside the development of business investment in
ecosystem services.
c. Coordinating action to encourage partnerships to secure an effective
evidence base, with monitoring and reporting on progress, along with
knowledge exchange, education and advice.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
76
7.1 Policy
7.1.1 Current approach
In the UK and devolved administrations, there is no overarching peatland policy
or strategy with clear objectives towards delivering functioning peatlands (Reed
et al. 2010).
Several international agreements on biodiversity, climate change and wetlands
have emphasised the need for peatlands to be included in national governance
mechanisms, policies, plans and investment strategies (see Table 3).
The urgency of action required is underlined by challenging targets for
biodiversity and climate change. The EU Biodiversity Strategy seeks to halt
the loss and degradation of ecosystems by 2020 (European Commission
2011), whilst the UK 2020 climate change target is to reduce greenhouse gas
emissions from 1990 levels by at least 34% (42% under the stronger Scottish
targets).
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Detailed plans Requirements References
UN
Convention
on Biological
Diversity
Strategic Plan for 2011-2020
and Aichi Targets.
EU Biodiversity Strategy to
2020
Conservation and restoration of
peatlands, highlighting their role in
mitigating and adapting to climate
change
Halt loss of biodiversity and
degradation of ecosystems by 2020,
and restoring them
100% more Habitat Assessments for
SACs show improved conservation
status
Nagoya, Japan COP10. Decision X/2 and
X/33
www.cbd.int/decision/cop/?id=12268
http://ec.europa.eu/environment/nature/
biodiversity/comm2006/pdf/2020/1_EN_
ACT_part1_v7%5b1%5d.pdf
UN
Framework
Convention
on Climate
Change
Kyoto Protocol and LULUCF Protect and enhance carbon
reservoirs
Account for losses/gains from
peatlands
Kyoto Protocol Article 2, 1 (a)(ii)
http://unfccc.int/kyoto_protocol/items/2830.
php
Ramsar
Convention
Strategic Plan 2009-2015
and Global Action Plan for
Peatlands
Establish and manage a network of
protected sites
Encourage wise use and recognition
of ecosystem service benets
COP 10 Resolution X.1
www.ramsar.org/cda/en/ramsar-home/main/
ramsar/1_4000_0__
EU Habitats
Directive
Blanket Bog Raised Bog and
Fens - listed habitats.
Classify protected sites and ensure
favourable status of peatland habitats
across their natural range, including
typical species
Council Directive 92/43/EEC (Annex 1,
71 Sphagnum Acid Bogs)
http://ec.europa.eu/environment/nature/
legislation/habitatsdirective/index_en.htm
EU Water
Framework
Directive
Horizontal Guidance on
Wetlands
Prevent deterioration, protect and
enhance aquatic ecosystems. Delivery
through River Basin Management
Plans
Peatlands included as ecosystems
which inuence water quality or
quantity as well as those dependent
on groundwater
Council Directive 2000/60/EC
http://eur-lex.europa.eu/LexUriServ/
LexUriServ.do?uri=CELEX:32000L0060:E
N:HTML
www.uicnmed.org/web2007/
cdow/conten/5/pdf/5_1_2/
WetlandsHorizontalGuidance/Wetland-nal.
pdf
Table 3 Key international commitments recognising peatlands
The UK and devolved governments have a range of policy instruments that
could be directed at protecting and restoring peatlands (see Table 4), but
there is limited information available on the contribution these initiatives make
(Keenleyside & Moxey 2010).
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
78
Detailed plans Requirements References
UN
Convention
on Biological
Diversity
Strategic Plan for 2011-2020
and Aichi Targets.
EU Biodiversity Strategy to
2020
Conservation and restoration of
peatlands, highlighting their role in
mitigating and adapting to climate
change
Halt loss of biodiversity and
degradation of ecosystems by 2020,
and restoring them
100% more Habitat Assessments for
SACs show improved conservation
status
Nagoya, Japan COP10. Decision X/2 and
X/33
www.cbd.int/decision/cop/?id=12268
http://ec.europa.eu/environment/nature/
biodiversity/comm2006/pdf/2020/1_EN_
ACT_part1_v7%5b1%5d.pdf
UN
Framework
Convention
on Climate
Change
Kyoto Protocol and LULUCF Protect and enhance carbon
reservoirs
Account for losses/gains from
peatlands
Kyoto Protocol Article 2, 1 (a)(ii)
http://unfccc.int/kyoto_protocol/items/2830.
php
Ramsar
Convention
Strategic Plan 2009-2015
and Global Action Plan for
Peatlands
Establish and manage a network of
protected sites
Encourage wise use and recognition
of ecosystem service benets
COP 10 Resolution X.1
www.ramsar.org/cda/en/ramsar-home/main/
ramsar/1_4000_0__
EU Habitats
Directive
Blanket Bog Raised Bog and
Fens - listed habitats.
Classify protected sites and ensure
favourable status of peatland habitats
across their natural range, including
typical species
Council Directive 92/43/EEC (Annex 1,
71 Sphagnum Acid Bogs)
http://ec.europa.eu/environment/nature/
legislation/habitatsdirective/index_en.htm
EU Water
Framework
Directive
Horizontal Guidance on
Wetlands
Prevent deterioration, protect and
enhance aquatic ecosystems. Delivery
through River Basin Management
Plans
Peatlands included as ecosystems
which inuence water quality or
quantity as well as those dependent
on groundwater
Council Directive 2000/60/EC
http://eur-lex.europa.eu/LexUriServ/
LexUriServ.do?uri=CELEX:32000L0060:E
N:HTML
www.uicnmed.org/web2007/
cdow/conten/5/pdf/5_1_2/
WetlandsHorizontalGuidance/Wetland-nal.
pdf
Category Type Peatland Examples
Direct State Control Public ownership of land. Areas managed
by public bodies
Peatlands within the Public forest estate,
managed by Forestry Commission Peatland
managed by e.g. Scottish Water/NI Water
Small areas of peatlands owned and
managed by local authorities
Classic Regulation and Advice
Prohibited activities, licences/permits,
planning zones, delivery of conservation
objectives
Minerals controls on peat extraction
Renewable energy policy SSSI, SPA,
SAC legislation The UK Forestry Standard
Heather and Grass burning code Deer
Control Schemes
Financial Instruments Grants, subsidies, tax incentives, user fees,
taxes, external funds eg EU LIFE +
CAP agri-environment and forestry
measures for peatlands, land management
payments e.g. in SSSIs
Capacity Building Skills training, capital grants, infrastructure
funding None at present
Information Provision Leaets, websites, research and advisory
services
Peatland research under Scottish
Government Main Research Provider
contracts or Farming for a Better Climate
programme, Defra Peat Partnership
Creating New Markets /
Voluntary Payment Schemes
Payments for ecosystem services, voluntary
schemes, corporate social responsibility
schemes
None at present, although research work
under way on Payments for Ecosystem
Services through Defra
Table 4 Categories of policy instruments
In recent decades, peatland policy across the UK has focussed on securing
networks of protected sites. This approach has largely been successful in
preventing new developments from adversely affecting designated sites.
Inappropriate windfarm development proposals on designated sites have been
resisted in parts of the UK where government planning policy acknowledges
that ambitious renewable targets can be met without compromising wildlife
site protection (Scottish Government 2011). UK site protection policy reects
international obligations to go beyond protection and includes measures to
promote restoration of damaged peatland habitat. This has, however, been
hampered by a lack of core funding and insufcient payment under agri-
environment schemes and other land management incentives.
Most of the UK’s peatland, however, is not designated. Outside protected
areas, peatlands can be targeted by developers in the belief that these are not
considered to be environmentally important. Peatland restoration is also given
lower priority in non-designated areas under some agri-environment measures.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
79
Drain blocking at Lake Vyrnwy using heather bale and peat dams © LIFE Active Blanket
Bogs in Wales
Removal of self seeded Sitka spruce at Lake Vyrnwy © LIFE Active Blanket Bogs in Wales
Securing peatland habitats at a favourable conservation status in their natural
range to avoid reduction in area and maintain typical species, is an obligation
under the EC Habitats Directive. Adapting to climate change also requires larger
peatland units than the currently often fragmented habitat, and for the habitat
to be in good condition across its full hydrological (or landscape) area (see also
Lawton et al. 2010). Forestry policy is one area, which has embraced the need
to protect functioning peatlands wherever they occur by discouraging planting of
trees on deep peat, whether in protected areas or not (Forestry Commission in
press).
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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7.1.2 A revised policy framework
A strong national steer at UK and individual country level could help muster the
considerable peatland expertise and potential resources across the public and
private sectors to achieve the scale and urgency of action required.
The Inquiry has identied an urgent call for a high level government
commitment to conserve and restore peatland in response to the recognised
benets. A consistent message throughout the Inquiry was the need for
government sectors (e.g. environment, agriculture, climate change, water,
planning, culture) working to this shared objective rather than pursuing each
ecosystem service in isolation. Strategic goals and monitoring of progress under
different policy instruments would allow progress to be better accounted for and
trigger more decisive and concrete policy action.
Evidence gathered from stakeholders pointed to the need for integrated
policies across different sectors, effective implementation of existing
policy and strengthened policy in key areas:
Biodiversity Action Plan objectives and targets identied at UK and devolved
administration levels supports effort at the local Biodiversity Action Plan level,
provides positive feedback and a framework to monitor progress towards
national and international targets. Clearly identifying funds and peatland action
in this process will help coordinate effort across the public and private sector
and extend peatland conservation and restoration beyond designated sites.
The CAP is a major funding stream and reform of the CAP after 2013 is
anticipated to enhance its role in helping to mitigate and adapt to climate
change, combat biodiversity loss and improve water quality. Construction of the
post 2013 agri-environment schemes in each of the devolved administrations is
one of the most important ways in which public policy can be aligned to manage
and restore peatlands. Rural development programmes (funded through Pillar
II of the CAP) are critical in this reAppropriate agri-environment and forestry
measures need to be made available for the full range of peatland restoration
and management requirements. Monitoring of progress and effectiveness of
these measures in relation to peatlands should be established by the country
administrations.
Biodiversity
Common
Agriculture
Policy
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Delivering water quality and ood management obligations under the EU
Drinking Water, Water Framework and Flood Risk Management Directives
(Council Directive 98/83/EC, Directive 2000/60/EC and Directive 2007/60/
EC respectively) are powerful drivers to encourage peatland restoration.
Sustainability duties on the water industry support peatland restoration as a
cost effective alternative or compliment to water treatment. UK Government,
devolved administrations and the regulators, should highlight these duties
in relation to peatlands to promote further investment across the UK water
companies.
The EU Water Framework Directive embraces all peatlands, but UK guidance
is needed to explain the relevance of blanket and raised bogs to complement
the work on wetlands produced by the Ramsar Convention (Trepel 2004). River
Basin Management Plans present a good opportunity to conserve and restore
peatlands at a catchment scale, but also need to recognise that many peatlands
lie across catchments.
The important role of peatlands in mitigating and adapting to climate change
is recognised under international climate change agreements. The UK has
the potential to showcase its signicant peatland restoration projects at an
international level and to use these to help inform policy through monitoring and
research. Focussed action and investment in peatland restoration provides a
cost-effective approach to reduce carbon emissions that would sit comfortably
alongside other measures.
Greenhouse gas accounting –The second Kyoto Protocol commitment phase
from 2013 will potentially allow accounting of a new activity ‘peatland rewetting
and conservation’ (see Joosten 2011 for full details). Practical methodologies
and user-friendly guidance for reporting and accounting for the most signicant
sources of peatland emissions are available at international level and need to
be developed at the UK level.
Adaptation policies - The need to restore damaged peatlands in order to build
resilience and avoid unnecessary loss of biodiversity and ecosystem services
should be highlighted in UK and devolved government statutory frameworks
and plans for adaptation. The role of peatlands in helping communities adapt to
increased ood risk should also be recognised.
Climate Change
Water
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Planning policy can play a key role in conserving and restoring peatlands
by guiding development away from important peat areas with a presumption
against development on peatlands. The Forestry Commission presumption
against new woodland planting on deep peat habitat (Forestry Commission in
press) should be considered by statutory planning authorities for other forms of
development.
Local planning authorities urgently need to be guided not to permit further
peat extraction development on new or existing sites (as in the draft National
Planning Policy Framework for England, DCLG 2011) and to ensure proper
peatland restoration on extraction areas.
Planning tools such as the Scottish Government’s windfarm and peatlands
carbon calculator (Scottish Government 2011) should be considered for other
forms of development on peatlands.
Authorities should also be encouraged to map peatlands at a catchment level
to guide partnership, identify restoration opportunities and reduce planning
conicts. Opportunities for planning gains (community infrastructure levies,
habitat banking) could provide mechanisms to support peatland restoration.
A number of public bodies, including the Forestry Commission and the Ministry
of Defence, manage important peatland areas. Opportunities to help deliver
functioning peatland habitat should be identied strategically with investment
targeted at delivering restoration.
Whilst natural heritage is protected under biodiversity policy and cultural
heritage under protection of monuments policy, a policy gap has been identied
in which the valuable archive of environmental information and archaeology
preserved in the peat itself is not protected under public policy. The protection
of geological sites under, for example the Countryside and Rights Of Way Act
2000 in England, as Geological Conservation Review sites could be extended
to apply to peat, with a strong direction to protect long time series records or
geographically isolated peat archives. Management activities to protect these
records should also be implemented. In most cases the best approach would be
to restore the peatland through re-wetting.
Management of
state land and
role of statutory
undertakers
Planning
Heritage
conservation
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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a. Key approaches for a policy framework
We need to muster the considerable peatland expertise and potential resources
across the public and private sectors to achieve the scale and urgency of action
required, recognising the challenges of the current economic climate.
a1. Clear government signals need to empower public bodies, the private
sector, NGO’s and communities to maintain and restore peatlands.
Establish a UK wide, coordinated, funded peatland restoration delivery
programme with agreed areas, targets and timescales, reecting
international commitments on peatlands.
a2. Coordination and cooperation across government sectors and agencies
would help deliver peatland biodiversity objectives and secure ecosystem
benets.
Recognise the important role of peatlands under all relevant public
body duties e.g. climate change mitigation and adaptation, biodiversity
conservation and water regulation.
Take forward opportunities for delivery of landscape and cross-
catchment scale projects with cooperation across different
administrative boundaries.
Establish a high-level peatland group to facilitate cross agency
coordination and to report on progress against peatland objectives.
a3. Develop an ecosystem-based approach to peatland policy
Adopt an ecosystem-based approach with healthy functioning peatland
habitat as the shared goal, rather than simply maximising individual
services from peatlands.
a4. Have better collaboration across public bodies, business, NGOs, and
communities with stronger connections between end-beneciaries and
those delivering services on peatlands.
Support collaborative working at the site level to deliver peatland
management and restoration, showcasing good examples nationally
and internationally.
Explore mechanisms to encourage better connection between peatland
managers and beneciaries of the ecosystem services.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
84
Flow Country, RSPB Forsinard Reserve © Norman Russell
7.2 Funding
It is only recently that the benets to society of fully functioning peatlands
have been realised. Indeed, for centuries peatlands have been considered
as wastelands to be ‘improved’ with little appreciation of the costs of peatland
degradation, so much so that it was funded at public expense by subsidies
and tax incentives for forestry and agriculture. Subsidies for activities which
directly led to peatlands being damaged have now been largely removed. But
an equivalent level of investment to restore the damage is not yet in place, and
peatlands continue to deteriorate even within protected sites.
There is a disconnect between the costs experienced by society in terms of
damaging impacts to water quality, loss of biodiversity and carbon emissions
from degraded peatlands and the lack of support given to the management of
peatlands. Peatlands can be seen as a repository of largely un-priced public
goods of major national importance (Hubacek et al. 2009). Policy intervention is
required to address these market imperfections and failures, with the provision
of benets better reected through payments for ecosystem services to those
who manage peatlands. This is especially important given that peatlands mainly
exist in rural and often remote areas where communities face challenges of
lower employment and economic opportunities. With no current mechanism to
reward those who maintain functioning peatlands there is no perceived benet.
Public policy needs to develop effective funding mechanisms that ensure
peatlands are well managed and restored to ensure the full suite of ecosystem
services is maintained long into the future.
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
85
Discussing ditch blocking © North Pennines AONB Partnership
Restoration beside windfarm © Scottish Power Renewables
The Inquiry examined many different funding streams that, if properly integrated
together with core government funding, could deliver peatland restoration and
management without substantially increasing cost to the tax-payer:
The UK’s devolved CAP Rural Development programmes and agri-environment/
forestry measures are already signicantly contributing to the management
and restoration of UK peatlands. Within the four UK country programmes there
is a need for improved funds to better reect ecosystem service benets and
contribute to wider government objectives for biodiversity, water and carbon:
Ensure an appropriate range of payments across peatland
management activities at the right level of payment to incentivise initial
and ongoing management.
Explore opportunities to integrate private /public initiatives to fund
payment for ecosystem services as a means of helping ensure
payments reect the costs to the land manager of peatland restoration
and management.
Promotion of whole farm conservation and management encompassing
payment for maintaining and restoring peatlands. A coordinated
approach to support collaborative payment applications for peatland
management at a landscape scale across multiple land holdings.
Improved monitoring of environmental objectives under the payment
schemes to allow proper assessment of effectiveness and progress.
The food and drink industry in the remote rural areas of the UK where peatlands
exist often rely on a clean healthy natural environment as branding to promote
their products. In some cases industry are involved directly in helping restore
peatlands as part of their contribution to maintaining a healthy environment.
There are opportunities for companies and businesses to engage more with
those who manage the peatlands to nd out about the wildlife and other
features which can help brand the products. Businesses are also keen to
support environmental projects through their corporate social responsibility
activities, such as the donation of the Co-operative Foundation to the Moors
for the Future Partnership to regenerate Sphagnum on degraded peatlands.
With better information and understanding of the importance of peatlands, more
businesses could be willing to help.
CAP
Business
support
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
86
The planning system allows for agreements with developers to undertake
environmental management projects. The renewable energy industry has
already made signicant investment in restoring and maintaining peatland
habitats in areas around windfarm developmentsm but this need to be more
widely applied and better enforced. Several thousand hectares of peatland
are now under active management. For example, Scottish Power Renewables
has a multimillion pound investment programme that includes managing 8,150
ha of peatland as part of its Habitat Management Plan. By putting in place
scientic monitoring and sharing data with other stakeholders, where possible,
the industry can also help improve our understanding of the effectiveness of
peatland restoration (Scottish Renewables 2010).
Water companies are some of the largest peatland landowners in the UK.
Individual companies are already investing in peatland restoration to stabilise
and improve the hydrology of deep peat systems in drinking water catchments.
Repeating such investment during the next asset management programme
could deliver considerable benets. Furthermore, there is considerable research
work and survey that could be undertaken as part of these projects, which could
contribute to improving our understanding the effect of peatland management
on water quality. Similar opportunities for restoration and survey exist in the
public water sector. The UK public and private water industry as a whole could
benet from a coordinated approach to its research and information exchange.
There is potential for new funding for peatlands through private nancing
initiatives under carbon markets. In the short-term it should be possible to
provide standard information to support companies or trust fund holders who
wish to fund projects that deliver climate change and wider environmental/
biodiversity benets as a matter of corporate social responsibility (Rabinowitz
& d’Este-Hoare 2010), rather than seeking to offset carbon emissions or earn
tradable credits. In the longer term, it may be possible to access additional
funds, if peatland restoration projects were to become part of a programme that
could enable carbon credits to be traded on voluntary carbon markets. This will
require some form of peatland carbon code with rm standards, accreditation
and a national register to prevent double counting with the governments own
greenhouse gas reductions (Joosten 2011).
Developer
contributions
Water
Carbon
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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b. Key approaches for funding
There are opportunities to greatly improve the sharing of costs experienced by
society in terms of damaging impacts to water, loss of biodiversity and carbon
emissions and the support given to the management of peatlands. Put simply,
we want to vastly reduce these costs. Support towards this includes direct
government and business funding along with government action to facilitate
international funds, business and private investment for peatland management
and restoration.
b1. Improved funding through the CAP – both Pillar I direct payments and
Pillar II Rural Development Programmes (especially agri-environment and
forestry measures) for peatland management and restoration.
Improve the alignment of funds within the four UK country programmes
to the provision of benets for biodiversity, climate change and water.
Ensure appropriate payment levels and integration with private/public
funding initiatives to incentivise land managers and cover the costs of
providing public benets from peatlands.
b2. Use public and private resources in a coordinated way to support peatland
restoration and management.
Establish core government funding specically to support peatland
projects, and encourage public bodies and the business sector to work
jointly in funding peatland work.
b3. Development of new sources of funding for peatland conservation and
restoration.
Explore opportunities to support business-led carbon investment in
peatlands including developing a Peatland Carbon Code.
Support water company investment in upstream land management.
Explore other funding opportunities such as payment schemes for
ecosystem services, biodiversity offsets and habitat banking.
7.3 Coordinated action
The management and restoration of the UK’s peatlands is an ambitious but
achievable goal. With a better framework to integrate public policy and the right
combination of funding mechanisms in place, this goal could be realised within
a generation – a timescale required under international law and as part of the
UK’s commitment to tackle climate change. However, achieving this goal will
require focus and coordination.
The Commission of Inquiry identied the following areas as crucial:
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
88
Policies that affect peatlands extend across key sectors such as environment,
climate change and water management. National level partnerships involving all
relevant Government agencies and departments are required to conserve and
restore peatlands (Reed et al. 2010).
Developing programmes that achieve multiple objectives across government
policy areas will reduce costs. Spatial land use policy at a national level is
particularly useful in this regard in helping to resolve peatland conservation
with seemingly conicting policies, such as forestry expansion and renewable
energy development, as well as helping partnerships to work towards shared
objectives. Management zoning for varying peatland objectives, e.g. strict
nature reserve, recovery areas or sustainable management under different land
management objectives such as agriculture or grouse moor, can help balance
the different land use interests within a landscape.
Any investment should be based on sound evidence. Current knowledge shows
a clear overall benet for conserving and restoring peatlands but more work
is required to fully quantify the individual benets, particularly in relation to
climate change mitigation and water. Targeting research to inform policy and
investment decisions and monitoring the effectiveness of investment will allow
better targeting of investment and reporting of outcomes. A more coordinated
approach is required:
Key peatland policy research requirements, against which the academic
community can plan their study and knowledge exchange, should be
supported through initiatives such as CAMERAS (Coordinated
Agenda for Marine, Environment and Rural Affairs Science
www.camerasscotland.org), LWEC Programme (Living with
Environmental Change, www.lwec.org.uk) and UK Research Councils
thematic programmes.
To assess the future impact of restoration and management of
peatlands and allow for learning and adaptive management, a cohesive
network of intensively monitored demonstration sites is needed. There
are already a range of successful research collaborations between
restoration projects and universities across disciplines, such as the
Rural Economy and Land Use ‘Sustainable Uplands’ Project and
others. There are also several peatland research and observation
sites in the UK, such as the CEH carbon catchment sites, from
which important lessons can be learned. These need coordination to
synthesise information and facilitate learning.
Guidance for standardised monitoring of restoration projects is required
to assess success of restoration measures. Methods need to be
practical, low cost and maintenance, compatible across a range of sites
and conditions, and easy to conduct after little training. Monitoring must
become integral to restoration projects to assess effects of restoration.
Monitoring needs clear objectives, appropriate study design and
controls.
Finances for restoration monitoring, including before and after
treatment, need to be made available as an integral part of project
Coordination
and
partnerships
across policy
areas
Research and
evidence
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
89
budgets to assess the success of restoration and impact on biodiversity
and ecosystem services, as changes in peatland functioning following
restoration may take many years.
Long-term monitoring of peatland ecosystems in a range of conditions
is needed to help assess the impacts of climate change and the
effectiveness of resilience measures (Murphy et al. 2009). The
opportunity to involve peatland sites in targeted monitoring within
the Environmental Change Biodiversity Network (ECBN) should be
considered. In addition, continued support and collation of fragmented
peatland datasets should be provided to assess long-term change, e.g.
Countryside Survey, Environmental Change Network, UK Acid Waters
Monitoring Network.
While some questions can be answered through monitoring, others need
concerted primary research effort. Particular research gaps identied by the
Inquiry include:
The state of peatlands is not fully understood or mapped, and better
information is required on peat depth and carbon storage throughout
the UK.
Better information is needed to assess the contribution of peatlands
to national greenhouse gas uxes. Methods need to be developed to
measure, report and verify the contribution of peatlands to greenhouse
gas uxes in line with the conclusions of the United Nations Climate
Change conference in Cancun 2010. A full quantication of the UK’s
peatland greenhouse gas balance under different land management
and restoration scenarios is required. (A review by the Joint Nature
Conservancy Council has outlined a research programme which
would achieve this, and needs to be adopted and implemented by UK
research councils and agencies and funded by the EU, UK government
and industry).
Planning eldwork © Aletta Bonn
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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To address the need to halt rising trends of dissolved organic carbon,
further research is needed to assess the impact of land management,
such as burning, vegetation composition and restoration on the quality of
water derived from peatlands.
Better understanding and valuation is needed of the costs and benets of
peatland restoration on peatland ecosystems services and biodiversity.
There is also a need to account for the opportunity cost of not taking
action to conserve peatlands and the ecosystem services they provide.
More research is needed into how different restoration techniques,
change in vegetation cover or land-use affect run-off and contribute to
mitigating ood risk.
The lack of consistent methodologies in some areas of peatland research
needs to be addressed to allow for better evaluation and comparison of
studies. Examples include different approaches to measuring dissolved
organic carbon uxes from peatlands, or vague, inaccurate or missing
denitions of the peatland habitats used in different studies, eg. often
mixing upland heath and blanket bog.
Establishing a peatland ecosystem research focus within the LWEC programme
to foster focussed research on peatlands would be extremely useful. This should
include a strong engagement of practitioners and policy advisers within the
process of identifying, conducting and publishing research to increase relevance,
ownership and swift integration of results into practice.
There is a need for ongoing development and sharing good practice based on
scientic evidence. This evidence is, however, often not available in accessible
format to end users to inform practice on the ground or to justify public spending.
Ongoing synthesis of highly dynamic peatland research and active knowledge
exchange between knowledge users and providers are required.
This Inquiry has gathered available evidence to date and collated a consensus in
this report. The assessment shows that sufcient evidence is already available to
allow policy development to fully support peatland conservation and restoration,
in principle, to maintain essential ecosystem services and support important
biodiversity. Further quantication of the benets is required however to improve
delivery.
As a next step, a centralised authoritative information hub would benet policy
advisers, practitioners and researchers. A UK peatland hub could support
collaboration between research providers and stakeholders engaged in delivering
peatland restoration and sustainable management by providing:
A Peatland network: Coordinate and provide ongoing support for the
different peatland projects to share successes and to provide training on
peatland management to support land managers.
Development of a demonstration site network: Showcase cost effective
solutions for peatland restoration and management that will meet
government commitments towards climate, soil, water and biodiversity
goals.
Effective
knowledge
exchange
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
91
Training & Monitoring: Provide peatland ecology training among
researchers and land managers including monitoring guidance.
Support the collation and analysis of monitoring data to assess
impacts of restoration on biodiversity and ecosystem services.
Development and sharing of good practice based on scientic
evidence: synthesise and communicate peatland research to users in
accessible formats and thereby provide a stronger evidence-base for
policy and practice.
There are opportunities to engage people in survey and monitoring. Many
volunteers are already employed in monitoring for restoration projects. One
compelling idea is for a Big Peat Watch that could provide a far better estimate
of the carbon stored in UK’s peatlands by involving people to measure peat
depth across the UK. A scoping study, as part of the national peat depth
and carbon content project, is underway with Natural England and the North
Pennines AONB Partnership.
Local partnerships involving different agencies, local authorities and multiple
land owners/managers are required to conserve and restore peatlands across
whole peatland units (rather than conned to single owner/managers). This
brings water catchment and landscape scale benets. Successful partnerships
to conserve and restore peatlands include those where one organisation has
taken a lead, committing resources to drawing partners together and helping
to forge a shared agenda, often drawing in new resources from international
funds or the private sector.
Critical to these partnerships is engaging the land management community.
Most UK peatlands are owned and managed by private individuals and
companies, although there are also signicant state and civic society
interests. There is a collective expertise here that can be marshalled through
stakeholder groups such as Scotland’s Moorland Forum. Advice and guidance
to the land management community is important. There is a strong need to
provide peatland management guidance (a free web-based resource would
be particularly useful) and to share good practice in relation to survey and
monitoring, and simple, low cost peatland restoration techniques.
Monitoring in the Flow Country © Norman Russell Creative ways of engaging people © Peak District
National Park Authority
Monitoring
and engaging
people
Local
partnerships
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
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Peatlands have been described as having been the Cinderella of Britain’s
wildlife resource, badly treated and their importance poorly understood.
Addressing the gap between the real benets of peatlands and the public
knowledge of these is important if their future is to be secured. Public
engagement activities are already taking place through demonstration site visits
of restoration partnerships or through visitor centres by National Parks and civic
society organisations. Other opportunities include engaging school children
where imaginative and interactive climate change activities on peatlands,
such as the National Parks Moorland Indicators of Climate Change Initiative
(MICCI), lead by the Peak District National Park, or the Changing Environment
Landscape Lab programme of the North Pennines AONB Partnership have
been successfully deployed. These experiences should be shared and good
programmes replicated across the UK.
National media opportunities to engage interest in peatlands through outlets
such as the BBC should be pursued utilising the wide range of peatland
showcase sites in nature reserves and peatland partnerships. Coordinated
effort across NGOs and public bodies to collate the wildlife spectacles, people
engagement stories and heritage interests would help provide a valuable
resource to communicate the peatland benets through various media.
Students take to investing peatlands. Moorland Indicators of Climate Change Initiative (MICCI) © Peak District
National Park Authority
Communications
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c. Key approaches for coordinated action
c1. Establish nationally coordinated and funded peatland accounting.
Monitor the state of peatlands.
Report on progress towards biodiversity targets and delivery of
international and national objectives, greenhouse gas emissions
savings and other ecosystem service benets.
Assess the effectiveness and progress of policy measures – including
agri-environment measures.
c2. Provide support for a UK peatland hub for information and consensus
building, training and partnership working between scientists, policy
advisers, businesses and land managers.
Providing a one-stop shop for information.
Showcasing cost effective and exible solutions for peatland restoration
and management through demonstration sites.
Facilitating effective collaborations between policy, practice and
academic research.
c3. Encourage trans-disciplinary research on peatlands.
Provide solutions for effective peatland conservation/restoration.
Improve the evidence base for the services that peatlands provide and
the effects of restoration.
c4. Communicate the importance of peatlands, highlighting their benets to
society including market and non market values.
Build on the wealth of peatland projects and stories to provide the tools
for wider communication, engaging expertise to incorporate peatlands
more extensively in media and education.
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8. IUCN UK PEATLAND PROGRAMME:
NEXT STEPS
“We’ve always had a strong ecological case for investment in peatlands,
thanks to the work of the Peatland Programme we now have a compelling
economic case too.”
Jonathan Hughes, Director of Conservation, Scottish Wildlife Trust
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The Commission of Inquiry is one of the initiatives undertaken by the Peatland
Programme under its three year strategy 2009-2012. The Inquiry process and
the wider work has helped build important partnerships and demonstrated that
progress can be made through a coordinated effort across science policy and
practice.
The Peatland Programme has provided critical and previously missing capacity
to coordinate policy, practice and research. Maintaining the momentum of
the Peatland Programme after the initial 3-year privately funded period is an
important part of this vision.
A continued Peatland Programme will focus on:
UK Peatland Hub: Proposals for funding and managing a Hub are still to
be considered by the various partners and in the meantime the Peatland
Programme will facilitate further discussion and undertake some of the work of
the Hub.
Advisory Panel: The Inquiry process was supported by an informal UK
partnership of individuals from across the statutory agencies, voluntary bodies
and land managing interests. The Peatland Programme intends to facilitate
further meetings of this group and to engage with relevant devolved Country
initiatives with a view to identifying agreed peatland actions arising from the
Inquiry that could be implemented, with progress monitored and reported.
Stakeholder events and briengs: The Peatland Programme will organise a
series of stakeholder knowledge exchange events and produce a range of
briengs exploring in more detail key topics covered by the Inquiry. These will
include:
Carbon funding and national greenhouse gas accounting
Survey and monitoring methods on peatlands
Evaluation of ecosystem service benets and biodiversity
Land management advice
Conferences: The Peatland Programme has held two major annual conferences
with the next conference ‘Investing in Peatlands – Demonstrating Success’
planned for 26-28 June 2012 as joint symposium with the British Ecological
Society. The aim of these is to pull together and inform the wider peatland
policy, practice and research community.
Communications: The Peatland Programme will continue to gather media
resources and make these available through its website. This will help facilitate
the development a strategic approach to peatland communications across
Government and NGOs.
Restored blanket bog after ditch blocking © Exmoor National Park Authority
IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
9. CONCLUSION
“Science has shown that peatlands deliver important services to society.
We need to continue to understand more about their condition and resilience
whilst getting on with conserving and restoring them, so that we can ensure
the best for their long-term future.”
Tim Burt, Professor of Geography, Durham University
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Throughout the 18 month course of this Inquiry, it has been evident that there is
a large community of interested people and organisations willing to help deliver
the vision for peatlands – but needing the right signals and support. Greater
effort towards realising the immense value of peatland ecosystems in their
fully functioning condition offers so much in return, for all of us and for nature.
Conversely if we delay in pursuing a strong vision for peatlands then we impose
greater costs to society in future. We have identied some of the main hurdles
and barriers and set out clear approaches which could help deliver the urgently
needed action, building on the huge range of peatland expertise that exists in
the UK and abroad.
West Allenheads 2010 © Nick Mason, North Pennines AONB Partnership.
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108
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IUCN UK PeatlaNd Programme CommIssIoN of INqUIry oN PeatlaNds
109
“Peatland conservation is a prime example of a nature-based
solution to climate change but we urgently need to switch from
aspiration to action to secure the benets that peatlands provide.”
Julia Marton-Lefèvre, Director General,
International Union for the Conservation of Nature
The report and associated Commission of Inquiry material
can be downloaded from
www.iucn-uk-peatlandprogramme.org
The International Union for the Conservation of Nature
(IUCN) is a global organization, providing an inuential
and authoritative voice for nature conservation. The IUCN
UK Peatland Programme promotes peatland restoration
in the UK and advocates the multiple benets of peatlands
through partnerships, strong science, sound policy
and effective practice.
... The International Union for Conservation of Nature's commission of inquiry on peatlands (Bain et al., 2011) identifies peatlands as the largest terrestrial carbon store globally, which, while covering about 3 % of land area, stores more carbon than all other terrestrial vegetation in the world combined. Peatlands can also be important sources of drinking water, such as in the UK, where over 43 % of the population is supplied with water which originates from catchments with peatland areas (Ferretto et al., 2021;Xu et al., 2018). ...
... Peatland drainage causes subsidence and compression of the peat, reducing macro porosity and resulting in reduced water storage capacity (Liu et al., 2020). The aerobic zone created following drainage can turn peatlands into major sources of carbon dioxide (Bain et al., 2011). Channelisation of peatlands, potentially from urbanisation or mining, is associated with increased water discharges and runoff (Cowley et al., 2016). ...
... Such channelisation has been shown to reduce water storage (Cowley et al., 2018a) and result in increased fluvial carbon exports and emissions (Cowley et al., 2018b). Agricultural conversion of peatlands generally involves enhanced drainage or the lowering of the water table (Bain et al., 2011). "Managed burning" of peatlands has also been shown to increase carbon exports and decrease primary productivity (Worrall et al., 2010), with likely secondary consequences to hydrology. ...
... Peatlands are globally important for their ecosystem services. These include water filtration and flow regulation (Bain et al., 2011;Labadz et al., 2010), carbon storage (Page and Baird, 2016), and habitat provision for specialised flora and fauna (Mason et al., 2021;Page and Baird, 2016). Peat forming upland swamps in New South Wales (NSW), Australia, are a type of peatland that are located in the headwaters of upper catchments. ...
... There are many threats to peatlands, including drainage, mining, urbanization, agricultural conversion, burning, and anthropogenic climate change (Bain et al., 2011;IUCN, 2021;Kemter et al., 2021;Mason and Keith, 2016). As these threats impact peatland hydrology, there are risks associated with not meeting the water needs of peatland species. ...
... Blanket bog peatlands are important, yet in good condition rare, UK habitats (Wilkie and Mayhew, 2003) which store large amounts of carbon (Evans and Lindsay, 2010) and are home to many plants and birds (Littlewood et al., 2010). Globally, approximately 13 % of blanket bogs are contained in the UK upland areas (Bain et al., 2011). To improve the production of livestock, a number of British blanket bogs were historically drained (mainly for grazing) including considerable government financial incentives during the past century (Evans, 1998;Sansom, 1999;Britton et al., 2017;Alday et al., 2022). ...
... This semi-natural habitat is largely of anthropogenic origin, formed by centuries of deforestation, grazing and burning (Thompson et al., 1995). Moorlands nonetheless provide various ecosystem services: (i) they often overlie carbon-rich (peat) soils, a significant terrestrial carbon store with over 3.2 billion tonnes found in blanket bog alone (Bain et al., 2011); (ii) the uplands supply >70% of the UK's drinking water (Watts et al., 2001) and regulate downstream flow regimes (Gao et al., 2017;Robinson et al., 2013); and (iii) they are important for biodiversity, supporting habitats and species of conservation importance (Pearce-Higgins et al., 2009;Thompson et al., 1995) with large areas afforded protected area (PA) status (JNCC, 2022a(JNCC, , 2022b. UK moorland should therefore make a crucial contribution to mitigating the climate and nature emergencies. ...
Article
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In the UK uplands, prescribed burning of unenclosed heath, grass and blanket bog (‘moorland’) is used to support game shooting and grazing. Burning on moorland is contentious due to its impact on peat soils, hydrology and habitat condition. There is little information on spatial and temporal patterns of burning, the overlap with soil carbon and sensitive habitats and, importantly, whether these patterns are changing. This information is required to assess the sustainability of burning and the effectiveness of new legislation. We developed a method for semi‐automated detection of burning using satellite imagery – our best performing model has a balanced accuracy of 84.9%. We identified annual burn areas in Great Britain in five burning seasons from 2017/18 to 2021/22 of 8333 to 20 974 ha (average 15 250 ha year⁻¹). Annual extent in England in 2021/22 was 73% lower than the average of the four previous seasons. Burning was identified over carbon‐rich soils (mean 5150 ha or 34% by area of all burning annually) and on steep slopes – 915 ha across the five seasons (1.3%), contravening guidance. Burning (>1 ha) was recorded in 14% of UK protected areas (PAs) and, within these, the percentage area of moorland burned varied from 2 to 31%. In England in some years, the percentage area of moorland burned inside PAs was higher than outside, while this was not the case in Scotland. Burning in sensitive alpine habitats totalled 158 ha across the five seasons. The reduction in burned area in England in 2021/22 could relate to England‐specific legislation, introduced in May 2021, to prohibit burning on deep peat in PAs. This suggests that regulation can be effective. However, the continued overlap with sensitive features suggests that burning falls short of sustainable practices. Our method will enable repeatable re‐assessment of burning extents and overlap with ecosystem services.
... However, their small but persistent sink strength, which is affected both by climate and management [3], is of importance to many regions in relation to their carbon budgets. Ombrotrophic blanket peat bogs, of which a large proportion is found in the UK uplands [4], are important carbon stores and environmentally sensitive mire types [5], especially in relation to climate change [6]. ...
Preprint
Full-text available
Manual chamber-based carbon flux measurements are frequently used to capture terrestrial carbon cycle processes over vegetated areas. Light response curves, achieved by sequential shading, enable obtaining model parameters of light compensation points, maximum photosynthetic rates and dark respiration. However, light conditions in the field are often limited, especially in darker seasons and areas with frequent cloud and fog, which questions the robustness of model parameters. Artificial light therefore offers a crucial way to assess and address these potential limitations, especially recent advances in LED lights with improved wavelength spectra and intensity. However, previous LED lights were fixed on the chamber top, blocking out natural light, heavy and with a high power demand unsuitable for remote field deployment. Here we tested a handheld LED flashlight as a flexible, low power and low weight option. We investigated the wavelength spectrum and photosynthetic active radiation (PAR) output under controlled conditions and applied it under light limiting field conditions. Carbon uptake benefited from the increased PAR range without affecting chamber temperatures, and whilst there was overall good agreement for model parameters between with and without supplementary light, model fit was improved by the wider light range for situations with higher variability.
... These upland areas provide a range of important environmental services including moderation of downstream flood risk and a water source for 70% of the UK's population (Martin-Ortega et al., 2014). The widespread occurrence of peatland soils means the UK uplands are a particularly important carbon store (Bain et al., 2011;Chapman et al., 2009), storing an estimated 5100 Mt of carbon (Smith et al., 2007). ...
Article
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In the Scottish uplands, prescribed burning of moorland vegetation is widely practised either to boost gamebird numbers for recreational shooting or to improve livestock grazing. In recent years, this system of land management has become controversial due to concerns over the potential impacts on ecosystem services. However, there are limited data on the extent, distribution or frequency of burning and it is unclear whether there are long‐term trends in burning. Crucially, the extent of burning on peat soils is not well known. We used a time series of Landsat imagery covering 7750 km ² of moorland in Eastern Scotland to detect annual variation in area burnt from 1985 to 2022. Burnt areas were detected using annual changes in Normalised Burn Ratio. An accuracy evaluation conducted over eight sites covering 415 km ² using a combination of Google Earth imagery, and field studies suggested a user's accuracy of 90% and a producer's accuracy of 77%. We estimate an average annual mean area burnt of 61 km ² with large interannual variability and no significant change in area burnt over the 38‐year study period. We estimate that 32% of burning (19 km ² year ⁻¹ ) occurred on deep peat soils with no reduction in burning on deep peat after the revision of national guidelines (the Muirburn Code) in 2017 recommended ceasing this practice. We find that in Eastern Scotland there has been no significant change in moorland area burnt over the last four decades. The fractional area burnt that is on deep peat is a matter of management concern.
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This paper examines the critical importance of peatlands in climate regulation, biodiversity conservation, and the provision of essential ecosystem services, emphasizing the urgent need for their preservation and restoration. Although peatlands cover just 3% of global land, they store 30% of the world’s terrestrial carbon, making them vital for mitigating climate change. However, activities such as agriculture, forestry, and peat extraction have caused significant degradation, compromising their ecological integrity and climate functions. This review makes a unique contribution by applying a systems thinking approach to synthesize the interconnected technical, environmental, and socioeconomic dimensions of peatland management, an often underrepresented perspective in existing literature. By offering a holistic and integrative analysis, it identifies key leverage points for effective and sustainable conservation and restoration strategies. This paper also explores the European Union’s policy response, including the EU Restoration Law and sustainability initiatives aimed at peatland recovery. It highlights the shift from peat use in energy production to its application in horticulture, reflecting growing demand for sustainable alternatives and eco-friendly restoration practices across Europe. Furthermore, this review addresses the environmental consequences of peat extraction, such as increased greenhouse gas emissions and biodiversity lossand emphasizes the need for robust EU legislation aligned with climate neutrality and biodiversity enhancement goals. It concludes by advocating for comprehensive research and proactive, policy-driven measures to ensure the long-term protection and sustainable use of these vital ecosystems.
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Understanding hydrological processes operating on relatively intact blanket bogs provides a scientific basis for establishing achievable restoration targets for damaged sites. A GIS-based hydrological model, developed to assess restoration potential of Irish raised bogs, was adapted and applied to four relatively intact blanket bogs in Ireland. The Modified Flow Accumulation Capacity (MFAC) model utilised high-resolution topographic data to predict surface wetness, based on climatic conditions, contributing catchment and local surface slope. Modifications to MFAC parameters aimed to account for differences in hydrological processes between raised bogs and blanket bogs. Application of a climatic correction factor accounted for variations in effective rainfall between the four study sites, while monitoring of water table levels indicated a log-linear relationship between MFAC values and summer water table levels and range of water table fluctuations. Deviations from the observed relationship between MFAC and water table levels were associated with hydrological pressures, such as artificial drainage or the occurrence of subsurface macropores (peat pipes), which further lowered summer water tables. Despite being effective as a predictor of relative surface wetness, the relationship between MFAC and ecological variables such as Sphagnum spp. cover proved poor, pointing to the impact of past activities and damage caused by anthropogenic pressures. Findings demonstrated MFAC as an effective tool in predicting surface wetness within blanket bog-covered landscapes, thus proving useful to peatland practitioners in planning and prioritising areas for restoration. Supplementary Information The online version contains supplementary material available at 10.1007/s13157-023-01765-5.
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Lawton, J.H., Brotherton, P.N.M., Brown, V.K., Elphick, C., Fitter, A.H., Forshaw, J., Haddow, R.W., Hilborner, S., Leafe, R.N., Mace, G.M., Southgate, M.P., Sutherland, W.J., Tew, T.E., Varley, J. & Wynne, G.R. (2010) Making Space for Nature: a review of England’s wildlife sites and ecological networks. Report to Defra.
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We summarise the work of an interdisciplinary network set up to explore the impacts of climate change in the British Uplands. In this CR Special, the contributors present the state of knowledge and this introduction synthesises this knowledge and derives implications for decision makers. The Uplands are valued semi-natural habitats, providing ecosystem services that have historically been taken for granted. For example, peat soils, which are mostly found in the Uplands, contain around 50% of the terrestrial carbon in the UK. Land management continues to be a driver of ecosystem service delivery. Degraded and managed peatlands are subject to erosion and carbon loss with negative impacts on biodiversity, carbon storage and water quality. Climate change is already being experienced in British Uplands and is likely to exacerbate these pressures. Climate envelope models suggest as much as 50% of British Uplands and peatlands will be exposed to climate stress by the end of the 21st century under low and high emissions scenarios. However, process-based models of the response of organic soils to this climate stress do not give a consistent indication of what this will mean for soil carbon: results range from a very slight increase in uptake, through a clear decline, to a net carbon loss. Preserving existing peat stocks is an important climate mitigation strategy, even if new peat stops forming. Preserving upland vegetation cover is a key win-win management strategy that will reduce erosion and loss of soil carbon, and protect a variety of services such as the continued delivery of a high quality water resource.
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Two pictorial and descriptive models of the surface of a peat-forming bog are given, and a third shows the rate of peat accumulation. A simple quantitative model of the surface layers leads to the conclusion that the surface layer is in a steady state, fixing carbon, losing some by decay, and passing some on to the underlying peat proper. A similar model for the underlying peat shows that if decay is at a rate that is a constant proportion of what remains then there is an upper asymptotic limit to the depth of peat. But if the rate of decay decreases then peat accumulation continues indefinitely through at an ever-decreasing rate. A simulation model allowing greater realism but diminished understanding is outlined. -from Author
Chapter
This chapter reviews the wildfire problem in UK moorlands and heaths. It uses the Peak District National Park (PDNP) as a detailed case study to examine the spatial pattern and timing of wildfire occurrence, as well as associated policy implications.