Ivan S. Mettrop

Ivan S. Mettrop
Altenburg & Wymenga ecological research · Biodiversity & Landscape

PhD

About

22
Publications
4,509
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
127
Citations

Publications

Publications (22)
Article
Brown moss-dominated rich fens are characterized by minerotrophic conditions, in which calcium (Ca) and iron (Fe) concentrations show large variations. We examined the relative importance of Ca and Fe in relation to the occurrence of three typical brown moss species: Scorpidium scorpioides, Scorpidium cossonii, and Hamatocaulis vernicosus. Peat che...
Article
Full-text available
In regions with intensive agriculture, water level fluctuation in wetlands has generally become constricted within narrow limits. Water authorities are, however, considering the re-establishment of fluctuating water levels as a management tool in biodiverse, base-rich fens ('rich fens'). This includes temporary inundation with surface water from di...
Article
Full-text available
Chemical characteristics of Dutch poor and rich fens and effects of atmospheric nitrogen deposition The vegetation composition of Dutch poor and rich fens of terrestrialization peatlands can be divided into six groups, from mesotrophic brownmoss dominated rich fens to acidic sphagnum moss dominated poor fens. The porewater bicarbonate concentratio...
Article
Full-text available
Lang is gedacht dat aanvoer van zowel ijzerrijk als kalkrijk grondwater in veengebieden zou leiden tot een lage beschikbaarheid van fosfaat, wat goed is in tijden van hoge stikstofdepositie. Een studie in Nederlandse en Zweedse kalkmoerassen (H7230), trilvenen (H7140) en blauwgraslanden (H6410) laat echter zien dat de rol van ijzer en calcium niet...
Article
Full-text available
Het huidige landgebruik en waterbeheer in het Friese veenweidegebied kent verschillende knelpunten. Voortdurende veenbodemdaling, CO2 -uitstoot, beperkte mogelijkheden voor waterberging en verlies van biodiversiteit vragen om adaptatie. Het koppelen van geïsoleerde polders aan het boezemstelsel kan leiden tot zowel een veerkrachtiger watersysteem a...
Article
Full-text available
Aim To further unravel P availability in mineral-rich fens, and test whether high Fe in the soil would lead to low P availability to the vegetation. Methods Mesotrophic fens were selected over gradients in Ca and Fe in central Sweden and the Netherlands, to study characteristics of vegetation, pore water and peat soil, including inorganic and orga...
Article
As a result of altered land use, water shortage and eutrophication, aquatic and semi-aquatic biodiversity in minerotrophic peatlands has severely declined in The Netherlands. After the improvement of surface water quality following hydrological and other measures, biodiversity is now increasing again in many reserves including former peat extractio...
Article
Full-text available
Deterioration and restoration of minerotrophic waters in the Dutch peat landscape As a result of altered land use, water shortage and eu- trophication, aquatic and semi-aquatic biodiversi- ty in minerotrophic peatlands has severely declined in The Netherlands. After the improvement of surface water quality following hydrological and other meas- ur...
Article
As a result of altered land use, water shortage and eutrophication, aquatic and semi-aquatic biodiversity in minerotrophic peatlands has severely declined in The Netherlands. After the improvement of surface water quality following hydrological and other measures, biodiversity is now increasing again in many reserves including former peat extractio...
Article
Full-text available
The moss Calliergon megalophyllum is rediscovered in the Netherlands after approximately 50 years of absence, in a location different from before: National Park Weerribben-Wieden. This is a Natura 2000 wetland area, and a Dutch hotspot for rich-fen bryophytes. The species was growing in a fen pool. Plant species composition and water chemistry were...
Article
Full-text available
QuestionWhat are the changes in mineral-rich fens (H7410A) after 25 yr of improved surface water quality in a national park?LocationStobbenribben floating-fen complex in National Park Weerribben-Wieden, the Netherlands.Methods Bryophyte species composition, peak above-ground biomass and vascular plant nutrients, as well as electrical conductivity o...
Article
Few quantitative experimental studies have been carried out on the influence of subterranean termite activity on the water infiltration capacity of crusted soils in the semi-arid Sahelian region. These studies found increased infiltration rates on soils that were affected by foraging galleries of subterranean termites. In this paper, remarkable res...
Article
Termites are important ecosystem-engineers in subtropical and tropical regions. The effect of termite activity affecting soil infiltration is well documented in the Sahelian region. Most studies find increased infiltration rates on surfaces that are affected by termite activity in comparison to crusted areas showing non-termite presence. Crusted ag...

Network

Cited By

Projects

Projects (2)
Archived project
Assessment of the effects of airborne nitrogen on rich and poor fens