B.K. Henry

B.K. Henry
Queensland University of Technology | QUT · Institute for Future Environments

Doctor of Philosophy

About

63
Publications
45,718
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2,458
Citations
Citations since 2017
24 Research Items
1252 Citations
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2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300

Publications

Publications (63)
Chapter
Full-text available
Soil organic carbon sequestration has received increasing attention due to the important benefits it can have for ecosystem services and in particular food production, climate change mitigation and adaptation. Indeed, soils rich in organic carbon are, in general, more fertile and support plant growth better than carbon-depleted soils. On the other...
Article
Full-text available
Soil organic carbon (SOC) sequestration is the transfer of CO2 from the atmosphere into soil organic matter. It, therefore, relies on photo- synthesis and plant-derived carbon (C) input, which usually occurs through biomass production. Janzen et al. (2022) reminded us that when calculating SOC sequestration potential, we should recognise the source...
Article
Time flies, as CO2 and global temperatures continue to rise rapidly. We can no longer rely on expensive and unachievable or long-delayed new technologies, requiring investment and development to reduce carbon emissions in future decades. Current geopolitical uncertainties are looming while climate change and food insecurity are increasing, and the...
Article
Full-text available
Soils have recently received attention in the policy area due to their various connections to climate change, human health and their key role in sustaining human societies in general. In this context, agricultural production and healthy nutritious food are linked to soil health and the diversity of their (micro-)biome, which depend on organic carbo...
Chapter
Full-text available
This article documents the skills, practices, technologies and policy frameworks that enable improvement of soil carbon sequestration at scale. The chapter includes: 1. Practices, skills and technologies that can increase soil carbon sequestration and stocks 2. The historical evolution of soil carbon research over the last 70 years 3. Consideration...
Article
Full-text available
Application of organic amendments such as livestock manures and compost is commonly listed amongst strategies with potential to sequester soil organic carbon (SOC) in agriculture and contribute to climate change mitigation. However, quantifying this potential is hampered by the paucity of data on amounts and characteristics of organic amendments ap...
Chapter
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Description, carbon and other benefits, drawbacks and barriers of grassland-related practices. Chapters: 30. Conservation of permanent grassland 31. Grassland diversification 32. Restoration of degraded grassland 33. Conversion of cropland to grassland 34. Improved pasture management 35. Grazing exclusion and rotational grazing 36. Pastoralism Book...
Chapter
Full-text available
Understanding management-induced C sequestration potential in soils under agriculture, forestry, and other land use systems and their quantification to offset increasing greenhouse gases are of global concern. This chapter reviews management-induced changes in C storage in soils of grazing grassland systems, their impacts on ecosystem functions, an...
Chapter
Full-text available
Understanding management-induced C sequestration potential in soils under agriculture, forestry, and other land use systems and their quantification to offset increasing greenhouse gases are of global concern. This chapter reviews management-induced changes in C storage in soils of grazing grassland systems, their impacts on ecosystem functions, an...
Technical Report
Full-text available
This report examines sustainable land management (SLM) and its potential as an integrative strategy to address multiple environmental and sustainable development objectives. It highlights the linkages between SLM and soil health, land degradation, food security, climate changes mitigation and adaptation. The report is intended to provide informatio...
Article
Textiles release fibres to the environment during production, use, and at end-of-life disposal. Approximately two-thirds of all textile items are now synthetic, dominated by petroleum-based organic polymers such as polyester, polyamide and acrylic. Plastic microfibres (<5 mm) and nanofibres (<100 nm) have been identified in ecosystems in all region...
Article
Full-text available
There is growing evidence on the extent to which projected changes in climate, including increases in atmospheric levels of carbon dioxide, higher temperatures, changes in amount, seasonality and variability of precipitation and increases in extreme weather events, may affect future availability of ruminant animal products. Elements of climate chan...
Article
Full-text available
Several tools have been developed to compare the environmental impact of textiles. The most widely used are Higg Materials Sustainability Index (MSI) and MADE-BY Fiber Benchmark. They use data from production to evaluate the environmental impacts of textiles differentiated by fiber type. The use phase is excluded from both tools. This article discu...
Technical Report
Full-text available
This report presents a literature review of clothing use phase. The purpose is to support improved methodological development for accounting for the use phase in Life Cycle Assessment (LCA) of apparel. All relevant textile fibres are included in the review. However, the main focus is on wool. We ask whether the use of wool has different environment...
Conference Paper
This paper presents results from a literature review on use phase of clothing with focus on wool. The aim of the review is to study if there is empirical grounding for assuming that the use phase is different for clothes made of different fibres, and if this information could be used in modelling the use phase. We will answer this question based on...
Article
This article discusses laundering practices around the world including alternative methods such as washing by hand, airing, steaming, and dry-cleaning. These methods, which have received little attention in research, are often more suited to products made of wool, silk or other materials able to be cleaned using gentler techniques than more commonl...
Article
The study investigated the impact of historical and future climate changes on potential natural vegetation (PNV) types and net primary productivity (NPP) in Australia, using the Comprehensive and Sequential Classification System model and the Miami model coupled with climate of the 1931-70 and 1971-2010 periods and the projected climate in 2050. Tw...
Article
Full-text available
Australia is the largest supplier of fine apparel wool in the world, produced from diverse sheep production systems. To date, broad scale analyses of the environmental credentials of Australian wool have not used detailed farm-scale data, resulting in a knowledge gap regarding the performance of this product. This study is the first multiple impact...
Article
The impact of grazing on soil carbon (C) and nitrogen (N) cycles is complex, and across a large area it can be difficult to uncover the magnitude of the effects. Here, we have linked two common approaches to statistical modelling-regression trees and linear mixed models-in a novel way to explore various aspects of soil C and N dynamics for a large,...
Article
Soil and land-management interactions in Australian native-forest regrowth remain a major source of uncertainty in the context of the global carbon economy. We sampled soil total organic C (TOC) and soil total N (TN) stocks at 45 sites within the Brigalow ecological community of the Brigalow Belt bioregion, Queensland, Australia. The sites were mat...
Chapter
This chapter examines life cycle assessment (LCA) of wool textiles and clothing, focussing on the specific elements of the wool value chain where methodology and data significantly affect quantification of environmental impacts and resource use. Recent methodological developments, particularly for handling co-products from production on sheep farms...
Article
Full-text available
Australia is one of the two largest exporting nations for beef and lamb in the world and the USA is a major export market for both products. To inform the Australian red meat industry regarding the environmental performance of exported food products, this study conducted the first multi-impact analysis of Australian red meat export supply chains in...
Technical Report
Full-text available
This review is a product of the Livestock Environmental Assessment and Performance (LEAP) Partnership . The initial objective of this review was to provide the members LEAP Technical Advisory Group (TAG) on biodiversity with a common ground of knowledge on the main biodiversity indicators and assessment methods that could be applied to livestock p...
Article
Full-text available
Purpose Methodology of co-product handling is a critical determinant of calculated resource use and environmental emissions per kilogram (kg) product but has not been examined in detail for different sheep production systems. This paper investigates alternative approaches for handling co-production of wool and live weight (LW, for meat) from dual p...
Article
In life cycle assessment studies, greenhouse gas (GHG) emissions from direct land-use change have been estimated to make a significant contribution to the global warming potential of agricultural products. However, these estimates have a high uncertainty due to the complexity of data requirements and difficulty in attribution of land-use change. Th...
Article
The sheep industry has played an important role in Australia's development and economy over the 220 years since European settlement and remains an important land use in Australia, occupying an estimated 85million ha of continental land mass. Historically, deforestation was carried out in many sheep-rearing regions to promote pasture growth but this...
Article
Full-text available
Over the past three decades major changes have occurred in Australia's beef industry, affecting productivity and potentially the amount of resources used and environmental impacts from production. Using a life cycle assessment (LCA) approach with a ‘cradle-to-farm gate’ boundary the changes in greenhouse gas (GHG) emission intensity and key resourc...
Article
The objective of the present study was to develop a model-data fusion approach using remotely collected liveweight (LW) data from individual animals (weighing station placed at the water trough) and evaluate the potential for these data from frequent weighing to increase the accuracy of estimates of methane emissions from beef cattle grazing tropic...
Chapter
Australian agriculture is faced with the dilemma of increasing food production for a growing domestic and world population while decreasing environmental impacts and supporting the social and economic future of regional communities. The challenge for farmers is compounded by declining rates of productivity growth which have been linked to changes i...
Article
Full-text available
It is widely recognised that defining trade-offs between greenhouse gas emissions using ‘emission equivalence’ based on global warming potentials (GWPs) referenced to carbon dioxide produces anomalous results when applied to methane. The short atmospheric lifetime of methane, compared to the timescales of CO2 uptake, leads to the greenhouse warming...
Article
Full-text available
Climate change presents a range of challenges for animal agriculture in Australia. Livestock production will be affected by changes in temperature and water availability through impacts on pasture and forage crop quantity and quality, feed-grain production and price, and disease and pest distributions. This paper provides an overview of these impac...
Chapter
Full-text available
Effective response by government and individuals to the risk of land degradation requires an understanding of regional climate variations and the impacts of climate and management on condition and productivity of land and vegetation resources. Analysis of past land degradation and climate variability provides some understanding of vulnerability to...
Article
Agriculture is responsible for a significant proportion of total anthropogenic greenhouse gas emissions (perhaps 18% globally), and therefore has the potential to contribute to efforts to reduce emissions as a means of minimising the risk of dangerous climate change. The largest contributions to emissions are attributed to ruminant methane producti...
Article
Full-text available
Agriculture is responsible for a significant pro-portion of total anthropogenic greenhouse gas emissions (perhaps 18% globally), and there-fore has the potential to contribute to efforts to reduce emissions as a means of minimising the risk of dangerous climate change. The largest contributions to emissions are attributed to rumi-nant methane produ...
Article
Full-text available
Land-change science emphasizes the intimate linkages between the human and environmental components of land management systems. Recent theoretical developments in drylands identify a small set of key principles that can guide the understanding of these linkages. Using these principles, a detailed study of seven major degradation episodes over the p...
Chapter
Full-text available
Effective response by government and individuals to the risk of land degradation requires an understanding of regional climate variations and the impacts of climate and management on condition and productivity of land and vegetation resources. Analysis of past land degradation and climate variability provides some understanding of vulnerability to...
Technical Report
Full-text available
This project has developed a remote sensing index for monitoring bare ground1 in all seasons over tropical savannah grasslands at a spatial resolution of 1 km. The MODIS bare ground index (ModBGI) was developed over the Charters Towers Landsat –TM scene area. It uses data from combined AM and PM overpasses of the MODerate Resolution Imaging Spectro...
Article
Data from 57 permanent monitoring sites are used to document the growth in woody vegetation and estimate the carbon sink in 27 M ha of eucalypt woodlands (savannas), contained within c. 60 M ha of grazed woodlands in Queensland (northeast Australia). The study sites are shown to be representative of the environment and structure of the eucalypt woo...
Article
Concern about the risk of harmful human-induced climate change has resulted in international efforts to reduce greenhouse gas emissions to the atmosphere. We review the international and national context for consideration of greenhouse abatement in native vegetation management and discuss potential options in Queensland. Queensland has large areas...
Article
Full-text available
Theory suggests that the level of enrichment of (18)O above source water in plant organic material (Delta) may provide an integrative indicator of control of water loss. However, there are still gaps in our understanding of the processes affecting Delta. One such gap is the observed discrepancy between modeled enrichment of water at the sites of ev...
Article
Defining drought, categorising current droughts, and assessing grassland and rangeland sustainability in a quantitative and scientific manner are important national issues for Australian State and Commonwealth governments, landholders and agribusiness. A challenge for ecologists and modellers of Australia’s grasslands and rangelands is to integrate...
Article
Full-text available
Measurement of discrimination against 18O during dark respiration in plants is currently accepted as the only reliable method of estimating the partitioning of electrons between the cytochrome and alternative pathways. In this paper, we review the theory of the technique and its application to a gas-phase system. We extend it to include sampling ef...
Article
Full-text available
Changes in the respiratory rate and the contribution of the cytochrome (Cyt) c oxidase and alternative oxidase (COX and AOX, respectively) were investigated in soybean (Glycine max L. cv Stevens) root seedlings using the 18O-discrimination method. In 4-d-old roots respiration proceeded almost entirely via COX, but by d 17 more than 50% of the flux...
Article
A rapid, inexpensive on-line technique for the analysis of stable isotopes of oxygen in organic matter and water is described. The oxygen in the sample is pyrolysed over nickelized carbon using a modified Unterzaucher technique and converted to carbon monoxide. Separation of the CO from N2 by gas chromatography before mass spectrometric measurement...
Article
A rapid, inexpensive on-line technique for the analysis of stable isotopes of oxygen in organic matter and water is described. The oxygen in the sample is pyrolysed over nickelized carbon using a modified Unterzaucher technique and converted to carbon monoxide. Separation of the CO from N2 by gas chromatography before mass spectrometric measurement...

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Projects

Projects (2)
Archived project
he LEAP Partnership was founded in 2012 and involves stakeholders across the livestock sectors, all who share an interest in improving the environmental performance of livestock supply chains. The objective is to develop comprehensive guidance and methodology for understanding the environmental performance of livestock supply chains. The overarching goal of this initiative is to contribute to improved environmental performance of the livestock sector while considering social and economic viability. The Partnership will contribute towards the achievement of this goal through support to decision-making by providing guidance on environmental assessments and their subsequent application. The Partnership promotes an exchange of data and information, technical expertise and research geared towards improving and harmonizing the way in which livestock food chains are assessed and monitored. Source: http://www.fao.org/partnerships/leap/en/