Sam Bonnett's Outputs (19)

Sensing solutions in soil biodiversity and carbon monitoring; from acoustics to biosensing (2024)
Presentation / Conference Contribution

This presentation formed an overview of the current research into the technologies we are developing in SOAS at UWE for the analysis of soil carbon dynamics and soil biodiversity. It highlights three main strands; electrochemical (bio)sensing, gas s... Read More about Sensing solutions in soil biodiversity and carbon monitoring; from acoustics to biosensing.

Exploration of shrimp shell chitin as an agricultural biostimulant and its effects on soil microbial respiration (2022)
Presentation / Conference Contribution

Chitin (poly-(1→4)-β-N-acetyl-D-glucosamine) is a novel bio-stimulant derived from an inert by-product from sustainable fish production. This study observed the effect of chitin derived from shrimp shells on agricultural soil microorganism metabolism... Read More about Exploration of shrimp shell chitin as an agricultural biostimulant and its effects on soil microbial respiration.

Use of a nitrification inhibitor reduces nitrous oxide (N2O) emissions from compacted grassland with different soil textures and climatic conditions (2021)
Journal Article

Grassland accounts for 70 % of the global agricultural area. Grassland amended with N fertiliser, although increasing productivity, encourages the emission of the greenhouse gas nitrous oxide (N2O). Soil compaction can result in impeded water movemen... Read More about Use of a nitrification inhibitor reduces nitrous oxide (N2O) emissions from compacted grassland with different soil textures and climatic conditions.

Soil compaction effects on grassland silage yields and soil structure under different levels of compaction over three years (2019)
Journal Article

Soil compaction has been estimated to be responsible for 33 million ha of soil degradation in Europe, reducing crop yields, however there is limited data on grassland silage yields loss. Extended grazing periods, increased size and weight of farm veh... Read More about Soil compaction effects on grassland silage yields and soil structure under different levels of compaction over three years.

A baseline assessment of the United Nations Sustainable Development Goals (SDGs) within European Student Union web environments (2019)
Journal Article

The world of student unions is under-researched, particularly relating to global issues and challenges, despite them holding a large proportion of the future workforce. At present, the European Students Union (ESU) has a duty of care to approximately... Read More about A baseline assessment of the United Nations Sustainable Development Goals (SDGs) within European Student Union web environments.

Microbial mechanisms of carbon and nitrogen acquisition in contrasting urban soils (2018)
Journal Article

© 2018 Elsevier Masson SAS Urban soils play an essential role in delivering ecosystem services due to soil microbial functions but there is limited evidence of the role of urban soils in the global carbon cycle. Inorganic nitrogen (N) reduces microbi... Read More about Microbial mechanisms of carbon and nitrogen acquisition in contrasting urban soils.

Physical conditions regulate the fungal to bacterial ratios of a tropical suspended soil (2017)
Journal Article

As a source of ‘suspended soils’, epiphytes contribute large amounts of organic matter to the canopy of tropical rain forests. Microbes associated with epiphytes are responsible for much of the nutrient cycling taking place in rain forest canopies. H... Read More about Physical conditions regulate the fungal to bacterial ratios of a tropical suspended soil.

Hydrological legacy determines the type of enzyme inhibition in a peatlands chronosequence (2017)
Journal Article

© 2017 The Author(s). Peatland ecosystems contain one-third of the world's soil carbon store and many have been exposed to drought leading to a loss of carbon. Understanding biogeochemical mechanisms affecting decomposition in peatlands is essential... Read More about Hydrological legacy determines the type of enzyme inhibition in a peatlands chronosequence.

The relative importance of invertebrate and microbial decomposition in a rainforest restoration project (2017)
Journal Article

© 2017 Society for Ecological Restoration Tropical rainforests are increasingly disturbed by human activities. While restoration projects often succeed in replacing tree cover, they rarely manage to restore soil function. Consequently, there is an ur... Read More about The relative importance of invertebrate and microbial decomposition in a rainforest restoration project.

Biogeochemistry in the scales (2017)
Book Chapter

Global environmental change is challenging our understanding of how communities as a whole interact with their physical environment. Ideally, we would model the impacts of global environmental change at a global level. However, in order to mathematic... Read More about Biogeochemistry in the scales.

Peatland hydrological legacy affects enzyme inhibition and potential DOC release (2015)
Presentation / Conference Contribution

Peatland ecosystems have been drained for agricultural reclamation that has led to degradation and potential loss of a variety of ecosystem services including carbon sequestration. The impact of rewetting by ditch-blocking on dissolved organic carbon... Read More about Peatland hydrological legacy affects enzyme inhibition and potential DOC release.

Influence of drying-rewetting events on the response of soil microbial functions to biochar (2014)
Presentation / Conference Contribution

Biochar application has been shown to positively affect soil microbial functions such as reducing greenhouse gas emissions, increasing water/nutrient availability and increasing crop yields in tropical regions (Lehmann & Joseph, 2009). Understanding... Read More about Influence of drying-rewetting events on the response of soil microbial functions to biochar.

Temperature response of denitrification rate and greenhouse gas production in agricultural river marginal wetland soils (2013)
Journal Article

Soils are predicted to exhibit significant feedback to global warming via the temperature response of greenhouse gas (GHG) production. However, the temperature response of hydromorphic wetland soils is complicated by confounding factors such as oxyge... Read More about Temperature response of denitrification rate and greenhouse gas production in agricultural river marginal wetland soils.

Guidelines for monitoring the success of peatland restoration (2011)
Report

The aim of this guidance is to provide information to enable peatland restoration projects to develop appropriate monitoring programmes. Degraded peatlands are restored for a wide range of reasons. Restoration objectives can include protecting and en... Read More about Guidelines for monitoring the success of peatland restoration.

Short-term effect of deep shade and enhanced nitrogen supply on Sphagnum capillifolium morphophysiology (2010)
Journal Article

Sphagnum capillifolium mesocosms collected from an ombrotrophic blanket bog were subjected to controlled photon flux densities (control and shaded) and nitrogen (low and high) treatments between November 2003 and August 2004. Shading significantly re... Read More about Short-term effect of deep shade and enhanced nitrogen supply on Sphagnum capillifolium morphophysiology.

Wetland and floodplain soils: Their characteristics, management and future (2009)
Book Chapter

A review of techniques for monitoring the success of peatland restoration (2009)
Report

An important element of all peatland restoration
projects is a programme of monitoring to check
results and progress. Several peat project
workshops identified a demand for technical
guidance on monitoring techniques. So Natural
England commissi... Read More about A review of techniques for monitoring the success of peatland restoration.

Short-term effectiveness of drain-blocking in suppressing enzymic peat decomposition and DOC export (2008)
Report

It has become evident that there is a general problem of increasing colour in the water draining from areas of accumulated peat in upland Britain. It was agreed in early 2007 to set up a preliminary investigation into the causes of change in colour u... Read More about Short-term effectiveness of drain-blocking in suppressing enzymic peat decomposition and DOC export.

Seasonal variations in decomposition processes in a valley-bottom riparian peatland (2006)
Journal Article

A year-long field survey was carried out at a valley-bottom riparian peatland site in North Wales, UK from January 2002 to December 2002 to examine the seasonal variation of decomposition processes and dissolved organic carbon (DOC) concentrations. P... Read More about Seasonal variations in decomposition processes in a valley-bottom riparian peatland.