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To what extent can zero tillage lead to a reduction in greenhouse gas emissions from temperate soils?

Mangalassery, Shamsudheen; Sjögersten, Sofie; Sparkes, Debbie L.; Sturrock, Craig; Craigon, Jim; Mooney, Sacha J.

Authors

Shamsudheen Mangalassery

Sofie Sjögersten

Debbie L. Sparkes

Craig Sturrock craig.sturrock@nottingham.ac.uk

Jim Craigon

Sacha J. Mooney



Abstract

Soil tillage practices have a profound influence on the physical properties of soil and the greenhouse gas (GHG) balance. However there have been very few integrated studies on the emission of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) and soil biophysical and chemical characteristics under different soil management systems. We recorded a significantly higher net global warming potential under conventional tillage systems (26–31% higher than zero tillage systems). Crucially the 3-D soil pore network, imaged using X-ray Computed Tomography, modified by tillage played a significant role in the flux of CO2 and CH4. In contrast, N2O flux was determined mainly by microbial biomass carbon and soil moisture content. Our work indicates that zero tillage could play a significant role in minimising emissions of GHGs from soils and contribute to efforts to mitigate against climate change.

Journal Article Type Article
Publication Date 2015-05
Journal Scientific Reports
Print ISSN 2045-2322
Electronic ISSN 2045-2322
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 4
Issue 1
Article Number 4586
APA6 Citation Mangalassery, S., Sjögersten, S., Sparkes, D. L., Sturrock, C., Craigon, J., & Mooney, S. J. (2015). To what extent can zero tillage lead to a reduction in greenhouse gas emissions from temperate soils?. Scientific Reports, 4(1), https://doi.org/10.1038/srep04586
DOI https://doi.org/10.1038/srep04586
Publisher URL https://doi.org/10.1038/srep04586
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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