Methane and nitrous oxide emissions from land

JM Cloy*, Keith A. Smith*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

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Accumulation of the greenhouse gases carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) in the Earth's atmosphere, resulting from human activities, is responsible for recent global heating and associated climate change. Natural soil emissions of CH4 and N2O are substantial, and increase after land conversion to agriculture, e.g., flooded rice fields release CH4 and manures and synthetic nitrogen fertilizers promote the release of N2O. Some mitigation of N2O emission is achievable by improved nitrogen use efficiency. Replacement of fossil fuels by crop-based biofuels is controversial, because reduced CO2 emissions can be largely offset by increases in those of N2O.
Original languageEnglish
Title of host publicationEncyclopedia of Soils in the Environment
Subtitle of host publicationReference Module in Earth Systems and Environmental Sciences
Publication statusFirst published - 1 Feb 2022

Publication series

NameReference Module in Earth Systems and Environmental Sciences


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