Mitigating Agricultural Emissions of Methane |
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Authors: | AR Mosier JM Duxbury JR Freney O Heinemeyer K Minami DE Johnson |
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Institution: | (1) USDA/ARS, Fort Collins, Colorado 80521, USA;(2) Cornell University, Ithaca, New York 14850, USA;(3) CSIRO, Canberra, ACT, Australia;(4) BFAL, Braunschweig, Germany;(5) JIRCAS, Tsukuba, Japan;(6) Animal Sciences, Colorado State University, Fort Collins, Colorado 80523, USA |
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Abstract: | Agricultural crop and animal production systems are important sources and sinks for atmospheric methane (CH4). The major CH4 sources from this sector are ruminant animals, flooded rice fields, animal waste and biomass burning which total about one third of all global emissions. This paper discusses the factors that influence CH4 production and emission from these sources and the aerobic soil sink for atmospheric CH4 and assesses the magnitude of each source. Potential methods of mitigating CH4 emissions from the major sources could lead to improved crop and animal productivity. The global impact of using the mitigation options suggested could potentially decrease agricultural CH4 emissions by about 30%. |
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Keywords: | Methane emissions mitigation agriculture |
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