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| Emission pathways and influencing factors for CH4 and N2O from rice-duck farming |
| Received:December 18, 2019 |
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| KeyWord:rice-duck farming;greenhouse gas;emission pathways;biological disturbance |
| Author Name | Affiliation | E-mail | | WEN Ting | College of Natural Resources and Environment, South China Agricultural University, Guangdong Provincial Key Laboratory of EcoCircular Agriculture, Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China | | | ZHAO Ben-liang | College of Natural Resources and Environment, South China Agricultural University, Guangdong Provincial Key Laboratory of EcoCircular Agriculture, Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China | blzhao@scau.edu.cn | | ZHANG Jia-en | College of Natural Resources and Environment, South China Agricultural University, Guangdong Provincial Key Laboratory of EcoCircular Agriculture, Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China | jeanzh@scau.edu.cn |
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| Abstract: |
| Rice-duck farming is one of the primary planting-breeding models in practice which provides both economic value and ecological benefits through duck activities in paddy fields. Not only can the ducks enrich the biodiversity in paddy fields, but also the ecosystem niche is fully utilized. The continuous movement, feeding activities, and duck excretions in paddy fields influence methane(CH4)and nitrous oxide(N2O)emissions and weaken the global warming potential of the ecosystem. Therefore, the study discussed the process of greenhouse gas production, transport and release in rice-duck farming with respect to the responses of water, soil, the functional bacterial community in CH4, N2O transformation and the planting techniques in rice-duck farming based on the perturbation of ducks' activities on paddy environment. Considering the current research weaknesses in rice-duck farming, the study put forward a series of suggestions on mitigation of greenhouse gas emission in the planting-breeding models to provide scientific reference for future research. |
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