我国稻田系统温室气体排放及减排对策分析 Greenhouse Gas Emissions from Paddy Field Ecosystems in China and Corresponding Mitigation Strategies

近年来温室气体排放增加引起的全球气候变暖备受人们的广泛关注，缓减温室气体排放势在必行。CH4和N2O是大气中两种重要的温室气体，在全球变暖中具有非常重要的作用。稻田系统是重要的温室气体排放源，本文从品种选择、水分管理、肥料施用、耕作制度以及秸秆还田和综合利用等几个方面总结了可以减缓我国稻田温室气体排放的一些措施，为我国低碳农业的可持续发展提供一定的技术支撑，为我国温室气体减排和缓解全球气候变暖作出积极的贡献。 In recent years, the issue of increase in greenhouse gas emissions and greenhouse effect induced by them has already aroused people’s great attention. Reducing greenhouse gas emission has become an urgent problem, which should be solved as soon as possible. CH4 and N2O are two major greenhouse gases, which play very significant role in global warming. Paddy field ecosystem is the important greenhouse gases (CH4 and N2O) emission sources. For the purpose of providing technological support for the sustainable development of low carbon agriculture, and making a positive contribution in reducing China’s greenhouse gas emission and relieving global warming, several controlling methods for reducing greenhouse gas emissions in Chinese paddy field ecosystem were elaborated from the following aspects: varieties selection, irrigation, fertilizer application, cropping system, straw amendments and straw complex utilization.