中国生态农业学报2018,Vol.26Issue(5):633-642,10.DOI:10.13930/j.cnki.cjea.171068
稻田种养结合循环农业温室气体排放的调控与机制
Regulation and mechanism of greenhouse gas emissions of circular agriculture ecosystem of planting and breeding in paddy
摘要
Abstract
Rice is an important food crop in China and contributes immensely to ensuring food security, the national economy and the people's livelihood. Paddy fields make a significant fraction of greenhouse gases (GHG) emissions sources, including methane (CH4) and nitrous oxide (N2O). Therefore, controlling GHG emissions from rice fields is critical in mitigating global greenhouse effects. In recent years, the combination of planting and breeding in paddy has developed rapidly in China. The mode not only keeps a steady yield, increasing efficiency and promoting green development, but also changes the characteristics of GHG emissions and global warming potential (GWP) in paddy fields. Several combinations of planting and breeding in paddy (including rice-duck, rice-crayfish, rice-fish, rice-crab and rice-turtle) add niche and extend the food chain in rice paddy ecosystems. GHG emissions and GWP of the combination of planting and breeding in paddy are affected by the continuous movement and feeding activities of breeding organisms in the ecosystem with an appropriate mitigation of GHG emission. In order to provide theoretical and technical bases for GHG emissions mitigation, rice benefits increment and a healthy development of the combination of planting and breeding in paddy, this paper summarizes the characteristics of CH4and N2O emissions and the effects of fertilizer and irrigation management and also explores available methods and research prospects used to reduce GHG emissions.关键词
稻田/种养结合/循环农业/CH4排放/N2O排放/水肥管理Key words
Paddy field/Combination of planting and breeding/Circular agriculture/CH4emission/N2O emission/Fertilizer and irrigation management分类
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王强盛..稻田种养结合循环农业温室气体排放的调控与机制[J].中国生态农业学报,2018,26(5):633-642,10.基金项目
中央财政重大农业技术推广项目(TG2016006)、江苏省政策引导类科技专项(SZHA2017022)、江苏省农业三新工程项目(SXGC2016309,SXGC2016243)和句容市科技支撑项目(NY2017608371)资助 This study was supported by the Central Finance for Major Agricultural Innovative Technology Extension of China(TG2016006),the Special Fund for the S&T Plans According to Policies Guidance of Jiangsu Province,China(SZHA2017022),the Agrotechnical Innovation Projects of Jiangsu Province,China(SXGC2016309,SXGC2016243),and the Key R&D Projects of Jurong City,Jiangsu Province,China(NY2017608371). (TG2016006)