摘要
农田是温室气体的重要排放源之一,而水旱轮作是显著影响稻田温室气体排放的重要因素之一。本文分析了水旱轮作对甲烷(CH4)和氧化亚氮(N2O)两种主要温室气体产排的影响,从水肥管理和不同轮作方式等方面论述其对水旱轮作系统中土壤CH4和N2O排放的影响,并根据温室效应等因素,综合性地提出了推行稻季节水灌溉、规范作物施肥管理和优化轮作模式3种减排措施,以期为水旱轮作稻田温室气体减排提供参考。
Farmlands are one of the most important sources of greenhouse gas emissions.Paddy-upland rotation is significant factor affect ing greenhouse gas emissions in paddy soils.This paper discusses the effects of paddy-upland rotation on emissions of two main green house gases,methane(CH4)and nitrous oxide(N2O),including the impact of water-saving irrigation,fertilizer management and rotation method on soil CH4 and N2O emissions from paddy-upland rotation system.Three kinds of greenhouse emission reduction measures are al so proposed,including rice season water-saving irrigation,crop fertilization management and rotation mode optimization.
作者
熊丽萍
吴家梅
纪雄辉
彭华
李尝君
XIONG Li-ping;WU Jia-mei;JI Xiong-hui;PENG Hua;LI Chang-jun(Longping Branch of Graduate School of Hunan University,Changsha 410125,China;Hunan Institute of Agri-Environment and Ecol ogy,Changsha 410125,China;Ministry of Agriculture Key Laboratory of Agri-Environment in the Middle Reach Plain of Yangtze River,Changsha 410125,China;Hunan Province Key Laboratory of Prevention,Control and Remediation of Soil Heavy Metal Pollution,Chang sha 410125,China)
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2020年第4期863-871,共9页
Journal of Agro-Environment Science
基金
国家水稻产业技术体系项目(CARS-01-28)
国家重点研发计划项目(2016YFD0800705)。
关键词
水旱轮作
甲烷
氧化亚氮
paddy-upland rotation
methane
nitrous oxide
