摘要
农田土壤通过微生物呼吸、植物根系呼吸和土壤动物呼吸,释放大量温室气体,成为大气中主要温室气体(CO2、CH4和N2O)的重要来源。文章在阐述土壤温室气体产生机制的基础上,着重从土壤生物、土壤理化性质(主要包括温湿度、有机质、pH、Eh、土壤质地等)、水肥管理及耕作措施等角度对农田土壤温室气体释放的影响进行了综述,对土壤温室气体的减排措施进行了总结,并就今后农田土壤温室气体的研究重点和方向进行了展望。
Soil is a major source of greenhouse gases （GHGs）, such as carbon dioxide （CO2）, methane （CH4） and nitrous oxide （N2O）, which are mainly resulted from microbial respiration, root respiration, and soil fauna respiration. Based on the introduction of mechanism of GHGs generation, A number of effective factors, such as soil biology, soil physical ＆ chemical characteristics （including soil temperature ＆ humidity, soil organic matter, pH, soil redox potential （Eh）, soil texture, etc）, irrigating ＆ fertilizing management and cultivatiing measures that directly or indirectly influence soil GHGs fluxes were significantly expounded. Controlling measures of GHGs emission were summarized. In the end, research focuses in future were suggested in this paper.
出处
《生态环境》
CSCD
北大核心
2008年第6期2488-2493,共6页
Ecology and Environmnet
基金
山东省科技攻关项目(2006GG2309001)
山东省优秀中青年科学家科研奖励基金(2007BS08028)
关键词
农田土壤
温室气体
产生机制
影响因素
减排措施
研究展望
farmland soil
greenhouse gases （GHGs）
generation mechanism
impact factors
controlling measures
research forecasting
