农业环境科学学报2011，Vol.30Issue(11)：2362-2367,6.
秸秆还田对免耕稻田温室气体排放及土壤有机碳固定的影响
Effects of Rape Residue Mulch on Greenhouse Gas Emissions and Carbon Sequestration from No-tillage Rice Fields
摘要
Abstract
Carbon sequestrations by soils from no-tillage paddy fields are affected by crop residue mulch, which alter greenhouse gas emissions and thus influence the contribution of soil carbon sequestration to global warming. Therefore, this paper aims to study effects of rape residue mulch on greenhouse gas(CO2, CH4 and N2O) emissions, and organic carbon sequestration by soils from no-tillage paddy fields, and to assess the contribution of carbon sequestration to global warming. The results showed that rape residue mulch significantly increased emissions of CO2 and N2O, decreased CH4 emissions. Application of rape residues significantly increased soil organic C contents and thus C sequestration by soils. Increased application of rape residues decreased net global wanning potentials. Hence, our results suggested that it was important for taking into account the application of rape residues to increase C sequestration potential and to alleviate greenhouse gas emissions due to residue mulch.关键词
秸秆还田/免耕稻田/温室气体/碳固定/增温潜势Key words
residue returning/ no-tillage paddy field/ greenhouse gas/ carbon sequestration/ global warming potential分类
农业科技引用本文复制引用
李成芳,刘诗晴,夏起昕,寇志奎,张枝盛,曹凑贵,吴海亚,梅金安,翟中兵,张丛德,魏坦雄..秸秆还田对免耕稻田温室气体排放及土壤有机碳固定的影响[J].农业环境科学学报,2011,30(11):2362-2367,6.基金项目
国家科技支撑计划:粮食丰产科技工程(2011BAD16B02) （2011BAD16B02）
国家自然科学基金(31100319) （31100319）
中央高校基本科研业务费专项资金(2010QC032) （2010QC032）
