土壤2011，Vol.43Issue(2)：184-189,6.
早稻秸秆原位焚烧对红壤晚稻田CH4和N2O排放及产量的影响
Influence of Early Rice Straw Burning on CH4 and N2O Emissions and Grain Yield of Later Rice Fields in Red Soil
摘要
Abstract
By using the method of static chamber-gas chromatograph technique, CH4 and N2O emission fluxes from later rice fields in 2009 were studied under the conventional chemical fertilizer (NPK) and conventional chemical fertilizer + rice straw burning (NPK+SB), while CH4 and N2O emission from rice straw burning was calculated by default value.The results showed that CH4 emissions during rice growing season were very similar in both treatments, meanwhile, N2O emission increased by 22.8％ than former, but the difference was not significant at 0.05 level.The highest N2O emission occurred in the period of soil saturation moisture aider top-dressing both in two treatments.CH4 and N2O emissions from rice straw burning represented 4.27％ and 17.31％ of total emissions in NPK+SB respectively.The global wanning potential per unit rice grain of NPK+SB was 22％ more than NPK.Rice straw burning should be avoided judged comprehensively by consideration of economic and environmental effects.关键词
晚稻田/秸秆焚烧/CH4/N2O/产量Key words
Later rice field/ Rice straw burning CI-4/ N2O/ Yield分类
农业科技引用本文复制引用
石生伟,李玉娥,李明德,万运帆,彭华,吴海勇..早稻秸秆原位焚烧对红壤晚稻田CH4和N2O排放及产量的影响[J].土壤,2011,43(2):184-189,6.基金项目
"十一五"国家科技支撑计划项目(2008BAD95B03、2007BAD89B11)资助 （2008BAD95B03、2007BAD89B11）
