不同秸秆还田模式与氮肥施用量对土壤N_2O排放的影响  

Effect of straw return and nitrogen fertilizer application on the N_2O emission of soil

作　　者：潘志勇[1] 吴文良[1] 刘光栋[1] 高秀文[1] 

机构地区：[1]中国农业大学资源与环境学院,北京100094

出　　处：《土壤肥料》2004年第5期6-8,共3页Soils and Fertilizers

基　　金：国家自然科学基金重点项目"基于农田生态系统碳氮平衡的环境成本评估模型"和"十五"重大攻关项目"生态农业技术体系与示范"资助。

摘　　要：以山东省桓台县为试验地点,分析在高产条件下,不同秸秆还田模式和氮肥施用量对农田N2O排放的影响。试验结果表明,氮肥施用量与秸秆还田模式都是影响土壤N2O排放的重要因素;小麦秸秆还田可以大大降低土壤N2O的排放,施用有机粪肥是影响N2O排放的另一重要因素。Huantai county is famous for its crop straw return and high fertilizer input. The difference of straw return and nitrogen application is focused on in this research. The results indicate that different straw return and nitrogen application are two important factors to effect the N_2O emission of soil. Most important of all, the N_2O emission of soil can be decreased by wheat-straw-return but it can be hasten by the application of manure.

关 键 词：秸秆还田 氮肥 N2O 排放 

分 类 号：S141.4[农业科学—肥料学]