焚烧麦杆对稻田CH4和N2O排放的影响  

Influence of wheat straw burning on CH_4 and N_2O emissions from rice fields

作　　者：马静[1,2] 徐华[1] 蔡祖聪[1] 曹金留[3] 八木一行 

机构地区：[1]中国科学院南京土壤研究所,土壤与农业可持续发展国家重点实验室,江苏南京210008 [2]中国科学院研究生院,北京100049 [3]江苏农林职业技术学院,江苏句容212400 [4]日本国立农业环境技术研究所,日本筑波305

出　　处：《中国环境科学》2008年第2期107-110,共4页China Environmental Science

基　　金：国家自然科学基金资助项目(40621001,40671094)

摘　　要：采用3种麦杆处理方式(不还田、均匀混施和原位焚烧)进行田间试验,观测稻田CH4和N2O的排放情况,以探讨原位焚烧麦杆对稻田CH4和N2O排放的影响.结果表明,与不还田处理相比,原位焚烧显著增加稻田CH4排放量,同时显著减少稻田N2O排放量;与均匀混施处理相比,原位焚烧显著减少稻田CH4排放量,二者的N2O排放量无明显差异.A field experiment was conducted to monitor CH4 and N2O emissions from rice fields as affected by wheat straw burning. The experiment was designed to have 3 treatments, i.e. without wheat straw incorporation, evenly incorporating wheat straw and in situ burning wheat straw. Compared with no wheat straw incorporation, CH4 emission was markedly enhanced, while N2O emission was significantly decreased by wheat straw burning. Compared with evenly incorporating wheat straw, CH4 emission was significantly reduced by wheat straw burning. As for N2O emission, no significant difference was observed between burning and evenly incorporating wheat straw.

关 键 词：CH4 N2O 原位焚烧 

分 类 号：X511[环境科学与工程—环境工程]