秸秆还田深度对土壤温室气体排放及玉米产量的影响

朱晓晴,安晶,马玲,陈松岭,李嘉琦,邹洪涛,张玉龙

Effects of Different Straw Returning Depths on Soil Greenhouse Gas Emission and Maize Yield

XiaoQing ZHU,Jing AN,Ling MA,SongLing CHEN,JiaQi LI,HongTao ZOU,YuLong ZHANG

表2 秸秆不同还田深度下温室气体排放累积量

Table 2 Cumulative emissions of greenhouse gases with different depths of straw returning

处理 Treatment CO2累积排放量 Total cumulative emission of CO2 (kg C·hm-2) CH4累积排放量 Total cumulative emission of CH4 (kg C·hm-2) N2O累积排放量 Total cumulative emission of N2O (kg N·hm-2) CK 2714.4±19.4d -0.20±0.01d 13.6±0.2d T1 3246.6±25.4c -0.06±0.01ab 16.2±0.9c T2 3360.0±40.1b -0.03±0.01a 28.7±0.4a T3 3490.3±30.7a -0.10±0.02b 20.4±0.8b T4 3178.7±40.7c -0.15±0.02c 15.3±0.5c