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5 秸秆不同还田深度下的综合净增温潜势（GWP）和气体排放强度（GHGI）
Table 5 Changes of GWP and GHGI from the corn field under different depths of straw returning
处理
Treatment		 CH4 GWP
(kg CO2-eq·hm-2)		 N2O GWP
(kg CO2-eq·hm-2)		 净碳收支
NECB (t·hm-2)		 固碳效应
δSOC (t CO2-eq·hm-2)		 Net GWP
(kg C·hm-2)		 温室气体排放强度GHGI (kg CO2-eq·t-1)
CK -0.27 21.34 1.77 0.45 5193.82 442.03
T1 -0.08 25.44 1.21 0.31 6430.40 512.79
T2 -0.03 45.07 1.95 0.50 11441.70 921.98
T3 -0.13 32.01 1.82 0.47 8013.02 571.54
T4 -0.20 24.07 2.12 0.54 5830.19 410.87