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1 供试土壤基本理化性质

Table 1 Basic properties of soils tested in different depths

土壤深度 Soil depth (cm) pH 容重 Density (g·cm-3) 有机质 Organic matter (g·kg-1) 全氮 Total N (g·kg-1) 碱解氮 Available N (mg·kg-1) 0-10 7.07 1.12 26.32 0.74 138.68 10-20 6.71 1.45 31.63 0.83 153.50 20-30 6.64 1.52 21.09 0.70 95.42 30-40 6.49 1.64 17.67 0.67 92.46