滴灌水肥一体化配施有机肥对土壤N2O排放与酶活性的影响

奚雅静,汪俊玉,李银坤,武雪萍,李晓秀,王碧胜,李生平,宋霄君,刘彩彩

Effects of Drip Irrigation Water and Fertilizer Integration Combined with Organic Fertilizers on Soil N2O Emission and Enzyme Activity

YaJing XI,JunYu WANG,YinKun LI,XuePing WU,XiaoXiu LI,BiSheng WANG,ShengPing LI,XiaoJun SONG,CaiCai LIU

表3 土壤N2O排放通量与环境因子及无机氮含量的相关分析

Table 3 Correlation analysis of soil N2O emission fluxes with environmental factors and inorganic nitrogen contents

5 cm土温 5 cm soil temperature 土壤含水量 Soil water content 0-10 cm土层硝态氮含量 Nitrate nitrogen content in 0-10 cm soil layer 0-10 cm土层铵态氮含量 Ammonium nitrogen content in 0-10 cm soil layer CK 0.278 0.134 0.124 0.102 N1 0.319** 0.158 0.506** 0.155 N2 0.401** 0.237 0.766** 0.351 N3 0.445** 0.352 0.820** 0.512**