灌溉下限对设施土壤N2O和NO排放特征的影响

张丽媛,吕金东,石欣悦,虞娜,邹洪涛,张玉玲,张玉龙

Effects of Irrigation Regimes on N2O and NO Emissions from Greenhouse Soil

LiYuan ZHANG,JinDong LÜ,XinYue SHI,Na YU,HongTao ZOU,YuLing ZHANG,YuLong ZHANG

表4 不同灌溉下限土壤N2O、NO与无机氮、可溶性有机氮及孔隙含水量的相关分析

Table 4 Correlation analysis of soil N2O, NO, inorganic nitrogen, soluble organic nitrogen and WFPS under different irrigation regimes

项目 Item N2O NO 铵态氮 NH4+-N 硝态氮 NO3--N 亚硝态氮 NO2--N 可溶性总氮STN 可溶性有机氮SON WFPS N2O 1 0.696** 0.619** -0.036ns 0.884** -0.050ns -0.093ns 0.415** NO 1 0.509** -0.051ns 0.622** -0.136ns -0.168ns 0.435** NH4+-N 1 0.213ns 0.577** 0.119ns -0.146ns 0.319** NO3--N 1 -0.086ns 0.696** 0.008ns -0.472** NO2--N 1 -0.168ns -0.189ns 0.474** STN 1 0.688** -0.602** SON 1 -0.399** WFPS 1