人工草地土壤有机碳组分与微生物群落对施氮补水的响应

徐梦,徐丽君,程淑兰,方华军,卢明珠,于光夏,杨艳,耿静,曹子铖,李玉娜

Responses of Soil Organic Carbon Fractionation and Microbial Community to Nitrogen and Water Addition in Artificial Grassland

XU Meng,XU LiJun,CHENG ShuLan,FANG HuaJun,LU MingZhu,YU GuangXia,YANG Yan,GENG Jing,CAO ZiCheng,LI YuNa

表1 土壤酶测定种类及其底物

Table 1 Soil extracellular enzymes and corresponding substrates

酶 Enzyme 缩写 Abbreviation 底物 Substrate β-葡萄糖苷酶β-glucosidase βG 4-MUB-β-D-glucoside 纤维二糖水解酶 Cellobiohydorlase CB 4-MUB-β-D-cellobioside β-N-乙酰氨基葡萄糖苷酶β-N-acetylglucosidase NAG 4-MUB-N-acetyl-β-D-glucosaminide 酸性磷酸酶 Acid phosphatase AP 4-MUB-phosphate