藏北高寒草地土壤有机质化学组成对土壤蛋白酶和脲酶活性的影响

马书琴, 汪子微, 陈有超, 鲁旭阳

Effect of soil organic matter chemical compositions on soil protease and urease activity in alpine grassland soils in Northern Xizang, China

MA Shu-Qin, WANG Zi-Wei, CHEN You-Chao, LU Xu-Yang

表4 藏北高寒草地土壤酶活性和土壤氮转化速率的关系

Table 4 Relationship between soil enzyme activity and soil nitrogen (N) transformation rate in alpine grasslands in Northern Xizang, China

土壤氮转化速率 Soil nitrogen transformation rate 蛋白酶 Protease 脲酶 Urease 净氮矿化速率 Net N mineralization rate 0.75** 0.33 净氨化速率 Net ammonification rate 0.79** 0.37 净硝化速率 Net nitrification rate 0.71** 0.33