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5 藏北高寒草地土壤有机质化学组成和酶活性的相关性

Table 5 Relationship between soil organic matter compositions and enzyme activity in alpine grasslands in Northern Xizang, China

化学成分 Chemical composition 蛋白酶 Protease 脲酶 Urease 净氮矿化速率 Net nitrogen mineralization rate 净氨化速率 Net ammonification rate 净硝化速率 Net nitrification rate 烷烃 n-Alkanes 0.45* -0.02 0.63** 0.67** 0.63** 烯烃 n-Alkenes 0.72** 0.15 0.70** 0.83** 0.69** 芳香烃 Aromatics 0.53* 0.16 0.61** 0.80** 0.60** 脂肪酸 Fatty acids -0.13 -0.12 -0.35 -0.33 -0.35 木质素 Lignins 0.17 -0.33 -0.11 -0.02 -0.11 含氮化合物 N-compounds -0.43 -0.09 -0.40 -0.60* -0.39 酚 Phenols 0.27 0.22 0.33 0.60** 0.32 多环芳烃 Polyaromatics -0.27 -0.12 0.03 0.05 0.02 多糖 Polysaccharides 0.30 0.03 0.50* 0.61** 0.49* 萜烯类 Terpenes -0.35 -0.16 -0.49* -0.53* -0.49* 糠醛:吡咯 Furfural:Pyrrole 0.56** 0.12 0.47* 0.62** 0.46* 苯:甲苯 Benzene:Toluene -0.38 0.07 -0.19 -0.41 -0.18 吡咯:酚 Pyrrole:Phenol -0.12 0.26 0.05 -0.25 0.06