supported by the National Natural Science Foundation of China (Grant nos. 41176171 and 41076124);the Specialized Research Fund for the Doctoral Program of Higher Education (Grant no. 20123402110026)
Soil enzyme activities can be used as indicators of microbial activity and soil fertility. In this paper, the activities of invertase (IA), phosphatase (PA) and urease (UA) were investigated in tundra soils coll...