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
Chin J Plant Ecol . 2021, (5): 516 -527 .  DOI: 10.17521/cjpe.2020.0169