Soil enzyme activities and their influencing factors in a desert steppe of northwestern China under changing precipitation regimes and nitrogen addition
ZHU Wan-Wan, WANG Pan, XU Yi-Xin, LI Chun-Huan, YU Hai-Long, HUANG Ju-Ying
Chin J Plant Ecol . 2021, (3): 309 -320 .  DOI: 10.17521/cjpe.2020.0264