干旱区研究
Effects of nitrogen addition on soil enzyme activities and ecoenzymatic stoichiometry in alpine grassland of the Tianshan Mountains
LE Jiajia, SU Yuan, PENG Qingwen, GENG Fengzhan, HAN Wenxuan, LI Wenli, LI Kaihui, LIU Xuejun
Arid Zone Research . 2020, (2): 382 -389 .