干旱区研究
Effects of Closing Grazing on the Litter Amount in Desert Steppe
CHEN Xiao-ying, SONG Nai-ping, LI Min-lan, WU Ting, CHEN Juan
Arid Zone Research . 2019, (5): 1168 -1174 .  DOI: 10.13866/j.azr.2019.05.14