Acta Agrestia Sinica
The Spatio-temporal Pattern of Grazing Pressure in the Three-River Headwaters in Qinghai Province from 2005 to 2017
QIAN Qian, ZHANG Xiu-juan, WANG Jun-bang, YE Hui, LI Ying-nian, ZHANG Zhi-jun
Acta Agrestia Sinica . 2021, (6): 1311 -1317 .  DOI: 10.11733/j.issn.1007-0435.2021.06.022