Change in Vegetation Cover as Affected by Grain for Green Project in Gansu
HU Chun-yan, WEI Wei, WANG Xiao-feng, CHEN Li-ding, CHEN Xiao-ni, JI Yuan-zu
Journal of Ecology and Rural Environment . 2016, (4): 588 -594 .  DOI: 10.11934/j.issn.1673-4831.2016.04.012