Vegetation coverage change remote sensing monitoring of the middle and lower reaches of the Heihe River
HU Jie, JIANG Chengzhen, YANG Yong, HE Xiaofeng, LI Kai
Bulletin of Surveying and Mapping . 2021, (10): 34 -38 .  DOI: 10.13474/j.cnki.11-2246.2021.302