Spatial Pattern and Driving Factors of Vegetation Degradation in Beijing-Tianjin-Hebei
LÜ Guo-xu, CHEN Yan-mei, ZOU Chang-xin, FENG Chao-yang, HAO Fang-fang
Journal of Ecology and Rural Environment . 2017, (5): 417 -425 .  DOI: 10.11934/j.issn.1673-4831.2017.05.005