近30 年来青海三江源地区草地退化的时空特征
刘纪远, 徐新良, 邵全琴
The Spatial and Temporal Characteristics of Grassland Degradation in the Three- River Headwaters Region in Qinghai Province
LIU Jiyuan, XU Xinliang, SHAO Quanqin
地理学报
.
2008, (4): 364
-376
.
DOI: 10.11821/xb200804001
