近30年来长江源区与黄河源区土地覆被及其变化对比分析
刘璐璐, 曹巍, 邵全琴

Different Characteristics of Land Cover Changes in Source Region of the Yangtze River and the Yellow River in the Past 30 Years
Lulu Liu, Wei Cao, Quanqin Shao
图1 研究区高程
Fig.1 Elevation of the study area