近百年中国华北农牧交错带与非洲Sahel 地区环境变化的比较分析

毛睿,龚道溢,房巧敏

Compar ison Analysis of Environmental Changes Between Sahel and Agro- pastor al Zone in Nor thern China

MAO Rui,GONG Daoyi,FANG Qiaomin

地理科学进展 . 2007, (4): 51 -63 . DOI: 10.11820/dlkxjz.2007.04.008