中国欠发达地区资源环境承载力特征与影响因素——以宁夏西海固地区和云南怒江州为例
周侃, 樊杰

Characteristics and influence factors of resources and environment carrying capacity in underdeveloped areas of China
Kan ZHOU, Jie FAN
图12 西海固地区乡镇生态脆弱性与退耕还林格局
Fig. 12 Patterns of ecological vulnerability and conversion of cropland to forest of township in Xiji-Haiyuan-Guyuan area