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4 国家级贫困县环境要素约束类型分布
Fig. 4 Distirbution of types of environmental constraints of national-level poverty counties