黄河流域地级城市土地集约利用效率与生态福利绩效的耦合性分析
徐维祥, 徐志雄, 刘程军

Coupling analysis of land intensive use efficiency and ecological well-being performance of cities in the Yellow River Basin
XU Wei-xiang, XU Zhi-xiong, LIU Cheng-jun
图5 耦合度的变异系数分布特征
Fig. 5 Distribution characteristics of the coupling degree based on coefficient of variation