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3 历年发展度、协调度、耦合度的均值变化

Fig. 3 The average changes of development degree, coordination degree and coupling degree