[an error occurred while processing this directive]
黄河流域沿线城市绿色发展效率时空演变及其影响因素
岳立(), 薛丹()
Spatiotemporal change of urban green development efficiency in the Yellow River Basin and influencing factors
YUE Li(), XUE Dan()

图1. 2005—2017年黄河流域绿色发展效率趋势图

Figure 1. Trend of green development efficiency in the Yellow River Basin, 2005-2017