流域“环境——经济——社会”复合系统耦合协调时空分异研究——以金沙江为例

Spatial-Temporal Differences of Coupling Coordination of “Environment-Economy-Society” Composite System in River Basin: A Case Study of Jinsha River

以流域为视角,构建"环境—经济—社会"复合系统耦合协调评价指标体系,采用耦合协调模型分析2001—2016年金沙江流域"环境—经济—社会"复合系统耦合协调度演变趋势,并结合GIS和泰尔指数分析其空间异质性。结果表明:(1)从时序角度看,金沙江流域"环境—经济—社会"复合系统耦合协调度整体呈波动上升态势,协调类型实现濒临失调衰退至良好协调的逐步升级;(2)从空间差异看,金沙江流域耦合协调状态区域差异明显且组内非均衡性显著,耦合协调类型呈现三角格局、半包格局、中心—外围格局、西北—东南格局的依次演化进程。建议金沙江流域走全域绿色发展之路,高效引领长江经济带高质量协调发展。

From the perspective of river basin, the "environment-economy-society" composite system coupling coordination evaluation index system was constructed. The coupling coordination model was adopted to analyze the evolution trend of the"environment-economy-society" composite system coupling coordination degree in Jinsha River Basin(JRB) from 2001 to2016, and the spatial heterogeneity was analyzed by GIS and Theil index. The results showed that:(1) From the perspective of time sequence, the coupling coordination degree showed an general rising trend with the type of coupling coordination upgraded from threatened recession to good coordination in JRB.(2) From the perspective of spatial differences, the coupling coordination state of JRB had obvious regional differences, and the interior imbalance in the group was remarkable. The types of coupling coordination showed a successive evolution from triangular pattern, semi-encirclement pattern, center-periphery pattern to northwest-southeast pattern. It was suggested that JRB should take the road of global green development and lead the high-quality and coordinated development of the Yangtze River economic belt with high efficiency.