长江中下游水环境跨域治理的社会网络分析

Social network analysis of cross-domain management of water environment in the middle and lower reaches of Yangtze River

长江中下游水环境的修复与保护需要中下游、左右岸、干支流的协同治理,但流域的跨行政区域的特性使得跨域治理更具难度。为了揭示长江中下游水环境跨域治理的联系结构和合作现状,运用社会网络分析方法对20年水环境跨域治理相关府际协议的整体结构、网络密度、凝聚子群等特征进行分析。研究结果表明,长江中下游水环境跨域治理虽已形成复杂交错的整体网络,但各参与主体受空间地理因素影响较大,上海、江苏、安徽三省市在长江中下游水环境跨域治理中处于绝对中心地位。需要建立完善信息共享机制、信任机制、利益补偿机制,以突破空间地理因素制约,提高互助水平,增进地方政府间的合作。

The restoration and protection of the water environment in the middle and lower reaches of Yangtze River require the coordinated management of the middle and lower reaches,the left and right shores and the main and tributaries,but the cross-administrative characteristics of the drainage basin make cross-domain governance more difficult.In this study,we used Social Network Analysis to reveal the link structure and cooperation status of cross-domain management of water environment in the middle and lower reaches of Yangtze River,the overall structure,network density and cohesion subgroups of 20-year water environment cross-regional governance.Although the cross-domain management of the water environment in the middle and lower reaches of Yangtze River has formed a complex and interlaced overall network,the participating subjects are greatly influenced by spatial geography factors.The three provinces and cities of Shanghai,Jiangsu and Anhui are in an absolute central position in the cross-domain management of the water environment in the middle and lower reaches of Yangtze River.It is necessary to establish and improve the information sharing,trust and benefit compensation mechanisms in order to break through the constraints of spatial geography,improve the level of mutual assistance and enhance cooperation among local governments.