产业协同集聚对资源型城市可持续发展的影响

通过发展生产性服务业促进产业协同集聚是资源型城市推动产业结构转型升级、实现可持续发展的必要条件。采用2005—2017年115个资源型城市面板数据，实证检验产业协同集聚对可持续发展的作用效果、影响机制和空间溢出效应。结果发现:（1）产业协同集聚对资源型城市可持续发展具有促进作用，并且资源利用效率、环境污染程度、技术进步水平和就业结构优化是产业协同集聚影响可持续发展的重要机制。（2）可持续发展水平的提升不仅受到自身产业协同集聚的正向影响，同时受到邻近资源型城市产业协同集聚的正向溢出效应，并且资源利用效率和技术进步水平是溢出效应的主要作用机制。（3）产业协同集聚的直接效应变动趋势相对平缓，长期具有正向影响，溢出效应和总效应呈现快速上升趋势，近年来的影响相继变为正向。同时，产业协同集聚的溢出效应存在一定的有效距离阈值。据此提出资源型城市增强可持续发展能力的政策建议。

The Impact of Industrial Co-agglomeration on Sustainable Development of Resource

It is a necessary condition for resource-based cities to promote the transformation and upgrading of industrial structure and realize sustainable development by developing productive service industry to promote industrial co-agglomeration. Based on the panel data of 115 resource-based cities from 2005 to 2017, this paper empirically tested the effect, influence mechanism and spatial spillover effect of industrial co-agglomeration on sustainable development. The results showed that: (1) industrial synergy had a positive impact on the sustainable development of resource-based cities. Resource utilization efficiency, environmental pollution, technological progress and employment structure optimization were the influence mechanisms of industrial co-agglomeration affecting the sustainable development. (2) The promotion of sustainable development level was not only positively affected by its own industry co-agglomeration, but also by the positive spillover effect of industrial co-agglomeration in neighboring resource-based cities. The resource utilization efficiency and technological progress were the main channels of spillover effect. (3) In recent years, the direct effect of industrial co-agglomeration was relatively flat, with a long-term positive impact; spillover effect and total effect showed a rapid upward trend, and the impact had become positive one after another. At the same time, the spillover effect of industrial co-agglomeration had a certain effective distance threshold. This paper putted forward some policy suggestions to enhance the sustainable development ability of resource-based cities.