长江经济带可持续城镇化状态评估

Evaluation of sustainable urbanization state in the Changjiang River Economic Belt

基于2005—2019年长江经济带116个地市单元的面板数据,从经济、社会、资源环境3个维度构建可持续发展水平评价指标体系,运用熵值法和弹性系数法对可持续城镇化状态进行评估。结果表明:①长江经济带可持续发展整体水平呈上升趋势。3个子系统可持续发展水平也逐步上升,其中经济子系统上升幅度最大,资源环境子系统上升幅度最小。②长江经济带可持续发展水平呈下、中、上游依次递减、局部地区呈“核心—边缘”的空间格局,其空间差异缓慢增大。各地市经济可持续发展水平呈上升趋势,个别地市在城镇化过程中社会、资源环境可持续发展水平有所下降。③大部分地市表现不可持续城镇化发展状态,但表现可持续城镇化状态的城市逐渐增加。④长江经济带城镇化可持续发展主要存在生态环境问题突出、城市子系统发展不协调、区域间发展差距大等问题,需根据不同地市可持续城镇化状态实施差异化的发展战略。

Based on the panel data of 116 cities in the Changjiang River Economic Belt from 2005 to 2019,this paper constructed the sustainable development level index system including economy,society,resources and environment,and adopted entropy method and elasticity coefficient method to assess the sustainable urbanization state.The results showed that:①The sustainable development level in the Changjiang River Economic Belt showed upward trend.The sustainable development level of three subsystems gradually increased,among which the economic subsystem rose the most and the resources and environment subsystem declined the most.②The sustainable development level of the Changjiang River Economic Belt was decreasing in turn from the lower,middle and upper reaches,and some areas were in a“core-edge”spatial pattern.Its spatial difference was slowly increasing.The sustainable development level of economy was on the rise,and society,resources and environment in some cities had declined in the process of urbanization.③Most cities showed unsustainable urbanization,but the number of cities with sustainable urbanization gradually increased.④The sustainable urbanization development in the Changjiang River Economic Belt mainly had some problems,such as prominent ecological environment problems,uncoordinated development of urban subsystems,and large development gap between regions.It was necessary to implement differentiated development strategies according to the sustainable urbanization state of different cities.