长江经济带城镇化与生态环境耦合协调关联性研究

Research on the coordinated development and correlation of urbanization and ecological environment in cities along the Yangtze River Economic Belt

构建了城镇化与生态环境耦合协调发展评价指标体系,运用耦合协调发展度模型和关联度模型,对2010-2017年我国长江经济带沿线城市城镇化与生态环境耦合协调发展态势和关联性进行分析。结果显示:长江经济带沿线城市协调发展等级类型主要为低度协调和中度协调两类,多数城市呈现为城镇化滞后型,表明制约沿线城市协调发展的主要因素在于城镇化发展程度较低;同时,城镇化与生态环境协调发展呈现由下游城市沿中上游城市下降的空间差异特征,空间城镇化和经济城镇化因子对生态环境发展指数影响较大,生态环境压力和状态因子对城镇化发展指数的影响较为显著。

In recent years,the rapid urbanization of cities along the Yangtze River Economic Belt has also brought more and more pressure on the ecological environment.Therefore,in order to better understand the main characteristics of coordinated development of urbanization and ecological environment.based on the literature review and interactive relationship analysis,the paper constructs an evaluation index system for the coordinated development of urbanization and ecological environment,and the use of coupling coupling and coordinated development degree model and correlation degree model to analyze the coupling and coordinated development trend and correlation of cities along the Yangtze River Economic Belt from 2010 to 2017.The results show that the types of coordinated development of cities along the line are mainly concentrated in low-level coordination and medium-level coordination.Most cities are characterized by urbanization lag,which indicates that the main factor restricting the coordinated development of cities along the line is the low degree of urbanization development;At the same time,the coordinated development of urbanization and ecological environment presents the spatial difference characteristics of"descending from the downstream city to the middle and upper reaches city";Spatial urbanization and Economic Urbanization factors have a greater impact on the ecological environment development index,and the same ecological environment pressure and state factors have a greater impact on the urbanization development index.The research conclusions have guiding significance for the urbanization of the cities along the line and the coordinated development of the ecological environment,and provide decision-making reference for the government to formulate relevant policies.