Spatial And Temporal Response Between Industrial Agglomeration And Ecological Environment In The Yangtze River Delta

With the rapid economic development of Yangtze River Delta urban agglomeration,the contradiction between industrial development and ecological environment is increasingly obvious.Under this background,it is particularly important to explore the relationship between industrial agglomeration and ecological environment.The research mainly takes 26 cities in the Yangtze River Delta Urban Agglomeration as the research area to carry out the research on the temporal and spatial response relationship between industrial development and ecological environment,so as to provide policy suggestions for promoting the coordinated development of ecological environment and industry in the Yangtze River Delta urban agglomeration.Firstly,This paper analyzes the spatial-temporal characteristics of the industrial structure,agglomeration level and ecological environment of manufacturing and producer services in the Yangtze River Delta urban agglomeration.Secondly,It analyzes the spatial-temporal response relationship between industrial agglomeration and ecological environment by constructing a spatial Durbin model.Finally,It takes eight cities along the Yangtze River as a typical area to analyze the spatial-temporal response relationship between economic growth and ecological environment.Research shows:(1)The results show that the proportion of the tertiary industry in the Yangtze River Delta urban agglomeration is significantly higher than that of the secondary industry;the agglomeration level of producer services shows an increasing trend in time and a decreasing feature in space;the agglomeration level of manufacturing industry shows a fluctuating trend of first increasing and then decreasing in time and a scattered distribution feature in space;among them,Anhui is undertaking the industrial transfer of Jiangsu and Zhejiang on a large scale,especially the manufacturing industry The manufacturing agglomeration level of cities in Wanjiang City belt is particularly prominent.(2)The air quality in Jiangsu is poor,and the acoustic environment is good.The excellent rate of air in Zhejiang and Shanghai is good.The solid waste emissions of 13 prefecture level cities in Jiangsu,Hefei and Tongling are high,but the overall ecological environment is gradually improving.(3)The results show that population size,per capita GDP,the proportion of the secondary industry,the level of manufacturing agglomeration and industrial collaborative agglomeration have significant spatial spillover effects.Improving these aspects will help to improve the quality of ecological environment and narrow the gap between regions.(4)There are significant differences in the industrial structure and location advantage of manufacturing industry among the eight cities along the Yangtze River in Jiangsu Province.The contribution effect of Southern Jiangsu is more obvious than that of Central Jiangsu,but the effect of location advantage of service industry is not strong.The chemical industry parks and enterprises along the river are mainly distributed along the river bank.The environmental quality of industrial solid waste is outstanding,the air quality is average,and the water environmental quality continues to improve.There are great differences among regions,and the overall regional ecological environment is good.On the whole,the industrial development of the Yangtze River Delta urban agglomeration tends to the development of service industry from 2013 to 2018,the overall industrial agglomeration level is on the rise,and the ecological environment quality has improved significantly.Population size,per capita GDP,the proportion of the secondary industry,the level of manufacturing agglomeration and industrial collaborative agglomeration have spatial spillover effects on the level of Eco-environmental pollution.It is suggested to effectively control population and improve science and technology to improve the quality of eco-environment in various regions.