| With a rapid development of regional economy,the Yangtze Delta megalopolis is facing severe problems of regional resources waste and environmental pollution.Regional coordinated development has become the key factor for the formation of the new growth pole in this area.Based on the theory of sustainable development and coordinated development,this paper analyzes the coupling and coordination of economy,resources and environment in the urban agglomeration in the Yangtze River Delta.Finally,the suggestion of sustainable development of economy,resources and environment is proposed.Firstly,on economic resources and environment system related research literature systematically comb,understand the domestic and foreign research present situation and the latest research trends.Then analyze the theory and research methods,clear the meaning and content of relevant to lay a certain foundation for this study.Lastly,building on the scientific and comprehensive nature of the index system,the data availability and stability,the evaluation index system for the ERE system in the core area of the Yangtze River Delta has been established,a coupled coordination model has been established.The new index system which would be used to establish a coupled coordination model is built by selecting the relevant economic,resource and environmental indicators.According to the requirements of Economy-ResourceEnvironment System,this paper chooses the relevant indicators to analyze the coupling and coordination differences of the 16 core cities in the Yangtze Delta.Firstly,indexes are filtered by the correlation coefficient and principal components,and the weight of the index is determined by the entropy method.Then coupled coordination model is established by fuzzy membership function of mathematics and the coupling degree.Lastly,the spatial clustering is discussed by combining the Moran's I statistic and the LISA agglomeration map in the spatial data analysis method.According to the geo-coupled analysis of ERE systems,there is obvious difference in coupling and coordination in all regions,and the phenomenon of global agglomeration in spatial correlation is not obvious.According to the requirements of Economy-Resource-Environment System,this paper chooses the relevant indicators to discuss coupling,coordination and spatial clustering in the Yangtze Delta.The results show that:(1)The developed areas are facing relatively more severe challenges of resource scarcity and environmental pollution.Shanghai belongs to the antagonistic endangered region.Jiangsu and Zhejiang are both antagonistic to the well-coordinated types when they were divided into three categories.When multiple clusters are divided into four categories,except some economically underdeveloped cities where are antagonistic and reluctantly coordinating type,the other area still belongs to antagonistic good coordination type.(2)The overall coupling degree of the Yangtze Delta is not high,where most regions are antagonistic coupling,and the interaction between the three systems in most areas is relatively weak.(3)The coordination values range from 0.30 to 0.89,which indicates the difference is significant while the imbalance is not.There is an excellent coordination center in Changzhou and Wuxi.(4)There are many types of coupling and antagonistic good coordination type takes the most.(5)The Yangtze Delta exists local spatial clustering,but global spatial clustering is not significant.There are some local spatial correlations among the comprehensive indexes,coordination degree and coupling coordination degree of economic resources and environment except for the coupling degree.This means that if the Yangtze River Delta wants to take the intensive development of connotations and the coordinated development of regions,considering the reality of the cities is still the focus of its future development.The overall coordination needs to be remained and strengthened.And the regional integration and development still to be continued... |
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