Research On Economic Gravitational Structure Characteristics And Synergistic Strategies Of Shuangcheng Economic Circle In Chengdu-Chongqing Region

With the proposal and in-depth advancement of the western development strategy,the new pattern of western development is constantly evolving and developing.In recent years,the state has attached great importance to the planning and construction of the Chengdu-Chongqing economic circle and played a supporting role in regional development.Facing the development background under the new situation in my country at the present stage,study the economic gravitational structure characteristics of the Chengdu-Chongqing economic circle in order to accelerate the optimization of the overall regional network space layout,promote the Chengdu-Chongqing economic circle to become an economic and technological center,and build the western region.It is an important growth pole in the region and is of great significance for integrating into the new development pattern of the dual cycle.This paper firstly sorts out domestic and foreign literatures,and establishes an index system of urban economic comprehensive strength according to systematic and scientific principles and index construction basis.Then comprehensively measure the city’s comprehensive economic strength index system,and analyze the spatial and temporal differences and economic center of gravity shift analysis of the comprehensive index,so as to more intuitively describe the changes of the economic comprehensive strength index at different time points.Secondly,the modified gravitational model is used to measure the strength of economic gravitational connection between regions,and the spatiotemporal trend graph is drawn by Arc GIS.Finally,the Ucinet software is used to analyze the social network and deeply analyze the characteristics of the regional economic gravitational structure.The research results show that: First,the overall urban economic comprehensive strength of the Chengdu-Chongqing economic circle continues to improve,and each subdimension is also in a stage of steady growth.The comprehensive economic strength of the central urban areas of Chengdu and Chongqing has developed significantly,while the development of the central and peripheral areas of Chengdu and Chongqing is relatively slow.Second,the economic gravitational structure of the Chengdu-Chongqing economic circle has gradually stabilized from looseness,and the degree of regional integration has been further deepened.There is a clear lack of support,and the situation in 2019 has improved compared to 2009,but it is still in a weak area in general.The dual core has strong economic radiation ability and great influence on the surrounding cities.The impact potential of the marginal areas is relatively small;thirdly,in terms of overall network indicators,the entire network structure is in a dynamic development process from loose to centralized,unstable to stable,and the growth rate of network density has slowed down in each year.Chengdu and the central urban area of Chongqing have always been areas with strong economic influence.The peripheral areas need to rely on external forces or areas that belong to "transit hubs" for communication and development.The continuous expansion of the inner core area indicates that there is a tendency to spread outward,and the current core area cannot meet its own development speed.Finally,according to the results of the model,find out the advantages and disadvantages of regional economic development,give full play to the regional advantages,make up for the shortcomings,and provide relevant government departments with countermeasures and suggestions for reference.