A Statistical Study On The Impact Of Yangtze River Delta Urban Agglomeration Function Division On High Quality Economic Development

China has only 22.1% of the total land area of 19 urban groups,but the population accounts for more than 50% of the total population,and GDP accounts for more than75% of the country.Among them,the population of five large urban groups(Yangtze River Delta,Pearl River Delta,Beijing Tianjin Hebei,middle reaches of Yangtze River and Chengdu Chongqing city group)is over 100 million,with GDP accounting for 48.6%of the country,and urban agglomeration has become a city cluster It is the most potential and dynamic core unit in the national economic development pattern.In March,2014,the national new urbanization plan(2014-2020)approved and implemented by the CPC Central Committee and the State Council,and the key tasks for the construction of new urbanization and urban-rural integration in 2020 issued by the national development and Reform Commission in April 2020,all of the national policies take urban agglomeration as an important carrier of urbanization construction.It is suggested that the comparative advantages of different regions should be given play to to build large and medium-sized cities and small cities The spatial pattern of urbanization with coordinated development of cities and towns forms a high-quality development power system.Therefore,the high-quality development of urban agglomeration has become an important task of the new urbanization construction of the country.However,in the process of rapid development of urban agglomeration,there are still contradictions in urban system,spatial layout and economic division of work cooperation,which greatly affects the process of high-quality economic development.How to give full play to the comparative advantages of cities in the urban agglomeration,coordinate and handle the division and cooperation relationship between central city and peripheral small and medium-sized cities,and promote the city.It is very important to promote the high-quality development of economy in an all-round way.Academic research on the development of urban agglomeration functional division has made some progress.The economic effect of urban agglomeration functional division has been widely recognized by scholars.However,most of the existing researches focus on single visual angle such as economic growth,production efficiency and innovation efficiency,and adopt static research methods,ignoring the time lag and space in the process of its impact The correlation,based on the overall scope of the country,there are many empirical studies,and the regional directivity and pertinence of the conclusions are not strong.Few literatures based on the multidimensional perspective of high-quality economic development,aiming at the typical urban agglomeration,comprehensively and systematically analyze the economic effects of the urban agglomeration functional division from the time dimension and spatial dimension.Under this background,this paper summarizes and summarizes the relevant domestic and foreign research literature.Under the guidance of the theory of industrial division,new economic geography,externality and value chain,the paper explains the mechanism of the impact of urban agglomeration functional division on the high-quality economic development.Based on the actual data,the paper investigates the functional division level of urban agglomeration and the development of water with high quality the spatial difference and the evolution characteristics of time series.At the same time,the paper tests the influence of functional division of urban agglomeration on the high-quality economic development by the method of econometric analysis,and puts forward some policy suggestions for different cities in the Yangtze River Delta urban agglomeration,which provides reference for the realization of high-quality economic development of the urban agglomeration in the Yangtze River Delta.The specific conclusions of this paper are as follows: first,productive service industry is concentrated in the central city,and the "center periphery" functional division structure of manufacturing sector agglomeration in peripheral cities promotes the high-quality development of urban agglomeration economy from five aspects: innovation,coordination,green,opening and sharing;second,the overall level of functional division of urban agglomeration in the Yangtze River Delta is at the top of the country,and gradually forms The spatial pattern of multi-center industry is obvious,and the level of functional specialization is increasing year by year;thirdly,the economic development level of Yangtze River Delta urban agglomeration is in the leading position in China.The internal cities generally show the spatial pattern of "leading in the Middle East,catching up with the North-South edge and lagging behind the west",and there is obvious interdependence in geographical space,showing a significant global spatial set Fourth,the functional division of urban agglomeration in Yangtze River Delta has a significant positive impact on the high-quality economic development.Hefei has a restraining effect on the high-quality economic development due to its industrial development mode and the particularity of its city status;fifth,the functional division of urban agglomeration has a spatial spillover effect on the economic development of neighboring cities,and the functional division of labor has a positive effect on the economic development of neighboring cities The promotion effect of economic high quality development has threshold effect.With the increase of urban scale,its promotion function changes from weak to strong.The research innovation of this paper is mainly reflected in: first,from the perspective of research,from the multidimensional perspective of high-quality development,the paper explores the economic effects of urban agglomeration functional division,and systematically analyzes the mechanism of the impact of urban agglomeration functional division on high-quality economic development,and comprehensively analyzes the heterogeneity of its impact,and expands and enriches the functional division of urban agglomeration and high-quality economic development Second,the research method combines static analysis with dynamic analysis,and analyzes the time lag and spatial lag effect of the model,breaks through the hypothesis limit of the traditional measurement model on the independence of the observation objects,and improves the research depth and scope more in line with the traditional measurement model Third,the research conclusion,according to the different cities in the Yangtze River Delta,the paper explores the Hefei model of the division of urban agglomeration function,enriches and deepens the practical exploration and experience enlightenment of the division of urban agglomeration functions.