Study On Spatial Optimization Strategy Of Urban System In Yangtze River Delta

With the development of the trend of economic globalization and regional integration,China has entered the rapid development stage of urbanization.Urban agglomeration,as a mature stage of urbanization development,can effectively exert the benefit of space agglomeration,optimize the allocation of resources,and drive the development of regional economic integration.The urban system is a collection of cities in the region,with the rational scale structure,different industrial function and the scientific and orderly spatial distribution,the urban system spatial optimization is advantageous to the enhancement region overall comprehensive competitiveness.With the strongest economic strength,the highest level of innovation,and the fastest urbanization,the Yangtze River Delta has an important strategic position in the National modernization construction and the omni-directional opening-up pattern,and the construction of a reasonable town system has significant significance for the benign development of the future region.Based on the related theories of urban agglomeration and city system,this paper makes a comprehensive analysis of the advanced experience of the world-class urban agglomeration.On the basis of fractal theory,with the help of GIS software,this paper analyzes the present situation of the Yangtze River Delta town system by using the modern mathematical model,and obtains a series of problems,such as unbalanced regional development,the convergence of urban function structure and the lack of small town development in the Yangtze River delta.According to the above analysis results,this paper puts forward the idea of overall optimization of urban system in Yangtze River Delta,insisting on people-oriented,constructing whole-region town system,promoting industrial upgrading,speeding up the adjustment of city function,optimizing spatial layout and forming network spatial pattern.Specifically,at the scale structure level,the rational layout of large and medium-sized cities to promote regional balanced development,at the functional structure level,to improve the urban industrial Division of labor,to achieve the development of differentiation,the spatial structure of the city to enhance horizontal links,improve the network of traffic facilities.