Urban Symbiosis Development Research From The Perspective Of Urban Flow

With the continuous improvement of urbanization level and industrialization level in China,the pattern of urban as a single interest subject has undergone new changes,the regional correlation of urban interactions has been significantly enhanced,the spatial structure of urban areas and the flow of various production factors have been changed,and the urban agglomeration centered on the core city has become the focus of the regional development strategy space,which is of great significance to the coordinated development of the entire region.Therefore,regional planning such as urban agglomerations and metropolitan areas has become an important means of achieving regional policies.As a biological theory that explores how to achieve harmonious coexistence among species,symbiosis theory has been widely used in many disciplines,involving economics,geography,urban planning and other disciplines.Its theoretical system has a positive impact on the research of other disciplines.Therefore,in the context of advocating the concepts of coordination and equilibrium in the new era,the coordinated development of cities has become an important focus of regional research.This paper attempts to introduce the symbiosis theory into the evolution analysis of the spatial structure of urban agglomerations and study the cities of specific regions.The symbiotic development of the group explores the evolution law of urban symbiosis development,reveals the problems existing in the development process,and proposes corresponding measures to provide theoretical basis for the formulation of regional planning.This paper firstly combs the related research of symbiosis theory,grasps the basic theoretical connotation and research methods,sorts out the existing research on urban symbiosis development and inter-city interaction,and analyzes the inadequacies of existing research.On this basis,the research framework of this paper is constructed.Secondly,the theoretical methods involved in this paper are summarized,and the basic concept of urban symbiosis is explained.It is considered that urban groups are similar to ecosystems,and can also constitute a symbiotic system.As a symbiotic unit,cities have symbiotic energy exchanges.By analyzing the intensity and way of symbiotic energy exchange between cities,we can judge the symbiosis mode between cities and analyze the construction of urban symbiosis interface.The situation provides a basis for improving the symbiotic development of the city.Finally,this paper takes Jinhua City Area as the research case,selects the relevant data for 2008-2017,and uses the urban flow intensity model and the gravity model to calculate the urban flow intensity of each city in this decade,and the urban flow intensity based on the city.The interaction relationship is used to discriminate the symbiotic organization pattern of each city in Jinhua City Area.The Euclidean Distance is used to calculate the complementary and competitive relationship between cities,and the symbiotic behavior patterns of each city in Jinhua City Area are discriminated.On this basis,the symbiotic relationship and evolution law of each city in Jinhua City Area are analyzed,and the problems existing in the development process are explored,and corresponding countermeasures are proposed to provide a basis for the optimization of the spatial structure of Jinhua City Area and formulating a regional coordinated development strategy.