The Characteristics And Influencing Factors Of Urban Network In Middle Reaches Of Yangtze River

With the rapid development of rapid transportation such as high-speed rail and the rapid changes in Internet information technology,the flow of elements between cities has become more frequent and the links between cities have become closer.The"flow of space" makes the "central place" urban system from the top down gradually dissolve,and the distributed and flat urban network structure begins to appear.Thanks to the development of data mining technology and the emergence of relational big data,urban networks have become a hot topic in urban research in recent years.To sort out the context and basic research system of urban network research.Urban network research has changed from research based on "attribute data" to research based on "relational data",and the models and methods of urban network research have grown to maturity.However,most of the existing researches are empirical researches.They are immersed in grand narratives and feature analysis,lack of in-depth research on the factors and forming mechanisms of urban networks,and lack of thorough theoreticalanalysis based on micro-perspectives.This article takes the middle reaches of the Yangtze River as an example to conduct an empirical study of urban networks.Based on the perspective of Homo Urbanicus,a multivariate linear regression model and Logit regression model are used to explore the influencing factors and forming mechanisms of urban networks and to study two coreissues:First,at the "individual" level of cities,why some cities have a high degree of network connectivity,and some cities have a low degree of network connectivity?What are the influencing factors and the formation mechanism of the city’s gross network connectivity?Secondly,at the level of " city groups",why do some cities have a high degree of inter-city connectivity and some cities have a low degree of inter-city connectivity?What is the influencing factor and forming mechanism of the inter-city connectivity?Based on the above research background and research issues,this paper first conducts an empirical study of urban networks in the middle reaches of the Yangtze River,and discusses the characteristics of urban networks in the middle reaches of the Yangtze River.Then,the research on the influencing factors of related networks is carried out from two levels:(1)At the "individual city" level,the general linear regression model is used,and the element classification method of human settlements science is used for reference.From nature,humans,society,housing,and network,In these five aspects,the influencing factors of "the total degree of network connectivity"are studied;(2)At the "urban group" level:from the "key scale","space-time distance","functional complementarity","organizational and institutional factors" In four aspects,the influencing factors of "inter-city connectivity" were studied.This paper finds that most urban networks in the middle reaches of the Yangtze River are concentrated within the province.Inter-provincial cities are less related,connectivity between the provincial capitals and cities outside the province are the main linkages.Provincial capitals play the role of "internal linkages" and "foreign linkages".The "provincial administrative boundaries" have a rather constraining effect on the urban connectivity.The influencing factors and forming mechanisms of urban networks include two aspects:"inter-city relevance" and "general urban relevance":"key scale","space-time distance","functional complementarity" and ’organizational and institutional factors" are influencing cities.In the network age,the urban network in the middle reaches of the Yangtze River still shows significant distance attenuation characteristics;"natural factors","human factors","social factors" and "shells" "Factor elements" and "network elements" all have a significant impact on the "city gross connectivity." The "Homo Urbanicus" theory based on the "Urban Total connectivity"interpretation framework includes three processes,namely(1)typical human settlements provide all kinds of spatial contact opportunities;(2)typical Homo Urban icus rational pursuit and choice of spatial opportunities.Promote the flow of factors;(3)All kinds of flow elements constitute a city network,and the characteristics of urban entities affect the overall degree of urban connectivity.This article is based on the " Homo Urbanicus Theory" and explains the formation mechanism of urban networks.Urban networks are formed by the flow of corporate organizations,funds,information,and people.However,the essence of all flow elements is " Homo Urbanicus." Urban networks are the elements of " Homo Urbanicus," which are formed by the flow and interaction between cities.of.Urban networks appear to be networks between cities,but they are essentially networks of "Homo Urbanicus." The "Homo Urbanicus Theory" believes that "Homo Urbanicus"has always pursued maximum space contact opportunities with minimal effort.This is the process in which "Homo Urbanicus" pursue space access opportunities rationally,forming associations and contacts between cities and shaping the urban network.Pattern.The " Homo Urbanicus Theory " effectively interprets the underlying logic in the process of urban network formation.Based on the research results,this paper puts forward proposals.Firstly,the "flow fo space" is used as the guide to compile the regional planning and recast the main development axis in the middle reaches of the Yangtze River.Second,in the network age,the priority strategic choice of the urban development is to enhance "connectivity"and integration.The urban network promotes its own development by strengthening its external links.Third,it optimizes key elements to increase the overall degree of urban connectivity.Fourth,it removes institutional barriers that affect urban linkages and promotes economic regional development.