The Measurement Of Urban Spatial Connection In Lunan Economic Belt

Different scales of spatial linkage study is particularly important,under the background of increasing development of global economic integration, regional integration will continue to strengthen. The spatial connection status of city,which as of today’s social and economic life of the main unit, is directly related to the development of region. To measure the city spatial linkage,it is very meaningful to explore the regional spatial connection pattern.The spatial linkage between cities is that population in the region, materials, technology,information and other elements of the City flow reflects the regional economic space, and traffic flow is the most intuitive expression of spatial linkages. This paper systematically analysed the research progress and value of urban spatial linkage problems at home and abroad.Based on urban flows theory, spatial interaction theory and point axis theory, it chose the Lunan Economic Zone as the study area, used qualitative and quantitative analysis method synthetically, from urban flow and traffic flow of the two perspective, measured the city spatial linkage of Lunan Economic Zone. The main conclusions are obtained through measurement:(1) The urban flow intensity of Lunan Economic Zone is whole low, and only consider the study area, the economic spatial linkage between Jining and other cities is strong, Jining produces strong radiation effects to the other cities around; There is obvious homogeneity between Zaozhuang and Jining in the development of the industry; The City flow intensity gap between Linyi and Jining is mainly manifested in the specialization level of export-oriented departments; Rizhao and Heze has a comparative disadvantage in geographical location, their outside linkage strength is not high.(2)The development of urban comprehensive service function of Jining and Linyi obviously lags behind the development of urban economy; The development of urban economy of Rizhao obviously lags behind the development of urban comprehensive service function; The development of urban economy and comprehensive service function of Zaozhuang and Heze are relatively low.(3) The spatial pattern of Lunan Economic Zone is generally a flat "Z" type of spatial pattern. Heze-Jining is the upper part of the "Z" spatial pattern, Linyi- Rizhao is the lower part,Jining-Zaozhuang, Jining-Linyi and Zaozhuang-Linyi compose the middle part of the flat "Z" spatial pattern. The spatial pattern is based on the close relationship between the county level units at the adjacent parts of the city.(4) We can found the intensity of adjacent city spatial linkage is very high in the city scale.Based On the county scale traffic flow measure, high linkage strength mainly concentrated in between the city area and the local city and county units and different area adjacent to the city county unit. However, the intensity of nonadjacent county is very weak.Lunan Economic zone overall space contact has not yet formed a network of spatial pattern, but between the Jining City and Zaozhuang City has emerged the rudiment of network connections.Through the measure of Lunan economic zone city spatial,we get the link characteristics of the city and county scale.The conclusion explains the linkage of Lunan Economic zone from the macro and micro point of view,and it provides theoretical support to Lunan Economic zone for future city development.