| With the speeding up of the regionalization process,information technology in the virtual and the real mixed with high fast comprehensive transportation system,the impedance greatly narrowed the space and time cost,people,goods,information,funds and other elements in town and the increasingly frequent flow between urban and rural,between organization and networked,horizontal space.The network logic based on the perspective of "flow space" is in line with the realistic trend and development demand of the network and systematization of urban and rural development.Fuping County is located at the edge of xi ’an,a large city.The trans-regional and trans-level migration of urban and rural population leads to a complex network relationship rather than a traditional "city-town-village" hierarchical relationship,which needs to be guided by a theory and method.At the same time,it has become a very important means to carry out quantitative analysis and research on urban-rural spatial correlation based on big data relational data.Therefore,under the background of xi ’an metropolitan area construction and rural revitalization,it is particularly urgent to clarify the correlation characteristics of fuping county’s urban network with the outside and urban-rural network pattern characteristics within Fuping County based on factor flow big data,which is of great significance to its future spatial network and urban-rural integration development.In this background,this article,based on the analysis framework of "flow space",in fuping as the research object,using the mobile phone signal data representation and simulation of urban and rural population flow to build towns and correlation between urban and rural network,and by using statistical analysis and social network analysis method,to fuping and pattern of urban-rural network characteristics of external and internal research.On the one hand,on the scale of Greater Xi ’an,the intensity and spatial distribution characteristics of people flow connection between Fuping County and its area with high social and economic connection are analyzed.On the other hand,on the scale of county,town and village,the structural characteristics of urban and rural networks in Fuping county are systematically analyzed from three perspectives,namely,hierarchical structure,spatial structure and nested characteristics,by using network density,centrality and condensed subgroup.In addition,this paper analyzes the influencing factors and dynamic mechanism of the urban-rural spatial correlation in Fuping County,and analyzes the trend of the influencing factors in the future,and puts forward countermeasures for the future urban-rural network development in Fuping County from three aspects of urban-rural system,spatial structure and functional division.The study shows that Fuping county has formed a close urban connection with the surrounding counties,which reflects the social and economic characteristics of integrating into "Greater Xi ’an".The development degree of urban and rural network within the county is low,which is in the early stage of network development.It has the centripetal vertical connection and forms the typical "core-edge" structure with the central city as the core.It also contains multi-center and multi-directional network connections,forming an unbalanced distribution pattern of "sparse north and dense south".At the same time,it has the characteristics of local agglomeration,and geographically adjacent villages and towns form close groups.On the one hand,the hierarchical system based on administrative levels has changed,and the status of some villages in the urban-rural network is much higher than that of some towns;On the other hand,the law of population gradient flow has been broken,and the cross-level flow of population deconstructs the hierarchical relationship of town and village space,which is manifested as the horizontal multi-directional connection of network.Based on this,the spatial networking model from "tree hierarchy" to "network association","closed hierarchy" to "embedded open","regional division and governance" to "industrial collaboration" is constructed,in order to provide useful experience for other similar urban and rural development. |