| With the rapid development of city-town concentrated areas, some typical metropolitan areas have appeared in Northwest China and have become the core carrier and key motive force of the urban-rural integration; however, domestic research on spatial planning of urban-rural integration is still at the preliminary stage, related research is not fully deep and systemic in the urban-rural spatial matching mechanism,mathematical relations and adjustment technology etc. so it is difficult to meet the theoretical need and practical demand for urban-rural rapid development of metropolitan areas, which also restricts the framework of urban-rural planning method system and influences development process of urban-rural integration in Northwest China. In view of this reason, taking Xi’an metropolitan area as research example and considering coherence of basic theories such as urban-rural planning, landscape ecology and spatial economics etc, this article firstly makes a deeply analysis and summary of spatial characteristics, matching degree and spatial relationship using the combination of theoretical research and empirical research based on the status quo of spatial research.And then, the article refines the suitable spatial pattern of urban-rural integration for Xi’an metropolitan area, and builds planning methods system matching with spatial pattern.Through the above research, the paper draws the following main conclusions.(1) The research summary and research foundation. First of all, the coupling analysis results of urban-rural spatial integration and urban-rural space research of metropolitan area shows the research on urban-rural integration for metropolitan areas will be larger space in theoretical framework, spatial pattern planning content and the planning method innovation etc. Secondly, the basic theories including urban-rural spatial relationship theory, regional spatial pattern theory and urban-rural spatial pattern theory etc and practical experiences and spiration from domestic and foreign typical metropolitan areas. Finally, the analysis and evaluation technology of urban-rural spatial matching degree, the refinement technology integration of suitable spatial pattern of urban-rural integration and the technology on research framework construction can effectively be used for urban-rural space based on different levels.(2) The spatial characteristics and problems examination. Firstly, from the system space, the urban-rural integration in 2012 of Xi’an metropolitan area achieves the level of 63.19%, and be in the basic planning integrated stage of rapid development,urban-rural space accelerates convergence, However, level of economic development,social association, spatial integration and the living standard show certain differences.Secondly, from the type space, the urban-rural ecological space of Xi’an metropolitan area is of low connectivity and poor integrity, ecological patch number s continue to rise and spread degree is generally low lead to landscape fragmentation degree; The production space performance is a big gap between the population distribution share and industrial distribution share of city and suburban, rural space, but the mismatching change rule between the population distribution share and industrial distribution share of three various type of space is consistent, showing "V" type characteristics, the spatial mismatch is the lowest in 2007 year of Xi’an metropolitan area; The matching degree of urban-rural living space is relatively high. At the same time, the realization degrees of each content layer are in good agreement with the degree of each content layer in system space. Once again, the research finds that overall urban-rural space of Xi’an metropolitan area is characterized by "big city driving big rural" and urban-rural spatial level pattern is of obvious differences, At the same time, differences on spatial features and characteristics can be reflected in spatial form, spatial structure, land layout and spatial performance. Finally, the long-term regional disparities lead to urban-rural spatial imbalance and the weak urban-rural spatial connection.(3) The impact factor and dynamic mechanism. The article finds spatial pattern of urban-rural integration is the comprehensive and cumulative result of the optimization of policy system, promotion of economy development, supporting of infrastructure and cooperation of social development. Among them, the optimization system of policy is the core power that the government use administrative power to promote urban-rural integration. Economic development is the fundamental role to promote urban-rural spatial integration based on market mechanism. Infrastructure support is the basic conditions for urban-rural efficient operation, but also the most direct and most obviouseffect; and social development cooperation are the driving mechanisms for the most "soft power" role and continued performance. Then the article constructs the comprehensive mechanism model of urban-rural integration of Xi’an metropolitan area by the application of systematic design and optimization thought.(4) The spatial pattern of urban-rural integration. Firstly, diversified spatial value demand is goal orientation of spatial pattern extraction and optimization. the article set up the sustainable and deal spatial system which is composed of the beautiful ecological space system, high-efficiency production space system, happy life space system and harmonious network spatial system. Secondly, the article reviews urban-rural space responses caused respectively by spatial behavior paradigms including the ecological pattern construction, urban-rural industrial development,infrastructure construction and settlement system optimization by using the analysis framework of "mechanism- behavior- process- pattern" circular chain system. Once again, the article extracts and concludes the spatial pattern of urban-rural integration for Xi’an metropolitan area according to the technology route of "recognition- deduction-matching- correction". The pattern means a dynamic spatial structure regulation and coordination space form which takes the central city as the core, and closely links with the urban area and the new rural community as a free element connected to the town,with the polarization axis in urban-rural area In Xi’an metropolitan area. In essence,the pattern is a complex of compact efficiency, fair- welfare type, dynamic balance of three types of mode, reflects the ideal spatial paradigm of “City Polarization lead, idyllic rural symbiotic, urban-rural organic synergy, ecological network reflect", but also specific spatio-temporal category of Xi’an metropolitan area, the ultimate form of non rural space. Finally, the paper makes a functional zoning of Xi’an metropolitan area based on industry factors and development mechanism, and further refines the spatial pattern of urban-rural integration for 7 type of areas including industry dominated area,agricultural dominated area, tourism dominated area, traffic dominated area, ecology dominated area, science and education leading area, composite function dominated area.(5) The spatial planning methods of urban-rural integration. Firstly, the article regards that planning methods of urban-rural spatial integration refers to the realization of the goal of coordinated development of urban-rural areas, in the integration of urban-rural planning preparation, implementation and management adopted in the process of implementation method, behavior and action guidelines. The selection and system architecture are influenced by urban-rural spatial patterns, realistic problems and development trends of planning method. Secondly, the article constructs regionalplanning method system of urban-rural spatial integration for Xi’an metropolitan area which is composed of dynamic spatial planning methods, real-time implementation methods and efficient planning management approach. Among them, planning method of various space types, different spatial scales and several development stages is the foundation of urban-rural spatial integration planning. Finally, the application of planning methods should focus on regional matching, strengthen regional adaptability and effectiveness, and promote the integrated use of programming method.(6) The spatial planning strategies of urban-rural integration. The article puts forward the planning strategies of urban-rural spatial integration for Xi’an metropolitan areas, including formulating technical guidelines for planning, optimizing planning system, innovating spatial planning management and constructing supporting system.Through the above research, the innovation embodies the following 3 aspects.Firstly, the article tries to propose the URSMP, and constructs research framework of urban-rural spatial integration based on the URSMP and related analysis& evaluation technology, enriching the theoretical system of urban-rural spatial integration.Secondly, the article studies urban-rural system space by using the group analytic hierarchy process(AHP),and makes a measure, analysis and evaluation on urban-rural type space by using urban-rural spatial matching analysis& evaluation methods.Thirdly, the article refines the suitable spatial pattern of urban-rural integration of Xi’an metropolitan area, then makes a functional zoning for urban-rural integration research based on industry factors and development mechanisms. and further extracts the spatial pattern of urban-rural integration for seven type of areas including industry dominated area, agriculture dominated area, tourism dominated area, traffic dominated area, ecology dominated area, science-technology and education dominated area,composite function dominated area. And then the article constructs regional planning method system of urban-rural spatial integration which is composed of dynamic spatial planning methods, real-time implementation methods and efficient planning management approach. |
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