Research On The Spatial Development Path And Planning Mode Of The Fringe Area Of Xi’an Metropolis Under The Background Of New Urbanization

Metropolitan fringe area is the essential “urban”,”rural” transition zone,as well as the main area of urban spatial growth,whose land use landscape and social economy conflict and change fiercely,showing characteristics of transitional,dynamic and staggered,thus forming a region space characterized by “not urban area or rural area,like urban area and rural area,including urban area and rural area.” The new urbanization is efficient,inclusive and sustainable,concentrating on “people”.Whereas,for a long time,in the process of new urbanization,the fringe area of metropolises have exposed problems such as land use conflicts,fragmentation and decentralization of administrative regions,on-way flow of factors,local institutional obstacles and environmental crisis.In this context,it is necessary to summarize the urbanization characteristics,the evolution of space and feature attributes in fringe area of Xi’an city,review of the existing problems and insufficiency,in order to adjust and reconstruct spatial development path,integrate and optimize spatial planning mode,and finally realize orderly,harmonious and sustainable space development.Based on urban planning discipline and a blending of multi-disciplinary perspective of geography,economics,sociology,landscape ecology etc.,this paper inspect the research emphases and contents of the spatial development of metropolitan fringe areas,grasp the new value connotation of urbanization and spatial evolution law,action mechanism,classification methods,planning strategies of metropolitan fringe area.On this basis,based on systematic,hierarchical and multi-scale spatial thinking,and starting from the core concept of spatial planning,the paper constructs the spatial analysis framework under the guidance of new urbanization value,and explores the spatial path and planning mode of the metropolitan fringe area in line with the regional characteristics of Xi’an.First of all,use “fuzzy-identity and accurate-checking” method and the multi-dimensional spatial division method to divide the fringe area of metropolitan.Do the spatial superposition analysis carried out from the three dimensions of society(population)-economy(industry)-space(land use change),and check the boundary gradually by land use form,administrative boundary,constraint bottom line and other factors,then point out that the overall characteristics of the metropolitan fringe area is from “relatively independent urban fringe” to “composite urban fringe”.Second,use the method of “entropy-proportion” to measure urbanization comprehensive level in metropolitan fringe area,and conclude that its urbanization development present multivariate characteristics of “population-urbanization driven,industrial-urbanization faster than landuse urbanization”,”population-urbanization and industrial-urbanization synchronous driven,population-urbanization faster than land use urbanization” and ”population-urbanization and industrial-urbanization driven,industrial-urbanization faster than land use urbanization.” The industrial,population land use urbanization are mainly during the evolutionary phase from medium and high level coordination to extreme coordination.Meanwhile,this chapter summarizes the spatial expansion characteristics from five aspects of quantity,type,region,direction and intensity,as well as the evolution or distribution characteristics of residential,industrial,commercial and ecological space.Third,based on paradigm transformation,spatial logic,spatial process and spatial pattern,this paper summarizes morphological characteristics of fringe new town(district),which is the main form of the urbanization-spatial evolution.On the basis of the division of five types of different types of spatial regions,this paper uses the discrimination method and classification standard of “urbanization spatial attribute-social economic spatial attribute – spatial evolution type attribute” to clarify the comprehensive characteristic attribute of those five types of regions.During the transition from traditional urbanization to the new urbanization process,those 5 types of regional areas take urban renewal,spatial transformation and upgrading,occupation of agricultural space as the leading development path and expose plenty of problems including land use conflicts,administrative fragmentation and decentralization,one-way flow of factors,local institutional obstacles and so on.Fourth,this chapter establish an analytical framework of “driving force(force)– acting factor(carrier)– spatial effect(result)”.From a dynamic perspective,this paper reveals the evolution of institutions,power and capital during the transformation from traditional urbanization to new urbanization.Among them,the system as the driving force changes from institutional barriers,institutional failures and institutional matching to institutional innovation,which has both positive and negative effects on spatial development.Power as the driving force changes to limited local government,market-power-oriented and public-power-oriented.It role in space is reflected in positioning and demarcation,stimulating development and effective construction of space,profit-oriented layout of space development and self-organizing construction of space.Capital as the driving force changes from government capital to social capital and factor capital,which promotes the dissolution,renewal and transformation of space.For a long time,the mechanism of these three driving forces on the space of metropolitan fringe areas is formed by their combination and different types of spatial effects.Under the background of new urbanization,the internal combination of these three driving forces are also in a reciprocal and gaming relationship.Fifth,construct and explain the multi-level and multi-scale spatial development path of Xi’an metropolitan fringe area from the three level of macro coordination,meso regulation and micro reconstruction.The macro-level “coordination” path is to integrate and decentralize the fragmented power space,whose essence is to straighten out the institutional mechanism of the metropolitan area.The middle-level “regulation” path is to coordinate and reshape the new urban and rural spatial relationship,whose essence is to promotes agricultural modernization and defuse risks in space production by bottom-line control method,rebuild ecological civilization and inherit local culture.The micro level is “reconstruction” path,which based on the characteristics of different types of spatial regions,reconstructs the differentiated development path of five different types of spatial regions from the four aspect of clear target positioning,industrial path,population path and spatial path.Its essence is to achieve the coordination of people and land in the metropolitan fringe areas.Sixth,under the dual guidance of path spatial deduction and functional structure optimization,build up the “full network integration” spatial planning mode of metropolitan fringe area.Based on the spatial deduction of the new functional forms and elements proposed by the localization path and the typed path under the constraint conditions,the spatial policy division – dominant functional division – use control unit is divided to supplement and improve the spatial planning content of the metropolitan fringe area.At the same time,extract the functional and structural elements related to statutory planning and metropolitan fringe.With the help of ArcGIS and spatial syntax analysis,depending on the spatial partition,this paper modifies the functional and structural elements of spatial system of the metropolitan fringe area from the three dimensions of ecological matrix,functional patch and development corridor to form a full-network integrated spatial planning mode.