The Study On Driving Force Of Spatial Extension Of Hexi Corridor City

With the implementation of a series of urban economic development and accelerate urban development policies, spatial form of the city’s most dramatic changes, mainly in the evolution of urban expansion and the internal structure of the external space. Urban spatial expansion in the urban space is essentially dynamic action within and outside the movement, divided into epitaxial type and content type in two ways. Under the effect of different driving forces of urban spatial expansion presents a different way, speed, and many cities have different effects on the social, economic and so on. This paper selects five located in Gansu Province, a representative of the rapid expansion of urban space is currently in the process of change urban centers, the expansion of its urban spatial and temporal variations, mode characteristics, dynamic mechanism and a comparative study of the combined effects of power, not only can Its clear the stage in the urban development process, but also from the comparative commonness and features found to predict the development trend in the future of cities and urban spatial development in Hexi Corridor oasis make useful countermeasures and suggestions.Firstly, at home and abroad on urban spatial expansion theory, urban spatial expansion characteristics of and driving force were reviewed and summarized in this paper to determine the characteristics of urban spatial expansion and the driving force of the basic framework.Secondly, through a comparative analysis 2004-- During the 2014 urban spatial expansion process in Hexi Corridor, models, features and temporal variations, using qualitative and quantitative, inductive and deductive and GIS technology and statistical analysis method of combining clear the city the mode of action of economic, social, investment and other factors, is the foundation behind the dynamic mechanism draw.Again, according to the spatial expansion factor interrelated, mutual restraint, interactive role in a mutually reinforcing relationship, forming a dynamic mechanism of urban spatial development of the Hexi Corridor. Then the combined effect of lower power, urban spatial expansion of Hexi Corridor trajectory analysis, combined with space under the Institutional Change mechanism to expand the industrial, residential and public service space to expand the micro-level mechanisms and the common law.Finally, through the combined effects of dynamic development mechanism and trends analysis, to explore the city Hexi Corridor in the future and the development of urban spatial evolution process of urban space development, mode, speed and changes in urban spatial structure, with theoretical models and scenarios dynamic resistance variable factor model scenarios predict, the corresponding spatial development strategy.