The Statistical Analysis Of The Growing Size Of Jiuquan-jiayuguan Urban Agglomeration And Research The Feature Of The Spatial Structure

Urban group is a kind of spatial organization in the process of urbanization, is asenior phenomenon of urban agglomeration and diffusion, has become one of theimportant trend of the urbanization of developed country. In twentieth Century80since the1980s, with the implementation of the western development strategy, thewestern provinces of economic growth, at the same time, the city has entered a rapidgrowth stage. Jiuquan-Jiayuguan area in the Central Plains Dynasty is the west gateof the ancient, the Hexi Corridor in the modern West, connecting Gansu province andXinjiang province, it’s Inner Mongolia’s hub, has the advantage of geographicallocation and economic development important, improve Jiuquan Jiayuguan towncluster structure, will better display the urban agglomeration overall economicadvantage, improve urban agglomeration competitiveness, promote the sustainabledevelopment of regional economy.After reading lots of literature, data analysis of concept of urban population aswell as its domestic and international related research, the paper selected topicbackground and the research significance is expounded from two aspects of theoryand practice, after the main method is introduced in this paper introduces the technicalroute. Combined with the actual situation in Gansu province in the nationalfoundation, through the recent meeting of Jiu-Jia area decided, as defined in theJiuquan-Jiayuguan towns group, and described from the general situation of naturalconditions, cultural environment, social and economic development status of the studyarea, as a scientific research paper laid the foundation for. After the statistical analysisof spatial development the spatial structure characteristics,research structure ofJiuquan Jiayuguan town cluster.When analysis scale of the growth,firstly Interpretation the remote sensingimage in the study area by the remote sensing technology, extract the urban land datafrom it,use the GIS technology to analyze the regionalcity expansion and change,thenanalysis the distribution of urbanization and population in this area.It found thatthis area is extensioned by the way of piece sprawl from the center to thesurrounding,and the spindle is the obvious characteristic of urbanization.Above these victories,Combining with the fractal theorycalculate the fractaldimension of urban group space,it found that although the accessibility coefficient is low in individual towns,but distribution in space is more concentrated,this areahave a high concentration throughout the region.