A Study On The Spatial Pattern Evolution Of Rural Settlements In Boutou Main Districts,urban Fringe(2004-2018)

With the continuous acceleration of the urbanization process in China,in the process of urbanization development,the urban fringe will appear in the urban spatial structure as a transitional space.The urban fringe area is the connection area between the urban core area and the rural hinterland,and it is the region with the fastest change rate and the greatest change degree in the process of urban expansion.However,rural residential areas in urban fringe areas have certain differences from traditional rural residential areas due to their geographical location,so the way of their development and evolution also has its own unique laws.Baotou city as the main development of the central region of Inner Mongolia,is a typical industrial city in transition,at the same time the urban development and planning is different from other type single center spread of the city development pattern,but from the "single center towns" to "two district in one city" to "integration" mode of development,thus its urban development has certain characteristics,leading to the edge of the area development,and the interior of the development of rural settlements has uniqueness.Therefore,this paper takes the main urban areas(Kundulun district,Qingshan district,Donghe district,Jiuyuan district,Rare earth high-tech zone)of Baotou city from 2004 to 2018 as the research scope to study the evolution characteristics of its fringe areas,the evolution characteristics of rural residential areas in the fringe areas,and the influencing factors.Because the development of the fringe area is inseparable from the expansion of the city as a whole,this paper firstly briefly summarizes the overall development process of the urban space in the main urban area of Baotou city,understands the development process of the main urban area of Baotou city,and lays a research foundation for the definition of the fringe area.Then get corresponding in 2004,2010 and 2018 remote sensing image and inlay,correction,such as pretreatment,and then through the maximum likelihood method for remote sensing image can be divided into urban land,land,water and other land,then heavy classification for urban land use map,and then on the basis of the urban land distribution,using natural segmentation point method of three phase of Baotou city fringe area defining,get Baotou city in 2004,2010 and 2018,the main scope of fringe area;Next in Baotou city fringe area is defined on the basis of the use of landscape pattern index,the buffer analysis,overlay analysis and other methods of Baotou city fringe area in quantity,space extension type,the main direction,contour shape,the author analyzes the characteristic changes in the landscape pattern index,calculated the Baotou city fringe area evolution characteristics.On the basis of the evolution of the marginal areas,the data of rural residential areas in the marginal areas of the main urban areas of Baotou city were extracted,and the characteristics of the spatial pattern evolution of rural residential areas in the marginal areas were analyzed and studied.By means of quantitative analysis,this paper analyzes the quantity,scale,spatial distribution pattern,density and the changes of the overall spatial scale of rural residential areas in the marginal areas,and obtains the evolution characteristics of the spatial layout of rural residential areas in the marginal areas.Then starting from the four aspects of physical geography,social economy,location and policy system,the paper analyzes its influence on the development and evolution of the spatial pattern of rural residential areas in the fringe area of the main urban area of Baotou city.Finally,based on the development characteristics of the rural residential areas and the fringe areas of the main urban areas in Baotou city,the future development of the two areas is forecasted,and based on the theory of resilient city and the influencing factors of the development of rural residential areas in the fringe areas,the development of rural residential areas in the fringe areas of the main urban areas in Baotou city is proposed.