Based On RS And GIS In The Main City Of Taiyuan Urban Sprawl And Its Influencing Factors

This article uses the urban area of Taiyuan City as the research area,based on the theory of urban geography,and uses RS and GIS technologies to obtain remote sensing images and data of Taiyuan City in 1996,2006,2016.The changes in the percentage of various land use types in multiple time periods in Taiyuan City,and the use of human-computer interaction interpretation methods to extract the city's geographical information in various aspects of Taiyuan.In addition,the use of statistical methods,supplemented by a number of indicators such as city expansion intensity and urban compactness,studies and analyzes the speed characteristics and direction characteristics of urban expansion in Taiyuan City,and at the same time uses quantitative analysis methods to study the space in Taiyuan City.The trend of dynamic expansion,through the analysis of nature,transportation,policies and other factors,studies the impact of urban expansion and its driving forces,and infers the future urban space development trends and characteristics of Taiyuan City.The results of the study found that:(1)The rapid development of social economy in Taiyuan City has promoted the expansion of the city scale;(2)The expansion space of Taiyuan City has been mainly concentrated in the south,and the expansion to the south has developed rapidly;(3)The expansion of urban space in Taiyuan City.The first is the stretching of the urban framework,and then the continuous improvement of the city's municipal facilities,making the city's internal space continue to be optimized;(4)Taiyuan City's urban expansion is mainly under the constraints of natural conditions,the influence of policy-oriented factors(5)Although the urban expansion of Taiyuan City has relieved the pressure of the city to a certain extent,due to the lack of consideration of the expansion planning and the practical process,it also brought many problems and hindered the development of the city.