Dynamic Research Of Beijing's Urbanization Process Based On Remote Sensing And GIS

According to a prominent problems of urbanization in China,Beijing as typical of the region to study,outstanding study angle and method comparison.The aim of study is regularly or irregularly to understand dynamic change trend of urban land use,urbanization process dynamic monitoring,With a view to analysis of urban expansion and its dynamics based on land use status,it will certainly Improve capital ecological environment,planning and regulation urban land resources and regional sustainable development,which has important value.Peri-Urban areas of Beijing City as the research core,using remote sensing information is taken as basic,To defined range of Peri-Urban and analysis its method,use of remote sensing(RS) and combined with geographic information(GIS) technology,Analysis of the process of urbanization in Beijing,And Introducing relative change rate and expansion intensity index of landscape ecology, Quantitative Study on urban land migration types and change rate.according to extended spatial differentiation model of each district,Analysis morphology,rate and mode of the urbanization process, study on its driving mechanism by using population,Economic and traffic factors.Analysis of urbanization process in Beijing over the past 20 years,and explore main driving factors.The results show thatThe general trend of the urban land expansion is urban construction land newly added as a process of incremental,Along the outer suburb and exurb districts's binding site with the passage of time,Gradual over form inside to outward,it showed a significant layer cycle structure. Discussion on the urban spatial differentiation show Peri-urban areas in southern,Fengtai district, Chaoyang district and Haidian district Become bctive region and concentration area of urban land expansion,And in most western Mentougou extended slowly,east-west urban,Xuanwu District,Chongwen District is almost no change;Temporal division,development speed of Urban construction land was to accelerate the trend after 1999 to 2004,Finally,factors analysis of the impact of urban expansion,to Population Quantity,the second industry and tertiary industry output value, traffic,socio-economic as factors,study on main driving factor of urban construction land expansion, Development of tertiary Industry and transport become important factor,secondary industry and population quantity takes second place.