Abstract:

Most rural residential areas in plain are centralized in China.Different with those rural residential areas,the rural residential areas in Three Gorges reservoir area are smallscale,highdensity and very scattered,which form the unique landscape just like stars in sky.The emigration areas of Yubei,Wanzhou and Zigui were chosen as the typical regions of Three Gorges.The method that combines Objectoriented classification and supervised classification was used in the paper to extract the information of rural residential areas from highresolution remote sensing data.On the basis of the classification result,the paper made use of geographic information system (GIS) technique to analyze rural residential areas distribution characteristics and the factors that can affect rural residential areas distribution such as elevation,slope,aspect,road,water source,etc.Moreover,the paper learned from rural land evaluation method,and made use of multiindex integral evaluation method combing with analytical hierarchy process (AHP) to get the human settlement environment suitability evaluation map.The result shows that it exists evident spatial distribution law between rural residential areas and the impact factors such as elevation, slope and aspect,etc.The research on landscape of rural residential areas and human settlement environment suitability evaluation can give support to the government for taking measures on rural residential areas planning.