中文摘要：

以Landsat MSS/TM/ETM＋卫星遥感影像为数据源,采用决策树分类法提取建设用地、耕地、水体、林地和未利用地信息.通过引入城市扩展强度、扩展速率、重心坐标等指标和运用叠加、转移矩阵分析等方法,研究了新疆喀什市扩展的时空规律和形态特征,并选取社会经济、人口、基本建设投资等驱动因子对城市扩展进行驱动因子分析.结果表明：1972-2010年间喀什市城市用地增长呈明显的加快趋势,城市用地总体扩展速率与强度从1990年开始不断提高.转移矩阵计算表明,1972-2010年间建设用地扩展面积主要是占用耕地来的.研究期间城市重心主要以NW、S、NW、NE方向转移.城市扩展驱动分析可知,经济因子和人口因子是驱动喀什市扩展的主要因子.

英文摘要：

Taking Landsat satellite remote sensing images as data resources and adopting the decision tree classification, the information of construction land, cultivated land, water, forest land and bare land was extracted. By introducing the urban expansion intensity, growth rate, the areal coordinates, and using the transfer matrix analysis method, the spatial-temporal and morphological characteristics of Kashgar City expansion were analyzed. The following main conclusions can be drawn： 1 ） The urban land growth has a pronounced accelerating tendency. Since 1990, the overall expansion rate and expansion intensity of urban land has increased continuously; 2） The areal coordinates of the city has moved mainly towards NW, S, NW, NE; 3 ） Economy and population have be-ome the main driving factors of the urban expansion in Kashghar.