中文摘要：

为了加强兰州市对土地类型和土地利用变化的监测，本文在ENVI和ArcGIS平台上，基于最大似然分类法，利用Landsat TM和ETM＋卫星遥感影像实现了兰州市的土地利用分类，然后据此生成地物类别转移矩阵。最后对1999～2011年的土地利用/土地覆盖从范围和转变的类型进行了时空上的动态分析。

英文摘要：

For the purpose of enhancing the surveying of change of land type and land usage , this paper uses Landsat TM and ETM ＋satellite images to implement classification based on maximum likelihood method for the land usage of Lanzhou city with ENVI and ArcGIS.Then we get a transition matrix of land usage .Finally, a dynamical spatial-time analysis has been made for the Land use/land cover on the perspective of range and transformation types in the study area in 1999-2011 .