马鞍山市土地利用/覆盖变化的遥感分析

Remote Sensing Analysis of Land Use/Cover Change in Ma'anshan City

利用以安徽省马鞍山市为研究区的1995年Landsat-5的TM影像、2006年和2011年Landsat-7的ETM+影像解译结果,获取马鞍山市三期土地利用/覆盖分类图,并基于ENVI图像分析和数理统计方法对马鞍山市1995—2011年土地利用/覆盖变化做定量分析研究,分析各土地利用类型间的相互转化关系,探讨各类面积发生变化的主要原因.结果表明:1995—2011年近16年来,马鞍山市土地利用类型中的建设用地和林业用地所占面积比相对较高;土地利用类型面积变化较大,耕地、林业用地、建设用地和水域面积都呈增加态势,而其它用地面积则大幅减少;综合土地利用动态度为1.75%.

Located in Ma＇anshan city of Anhui Province,this study use interpretation results of the TM image of Landsat-5in 1995 and ETM＋images of Landsat-7in 2006 and 2011.Three land use/cover classification maps were obtained supported by taking these data.Based on image analysis of ENVI and methods of mathematical statistics in 1995-2011,It took a quantitative research in Ma＇anshan on land use/cover change.The research analyzed the conversion of relationship between land use types about area changes and dynamic changes and main reasons for the changes and the results are as follows.From 1995to2011,woodland and construction land were always in dominant position.Great changes had taken place on land use.The increased land types were agriculture,woodland,construction land and water land,while others decreased in Ma＇anshan city from1995 to 2011.The comprehensive land-use dynamic degree was 1.75%.