摘要
以芜湖市作为研究区,以3期12景Landsat7 ETM+遥感影像数据作为数据源,运用ENVI软件对预处理好的遥感影像进行镶嵌、裁剪、监督分类,获得芜湖市土地利用/覆盖变化分类图,并对各类土地面积进行统计分析,找出各类型土地相互转化的关系,分析发生变化的主要原因,为芜湖市的城市规划和土地有效利用提供数据参考。研究结果表明:2005—2014年研究区的地类面积变化明显,发生变化的土地面积约占土地总面积的55.83%;在单一土地利用动态度中,建设用地的年变化率最大,为-17.57%;综合土地利用年变化率为2.62%。指出芜湖市目前正处于规划期,城市的房屋建设正如火如荼地进行,芜湖市的其他用地得到了较大规模的开发与利用。
In this paper, taking Wuhu city as the research area and using remote sensing data image of the third phase 12 Landsat7 ETM＋platform as data source, the author conducted inlay, cutting and supervised classification to pre-processed images by using ENVI software. And, the author obtained classification chart of land use and cover changes, and made statistic analysis on various types of land areas. Then, the author found out the relationship between various types of land conversion,and analyzed main reasons for changes, which provided data references for urban planning and effective use of land in Wuhu city. The results shows that land area of the research area changed obviously from 2005 to 2014, and the land area that changed accounted for about 55.83% of total land area; in dynamic degree of single land-use, the annual change rate of construction land is the largest, which is-17.57%; the annual rate of change in integrated land use is 2.62%. In the end, the author pointed out that Wuhu city is currently in the planning period, the construction of the city＇s housing is in full swing,and other land in Wuhu city has been developed and utilized on a large scale.
作者
杨红琳
YANG Hong-lin(School of Surveying and Mapping,Anhui University of Science and Technology,Anhui Huainan 232001 China)
出处
《科技创新与生产力》
2018年第7期30-32,36,共4页
Sci-tech Innovation and Productivity
关键词
土地利用变化
遥感影像分析
辐射校正
监督分类
芜湖
land use change
remote sensing image analysis
radiation correction
supervised classification
Wuhu city
