摘要
以云南楚雄青山咀水库库区及周边为研究区,在分析2002年9月和2004年7月等时相的LandsatETM+遥感图像的基础上,通过不同波段组合,以及归一化差异指数(NDVI)的应用,在建立一定精确的分类模板的基础上,采用最大似然法执行监督分类,得到了具有较高精度的分类结果,并对其数量和空间特性进行了分析。讨论了30m分辨率的陆地卫星影像在水库建设前后对水库周边生态环境监测中的应用及不足。
For an example of area and its surroundings of Qingshanzui reservoir in Chuxiong as research area, on the basis of setting up a precise model after analyzing Landsat ETM+ remote sensing image in Sept. 2002 and Jul. 2004, combining different wave bank, and making the maximum likelihood to carry out supervising and classifying, a more precise classified result was obtained, analyzing the amount and spatial characteristic of it as well. At the same time, the effect and drawback of Land-satellite image with thirty-meter distinction which observing the ecological environment of surroundings of the reservoir was discussed in this paper.
出处
《地矿测绘》
2005年第1期7-9,共3页
Surveying and Mapping of Geology and Mineral Resources
关键词
监督分类
土地利用及覆盖
遥感技术
生态环境监测
水库周边
supervised classification
land use and vegetation
remote sensing technology
ecological environmental monitoring
surroundings of reservoir
