%0 Journal Article
%T Detection of Forest Change Using MSS Data<br>应用MSS数字图像处理进行森林资源动态监测的探讨
%A XU Dingcheng You Xianxiang Han Xichun
%A <br>许定成
%A 游先祥
%A 韩熙春
%J 遥感学报
%D 1991
%I 
%X The paper deals with the method of detection of forest change using Landsat MSS data of May, 1976 and October 1985 from frame of Pingchuan County, Hebei Province. The false color composites. (Band 7, 5, 4) were produced. The false color image is useful for manual interpretation of forest Change dynamics. A normalized difference vegetation index (NDVI) and a ratio vegetation index (RVI) were computed for two dates of Landsat data. The difference images for NDVI and RVI were produced by subtracting 1976 from 1985 data. the difference images indicate the great forest change between the above two data. Various standard deviation threshold levels were applied to the difference images to find the threshold value to produce the highest change classification accuracy. Principal components analysis of eight-channel data set consisting of the two landsat MSS data parity to generate the principal components. The first component is related to forest changes. The data classification techiques can monitor the changes of landcovers.
%K Monitor of forest change Vegetation index difference image principal component analysis<br>遥感动态监测
%K 植被指数
%K 差值图像
%K 多时相主分量分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=A41A70F4AB56AB1B&jid=F926358B31AC94511E4382C083F7683C&aid=D91E240C51B5E1F9556B19B039B588D8&yid=116CB34717B0B183&iid=0B39A22176CE99FB&journal_id=1007-4619&journal_name=遥感学报&referenced_num=0&reference_num=0