期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B7
页码：1009-1012
出版社：Copernicus Publications
摘要：Desertification is caused by the influence of the climatic, environmental changes and human activities. Its enlargement and reverse leads to not only the changes of spatial structure, scope and environment but also the development of society and economy. Chose TM remote sensing images which had two different temporal phases as data sources. Through data preprocessing and the choice of suitable vegetation index,information of desertification in typical area was acquired. Then, in the support of ARCGIS,monitored the changes of desertification in the typical area. The result shows: From 1995 to 2001, the study area was the development of land desertification state, development area covered 478.10 km 2 , reversed area covered 426.90 km 2 . The development area was 51.20 larger than reversed area
关键词：Desertification; Monitor; RS; GIS; Typical Area
