文章基本信息

标题：Vegetation Cover Annual Changes Based on MODIS/Terra NDVI in the Three Gorges Reservoir Area
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作者：Sun Xiaoxia ; Zhang Jixian ; Liu Zhengjun 等
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：1397-1400
出版社：Copernicus Publications
摘要：Vegetation coverage change is a very important indication of the ecological enviroment change. In this paper, we detected the vegetation cover change by retrieving the fraction of the vegetation coverage, using the Normalized Difference Vegetation Index (NDVI) data from MODIS/Terra imagery in recent years from 2000 to 2006, the period before and after the Three Gorges Dam construction. In addition, the accuracy of vegetation fraction retrieval was assessed by the classification data from SPOT5 images. Based on these results, we analyzed the annual vegetation change quantitatively, and it was shown that the vegetation cover took on a little increase in the Three Gorges Reservoir Area in recent seven years, and the vegetation cover grades was transforming from low coverage to high coverage
关键词：Vegetation; Change; Analysis; Remote Sensing; Multi-temporal; Accuracy