国土资源遥感Issue(2)：115-118,4.
基于MODIS的干旱区植被覆盖度反演及植被指数优选
Remote Sensing Inversion of Vegetation Coverage and Optimization of Vegetation Index Based on MODIS Data in Arid Area
摘要
Abstract
To further understand the ecologic restoration level after water supplying, the authors studied vegetation coverage (Fv)in the water supply area of the lower reaches of the Tarim River. Correlation equation and twodimensional scatter plot between Fy and vegetation index (Ⅵ) could be obtained based on MODIS data by constructing a variety of Vis in combination with measured Fvs, and the value of Fv could be figured out based on the relevant equation. The results show that there exist good correlations between the Vis such as NDVI, MSAVI,SAVI and EVI and Fvs on the basis of MODIS data. With these Vis, the inversion accuracy of the Fvs in the order from higher to lower is NDVI, EVI, MSAVI and SAVI. The authors suggest using MODIS data to monitor vegetation change in the add desert area,with the optimal choice of Ⅵ being NDVI.关键词
塔里木河下游/植被覆盖度/植被指数/MODISKey words
Lower reaches of the Tadm River/ Vegetation coverage(Fy)/ Vegetation Index(Ⅵ)/ MODIS分类
信息技术与安全科学引用本文复制引用
郭玉川,何英,李霞..基于MODIS的干旱区植被覆盖度反演及植被指数优选[J].国土资源遥感,2011,(2):115-118,4.基金项目
国家自然科学基金项目(编号:40961027)和水利部公益项目(编号:200801050)共同资助. （编号:40961027）
