Evaluating the normalized difference vegetation index using landsat data by envi in Salem District, Tamilnadu, India

The present study provides the Normalized Difference Vegetation Index of the study area. The main aim of this study is to evaluate the vegetation index using Lands at image. NDVI map prepared by using ENVI Image processing software. The study area NDVI map gives the Maximum value of 0.7 and Minimum Value of-0.06. The result depicts following types of vegetation index like Water bodies, Barren and Rocks, Shrub and Grass land, Moderate Green, Very green area, dense forests, Temperature and Tropical Rainforests. The NDVI cover type of water bodies are very less at the same time the Barren areas, Rock surface, shrub and Grass land are mostly occupying the Eastern part of the study area. Remaining cover types are occupying the highly elevated areas.