Abstract
The Normalized Difference Vegetation Index (NDVI) is important indicators for monitoring of vegetation status. The remote sensing based bio-physical variable maps were used to estimate NDVI in Uben river catchment and command area of Gujarat state, India. Multi date satellite images of Landsat-8 for Rabi season, year 2018-19 were used in the ArcGIS 10.3 software to derive the Normalized Difference Vegetation Index (NDVI). The maximum NDVI in the study area was 0.566 on February 19, 2019.The minimum NDVI in the study area was -0.327 on February 19, 2019. The average NDVI value ranges from -0.132 to 0.368 for wheat crop, 0.092 to 0.294 for coriander crop, 0.098 to 0.204 for cotton crop and 0.083 to 0.103 for waste land.The average NDVI value for wheat and coriander crop was increase from Initial stage to Mid-crop growth stage and then decreased during End season stage. The cotton crop shows higher NDVI value in December i.e. 0.204 then decreased due to harvesting of cotton. The average NDVI values in waste land were less as compared to agricultural land with crop and forest area due to no vegetation and exposed soil.
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