LANDUSE/LANDCOVER AND NDVI ANALYSIS FOR HALIA CATCHMENT

In India though sufficient water is available, its distribution in time and space leaves much to be desired. The water in India is not available at the right place, at the right time, in the right quantity and with the right quality. Added to this, there are severe problems with respect to availability of data for hydrological studies. Landuse and landcover change is scalar dynamic. The change is land cover occurs even in the absence of human activities through natural processes where as landuse change is the manipulation of landcover by human being for multiple purposes- food, fuelwood, timber, fodder, leaf, litter, medicine, raw materials and recreation. So many socio-economic and environmental factors are involved for the change in land use and land cover. Landuse and landcover change has been reviewed from different perspectives in order to identify the drivers of landuse and landcover change, their process and consequences. The primary objective of this paper is to study the landuse/landcover and cropped area changes in a catchment area. To obtain the changes in landuse/ landcover and Normalized Difference Vegetation Index, medium to high spatial resolution multi spectral data provided by remote sensing satellites with sensors MSS, TM and ETM whose acquisition periods are November 1975, November 1989 and November 2001 for the drainage area are obtained and processed with ERDAS Imagine software.