ASSESSMENT OF CHANGE DETECTION AND FORECASTING OF LAND USE LAND COVER IN HEMAVATHI CATCHMENT, KARNATAKA, INDIA

Abstract

Land use and land cover assessment, combined with change detection establishes a dynamic component of environmental monitoring and supervision. It includes study of distribution and dynamics of various land use and land cover types within a region throughout the time. In this study, the area is categorized into five classes namely forest, cultivated land, uncultivated land, built-up land and water bodies. The assessment is carried out for the years 1990, 2001, 2013 and 2023 using Landsat satellite image by performing supervised classification. The accuracy assessment with reference to ground truth observations of google earth is investigated. The overall accuracy for year 1990 is 94.20%, for year 2001 is 90.00%, for year 2013 is 92.80 % and for year 2023 is 91.04%, the value of kappa coefficient for year 1990 is 0.93, for year 2001 is 0.88, for year 2013 is 0.91 and for year 2023 is 0.89. Land use land cover is predicted for Ashwini B, Shivakumar J Nyamathi https://iaeme.com/Home/journal/IJCIET 52 editor@iaeme.com year 2030 and 2035. In the forthcoming scenario, the converted region is distributed to uncultivated land and built-up land classes. Subsequently, decision-makers are advised to take necessary measures to preserve agricultural land from changes, ensuring the sustainability of land.