Land use land cover change detection analysis in kodjai watershed using remote sensing and GIS

Changes in Land use land cover are a dynamic process taking place on the surface and it becomes a central component in current strategies in managing natural resources and monitoring environmental changes. LULC change detection is the process that helps in determining the changes related with land use and land cover with reference to geo-rectify remote sensing data. This purpose of this study is therefore concerned with identifying the change in land use and land cover detection of the Kodjai watershed in Dapoli, Ratnagiri. To identify land cover changes detection; remote sensing data, satellite imagery and image processing techniques had done within three dates of 2017 and 2024 using Sentinel-2 images having 10m resolution. Arc GIS software had used to identify the changes. The classification had done using seven land cover (dense vegetation, agriculture, settlement, waterbody, fallow, orchards and grassland) class. Pre-processing and classification of the images had analysed carefully and accuracy assessment was tested separately using the kappa coefficient. Tewabe and Fentahun (2020) checked the accuracy of the classification using the kappa coefficient. The result of the study showed that significant change detection had observed during the study period. Settlement and orchards showed an increasing trend of 2.04% and 6.08%, respectively, while dense vegetation, agricultural land and fallow land showed a decreasing trend of 1.22%, 4.64% and 1.36%, respectively. It was also noted that there was no appreciable change in the area under the water bodies and grasslands.