Topographical Position Index Based Terrain Classification and Its Impact on Land Use and Land Cover on Ajodhya Hills Region, (Chotanagpur Plateau) India

Abstract

Nowadays of geospatial semi-automatic computer-based algorithms have been widely used for the analysis of geomorphic landforms. The present study is carried out to classify geomorphic landforms in the Ajodhya hills region of the Chotanagpur plateau using Topographical Position Index (TPI) and to find out its relationship (landforms) with Land Use and Land Cover (LULC) of this region. The study used 11 different TPI values from 10 to 210 with 20 neighborhood cell intervals by using TPI, for the classification of landforms. The Latest Landsat 8 Operational Land Imager (OLI) satellite imagery data have been used to classify LU and LC of the Ajodhya hills region. The results of the study revealed that landforms of the Ajodhya Hill region influenced out of all landforms, the wide valley zone is the dominant landform where maximum LULC classes are observed in the Ajodhya Hills region, which has a significant influence on the LULC over the entire vicinity