Fig. 3

The classified maps of the study district for the period (a) 1991, (b) 2001, (c) 2011 and (d) 2023 (this figure generated by the author using ArcGIS version 10.8 (Esri Inc., Redlands, CA, USA; https://www.esri.com/en-us/arcgis/about-arcgis/overview).