Land Use / Land Cover studies of some parts of Mogamureru River basin, Kadapa, by using Geospatial Techniques

Abstract

Land use/land cover (LULC) pattern of a region is an outcome of natural and socio-economic factors and their utilization by man in time and space. The increase in density of population is directly proportional to the land use/land cover. The present study shows the spatio-temporal dynamics of land use/cover an integrated survey based on satellite image interpretation corroborated with limited field checks was carried out with a view to assess the natural resources and environmental potential zones of some parts of Mogamureru river of Kadapa district, Andhra Pradesh falling in Survey of India Toposheet No.57 J/07. Land use/land cover map was prepared in Arc GIS 10.4, ERDAS Imagine 2014 through visual interpretation of IRS P6 LISS-III data and multi-temporal of the area. The area in terms of LULC can be divided into following classes: Barren land, fallow land, forest, built-up land, agriculture land and water bodies. Landsat 8 satellite imageries of two special time intervals, Landsat 8 thematic mapper (TM) of 2010-2011 have been
obtained via global land cover facility site (GLCF) and earth explorer website and quantified the changes in the year 2010-11. Supervised and unsupervised type methods have been employed using most chance techniques in ERDAS Imagine 2014. The images of the area have been categorized into six exceptional classes, specifically forest, barren/wastelands, built-up, water bodies, agriculture and fallow land. The outcomes indicate that over the past year, barren/waste land, built-up land and fallow land have been changed the total geographical area