GEOSPATIAL ANALYSIS FOR IDENTIFICATION AND MAPPING OF WASTELAND CHANGE IN SRI POTTI SRIRAMULU NELLOR

A thorough mapping of wasteland changes at a regional scale is required for a variety of applications. For spatial planning and management, wasteland data in the form of maps and statistics is required. The current study examines the amount and changes in wastelands in the Sri Potti Sriramulu (SPS) Nellore area from 2006 to 2016. Wastelands were interpreted using Indian Remote Sensing Satellite (IRS) data from the Kharif, Rabi, and Zaid seasons in 2005-06, 2008-09, and 2015-16. Using on-screen visual image interpretation tools in a GIS environment, twelve wasteland groups were discovered and delimited. Wastelands covered around 2433 square kilometres (18.42 percent) in 2005-06, 2304 square kilometres (17.44 percent) in 2008-09, and 2045 square kilometres (15.48 percent) in 2015-16. During the period 2006-16, the amount of wastelands was reduced by approximately 388 square kilometres (2.93 percent ). The area of open scrub, dense scrub, and scrub forest has changed significantly, but sands, barren rocky, and other wasteland categories have changed little. The adoption of different developmental projects can be credited for the reduction in the district's wasteland areas. Watershed development, industrial growth, and the district's industrial corridor influence are among them.

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