MONITORING OF DEGRADED LANDS IN PADERU MANDAL USING GIS TECHNIQUES

Civil Engineering

Monitoring the degraded lands of Paderu Region is done by using GIS Techniques. To achieve the objectives of the study and monitoring of environmentally degraded lands, multi-temporal Resourcesat-1 LISS III data of 2009-15 acquired during Kharif (Aug –Nov), Rabi (Jan- Mar) seasons were used to derive information on the spatial and temporal variability of different land use / land cover categories. The multi-temporal datasets were geo-referenced with LCC / TM projection and WGS 84 datum. Ancillary data consisted of base details viz., administrative boundaries (state, district, and village and forest boundary), major roads, railway, drainage, settlements, etc. were taken from available sources. Similarly, available ancillary information on forest that was generated earlier was also referred during mapping. The methodology adopted consists of satellite data preparation, interpretation (on-screen visual), and Map- finalization, quality checking of final maps and databases and database organization as per NNRMS standards. GIS, Remote Sensing and Digital Image Processing Techniques were used for the study. The study was carried out specifically for the years 2009, 2011 and 2013. Report of Analysis made on monitoring of degraded lands that are degraded from one form of land to another during the period of 2009-2013 is done by various categories of classification as follows. Major Land of Forest is Degraded and Converted into Built-up of 17.52 Sq. km and to Agriculture land of 9.022 Sq. Km. Fallow Land is changed to Built-up land of 15.23 Sq. Km, to Forest land of 40.66 Sq. Km and to Agriculture of 13.26 Sq. Km.

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