Development of land suitability model for irrigation management using remote sensing GIS GPS and field studies a case study of part of Nagarjuna Sagar command area

Abstract

Information has become almost instantaneous. In spite of these relevant changes there are certain basic needs which never change the exploding population and growing needs are creating pressure on the finite natural resource and the un-event distribution of rainfall is adding fuel to the effect. A scientific approach on a holistic manner is necessity today, for the proper monitoring and management of natural resources. The planners and executers at field level are to be provided with the accurate information in all aspects to cater to the demanding needs. An attempt as made in semi-arid tropic area, by availing the high resolution satellite data , implementing GIS and collection of GPS points to assess the suitability pattern and to involve a widely acceptable model to suggest and develop the model suitable for irrigation, the indigenous high resolution data IRS P6 LISS IV MX 5.8 Meter Resolution satellite data are availed for two seasons (Khariff and Rabi) to generate the necessary thematic information which are analysed for the land suitability. Andhra Pradesh, as a one of the major agricultural dependant state in India, faces a number of challenges in the path of land resource development. One of the main causes is absence of perfect digital data base in the form of digital thematic information at large scale levels for decision making process. The present research work emphasizing the power of GIS, Remote sensing and GPS technology which will help in land suitability mapping and modelling various soil, nutrients and land parameters.