LINEAR PROGRAMMING APPROACH FOR OPTIMAL LAND AND WATER RESOURCE ALLOCATION UNDER DIFFERENT HYDROLOGICAL SCENARIOS

This study proposes application of Linear Programming Optimization technique for the optimization of reservoir release followed by optimal allocation of land and water resource for the maximization of net annual farm income from the study area. The study is conducted in Ghataprabha Command area, a significant portion of Krishna river basin situated in Northern part of Karnataka, India. Two distinct scenarios have been considered in the study involving four different hydrological years which is very essential for scheduling of irrigation water supply and better management of existing water resource. Scenario-I representing average weather condition whereas Scenario-II consists of different hydrological years such as dry, wet and normal corresponding to probability of exceedence P80, P20 , P50 respectively. The net benefit incurred from command area for Scenario-I was about 5740 Million Rupees. The results of Scenario-II demonstrated that the net income for dry, wet and normal years was 4201, 5912 and 5386 Million Rupees respectively.