REGIONAL WATER MANAGEMENT MODELING FOR DECISION SUPPORT IN IRRIGATED AGRICULTURE

Development of an integrated water management model combining unsaturated and saturated flow models and a groundwater simulation model as a tool for decision-making in order to improve irrigation in the semi-arid area of Haryana (Northern India) faced with salinity problems. The model was used to study the long-term impact to the water table depth and to the canal irrigation system. The water supply according to demand strategy was slightly more effective in reducing aquifer recharge than the water pricing intervention.