GIS Based Sustainable Groundwater Management Approach for Irrigation

Abstract

This research was conducted in Nganjuk district, East Java province, Indonesia. GIS and remote sensing were used to analysis land use, digital elevation model and hydrological data. Water balance analysis was conducted to estimate annual recharge and withdrawal of groundwater. The spatial database for distribution of wells was developed. The exploitation of groundwater for irrigation in dry season was analyzed. The estimation groundwater recharge showed the irrigated area has surplus recharge shallow groundwater. The irrigation well density analysis showed that irrigation wells were used in DS2. A water management plan for sustainable groundwater use was developed based on spatial distribution wells and water balance.