Impacts of the exploitation and use of water resources to groundwater hydrology and saltwater intrusion in the regional aquifer of Phu Quy island, Binh Thuan province

Abstract

       Phu Quy Island of Binh Thuan province is one of the major islands of Vietnam on the development of many activities and has the potential to become a center of logistics. Increased demand on water use in the island has adversely contributed to the degradation and depletion of island water resources and especially salinity intrution to the groundwater system. In this paper, changes in groundwater hydrology and salinization due to the exploitation and use of water resources in the island were studied. Results show that groundwater dynamics on the island vary seasonally and much depend upon rainfall and other weather conditions while salinity intrution depends mainly on rainfall and groundwater extraction. Technical solutions were also proposed to help minimize the adverse impacts.