STUDY ON OPTIMIZING SURFACE WATER ALLOCATION TO LOWER VU GIA – THU BON RIVER BASIN UNDER WATER SCARCITY AND DROUGHT CONTEXT
Tóm tắt
Over the past few years, water scarcity and droughts have always been occurring in the Vu Gia - Thu Bon River basin, causing conflict water users. Water demand has also increased. Information and data on potential, the amount of water that can be allocated by 11 regions were used for calculating current water demand in 2014 and these by 2030, thereby determining the simulation model method (WEAP model) for allocating surface water resources to households exploiting and using water in the Vu Gia - Thu Bon River basin. The results showed that water demands of households are basically metcorresponding to inflow accounting for 85% (in 1998) of water demands in 2014 and of that by 2030, followed by sets of priority order and percent of water supplies. The total does not meet water demands corresponding to inflows 85% and 99% of water demands are 78.46 mil m3 and 101.19 mil m3, which is significantly less than existing water supplies plan with 146.99 mil m3. This results in the conflicts in water use, decreasing water degradation and maintaining environmental stability of the river.
