Adapting to Climate-Change-Induced Drought Stress to Improve Water Management in Southeast Vietnam

In Southeast Vietnam, droughts have become more frequent, causing significant damage and impacting the region’s socio-economic development. Water shortages frequently affect industrial agricultural sectors in area. This study aims to calculate water balance resilience of existing resource allocations La Nga-Luy River basin based on two scenarios: (1) business-as-usual (2) following a sustainable development approach. The MIKE NAM HYDRO BASIN models were used for rainfall–runoff (R-R) modeling, respectively, Keetch–Byram Drought Index (KBDI) was estimate magnitude droughts. results identified areas within where abnormally dry moderate drought conditions are common, as well subbasins, i.e., southeast northeast, severe extreme often prevail. It also shown that demand irrigation winter–spring summer–autumn crop life cycles could be fully met under conditions. possibility decreases 85–100% during droughts, however. contrast, 65% 45–50% is cycles, Furthermore, this demonstrates still 100% 75–80% time moderate, or through increased use efficiency. help managers rationally regulate order meet sector’s needs region reduce costs caused by