The main goal of this study is to examine future changes in meteorological, hydrological drought under the impact of climate change in Dong Nai River Basin, using Standardized Precipitation Index (SPI) and Stream flow Drought Index (SDI). The Soil and Water Assessment Tool (SWAT) is used as a simulated tool to estimate the streamflow in baseline (1980–2005) and climate change (RCP 4.5, 2016–2035) scenarios for meteorological, hydrological calculation. The results show that both types of drought tend to occur in the dry season. The area affected by meteorological and hydrological drought expand in both baseline and RCP 4.5 scenarios. In addition, meteorological drought duration is also significantly increased, especially severely drought months. Although it was detected slightly decreasing in the duration of hydrological drought, the number of months which is occurred moderately drought in sub-basins still goes up in the climate change scenario. These findings could be useful for water shortage assessment and allocation planning in this area in the climate change context in the Dong Nai River Basin.

这项研究的主要目的是使用标准化降水指数（SPI）和水流干旱指数（SDI），研究同奈河流域气候变化影响下的气象，水文干旱的未来变化。土壤和水评估工具（SWAT）被用作模拟工具，以估算基线（1980–2005）和气候变化（RCP 4.5，2016–2035）情景中的流量，以进行气象，水文计算。结果表明，两种干旱都倾向于在干旱季节发生。在基准情景和RCP 4.5情景中，受气象和水文干旱影响的地区都在扩大。另外，气象干旱的持续时间也明显增加，尤其是严重干旱的月份。尽管在水文干旱持续时间内检测到略有减少，在气候变化的情况下，次流域中度干旱的月份数仍在增加。这些发现对于同奈河流域气候变化背景下该地区的水资源短缺评估和分配规划可能是有用的。