A hydrogeological and geochemical review of groundwater issues in southern Vietnam
Quang Khai Ha; Kim, K; Nam Long Phan; Thanh Huy Phung; Lee, J; Viet Ky Nguyen; Chu Nam Phan
| HERO ID | 6392814 |
|---|---|
| In Press | No |
| Year | 2019 |
| Title | A hydrogeological and geochemical review of groundwater issues in southern Vietnam |
| Authors | Quang Khai Ha; Kim, K; Nam Long Phan; Thanh Huy Phung; Lee, J; Viet Ky Nguyen; Chu Nam Phan |
| Journal | Geosciences Journal |
| Volume | 23 |
| Issue | 6 |
| Page Numbers | 1005-1023 |
| Abstract | Southern Vietnam is known as one of the most vulnerable areas to climate change in the world due to its low elevation and flat topography, heavy groundwater use, and dense population. This paper introduces hydrogeological conditions and critically reviews groundwater issues that southern Vietnam faces by summarizing previous literatures. Issues that this paper covers include groundwater use and associated phenomenon, acid sulfate soils, the occurrence of saline groundwaters, seawater intrusion, land subsidence, groundwater acidification, and groundwater contamination by nitrate, ammonium, and trace metals such as As, Fe, Mn, Al, Cd, and Pb. This paper shows that most of these issues are inter-related and essentially linked with the unique hydrogeological setting of the study area. However, many of these problems have also been triggered or aggravated by human activities that use water resources and land. Issues such as those of As contamination and groundwater acidification are connected with the aquifer characteristics that are generally confined and rich in organics and pyrite. However, groundwater salinization, acidification, groundwater level declining, land subsidence, and high heavy metal concentrations are in large part caused by human activities such as well installation and heavy groundwater abstraction. While previous studies have proposed artificial recharge as a promising means of mitigating groundwater issues in the study area, the development of techniques that help minimizing aquifer disturbances is also likely required. |
| Doi | 10.1007/s12303-019-0021-z |
| Wosid | WOS:000491436100011 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | acid sulfate soil; arsenic; sea level change; saline groundwater; acidification; artificial recharge |