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| DOI | 10.3390/w16081137 |
| Geochemical Assessment of the Evolution of Groundwater under the Impact of Seawater Intrusion in the Mannar District of Sri Lanka | |
| 发表日期 | 2024 |
| EISSN | 2073-4441 |
| 起始页码 | 16 |
| 结束页码 | 8 |
| 卷号 | 16期号:8 |
| 英文摘要 | Groundwater is an important drinking water resource in the coastal regions of island countries and has suffered from heavy seawater intrusion. However, the areas specifically affected by seawater intrusion and their groundwater hydrogeochemical compositions and evolution processes remain unclear. This study analyzed the hydrogeochemical compositions, water quality, and evolution processes of groundwater in the Mannar district, Sri Lanka, during the dry season. A total of 56 samples were collected from shallow wells and tube wells across the region, and about 64.28% of groundwater samples had good quality (WQI < 100). Geochemical compositions and water quality parameters had a high level in the north and south mainland regions, where they severely suffered from seawater intrusion with a high content of Cl- and Na+. The geochemical compositions of groundwater in the Mannar district were predominantly affected by rock weathering and/or evaporation processes. Cl-Na and HCO3-Ca facies were the main hydrochemical types, and the corresponding ions were mainly from silicate and halite dissolution. The reverse cation exchange process mainly occurred in seawater intrusion areas. The study highlights the impacts of seawater intrusion on the hydrogeochemical compositions and evolution processes in Mannar region groundwater, which will enhance the understanding of the local water quality and seawater intrusion situation and aid in protecting drinking water safety by routinely monitoring the groundwater quality and implementing targeted desalination techniques in the key areas. |
| 英文关键词 | groundwater; hydrogeochemical composition; water quality; spatial-temporal mapping; seawater intrusion; evolution process |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| WOS类目 | Environmental Sciences ; Water Resources |
| WOS记录号 | WOS:001211169100001 |
| 来源期刊 | WATER
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/298486 |
| 作者单位 | Chinese Academy of Sciences; Research Center for Eco-Environmental Sciences (RCEES); Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Jianghan University |
| 推荐引用方式 GB/T 7714 | . Geochemical Assessment of the Evolution of Groundwater under the Impact of Seawater Intrusion in the Mannar District of Sri Lanka[J],2024,16(8). |
| APA | (2024).Geochemical Assessment of the Evolution of Groundwater under the Impact of Seawater Intrusion in the Mannar District of Sri Lanka.WATER,16(8). |
| MLA | "Geochemical Assessment of the Evolution of Groundwater under the Impact of Seawater Intrusion in the Mannar District of Sri Lanka".WATER 16.8(2024). |
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