Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet Plateau
This study investigated the hydrochemical characteristics and formation mechanism of natural water in the southeastern Qinghai-Tibet Plateau. To this end, 19 groundwater samples were collected, tested, and analyzed using various methods, such as mathematical statistics, a Piper diagram, correlation...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/23/3345 |
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| author | Zongjun Gao Hui Tong Qiao Su Jiutan Liu Fasheng Gao Cong Han |
| author_facet | Zongjun Gao Hui Tong Qiao Su Jiutan Liu Fasheng Gao Cong Han |
| author_sort | Zongjun Gao |
| collection | DOAJ |
| description | This study investigated the hydrochemical characteristics and formation mechanism of natural water in the southeastern Qinghai-Tibet Plateau. To this end, 19 groundwater samples were collected, tested, and analyzed using various methods, such as mathematical statistics, a Piper diagram, correlation analysis, Gibbs plots, and an ion ratio analysis. The results show that the dominant anions are HCO<sub>3</sub><sup>−</sup> and SO<sub>4</sub><sup>2</sup><sup>−</sup>, and the dominant cations are Ca<sup>2+</sup> and Mg<sup>2+</sup>, which accounted for 98.50% and 85.94% of the total amount of anions and cations, respectively. The samples were weakly alkaline water, where the TDS (total dissolved solids) ranged from 28.00 mg/L to 242.00 mg/L, with an average value of 129.10 mg/L. The hydrochemical types were mainly Ca·Mg-HCO<sub>3</sub>·SO<sub>4</sub>—accounting for 42.10%. The hydrochemical evolution process was found to be mainly controlled by the weathering and dissolution of carbonate and silicate rocks. The main sources of Na<sup>+</sup> and K<sup>+</sup> are rock salt and silicate rocks, and those of Ca<sup>2+</sup>, Mg<sup>2+</sup>, HCO<sub>3</sub><sup>−</sup>, and SO<sub>4</sub><sup>2</sup><sup>−</sup> are from the dissolution of dolomite, calcite, gypsum, and other calcium and magnesium bearing minerals. In addition, atmospheric precipitation serves as a replenishment source of natural water in the region, and the recharge is affected by evaporation. |
| first_indexed | 2024-03-10T04:42:52Z |
| format | Article |
| id | doaj.art-cd9e195e21664f8496c46fde31284cd2 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T04:42:52Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-cd9e195e21664f8496c46fde31284cd22023-11-23T03:14:06ZengMDPI AGWater2073-44412021-11-011323334510.3390/w13233345Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet PlateauZongjun Gao0Hui Tong1Qiao Su2Jiutan Liu3Fasheng Gao4Cong Han5College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaKey Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, ChinaCollege of Energy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaThis study investigated the hydrochemical characteristics and formation mechanism of natural water in the southeastern Qinghai-Tibet Plateau. To this end, 19 groundwater samples were collected, tested, and analyzed using various methods, such as mathematical statistics, a Piper diagram, correlation analysis, Gibbs plots, and an ion ratio analysis. The results show that the dominant anions are HCO<sub>3</sub><sup>−</sup> and SO<sub>4</sub><sup>2</sup><sup>−</sup>, and the dominant cations are Ca<sup>2+</sup> and Mg<sup>2+</sup>, which accounted for 98.50% and 85.94% of the total amount of anions and cations, respectively. The samples were weakly alkaline water, where the TDS (total dissolved solids) ranged from 28.00 mg/L to 242.00 mg/L, with an average value of 129.10 mg/L. The hydrochemical types were mainly Ca·Mg-HCO<sub>3</sub>·SO<sub>4</sub>—accounting for 42.10%. The hydrochemical evolution process was found to be mainly controlled by the weathering and dissolution of carbonate and silicate rocks. The main sources of Na<sup>+</sup> and K<sup>+</sup> are rock salt and silicate rocks, and those of Ca<sup>2+</sup>, Mg<sup>2+</sup>, HCO<sub>3</sub><sup>−</sup>, and SO<sub>4</sub><sup>2</sup><sup>−</sup> are from the dissolution of dolomite, calcite, gypsum, and other calcium and magnesium bearing minerals. In addition, atmospheric precipitation serves as a replenishment source of natural water in the region, and the recharge is affected by evaporation.https://www.mdpi.com/2073-4441/13/23/3345natural waterhydrochemical characteristicscause analysissoutheastern Qinghai-Tibet plateau |
| spellingShingle | Zongjun Gao Hui Tong Qiao Su Jiutan Liu Fasheng Gao Cong Han Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet Plateau Water natural water hydrochemical characteristics cause analysis southeastern Qinghai-Tibet plateau |
| title | Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet Plateau |
| title_full | Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet Plateau |
| title_fullStr | Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet Plateau |
| title_full_unstemmed | Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet Plateau |
| title_short | Hydrochemical Characteristics and Cause Analysis of Natural Water in the Southeast of Qinghai-Tibet Plateau |
| title_sort | hydrochemical characteristics and cause analysis of natural water in the southeast of qinghai tibet plateau |
| topic | natural water hydrochemical characteristics cause analysis southeastern Qinghai-Tibet plateau |
| url | https://www.mdpi.com/2073-4441/13/23/3345 |
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