Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, China
One quarter of the world’s population uses karst groundwater. Due to the complex hydrological conditions in karst areas, they are vulnerable to pollution. The study of the hydrochemical characteristics and environmental quality evaluations of karst groundwater is of great significance for the ration...
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MDPI AG
2023-06-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/11/2126 |
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| author | Xuchuan Duan Zhiguo Sun Shehong Li Zhongcheng Jiang Hongwei Liao |
| author_facet | Xuchuan Duan Zhiguo Sun Shehong Li Zhongcheng Jiang Hongwei Liao |
| author_sort | Xuchuan Duan |
| collection | DOAJ |
| description | One quarter of the world’s population uses karst groundwater. Due to the complex hydrological conditions in karst areas, they are vulnerable to pollution. The study of the hydrochemical characteristics and environmental quality evaluations of karst groundwater is of great significance for the rational development and utilization of karst groundwater. The study area is located in the Mengzi area of Yunnan Province, which is a typical karst area. The groundwater in the study area was analyzed and evaluated by a statistical analysis, hydrogeochemical analysis, ion ratio and Nemerow’s index method (<i>P</i><sub>N</sub>). The results show that the hydrochemical types are mainly the Ca–HCO<sub>3</sub> and Ca–Mg–HCO<sub>3</sub> types. The main hydrochemical compositions of groundwater were controlled by carbonate dissolution. The results of the water quality evaluation show that the main pollutants in the study area are Mn, COD and NO<sub>3</sub><sup>−</sup>. Compared with groundwater, the concentration and exceeding rate of pollutants in surface water are much higher than those in groundwater. There is the possibility of groundwater pollution by surface water infiltration. The results reveal the characteristics of groundwater pollution in typical karst areas and provide a theoretical basis for the rational development and utilization of groundwater. |
| first_indexed | 2024-03-11T02:53:25Z |
| format | Article |
| id | doaj.art-09a1b17ef5224e60939bf6c1e2b61a7c |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T02:53:25Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-09a1b17ef5224e60939bf6c1e2b61a7c2023-11-18T08:47:57ZengMDPI AGWater2073-44412023-06-011511212610.3390/w15112126Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, ChinaXuchuan Duan0Zhiguo Sun1Shehong Li2Zhongcheng Jiang3Hongwei Liao4CCCC Highway Consultants Co., Ltd., Beijing 100010, ChinaCCCC Highway Consultants Co., Ltd., Beijing 100010, ChinaSchool of Earth Sciences, Guilin University of Technology, Guilin 541006, ChinaInstitute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, ChinaInstitute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, ChinaOne quarter of the world’s population uses karst groundwater. Due to the complex hydrological conditions in karst areas, they are vulnerable to pollution. The study of the hydrochemical characteristics and environmental quality evaluations of karst groundwater is of great significance for the rational development and utilization of karst groundwater. The study area is located in the Mengzi area of Yunnan Province, which is a typical karst area. The groundwater in the study area was analyzed and evaluated by a statistical analysis, hydrogeochemical analysis, ion ratio and Nemerow’s index method (<i>P</i><sub>N</sub>). The results show that the hydrochemical types are mainly the Ca–HCO<sub>3</sub> and Ca–Mg–HCO<sub>3</sub> types. The main hydrochemical compositions of groundwater were controlled by carbonate dissolution. The results of the water quality evaluation show that the main pollutants in the study area are Mn, COD and NO<sub>3</sub><sup>−</sup>. Compared with groundwater, the concentration and exceeding rate of pollutants in surface water are much higher than those in groundwater. There is the possibility of groundwater pollution by surface water infiltration. The results reveal the characteristics of groundwater pollution in typical karst areas and provide a theoretical basis for the rational development and utilization of groundwater.https://www.mdpi.com/2073-4441/15/11/2126karst groundwaterhydrogeochemicalwater–rock interactionwater quality assessment |
| spellingShingle | Xuchuan Duan Zhiguo Sun Shehong Li Zhongcheng Jiang Hongwei Liao Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, China Water karst groundwater hydrogeochemical water–rock interaction water quality assessment |
| title | Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, China |
| title_full | Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, China |
| title_fullStr | Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, China |
| title_full_unstemmed | Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, China |
| title_short | Hydrogeochemical Characteristics and Environment Quality Assessment of Karst Groundwater in Mengzi Basin of Yunnan Province, China |
| title_sort | hydrogeochemical characteristics and environment quality assessment of karst groundwater in mengzi basin of yunnan province china |
| topic | karst groundwater hydrogeochemical water–rock interaction water quality assessment |
| url | https://www.mdpi.com/2073-4441/15/11/2126 |
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