Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit River
The alternation of gaining and losing reaches is a common manifestation of stream-groundwater exchange, and studies on the stream water source composition where source means the location of gaining reaches have become one of the frontiers in stream water quality research. However, the characteristic...
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| Format: | Article |
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Editorial Office of Hydrogeology & Engineering Geology
2025-01-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
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| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202401053 |
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| author | Lanfang DING Zhiyuan ZHANG Xiaowei JIANG Xusheng WANG Li WAN |
| author_facet | Lanfang DING Zhiyuan ZHANG Xiaowei JIANG Xusheng WANG Li WAN |
| author_sort | Lanfang DING |
| collection | DOAJ |
| description | The alternation of gaining and losing reaches is a common manifestation of stream-groundwater exchange, and studies on the stream water source composition where source means the location of gaining reaches have become one of the frontiers in stream water quality research. However, the characteristics of stream water source compositions in arid and semi-arid areas or at large watershed scales remain unclear. By taking the Dosit River in the Ordos Plateau as an example, this study built a coupled stream-groundwater numerical model and analyzed the characteristics of stream-groundwater exchange in the Dosit River under three annual precipitation scenarios as well as their impact on the stream water source composition along the river. The results show that the Dosit River predominantly receives groundwater discharge, but the stream-groundwater exchange patterns on reach scale are heterogeneous, with a percentage of losing reaches of more than 40%. There is a concentration effect on the stream water source composition, e.g., in the Kushuigou section, 80% of the stream discharge under the three precipitation scenarios originates from only 12.3%, 9.2%, and 18.6% of the total river length, respectively. The concentration effect of stream water source composition correlates well with stream discharge, with the location of stream water sources becoming more concentrated as discharge decreases. This study is the first to investigate the characteristics of stream water source compositions in arid and semi-arid regions, highlighting the crucial role of key reaches in maintaining stream discharge. These findings can provide guidance for the rational management of water resources and effective prevention of river pollution in arid and semi-arid regions. |
| format | Article |
| id | doaj-art-bdf08d9ecf334fbf891395e9de491b8f |
| institution | Kabale University |
| issn | 1000-3665 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj-art-bdf08d9ecf334fbf891395e9de491b8f2025-01-18T03:52:24ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652025-01-01521425210.16030/j.cnki.issn.1000-3665.202401053202401053Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit RiverLanfang DING0Zhiyuan ZHANG1Xiaowei JIANG2Xusheng WANG3Li WAN4Key Laboratory of Groundwater Circulation and Environmental Evolution of Ministry of Education, China University of Geosciences （Beijing）, Beijing 100083, ChinaKey Laboratory of Groundwater Circulation and Environmental Evolution of Ministry of Education, China University of Geosciences （Beijing）, Beijing 100083, ChinaKey Laboratory of Groundwater Circulation and Environmental Evolution of Ministry of Education, China University of Geosciences （Beijing）, Beijing 100083, ChinaSchool of Water Resources and Environment, China University of Geosciences （Beijing）, Beijing 100083, ChinaSchool of Water Resources and Environment, China University of Geosciences （Beijing）, Beijing 100083, ChinaThe alternation of gaining and losing reaches is a common manifestation of stream-groundwater exchange, and studies on the stream water source composition where source means the location of gaining reaches have become one of the frontiers in stream water quality research. However, the characteristics of stream water source compositions in arid and semi-arid areas or at large watershed scales remain unclear. By taking the Dosit River in the Ordos Plateau as an example, this study built a coupled stream-groundwater numerical model and analyzed the characteristics of stream-groundwater exchange in the Dosit River under three annual precipitation scenarios as well as their impact on the stream water source composition along the river. The results show that the Dosit River predominantly receives groundwater discharge, but the stream-groundwater exchange patterns on reach scale are heterogeneous, with a percentage of losing reaches of more than 40%. There is a concentration effect on the stream water source composition, e.g., in the Kushuigou section, 80% of the stream discharge under the three precipitation scenarios originates from only 12.3%, 9.2%, and 18.6% of the total river length, respectively. The concentration effect of stream water source composition correlates well with stream discharge, with the location of stream water sources becoming more concentrated as discharge decreases. This study is the first to investigate the characteristics of stream water source compositions in arid and semi-arid regions, highlighting the crucial role of key reaches in maintaining stream discharge. These findings can provide guidance for the rational management of water resources and effective prevention of river pollution in arid and semi-arid regions.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202401053stream pollution preventionhydrologic turnoverstream water source compositiongaining reachlosing reach |
| spellingShingle | Lanfang DING Zhiyuan ZHANG Xiaowei JIANG Xusheng WANG Li WAN Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit River Shuiwen dizhi gongcheng dizhi stream pollution prevention hydrologic turnover stream water source composition gaining reach losing reach |
| title | Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit River |
| title_full | Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit River |
| title_fullStr | Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit River |
| title_full_unstemmed | Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit River |
| title_short | Impact of stream-groundwater interaction on stream water source composition: A case study of the Dosit River |
| title_sort | impact of stream groundwater interaction on stream water source composition a case study of the dosit river |
| topic | stream pollution prevention hydrologic turnover stream water source composition gaining reach losing reach |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202401053 |
| work_keys_str_mv | AT lanfangding impactofstreamgroundwaterinteractiononstreamwatersourcecompositionacasestudyofthedositriver AT zhiyuanzhang impactofstreamgroundwaterinteractiononstreamwatersourcecompositionacasestudyofthedositriver AT xiaoweijiang impactofstreamgroundwaterinteractiononstreamwatersourcecompositionacasestudyofthedositriver AT xushengwang impactofstreamgroundwaterinteractiononstreamwatersourcecompositionacasestudyofthedositriver AT liwan impactofstreamgroundwaterinteractiononstreamwatersourcecompositionacasestudyofthedositriver |