Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China
Abstract The Jiangcang Basin is an important mining area of the former Qilian Mountain large coal base in Qinghai Province, and understanding the groundwater circulation mechanism is the basis for studying the hydrological effects of permafrost degradation in alpine regions. In this study, hydrogeoc...
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crwiley:10.1111/gwat.13363 2024-06-02T08:13:07+00:00 Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China Zhao, Chongqin Li, Xiangquan Wang, Zhenxing Hou, Xinwei Ma, Jianfei National Key Research and Development Program of China 2023 http://dx.doi.org/10.1111/gwat.13363 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Groundwater volume 62, issue 3, page 427-438 ISSN 0017-467X 1745-6584 journal-article 2023 crwiley https://doi.org/10.1111/gwat.13363 2024-05-03T10:34:09Z Abstract The Jiangcang Basin is an important mining area of the former Qilian Mountain large coal base in Qinghai Province, and understanding the groundwater circulation mechanism is the basis for studying the hydrological effects of permafrost degradation in alpine regions. In this study, hydrogeochemical and multiple isotope tracer analysis methods are used to understand the chemical evolution and circulation mechanisms of the groundwater in the typical alpine region of the Jiangcang Basin. The diversity of the groundwater hydrochemistry in the study area reflects the complexity of the hydrogeochemical environment in which it is located. The suprapermafrost water and intrapermafrost water are recharged by modern meteoric water. The groundwater is closely hydraulically connected to the surface water with weak evaporation overall. The high δ 34 S value of deep groundwater is due to SO 4 reduction, and SO 4 2− ‐rich snow recharge with lixiviated sulfate minerals are the main controlling factor for the high SO 4 2− concentration in groundwater. According to the multivariate water conversion relationships, it reveals that the river receives more groundwater recharge, suprapermafrost water is recharged by the proportion of meteoric water, which is closely related to the mountainous area at the edge of the basin, while intrapermafrost water is mainly recharged by the shallow groundwater. This study provides a data‐driven approach to understanding groundwater recharge and evolution in alpine regions, in addition to having significant implications for water resource management and ecological environmental protection in coal bases of the Tibetan Plateau. Article in Journal/Newspaper permafrost Wiley Online Library Groundwater |
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Abstract The Jiangcang Basin is an important mining area of the former Qilian Mountain large coal base in Qinghai Province, and understanding the groundwater circulation mechanism is the basis for studying the hydrological effects of permafrost degradation in alpine regions. In this study, hydrogeochemical and multiple isotope tracer analysis methods are used to understand the chemical evolution and circulation mechanisms of the groundwater in the typical alpine region of the Jiangcang Basin. The diversity of the groundwater hydrochemistry in the study area reflects the complexity of the hydrogeochemical environment in which it is located. The suprapermafrost water and intrapermafrost water are recharged by modern meteoric water. The groundwater is closely hydraulically connected to the surface water with weak evaporation overall. The high δ 34 S value of deep groundwater is due to SO 4 reduction, and SO 4 2− ‐rich snow recharge with lixiviated sulfate minerals are the main controlling factor for the high SO 4 2− concentration in groundwater. According to the multivariate water conversion relationships, it reveals that the river receives more groundwater recharge, suprapermafrost water is recharged by the proportion of meteoric water, which is closely related to the mountainous area at the edge of the basin, while intrapermafrost water is mainly recharged by the shallow groundwater. This study provides a data‐driven approach to understanding groundwater recharge and evolution in alpine regions, in addition to having significant implications for water resource management and ecological environmental protection in coal bases of the Tibetan Plateau. |
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National Key Research and Development Program of China |
format |
Article in Journal/Newspaper |
author |
Zhao, Chongqin Li, Xiangquan Wang, Zhenxing Hou, Xinwei Ma, Jianfei |
spellingShingle |
Zhao, Chongqin Li, Xiangquan Wang, Zhenxing Hou, Xinwei Ma, Jianfei Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China |
author_facet |
Zhao, Chongqin Li, Xiangquan Wang, Zhenxing Hou, Xinwei Ma, Jianfei |
author_sort |
Zhao, Chongqin |
title |
Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China |
title_short |
Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China |
title_full |
Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China |
title_fullStr |
Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China |
title_full_unstemmed |
Use of Hydrogeochemistry and Isotopes for Evaluation of Groundwater in Qilian Coal Base of China |
title_sort |
use of hydrogeochemistry and isotopes for evaluation of groundwater in qilian coal base of china |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/gwat.13363 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Groundwater volume 62, issue 3, page 427-438 ISSN 0017-467X 1745-6584 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gwat.13363 |
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Groundwater |
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