Hydrochemical Characteristics and Driving Factors of Surface Water in Nenensangcuo, Eastern Margin of Qinghai–Tibet Plateau, China

IF 0.5 4区 化学 Q4 CHEMISTRY, ANALYTICAL Journal of Water Chemistry and Technology Pub Date : 2023-09-21 DOI:10.3103/S1063455X23050119
Xinze Liu, Dong Sun, Wenhao Gao, Shikuan Wang, Jing Zhang, Ying Zeng, Songjiang Zhao, Weizhen Zhang, Yongping Tan, Hao Jiang, Wanting Zhang, Jie Zheng, Hao Xu, Hongwei Chen, Ming Fan
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Abstract

Nenensangcuo is a typical karst travertine scenic spot in the eastern margin of Qinghai−Tibet Plateau. Studying its hydrochemical evolution characteristics and driving factors is of great significance to local economic and social development and scientific management of water resources. The characteristics of hydrochemistry are analyzed by mathematical statistics, and the types of hydrochemistry are analyzed by Piper’s three-line diagram. The sources of main ions in surface water and their influencing factors are discussed by Gibbs diagram and ion correlation analysis. The pH value of water body varies from 6.6–8.2, and the TDS value varies from 210–747 mg/L. The main sources are Ca2+, \({\text{HCO}}_{3}^{ - }\), Mg2+, Cl and \({\text{SO}}_{4}^{{2 - }}\). The dominant cation is Ca2+, the dominant anion is \({\text{HCO}}_{3}^{ - }\), and the hydrochemical type is HCO3–Ca. The hydrochemical composition is comprehensively influenced by weathering, mineral dissolution and precipitation of rocks, in which Ca2+ and \({\text{HCO}}_{3}^{ - }\) mainly come from weathering and dissolution of carbonate rocks.

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青藏高原东缘嫩桑措地表水化学特征及驱动因素
嫩桑措是青藏高原东缘典型的喀斯特钙华风景区。研究其水化学演化特征及其驱动因素,对当地经济社会发展和水资源科学管理具有重要意义。用数理统计方法分析了水化学的特征,用派珀三线图分析了水化工的类型。通过吉布斯图和离子相关性分析,讨论了地表水中主要离子的来源及其影响因素。水体pH值在6.6–8.2之间变化,TDS值在210–747 mg/L之间变化。主要来源是Ca2+、\({\text{HCO}}_{3}^{-}\)、Mg2+、Cl–和\({{\text{SO}}_{4}^}{{2-})。主要阳离子为Ca2+,主要阴离子为\({\text{HCO}}_{3}^{-}\),水化学类型为HCO3–Ca。水化学成分受岩石风化、矿物溶解和沉淀的综合影响,其中Ca2+和\({\text{HCO}}_{3}^{-}\)主要来自碳酸盐岩的风化和溶解。
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Journal of Water Chemistry and Technology
Journal of Water Chemistry and Technology CHEMISTRY, APPLIED-CHEMISTRY, ANALYTICAL
自引率
0.00%
发文量
51
审稿时长
>12 weeks
期刊介绍: Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.
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