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

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 characte...

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Bibliographic Details
Published in:Journal of water chemistry and technology 2023-10, Vol.45 (5), p.503-513
Main Authors: Xinze Liu, Sun, Dong, Gao, Wenhao, Wang, Shikuan, Zhang, Jing, Zeng, Ying, Zhao, Songjiang, Zhang, Weizhen, Tan, Yongping, Jiang, Hao, Zhang, Wanting, Zheng, Jie, Xu, Hao, Chen, Hongwei, Fan, Ming
Format: Article
Language:English
Subjects:
Anions
Aquatic Pollution
Calcium
Calcium ions
Carbonate rocks
Carbonates
Cations
Correlation analysis
Dissolution
Dissolving
Earth and Environmental Science
Environment
Hydrochemistry
Industrial Chemistry/Chemical Engineering
Karst
Magnesium
Natural Waters
Statistical analysis
Surface water
Travertine
Waste Water Technology
Water bodies
Water Industry/Water Technologies
Water Management
Water Pollution Control
Water Quality/Water Pollution
Water resources
Water resources management
Weathering
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Summary: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 Ca 2+ , , Mg 2+ , Cl – and . The dominant cation is Ca 2+ , the dominant anion is , and the hydrochemical type is HCO 3 –Ca. The hydrochemical composition is comprehensively influenced by weathering, mineral dissolution and precipitation of rocks, in which Ca 2+ and mainly come from weathering and dissolution of carbonate rocks.
ISSN:1063-455X
1934-936X
DOI:10.3103/S1063455X23050119