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Stable Isotope Composition in Surface Water in the Upper Yellow River in Northwest China

1
College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
2
Key Laboratory for Ecology and Environment of River Wetlands of the Shaanxi Province, Weinan 714099, China
3
Laboratory of Atmospheric Physics, Physics Department, University of Patras, GR-265 00 Patras, Greece
*
Author to whom correspondence should be addressed.
Water 2019, 11(5), 967; https://doi.org/10.3390/w11050967
Received: 14 March 2019 / Revised: 3 May 2019 / Accepted: 6 May 2019 / Published: 8 May 2019
(This article belongs to the Section Hydrology)
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Abstract

Although stable isotopes of hydrogen and oxygen in surface waters (especially in river waters) are useful tools to understand regional hydrological processes, relevant information at some upper reaches of large rivers in western China is still limited. During 2016–2017, we focused on the Liujiaxia Reservoir along the upper Yellow River, where we collected surface water samples at two locations, above and below the dam (identified as “lake water” and “river water”). The results show that the heavy isotopes in lake and river waters are enriched during the warm months, when the river discharge is large, and depleted during the cold months. The slopes of the water line (δ2H versus δ18O) for both the lake and river waters were lower than that of the global mean, due to evaporation. The different d values of the lake and river water reflect the regional evaporation and water sources. View Full-Text
Keywords: stable isotope; surface water; river water; Yellow River stable isotope; surface water; river water; Yellow River
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Shi, M.; Wang, S.; Argiriou, A.A.; Zhang, M.; Guo, R.; Jiao, R.; Kong, J.; Zhang, Y.; Qiu, X.; Zhou, S. Stable Isotope Composition in Surface Water in the Upper Yellow River in Northwest China. Water 2019, 11, 967.

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