Hydrological insights from hydrogen and oxygen isotopes in Source Area of the Yellow River, east-northern part of Qinghai–Tibet Plateau
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Analyses of stable (D and 18O) and radioactive (T) isotopes of different waters were applied to obtain the hydrological information in watersheds with different frozen ground types in the Source Area of the Yellow River, northeastern of Qinghai–Tibet Plateau in 2014 and 2016. Variations of oxygen and hydrogen isotope ratios, statistically higher tritium concentrations and lower water yields in thaw lakes confirm disparate sources of recharges to thaw lakes and other lakes. Thaw lakes at various stages of evolution influence the surface and subsurface water systems differently.
KeywordsTritium Stable water isotopes Source Area of the Yellow River Hydrology Frozen ground regions
This research was supported by the Chinese Academy of Sciences (CAS) Key Research Program (KZZD-EW-13), the National Natural Science Foundation of China (Grant No. 4147229), the State Key Program of National Natural Science of China (Grant No. 51539003) the Funds for State Key Laboratory of Frozen Soil Engineering (Grant No. SKLFSE201301), the China Postdoctoral Science Foundation funded project (Grant No. 2014M562478), Open Foundation of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering (Grant No. 2014490411), Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. KYCX17_0418) and the Fundamental Research Funds for the Central Universities (Grant No. 2017B682X14). The authors are grateful to the reviewer and editors. We also appreciate the help from Prof. J. Gibson and Dr. Y. Yi.
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