Isotope evidence for quantifying river evaporation and recharge processes in the lower reaches of the Yellow River
Zhao, X; Li, FD
2017
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume76Issue:3Pages:-
AbstractEvaporation and recharge are important hydrological processes in the water cycle. However, accurately quantifying these two processes of river remains to be difficult due to their spatial heterogeneity and the limitations of traditional methods. In this study, a more reliable method of stable isotopes of delta O-18 and delta H-2 based on the Rayleigh distillation equation and mass conservation was used to estimate the evaporation and recharge of the rivers in the lower reaches of the Yellow River, North China Plain. Comprehensive sampling campaigns including 30 surface water samples from 10 rivers, 33 groundwater samples from domestic and observation wells, and two Yellow River water samples were conducted. The results showed that the evaporation proportion of the rivers based on delta O-18 and delta H-2 both averaged 14.4%. The evaporation proportions in each river did not completely follow a linear increasing trend along the flow path. This phenomenon could be mainly explained by the different proportions of recharge from groundwater and Yellow River water. With closer to the Yellow river, evaporation of the rivers decreased while the recharge by the Yellow River increased. Regression equations based on delta O-18, delta H-2, and their average revealed that the evaporation proportion respectively increased by 1.02, 0.79, and 0.90% with the increase in the distance to the Yellow River per 10 km. On the contrary, the recharge proportion decreased by 7.68, 5.51, and 6.59%, respectively. In addition, using delta O-18 rather than delta H-2 was more reliable in studying the spatial influence of the Yellow River on evaporation and recharge. Sensitivity analysis showed that the evaporation model was most sensitive to isotopic composition, rather than to air temperature or relative humidity. The results of this study provide insights into the determination of river hydrological processes and the management of water resources.
SubtypeJournal
KeywordFlow path Groundwater Hydrological process Rayleigh distillation Stable isotope Yellow River
Subject AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS Subject ExtendedEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS KeywordNORTH CHINA PLAIN ; STABLE-ISOTOPES ; GROUNDWATER RECHARGE ; SURFACE-WATER ; HYDROGEN ISOTOPES ; PAN EVAPORATION ; UNITED-STATES ; MASS-BALANCE ; LAKE ; BASIN
Indexed BySCI
Language英语
WOS IDWOS:000394967300003
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44103
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Zhao, X,Li, FD. Isotope evidence for quantifying river evaporation and recharge processes in the lower reaches of the Yellow River[J]. ENVIRONMENTAL EARTH SCIENCES,2017,76(3):-.
APA Zhao, X,&Li, FD.(2017).Isotope evidence for quantifying river evaporation and recharge processes in the lower reaches of the Yellow River.ENVIRONMENTAL EARTH SCIENCES,76(3),-.
MLA Zhao, X,et al."Isotope evidence for quantifying river evaporation and recharge processes in the lower reaches of the Yellow River".ENVIRONMENTAL EARTH SCIENCES 76.3(2017):-.
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