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Determination of vertical infiltration recharge of groundwater in the thick unsaturated zone of Sangong River basin, Xinjiang

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doi: 10.12029/gc20170506
Authors:Sun Fangqiang; Yin Lihe; Wang Xiaoyong; Ma Hongyun; Zhang Jun; Dong Jiaqiu; He Shuaijun
Author Affiliations:Primary:
China Geological Survey, Xi'an Center, Xi'an, China
Volume Title:Zhongguo Dizhi Geology in China
Source:Zhongguo Dizhi = Geology in China, 44(5), p.913-923. Publisher: Science Press, Beijing, China. ISSN: 1000-3657
Publication Date:2017
Note:In Chinese with English summary. 58 refs.; illus., incl. 3 tables
Summary:The authors investigated the origin of soil water and vertical infiltration recharge of groundwater in thick unsaturated zone of arid area based on the characteristics of water content, stable isotopes (δD and δ18O) of soil water and soluble salt ions in soil. The results indicate that the vertical profiles of stable isotopes of soil water depict a cyclic variation as well as water content and chloride of soluble salt ions for the uncultivated regions in desert and cultivated and uncultivated regions in oasis. Each cyclic variation indicates one infiltration event that has involved mixture of newly infiltrated water and existing soil water. The lower value of Cl-content is consistent with the depleted values of δD in each cycle; δD of soil water varies from -124.10 per mill to -94.44 per mill, which suggests that soil water originates from precipitation or snow in winter in desert and in oasis. The vertical infiltration recharge varies in the ranges of 1.29∼5.53 mm/a, 0.52∼1.85 mm/a and 0.03∼0.08 mm/a respectively for the cultivated and uncultivated regions in oasis and the uncultivated regions in desert.
Subjects:D/H; Deuterium; Geochemistry; Ground water; Hydrochemistry; Hydrogen; Infiltration; Isotope ratios; Isotopes; O-18/O-16; Oxygen; Recharge; Stable isotopes; Unsaturated zone; Asia; China; Far East; Xinjiang China; Sangong River basin
Coordinates:N441000 N441000 E0875900 E0875900
Record ID:843328-6
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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