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Article: Groundwater discharge and hydrologic partition of the lakes in desert environment: Insights from stable 18 O/2 H and radium isotopes

TitleGroundwater discharge and hydrologic partition of the lakes in desert environment: Insights from stable 18 O/2 H and radium isotopes
Authors
Issue Date2017
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhydrol
Citation
Journal of Hydrology, 2017, v. 546, p. 189-203 How to Cite?
AbstractStudies of isotope characteristics of lake water in a desert can provide important information on groundwater discharge and hydrologic partition of the lakes in the desert. This paper presents the investigation of ¹⁸O and ²H stable isotopes and radiogenic radium of different water endmembers in three representative lakes of Badain-E, Badain-W and Sumujilin-S in the Badain Jaran Desert (BJD), the fourth largest desert in the world. A stable ¹⁸O and ²H isotopic buildup model is constructed to classify the hydrologic conditions of the desert lakes by estimating the ratio between groundwater discharge rate (Fin) and lake surface evaporation (E). Then the radium mass balance models are developed to quantify Fin. Based on the obtained Fin/E and Fin, Badain-E, Badain-W and Sumujilin-S are classified as flowing through, terminal and desiccating lakes, respectively, and their hydrologic partition is obtained. The groundwater discharge rate of Badain-E, Badain-W and Sumujilin-S, is estimated to be 8-10 mm d⁻¹, 4-5 mm d⁻¹, and 7-8 mm d⁻¹, respectively. The total groundwater discharge to the lake areas in the BJD is about 1.68 x 10⁵ m³ d⁻¹. The flow-through condition explains the existence of the fresh lakes, while the terminal and desiccating conditions lead to the lake salinization over time. This study represents the first attempt to couple both stable and radium isotopic approaches to investigate the groundwater discharge and hydrologic partition of desert lakes in the BJD and is instructional to lake studies in other deserts in the world.
Persistent Identifierhttp://hdl.handle.net/10722/243069
ISSN
2015 Impact Factor: 3.043
2015 SCImago Journal Rankings: 1.743

 

DC FieldValueLanguage
dc.contributor.authorLuo, X-
dc.contributor.authorJiao, JJJ-
dc.contributor.authorWang, XS-
dc.contributor.authorYang, S-
dc.date.accessioned2017-08-25T02:49:33Z-
dc.date.available2017-08-25T02:49:33Z-
dc.date.issued2017-
dc.identifier.citationJournal of Hydrology, 2017, v. 546, p. 189-203-
dc.identifier.issn0022-1694-
dc.identifier.urihttp://hdl.handle.net/10722/243069-
dc.description.abstractStudies of isotope characteristics of lake water in a desert can provide important information on groundwater discharge and hydrologic partition of the lakes in the desert. This paper presents the investigation of ¹⁸O and ²H stable isotopes and radiogenic radium of different water endmembers in three representative lakes of Badain-E, Badain-W and Sumujilin-S in the Badain Jaran Desert (BJD), the fourth largest desert in the world. A stable ¹⁸O and ²H isotopic buildup model is constructed to classify the hydrologic conditions of the desert lakes by estimating the ratio between groundwater discharge rate (Fin) and lake surface evaporation (E). Then the radium mass balance models are developed to quantify Fin. Based on the obtained Fin/E and Fin, Badain-E, Badain-W and Sumujilin-S are classified as flowing through, terminal and desiccating lakes, respectively, and their hydrologic partition is obtained. The groundwater discharge rate of Badain-E, Badain-W and Sumujilin-S, is estimated to be 8-10 mm d⁻¹, 4-5 mm d⁻¹, and 7-8 mm d⁻¹, respectively. The total groundwater discharge to the lake areas in the BJD is about 1.68 x 10⁵ m³ d⁻¹. The flow-through condition explains the existence of the fresh lakes, while the terminal and desiccating conditions lead to the lake salinization over time. This study represents the first attempt to couple both stable and radium isotopic approaches to investigate the groundwater discharge and hydrologic partition of desert lakes in the BJD and is instructional to lake studies in other deserts in the world.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jhydrol-
dc.relation.ispartofJournal of Hydrology-
dc.rightsPosting accepted manuscript (postprint): © <year>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/-
dc.titleGroundwater discharge and hydrologic partition of the lakes in desert environment: Insights from stable 18 O/2 H and radium isotopes-
dc.typeArticle-
dc.identifier.emailLuo, X: xinluo@hku.hk-
dc.identifier.emailJiao, JJJ: jjiao@hku.hk-
dc.identifier.authorityJiao, JJJ=rp00712-
dc.identifier.doi10.1016/j.jhydrol.2017.01.017-
dc.identifier.hkuros274230-
dc.identifier.volume546-
dc.identifier.spage189-
dc.identifier.epage203-
dc.publisher.placeNetherlands-

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