YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
River damming and drought affect water cycle dynamics in an ephemeral river based on stable isotopes: The Dagu River of North China
Jiang, Dejuan1,3; Luo, Yongming1,3; Xia, Yun1,2; Li, Zhi2
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2021-03-01
Volume758Pages:143682
KeywordSpatial-temporal variation Accumulative impacts Hydrogen and oxygen isotopes Evaporative fractionation Water shortage Heavily-regulated river
DOI10.1016/j.scitotenv.2020.143682
AbstractThe flow regime and biogeochemical cycles are greatly affected by river damming and drought, especially in ephemeral rivers. However, the combined effects have been rarely considered. This study, taking the Dagu River in Jiaodong Peninsula of North China as an example, investigated the dynamic changes in water cycle related to river damming and drought using stable water isotopes for the period 2018-2019. The results indicated that riverwater isotopes significantly varied temporally and spatially. The temporal variations in riverwater isotopes appeared to be linked with those in precipitation, but the relationship between river water and precipitation isotopes was greatly affected by river damming, river water-groundwater exchange and potential water pollution. Spatially, a single dam exhibited no significant effect on riverwater isotopes, but the accumulative impacts of cascade dams resulted in the enrichment of heavy isotopes in river water towards the downstream through increasing hydraulic residence time and water evaporation largely. The inter-annual variations in river water isotopes with increased evaporative fractionationwere highlighted by their strong response to the drought in 2019. The combined effects of cascade dams and drought greatly changed water cycle dynamics and further exacerbated water shortage, which should thus be fully considered for water resource management, especially for regions with water-limited but heavily-regulated rivers. (C) 2020 Elsevier B.V. All rights reserved.
Funding OrganizationNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41671473]
Indexed BySCI
Language英语
WOS KeywordHYDROLOGICAL ALTERATIONS ; SURFACE-WATER ; JIAOZHOU BAY ; GROUNDWATER ; OXYGEN ; PRECIPITATION ; HYDROGEN ; BASIN ; LAKE ; CATCHMENT
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000605623800086
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/30518
Collection中科院海岸带环境过程与生态修复重点实验室
中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
Affiliation1.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China;
2.Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China;
3.Chinese Acad Sci, Ctr Ocean Megasci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Dejuan,Luo, Yongming,Xia, Yun,et al. River damming and drought affect water cycle dynamics in an ephemeral river based on stable isotopes: The Dagu River of North China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,758:143682.
APA Jiang, Dejuan,Luo, Yongming,Xia, Yun,&Li, Zhi.(2021).River damming and drought affect water cycle dynamics in an ephemeral river based on stable isotopes: The Dagu River of North China.SCIENCE OF THE TOTAL ENVIRONMENT,758,143682.
MLA Jiang, Dejuan,et al."River damming and drought affect water cycle dynamics in an ephemeral river based on stable isotopes: The Dagu River of North China".SCIENCE OF THE TOTAL ENVIRONMENT 758(2021):143682.
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