Jiang, Dejuan1,3
; Luo, Yongming1,3; Xia, Yun1,2; Li, Zhi2发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2021-03-01
卷号758页码:143682
关键词Spatial-temporal variationAccumulative impactsHydrogen and oxygen isotopesEvaporative fractionationWater shortageHeavily-regulated river
DOI10.1016/j.scitotenv.2020.143682
英文摘要The 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.
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41671473]
收录类别SCI
语种英语
关键词[WOS]HYDROLOGICAL ALTERATIONS; SURFACE-WATER; JIAOZHOU BAY; GROUNDWATER; OXYGEN; PRECIPITATION; HYDROGEN; BASIN; LAKE; CATCHMENT
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000605623800086
引用统计被引频次：2[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30518
专题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
作者单位1.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
推荐引用方式
GB/T 7714Jiang, 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.
APAJiang, 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.
MLAJiang, 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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