River damming and drought affect water cycle dynamics in an ephemeral river based on stable isotopes: The Dagu River of North China
文献类型：期刊论文
| 作者 | Jiang, Dejuan1,3 ; Luo, Yongming1,3; Xia, Yun1,2; Li, Zhi2
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 758页码:143682 |
| 关键词 | Spatial-temporal variation Accumulative impacts Hydrogen and oxygen isotopes Evaporative fractionation Water shortage Heavily-regulated river |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/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. |
| WOS关键词 | HYDROLOGICAL ALTERATIONS ; SURFACE-WATER ; JIAOZHOU BAY ; GROUNDWATER ; OXYGEN ; PRECIPITATION ; HYDROGEN ; BASIN ; LAKE ; CATCHMENT |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000605623800086 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41671473] |
| 源URL | [http://ir.yic.ac.cn/handle/133337/30518]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 烟台海岸带研究所_近岸生态与环境实验室 |
| 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 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. |
入库方式： OAI收割
来源：烟台海岸带研究所
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