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Intensification of hydrological drought due to human activity in the middle reaches of the Yangtze River, China
Zhang, Dan1; Zhang, Qi1; Qiu, Jiaming2; Bai, Peng3; Liang, Kang3; Li, Xianghu1
2018-10-01
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume637Pages:1432-1442
Corresponding AuthorZhang, Qi(qzhang@niglas.ac.cn)
AbstractHydrological extremes are changing under the impacts of environmental change, i.e., climate variation and human activity, which can substantially influence ecosystems and the living environment of humans in affected region. This study investigates the impacts of environmental change on hydrological drought in the middle reaches of the Yangtze River in China based on hydrological modelling. Change points for streamflow into two major lakes and a reservoir in the study area were detected in the late 1980s using the Mann-Kendall test. Streamflow simulation by a water balance model was performed, and the resulting Kling-Gupta efficiency value was >0.90. Hydrological drought events were identified based on the simulated streamflow under different scenarios. The results show that the hydrological drought occurrence was increased by precipitation, whereas the drought peak value was increased by potential evapotranspiration. The impacts of precipitation and potential evapotranspiration on drought severity and duration varied in the study area. However, hydrological drought was intensified by the influence of human activity, which increased the severity, duration and peak value of droughts. The dominant factor for hydrological drought severity is precipitation, followed by potential evapotranspiration and human activity. The impacts of climate variation and human activity on drought severity are larger than on drought duration. In addition, environmental change is shown to have an "accumulation effect" on hydrological drought, demonstrating that the indirect impacts of environmental change on hydrological drought are much larger than the direct impacts on streamflow. This study improves our understanding of the responses of hydrological extremes to environmental change, which is useful for the management of water resources and the prediction of hydrological disasters. (C) 2018 Elsevier B.V. All rights reserved.
KeywordHydrological drought Quantification Human activity Accumulation effect
DOI10.1016/j.scitotenv.2018.05.121
WOS Keyword3 GORGES DAM ; DIFFERENT TIME SCALES ; WATER-BALANCE MODELS ; CLIMATE-CHANGE ; LAKE BASIN ; IMPACTS ; STREAMFLOW ; CATCHMENT ; EVENTS ; PRECIPITATION
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China[41771039] ; Natural Science Foundation of China[41330529] ; Natural Science Foundation of China[41571023]
Funding OrganizationNatural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000436605400137
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54357
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhang, Qi
Affiliation1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing, Jiangsu, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Changwang Sch Honors, Nanjing, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Dan,Zhang, Qi,Qiu, Jiaming,et al. Intensification of hydrological drought due to human activity in the middle reaches of the Yangtze River, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,637:1432-1442.
APA Zhang, Dan,Zhang, Qi,Qiu, Jiaming,Bai, Peng,Liang, Kang,&Li, Xianghu.(2018).Intensification of hydrological drought due to human activity in the middle reaches of the Yangtze River, China.SCIENCE OF THE TOTAL ENVIRONMENT,637,1432-1442.
MLA Zhang, Dan,et al."Intensification of hydrological drought due to human activity in the middle reaches of the Yangtze River, China".SCIENCE OF THE TOTAL ENVIRONMENT 637(2018):1432-1442.
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