IMHE OpenIR  > 山地灾害与地表过程重点实验室
Changes in hydrological behaviours triggered by earthquake disturbance in a mountainous watershed
Zhang, Guotao1,2; Cui, Peng1,2,3; Jin, Wen1,2; Zhang, Zhengtao4; Wang, Hao1,4; Bazai, Nazir Ahmed1,2,5; Li, Yao1,2; Liu, Dingzhu1,2; Alessandro, Pasuto6
Corresponding AuthorCui, Peng(pengcui@imde.ac.cn)
2021-03-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
EISSN1879-1026
Volume760Pages:143349
SubtypeArticle
Contribution Rank1
AbstractLandslides induced by strong earthquakes often destroy large amounts of landscape vegetation which can trigger significant changes in runoff potential and flood flow. Little is known about hydrological behaviours imposed by co-seismic landslides and their post-earthquake evolution. Therefore, we collected time-series datasets (2007-2018) of underlying surface conditions (USC) changes including landslide expansion and recovery in a watershed affected by the Wenchuan earthquake to further quantify howthe large physical disturbance affected the flood hydrological behaviours. The hydrological model HEC-HMS was calibrated and validated to predict the historical hydrological behaviours based on 5 min time-series data in rainfalls and streamflow (2018-2019), showing a good model performance with a mean Nash-Sutcliffe efficiency of 0.76. It was found that, shortly after the earthquake, the sharp expansion with 11% of landslide areas elevated the magnitudes of runoff potential, peak discharge, and runoff volume by >10%, and the peak to time for the high-magnitude flood was advanced by 25 min compared to the pre-earthquake levels. The tipping point along the hydrological disturbance-recovery trajectory was detected within 2011with higher flood peaks and volumes, and the periods of 2011-2013 (i.e. 3-5 years post-earthquake) were deemed to be a rapid recovery period, revealing an unstable hydrological function. These findings are significant for clearly understanding the magnitude and timing, aswell as greater risks of post-earthquake catastrophic flooding in earthquake-stricken regions. Additionally, the post-earthquake accompanied rainstorm-induced geohazards, which limited the recovery of landscape vegetation, triggering an undulant but clear recovery process (1-7 years post-earthquake) of hydrological behaviours. These findings promoted our understanding of the spatiotemporal evolution of hydrological behaviours triggered by the earthquake, and further contribute to the development of adaptation andmitigation strategies for the unpredictable flash floods triggered by future abrupt natural hazards in earthquake-affected regions. (C) 2020 Published by Elsevier B.V.
KeywordEarthquake disturbance Landslides Runoff potential Flood peaks Hydrological model
DOI10.1016/j.scitotenv.2020.143349
Indexed BySCI
WOS Keyword2008 WENCHUAN EARTHQUAKE ; DEBRIS FLOWS ; RIVER-BASIN ; HEC-HMS ; RUNOFF ; CONNECTIVITY ; CATCHMENT ; RAINFALL ; IMPACTS ; LANDSLIDES
Language英语
Funding ProjectNational Natural Science Foundation of China[41790432] ; Major International (Regional) Joint Research Project[41520104002] ; Sichuan Science and Technology program[2019YFH0040] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-DQC006]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000607779400031
Funding OrganizationNational Natural Science Foundation of China ; Major International (Regional) Joint Research Project ; Sichuan Science and Technology program ; Key Research Program of Frontier Sciences, CAS
PublisherELSEVIER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/55825
Collection山地灾害与地表过程重点实验室
Corresponding AuthorCui, Peng
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
5.China Pakistan Earth Sci Joint Res Ctr, Islamabad, Pakistan
6.Italian Natl Res Council, Res Inst Geohydrol Protect, I-351127 Padua, Italy
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Zhang, Guotao,Cui, Peng,Jin, Wen,et al. Changes in hydrological behaviours triggered by earthquake disturbance in a mountainous watershed[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,760:143349.
APA Zhang, Guotao.,Cui, Peng.,Jin, Wen.,Zhang, Zhengtao.,Wang, Hao.,...&Alessandro, Pasuto.(2021).Changes in hydrological behaviours triggered by earthquake disturbance in a mountainous watershed.SCIENCE OF THE TOTAL ENVIRONMENT,760,143349.
MLA Zhang, Guotao,et al."Changes in hydrological behaviours triggered by earthquake disturbance in a mountainous watershed".SCIENCE OF THE TOTAL ENVIRONMENT 760(2021):143349.
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