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dc.rights.licenseopenen_US
dc.contributor.authorROBIN, Nicolas
dc.contributor.authorBILLY, Julie
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCASTELLE, Bruno
IDREF: 087596520
dc.contributor.authorHESP, Patrick
dc.contributor.authorNICOLAE-LERMA, Alexandre
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLAPORTE FAURET, Quentin
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMARIEU, Vincent
dc.contributor.authorROSEBERY, David
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBUJAN, Stephane
dc.contributor.authorDESTRIBATS, Benoit
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMICHALET, Richard
dc.date.accessioned2023-11-15T10:58:49Z
dc.date.available2023-11-15T10:58:49Z
dc.date.issued2021-02-01
dc.identifier.issn0169-555Xen_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/184768
dc.description.abstractEnForedunes are efficient natural coastal defenses acting as protective barriers during storm events. They also have the capacity to be an ecosystem hosting significant biodiversity. The economic development and/or recreational use of the foredune commonly results in a modification of natural functioning and the concomitant mixing of natural and anthropogenic processes. While the impact of human interventions on the short term evolution of coastal dunes is reasonably well understood, relatively less is known on their imprint at a scale of several decades. The Truc Vert beach-dune system (SW France), which has been exposed to various dune management strategies for more than a century, provides a relevant site to explore the respective contributions of natural and anthropogenic processes on coastal foredune evolution and the current coastal dune landscape. For this purpose, the coastal dune system was investigated using several approaches that combine ground penetrating radar (GPR), topographic data, aerial photographs and historical maps. A 20-m thick GPR sequence provides a stratigraphic record from which we detail ~150-year period of coastal dune change, including the initiation of the foredune. Results show a mixture of radar facies typical of natural aeolian erosion or deposition and radar facies that are the signature of human actions. These anthropogenic works include a large fence emplaced in 1860 to build and fix the foredune, and intense mechanical reshaping of the dune profile by bulldozers in 1972 followed by an intensive planting of vegetation. These various management strategies had a profound influence on coastal dune changes and, in turn, on the current coastal dune landscape. Historic archives documenting coastal dune works were critical to discriminate some of the radar facies, which could be wrongfully interpreted as natural erosion or deposition facies. Therefore, these results demonstrate the importance of coupling GPR and historical documentation wherever possible to determine, in part or fully, the contributions of human interventions and actions in modern dune evolution and morphological development.
dc.language.isoENen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subject.enBiodiversity
dc.subject.enCoastal Protection
dc.subject.enDune
dc.subject.enEconomic Development
dc.subject.enFrance
dc.subject.enGround Penetrating Radar
dc.subject.enHuman Activity
dc.subject.enStratigraphy
dc.subject.enTopography
dc.title.en150 years of foredune initiation and evolution driven by human and natural processes
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.geomorph.2020.107516en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalGeomorphologyen_US
bordeaux.volume374en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamMETHYSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
dc.rights.ccCC BY-NC-NDen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geomorphology&rft.date=2021-02-01&rft.volume=374&rft.eissn=0169-555X&rft.issn=0169-555X&rft.au=ROBIN,%20Nicolas&BILLY,%20Julie&CASTELLE,%20Bruno&HESP,%20Patrick&NICOLAE-LERMA,%20Alexandre&rft.genre=article


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