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Spatial distribution of trace elements in the soils of south-western France and identification of natural and anthropogenic sources

dc.rights.licenseopenen_US
dc.contributor.authorSAVIGNAN, Lionel
dc.contributor.authorLEE, Alexandre
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCOYNEL, Alexandra
dc.contributor.authorJALABERT, Stéphanie
ORCID: 0000-0001-8402-4445
IDREF: 229869025
dc.contributor.authorFAUCHER, Stephane
dc.contributor.authorLESPES, Gaetane
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCHERY, Philippe
ORCID: 0000-0003-2291-8093
IDREF: 192000543
dc.date.accessioned2023-12-01T08:53:02Z
dc.date.available2023-12-01T08:53:02Z
dc.date.issued2021-10-01
dc.identifier.issn0341-8162en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/186295
dc.description.abstractEnThe contamination of soils by trace elements is a major concern for soil quality. This study is based on the analysis of 356 samples from the RMQS soil monitoring network to establish the spatial distribution and origin of six trace elements (As, Cd, Cu, Cr, Ni, Pb) in soils of south-western region of France (area of 90,293 km2). An exploratory and multivariate statistical analysis, and geostatistics combined with a geographic information system (GIS) were used to identify and characterize any concentration anomalies in trace elements. For all the trace elements studied, the exploratory analysis shows that there are more anomalies in this region than in the rest of the country. Analysis of the semivariograms shows that the six elements are spatially auto correlated. The spatial structure of As highlights anisotropic behaviour with a direction that corresponds to the gold deposit and mining activities of the region. This indicates a dual origin anthropogenic and geogenic for As. The correlation between Cd and inherent features of calcareous soil (pH, CaCO3 and cation exchange capacity) suggest a mainly geogenic origin for this element; Cd origin is confirmed by its spatial distribution associated with the Jurassic limestone bedrock. The correlations between Cr, Ni and clays highlight a geogenic origin for these elements, as weathered parent material rich in clays is also rich in Cr and Ni. The high Cu concentrations are of anthropogenic origin, linked to viticulture and the spreading of Bordeaux mixture as a fungicide. Locally high Pb concentrations are associated with mining activities and automobile emissions in large cities in the region.
dc.language.isoENen_US
dc.subject.enmultivariate analysis
dc.subject.engeostatistics
dc.subject.enGIS
dc.subject.enmonitoring network
dc.title.enSpatial distribution of trace elements in the soils of south-western France and identification of natural and anthropogenic sources
dc.title.alternativeCatenaen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.catena.2021.105446en_US
dc.subject.halChimie/Autreen_US
bordeaux.journalCATENAen_US
bordeaux.page105446en_US
bordeaux.volume205en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-03240150
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=CATENA&rft.date=2021-10-01&rft.volume=205&rft.spage=105446&rft.epage=105446&rft.eissn=0341-8162&rft.issn=0341-8162&rft.au=SAVIGNAN,%20Lionel&LEE,%20Alexandre&COYNEL,%20Alexandra&JALABERT,%20St%C3%83%C2%A9phanie&FAUCHER,%20Stephane&rft.genre=article


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