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Sampling soil wood charcoals at a high spatial resolution: a new methodology to investigate the origin of grassland plant communities

hal.structure.identifierAvignon Université [AU]
dc.contributor.authorDUTOIT, Thierry
hal.structure.identifierInstitut Méditerranéen d'Ecologie et de Paléoécologie [IMEP]
dc.contributor.authorTHINON, Michel
hal.structure.identifierInstitut Méditerranéen d'Ecologie et de Paléoécologie [IMEP]
dc.contributor.authorTALON, Brigitte
hal.structure.identifierAvignon Université [AU]
dc.contributor.authorBUISSON, Elise
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorALARD, Didier
dc.date.issued2009
dc.identifier.issn1100-9233
dc.description.abstractEnQuestions: (i) Can sampling of soil wood charcoals at high spatial resolution produce new evidence concerning the presence of chalk grassland before or during the Neolithic, Bronze and Iron Ages? (ii) Are there correlations between vegetation history and archeological data during these periods at this particular site? Location: The chalk hillsides of Saint-Adrien in the lower Seine Valley, Upper Normandy, northwest France. Methods: The study was carried out at a high spatial resolution in chalk grassland using soil wood charcoal analysis, in which charcoals found in the soil were identified and dated in an area of several hundred square meters. Results: Late-successional woody species (Fagus sylvatica, Quercus sp.) were still present in the study site in an area inconsistent with the existence of large chalk grassland herbaceous plant communities (several hectares) in the Neolithic (6500–3800 BP) and Bronze Age (3800–2700 BP). Conclusions: The presence of late-successional woody species on the studied hillside suggests that fires in the Neolithic were linked to forest clearance for pastoral activities, as already demonstrated for similar ecosystems in eastern France and Germany. Nevertheless, our methodology clearly demonstrates that palaecological studies need to take into account the spatial organisation of plant communities as a complementary element to validate their potential existence in former times.
dc.language.isoen
dc.publisherWiley
dc.subjectPALEOECOLOGY
dc.subjectPLANT COMMUNITIES
dc.subjectBOIS LIGNEUX
dc.subject.enCHALK GRASSLANDS
dc.subject.enFRANCE
dc.subject.enUPPER NORMANDY
dc.subject.enHETRE COMMUN
dc.subject.enCHENE
dc.subject.enHERBAGE CALCAIRE
dc.title.enSampling soil wood charcoals at a high spatial resolution: a new methodology to investigate the origin of grassland plant communities
dc.typeArticle de revue
dc.identifier.doi10.1111/j.1654-1103.2009.05403.x
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
bordeaux.journalJournal of Vegetation Science
bordeaux.page349-358
bordeaux.volume20
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-02658099
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02658099v1
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