Pluridisciplinary approach of the evolution of the agro-pastural activities in the surroundings of the " narse d'Espinasse " (French Massif Central, Puy de Dôme).

Yannick Miras 1 Fatima Laggoun-Défarge 2 P. Guenet 3 H. Richard 1
1 LCE - Laboratoire de chrono-écologie
2 ISTO - Institut des Sciences de la Terre d'Orléans
3 EPLEA
Abstract : The ldquonarserdquo or peat marsh of Espinasse (Saulzet-le-Froid district) situated in the southern part of the Chaîne des Puys has been the subject of a new pollen analysis concentrating on the anthropogenic impact on vegetation evolution since the Sub-Boreal. Human occupation of the surroundings of the narse is dated as early as the Neolithic, which is usual for the region. There is nevertheless an isolated record of Fagopyrum related to the Neolithic. This is a unique occurrence in the Massif Central. For successive periods and up to the recent past, a dynamic of various anthropization phases has been reconstructed. The combination of palynological data with archaeological and historical sources has for certain periods, mainly from the 11th to 13th centuries, provided new insights on the social and technical management of the territory. Furthermore, geochemical and micromorphological characterisation of sedimentary organic matter has led to the identification of erosive crises and silting which would have followed massive tree cutting in the region. On the local scale, the highly degraded organic matter at the top of the peat profile is the consequence of the current drainage of the marsh.
Keywords : Narse drsquoEspinasse Massif Central Human impact Palynology Organic matter Agro-pastoral activities
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Yannick Miras, Fatima Laggoun-Défarge, P. Guenet, H. Richard. Pluridisciplinary approach of the evolution of the agro-pastural activities in the surroundings of the " narse d'Espinasse " (French Massif Central, Puy de Dôme).. Vegetation History and Archaeobotany, Springer Verlag, 2004, 13, pp.2, 91-103. ⟨10.1007/s00334-004-0033-z⟩. ⟨hal-00068287⟩

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