La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Pollen analysis of the core of Pont d'Argens (Roquebrune-sur-Argens, Var): Holocence vegetation history in the siliceous Provence; natural and anthropic factors
Auteurs :	Dubar Michel, Auteur ; Bui-Thi-Maï, Auteur ; Nicol-Pichard Sylvie, Auteur ; Thinon Michel, Auteur
Type de document :	Article
Dans :	Ecologia Mediterranea (30(2) 2004)
Article en page(s) :	147-157
Résumé :	The palynological of the upper 28 meters of the Holocene infill of the Argens Delta coinciding with the 8000-3000 BP period, has allowed a preliminary reconstruction of the history of the vegetation of Siliceous Provence. Originally there was a mixed decidous oak and arborescent healther forest. The absence or near-absence of taxa which are nowadays very common such as the chesnut or the cork-oak is to be noted. The forest cover decreased progressively from 6500 BP in response to natural (climate, sea-level, soils, and internal factors of the forest ecosystem) or anthropic causes. A first threshold of decline around 6000 BP and later a drastic modification of the forest cover around 3000 BP, may be certainly interpretated as man-made.

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