Holocene history of fire, vegetation and land use from the central Pyrenees (France)

Abstract : Located on a mountain pass in the west-central Pyrenees, the Col d'Ech peat bog provides a Holocene fire and vegetation record based upon nine 14C (AMS) dates. We aim to compare climate-driven versus human-driven fire regimes in terms of frequency, fire episodes distribution, and impact on vegetation. Our results show the mid-Holocene (8500-5500 cal yr BP) to be characterized by high fire frequency linked with drier and warmer conditions.However, fire occurrences appear to have been rather stochastic as underlined by a scattered chronological distribution. Wetter and colder conditions at the mid-to-late Holocene transition (4000-3000 cal yr BP) led to a decrease in fire frequency, probably driven by both climate and a subsequent reduction in human land use. On the contrary, from 3000 cal yr BP, fire frequency seems to be driven by agro-pastoral activities with a very regular distribution of events. During this period fire was used as a prominent agent of landscape management
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Article dans une revue
Quaternary Research, Elsevier, 2012, 77, pp.54-64
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Damien Rius, Boris Vannière, Didier Galop. Holocene history of fire, vegetation and land use from the central Pyrenees (France). Quaternary Research, Elsevier, 2012, 77, pp.54-64. 〈halshs-00966755〉



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