Influence des facteurs historiques sur la végétation actuelle: le cas des mottes castrales en milieu forestier (Picardie, France)

Decocq, Guillaume; Vieille, Valérie; Racinet, Philippe

doi:10.1080/12538078.2002.10515954

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Geochemical alterations are reflected in the herbaceous vegetation, as indicated by the EIV for soil acidity, fertility and moisture. Furthermore, occupied sites had increased species richness, as shown on similar timescales by Decocq et al (2002), Dupouey et al (2002) and Dambrine et al (2007). Moreover, similar to the interaction between past land use and soil pH, the increase in species richness had a tendency to be less expressed on initially rich soils compared to acid soils.…”

Section: Discussionmentioning

confidence: 62%

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Persistent changes in forest vegetation and seed bank 1,600 years after human occupation

et al. 2008

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Past land use is an important factor determining vegetation in temperate deciduous forests. Little is known about the long-term persistence of these impacts on vegetation but especially on the seed bank. This study assessed whether soil characteristics remain altered 1,600 years after human occupation and if this yielded persistent differences in forest plant communities and their seed bank in particular. Compiègne forest is located in northern-France and has a history of continuous forest cover since the end of Roman times. Twenty-four Gallo-Roman and 24 unoccupied sites were sampled and data were analysed using paired sample tests to investigate whether soil, vegetation and seed bank still differed significantly. The soil was persistently altered on the Gallo-Roman sites resulting in elevated phosphorus levels and pH (dependent on initial soil conditions) which translated into increased vegetation and seed bank species richness. Though spatially isolated, Gallo-Roman sites supported both a homogenized vegetation and seed bank. Vegetation differences were not the only driver behind seed bank differences. Similarity between vegetation and seed bank was low and the possibility existed that agricultural ruderals were introduced via the former land use. Ancient human occupation leaves a persistent trace on forest soil, vegetation and seed bank and appears to do so at least 1,600 years after the former occupation. The geochemical alterations created an entirely different habitat causing not only vegetation but also the seed bank to have altered and homogenized composition and characteristics. Seed bank differences likely persisted by the traditional forest management and altered forest environment.Keywords Anthropogenic legacies Á Biodiversity Á France Á Gallo-Roman occupation Á Historical ecology Á Land use history Á Seed bank Á Soil Á Vegetation

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Section: Discussionmentioning

confidence: 62%

“…In the literature, the question as to how long human impact on soil and vegetation remains detectable, has received little attention (but see Dupouey et al 2002;Decocq et al 2002;Vanwalleghem et al 2004;Dambrine et al 2007), with most research focusing on-in forest terms-short timeframes of about 50-150 years (e.g. Koerner et al 1997).…”

Section: Introductionmentioning

confidence: 99%