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Réseau d'îlots de vieux bois - Eléments de méthode et test dans les forêts publiques du Mont Ventoux

Abstract : Retention of a network of leave islands is a new tool used for biodiversity conservation, especially supporting cavity-dwelling and saproxylic species. Following a review of the literature, a generic method to set up such a network (including 7 steps) is proposed, together with practical tools. It is applied to the forests of Mont-Ventoux (southern France). A scenario, defined by using a participatory approach, leads to delineate a network of leave islands based on naturalness indicators (nativeness, old-growthness, ancientness, connectivity), together with a species approach, and taking into deep consideration economical aspects and security of visitors. The network must not exceed 3% of the total forest area. ELECTRE methods are used to rank the 132 described islands, based on the written scenario. 74 islands are retained to form the final network. The ecological values are maximised. The economical gap is minimised (66% of the islands represent a gap of less than 20€.ha -1.y-1). The revision of the management plan of Ventouret State Forest in 2012 has made possible to set up the first islands, one financially compensated by Natura 2000. The method proves to be able to evaluate and rank each island, and to discuss the connectivity of the network. It is available for further application to far different ecological contexts.
Keywords : ilot
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https://hal.inrae.fr/hal-02809473
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Submitted on : Saturday, June 6, 2020 - 7:00:09 AM
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  • HAL Id : hal-02809473, version 1
  • PRODINRA : 257204

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Eugénie Cateau, Marie Parrot, Anthony Roux, Ken Reyna, Magali Rossi, et al.. Réseau d'îlots de vieux bois - Eléments de méthode et test dans les forêts publiques du Mont Ventoux. [Contrat] 2013. ⟨hal-02809473⟩

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