The vegetation map of France going numerical: a new harmonised national geographical databaseReportar como inadecuado

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* Corresponding author 1 EcoLab ENSAT-Bat A - Laboratoire Ecologie Fonctionnelle et Environnement 2 LSE - Laboratoire Sols et Environnement 3 SOL-CONSEIL 4 EEF - Ecologie et Ecophysiologie Forestières 5 IMBE - Institut méditerranéen de biodiversité et d-écologie marine et continentale 6 LERFoB - Laboratoire d-Etudes des Ressources Forêt-Bois

Abstract : In this paper we present the digitalisation of the map of the vegetation of France edited in 64 sheets by the CNRS between 1947 and 1991. The geographical covers and the databases built during this work are gathered in a geographical database called -Base de Données Géographique de la VÉGétation de la France- BDGveg FR. The main covers show respectively the vegetation succession stages, as a georeferenced scan, at 1-200,000, and the harmonised map of the potential vegetation, in a vector format, at 1-1,000,000. The harmonised map of the potential vegetation is linked with a national 6-level typology synthesised from the keys of the 64 sheets. The BDGveg FR is unique because of its period of time, its local and national scales, its exhaustive cover, and its information on the plant associations. Thus, it is actually complementary to the other databases on the French vegetation presently available. It is particularly well appropriate to assess the impact of global changes e.g. climate, atmospheric pollution on ecosystem behaviour.

Keywords : Geographical Information System Numerical mapping harmonisation digitalisation scan vegetation series vector potential vegetation

Autor: Sophie Leguedois - Jean-Paul Party - Jean-Luc Dupouey - Thierry Gauquelin - Jean-Claude Gégout - Caroline Lecareux - Vincent Bad



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