A methodological approach of fluvial dynamics oriented towards hydrosystem management: case study of the Loire and Allier rivers |
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| Institution: | 1. Université François Rabelais de Tours, E.A. 6293 GéHCO, GéoHydrosystèmes Continentaux, Faculté des Sciences et Techniques, Parc de Grandmont, 37200 Tours, France;2. INRA, UR 0588, Amélioration, Génétique et Physiologie Forestières, 2163 Avenue de la Pomme de Pin, CS 40001 Ardon, 45075 Orléans, Cedex 2, France;3. Université François Rabelais de Tours, UMR CNRS 7324 CITERES, CItés, TERritoires, Environnement et Sociétés, 33-35 allée Ferdinand de Lesseps, 37000 Tours, France;1. Laboratoire Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), CNRS, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, 33615 Pessac Cedex, France;2. UMR 1391 ISPA, INRA, Bordeaux Sciences Agro, Villenave d''Ornon, 33883, France;3. Programma de pos-graduação em Geoquímica, Universidade Federal Fluminense, Outeiro São João Batista s/n, 24020015 Niterói, RJ, Brazil;4. Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, France;5. Département Biologie, Chimie, Géographie, Université du Québec à Rimouski, Québec, Canada;6. Univ. Lille, CNRS, Univ. Littoral Côte d''Opale, UMR 8187, LOG, Laboratoire d''Océanologie et de Géosciences, F 62 930 Wimereux, France;7. Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Muséum National d''Histoire Naturelle, CNRS, IRD, UPMC, UCBN, UAG. 61 rue Buffon, 75231 Paris cedex 05, France |
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| Abstract: | This study was conducted as part of the European LIFE Loire Nature program for the conservation and management of a 110-km-long section of the Loire and Allier rivers, an area renowned for its ecological richness. The methodological approach is based on statistical analysis (bivariate and multivariate analyses) of hydro-geomorphologic and biogeographical variables, complemented by reach typology and mapping. The main results show, on the one hand, the great spatial variability of fluvial mosaic complexity along the river continuum and on the other hand, some independence between the riparian forest characteristics and the channel forms. The fluvial pattern (e.g. anabranching) and the forest establishment along the Loire river register specific features. |
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