Les barrages face à la problématique des bois flottants : collecte, traitement et valorisation

Dams and the issue of floating woods : gathering, treating and recovering

¹ UMR 5600 « Environnement, Ville, Société », 18, rue Chevreul, F-69362 Lyon Cedex 07 CRGA Université Jean Moulin – Lyon III
² UMR 5600 « Environnement, Ville, Société », 18, rue Chevreul, F-69362 Lyon Cedex 07 CRENAM Université Jean Monnet – Saint-Etienne

Auteur de correspondance : yf_lelay@hotmail.com

Abstract

Development companies are not responsible for the supply of large woody debris in fluvial hydrosystems. Nevertheless, the evolution of law and the social demand for an increased environmental conservation encourage decision-makers to reconsider their management of wastes accumulating against dams and hydraulic structures. Floating woods are not only a nuisance likely to induce economic costs, but also resources whose recovering is possible for the purposes of the composting and heating. The success depends on wood integration into a process of gathering, treating and recovering and on the capacity of all the stakeholders to involve in the maintenance of water territories.