745 research outputs found
Forest vegetation management: France (chap.4)
Current practices and problems of forest vegetation management in France are described in the context of research on alternatives to herbicides.FORET;PEUPLEMENT FORESTIER;VEGETATION;CONCURRENCE VEGETALE;LUTTE;MODE DE TRAITEMENT;LUTTE PHYTOSANITAIRE + MAUVAISE HERBE;CONTROLE DE LA VEGETATION;PESTICIDE;HERBICIDE;LUTTE PHYTOSANITAIRE;IMPACT SUR L'ENVIRONNEMENT;DYNAMIQUE DE VEGETATION;HISTOIRE;GESTION FORESTIERE;ECOSYSTEME;FRANCE;VEGETATION FORESTIERE;GESTION;ALTERNATIVES AUX HERBICIDES;ADVENTICE;SPECIES COMPOSITION
Forest vegetation management in Europe: current practice and future requirements
The book provides a record of the co-operation within Europe in the field of forest vegetation management through the Cost Action E47. The aims are: i)to provide a summary of the current state of the art' as it applies to forest vegetation management in Europe for scientists, practitioners and policymakers, affiliated to state, non-governmental or private commercial organizations; ii)to document existing forest weed control practices across Europe, and hence provide a resource of alternative solutions for individual countries sharing similar conditions and challenges; and iii)to identify common information gaps and future research needs, and hence potential future areas of collaboration for forest vegetation management scientists across Europe, along with barriers that may need to be overcome to achieve that aim.FORET;PEUPLEMENT FORESTIER;VEGETATION;CONCURRENCE VEGETALE;LUTTE;MODE DE TRAITEMENT;COOPERATION INTERNATIONALE;RECHERCHE DEVELOPPEMENT;DEVELOPPEMENT DURABLE;AMENAGEMENT FORESTIER;MAUVAISE HERBE;CONTROLE DE LA VEGETATION;PESTICIDE;LUTTE PHYTOSANITAIRE;IMPACT SUR L'ENVIRONNEMENT;DYNAMIQUE DE VEGETATION;HERBICIDE;BIODIVERSITE;ECOSYSTEME;HISTOIRE;GESTION FORESTIERE;EUROPE;VEGETATION FORESTIERE;ADVENTICE;ALTERNATIVES AUX HERBICIDES;
Grenelle de l'environnement : quels impacts pour les projets d'infrastructures de transport en Rhône-Alpes ?
Le samedi 29 septembre 2007, s'est tenue dans les locaux de la Région Rhône-Alpes la première rencontre décentralisée du Grenelle de l'environnement. Une session dédiée au transport a fait émerger quelques questions clés que nous utiliserons comme toile de fond de notre réflexion sur ce que sont aujourd'hui et ce que seront demain les enjeux des infrastructures et de la mobilité en Rhône-Alpes.Grenelle de l'environnement ; projets d'infrastructures de transport ; impact sur l'environnement ; financement d'infrastructures de transport ; tarification de l'infrastructure ; politique de mobilité ; politique des transports ; Région Rhône-Alpes
Les migrations internes au Viêtnam et leur impact sur l'environnement
Thèse numérisée par la Division de la gestion de documents et des archives de l'Université de Montréal
An Identification of Environmental Disturbances from Road Developments in Subarctic Muskeg
The location, nature, and magnitude of some environmental changes associated with the introduction of a road across a muskeg in the discontinuous permafrost zone are identified from examination of near-infrared Landsat images. Impedance of natural surface drainage by the presence of a roadbed is hypothesized to transmit upstream hydro-thermal changes through the muskeg terrain, which in turn cause change in the muskeg vegetation community. Differences among the near-infrared spectral reflectances of fen, black spruce bog, and Sphagnum bog communities are found sufficiently large for use as indices of differences in the actual biophysical natures of the muskegs.Key words: environmental impact, northern Canada, muskegs, hydrology, Landsat interpretation, permafrost, road designMots clés: impact sur l'environnement, le nord du Canada, marécage, hydrologie, interprétation de Landsat, pergélisol, conception de route
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