Changement climatique et cycle du carbone

Changement climatique et toponymie. Étude de la répartition ancienne du hêtre à travers ses traces toponymiques

In this paper we evaluate the feasibility of estimating the previous distribution of a tree species, the beech, from the analysis of toponyms presently in use and referring to this species. Specialists from toponymy, agromomy and geometics have been involved. Toponyms are a precious source of information about past distribution: more than 6100 toponyms referring to beech have been detected. MOT...

Benchmarking Climate-Carbon Model Simulations against Forest FACE Data

Terrestrial carbon fluxes are an important factor in regulating concentrations of atmospheric carbon dioxide (CO2). In this study, we use a coupled climate model with interactive biogeochemistry to benchmark the simulation of net primary productivity (NPP) and its response to elevated atmospheric CO2. Short-term field experiments such as Free-Air Carbon Dioxide Enrichment (FACE) studies have ex...

Éditorial: Informatique et changement de société

Révision de systèmes d’argumentation : changement minimal du statut des arguments

In this paper, we investigate the revision issue for argumentation systems à la Dung. We focus on revision as minimal change of the arguments status. Contrarily to most of the previous works on the topic, the addition of new arguments is not allowed in the revision process, so that the revised system has to be obtained by modifying the attack relation, only. We introduce a language of revision ...

Une méthode pour la définition de l'impact organisationnel du changement

RÉSUMÉ. La variété et la continuité des changements auxquels les organisations modernes sont soumises, ont donné naissance à de multiples approches de gestion du changement organisationnel. Ces approches proposent des directives générales pour gérer le processus de changement mais ne définissent pas de formalismes permettant de représenter le processus de changement, la vision du changement, l’...