1. UR RECOVER; Irstea; 13182 Aix-en-Provence Cedex 5 France
2. UMR Forest Ecology and Ecophysiology; INRA; 54280 Champenoux France
3. UMR Forest Ecology and Ecophysiology; Faculté des sciences et technologies; Université de Lorraine; 54506 Vandœuvre-lès-Nancy France
4. UR EFNO; Irstea; 45290 Nogent-sur-Vernisson France