- Titre: WADE « Wood Acclimation to Disturbed Environments »
- Financeurs : Labex ARBRE
- Durée : 01/01/2013 au 31/12/2016
- Partenaires institutionnels : INRA, AgroParisTech et Université de Lorraine
- Porteur du projet : Meriem FOURNIER (LERFoB)
- Mots clés : Bois, Structure, Propriétés, Fonctions
- Description du projet :
Wade aims at developing a new framework of wood analysis and quality modeling in the context of questions asked by acclimation to canopy disturbance. Such questions require new modeling approaches of wood plasticity, as tree responses in frequently and strongly changing environments overlay many processes.
Therefore, neither the usual modeling of wood properties from variables as tree ring width and cambial age, nor the empirical calibration of a few wood properties as markers of tree functioning and environmental disturbances, deliver robust and reliable predictions. WADE is based on a multi-scale approach of wood structure and properties from the whole tree to the cell wall ultrastructure and chemical composition, with a large set of techniques including usual and new methods of both dendro-ecology and wood physics and chemistry. It includes a careful theoretical analysis of the functional relevance of the selected properties and of their spatio-temporal patterns of variations, using an ecophysiological and biomechanical framework to study how trees respond to changes of both light and mechanical micro-climate after gap opening. WADE is designed in 4 tasks:
♦Task 1 aims at delivering the general wood framework, involving strongly the Xylosciences platform, with links with the PTEF one, for technical aspects. The three following tasks use this framework to answer biological questions linked to silvicultural or technological issues:
♦Task 2 studies how wood responds to mechanical constraints in natural environments using recent advances made by integrative biology in this field,
♦Task 3 characterizes wood of branches, especially its chemical properties with relation with diversity and ontogeny, enlarging the point of view developed in Scandinavian industrial studies on Picea abies,
♦ Task 4 develops new markers of growth history and canopy disturbances in saplings, as this development stage, poorly understood in growth models, impacts greatly the ability of forests to regenerate under changed climatic conditions.
A last task organizes synthesis and dissemination of results to i) phenomenological growth and yield forest models with forest R&D, ii) wood industries through parallel industrial projects, iii) teaching at master level. WADE is connected to other projects, especially through the national wood community (GDR Bois), the Nancy Freiburg Zurich wood group, and a North American project, currently designed by partners with potential opportunities of exchanges of junior or senior scientists.
- Contact LERFoB : Meriem FOURNIER
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