TAILIEUCHUNG - Báo cáo toán học: "Short term interactions between tree foliage and the aerial environment: An overview of modelling approaches available for tree structure-function model"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Short term interactions between tree foliage and the aerial environment: An overview of modelling approaches available for tree structure-function models. | 477 Ann. For. Sci. 57 2000 477-496 INRA EDP Sciences Review Short term interactions between tree foliage and the aerial environment An overview of modelling approaches available for tree structure-function models Hervé Sinoquet and Xavier Le Roux UMR PIAF INRA - Université Blaise Pascal Site de Crouelle 234 avenue du Brézet 63039 Clermont-Ferrand Cedex 02 France Received 9 March 1999 accepted 4 November 1999 Abstract - Functional-structural tree models represent tree aboveground environment interactions. Actually plant architecture and function induce large variations in environmental variables within the canopy while these variations themselves induce a range of responses at the organ scale which modulate plant function and architecture dynamics. This paper gives an overview of i processes involved in the short-term interactions between the tree foliage and the aboveground environment and ii associated modelling approaches. Then it is shown that detailed models of tree foliage aboveground environment interactions can be used to test simplifying assumptions such as the constancy of light or water use efficiency recently used in several functional-structural tree models. We conclude that a good knowledge of basic processes involved in these short-term interactions is available. The point is now to compare models focusing on tree-atmosphere exchanges and to use these models to test assumptions and derive summary submodels for tree functional-structural models. microclimate radiation wind photosynthesis transpiration acclimation modelling integration Résumé - Interactions à court terme entre le feuillage de l arbre et son environnement aérien une revue des approches de modélisation disponibles pour les modèles d arbre structure-fonction. Les modèles d arbres structure - fonction représentent les interactions entre l arbre et son environnement aérien. En effet la presence et le fonctionnement de la plante induisent de grandes variations des variables climatiques dans .

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