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French

ID: <

10670/1.bu6bpd

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Modelling forest stand dynamics : present status and future prospects

Abstract

International audience Modelling of the growth of trees and stand dynamics has developed considerably in the last few years and has led to more and more applications. This article aims to explain and illustrate 1) modelling as a scientific and technical procedure and 2) (growth) models as products of this procedure. Modelling is presented as a process involving jointly 1) objectives (those of the researchers or managers), 2) biological knowledge (to be acquired or incorporated into a greater whole) and 3) mathematical, statistical and computer techniques. Different types of models (models of forests, stands and trees dependent on or independent of distance, and models of tree architecture) are presented and placed in relation to each other in a historical perspective. Examples are given to illustrate both the internal operation of the models (knowledge, methods and data required) and the possible uses they can be put to by forest managers or industrialists. In conclusion, some development prospects are presented : incorporation of ecophysiological data, interface with wood quality, establishment of a data cooperative, and development and wider dissemination of management software.

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