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Stochastic modelling of tree annual shoot dynamics

De Reffye Philippe, Kang Meng Zhen, Hua Jing, Auclair Daniel. 2012. Stochastic modelling of tree annual shoot dynamics. Annals of Forest Science, 69 (2) : pp. 153-165.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : FORESTRY

Abstract : Context Modelling annual shoot development processes is a key step towards functional-structural modelling of trees. Various patterns of meristem activity can be distinguished in tree shoots, with active periods of phytomer production followed by rest periods. This approach has seldom been integrated in functional-structural tree models. & Aims This paper presents theoretical research work on modelling and computation of the dynamics of tree annual shoots using stochastic processes with various development patterns: continuous or rhythmic, monocyclic or polycyclic, "seasonal" or "a-seasonal", with preformation or neoformation produced from meristem functioning. & Methods The renewal theory is used to compute stochastic aspects of phytomer production, resulting from meristem extension or rest periods and meristem mortality. & Results Continuous development can be modelled with a Bernoulli process, while rhythmic development is modelled by alternation between extension and rest periods, the duration of each period following specific distributions. & Conclusion The application of such stochastic modelling is the estimation of organ production during tree development as a component of the demand in functional- architectural tree models, used for computing biomass production and partitioning. (Résumé d'auteur)

Mots-clés Agrovoc : Arbre, Croissance, Cycle de développement, Modèle mathématique, Dynamique des populations, Biomasse, Production forestière, Méristème, Photosynthèse, Développement biologique, Anatomie végétale, Port de la plante

Mots-clés géographiques Agrovoc : Japon, Finlande, France

Mots-clés complémentaires : Biomodélisation, Architecture des arbres

Classification Agris : U10 - Mathematical and statistical methods
F62 - Plant physiology - Growth and development
F50 - Plant structure
K10 - Forestry production

Champ stratégique Cirad : Hors axes (2005-2013)

Auteurs et affiliations

  • De Reffye Philippe, CIRAD-BIOS-UMR AMAP (FRA)
  • Kang Meng Zhen, Institute of Automation (CHN)
  • Hua Jing, Institute of Automation (CHN)
  • Auclair Daniel, INRA (FRA)

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Source : Cirad - Agritrop (https://agritrop.cirad.fr/563470/)

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