Assessment of the three-dimensional architecture of walnut trees using digitising

Abstract : A method for the measurement of the three-dimensional (3D) architecture of trees was applied to describe two 2O-year-old walnut trees, one of them is a timber tree while the other is a fruit tree. The method works at the shoot level and simultaneously describes the plant topology, the plant geometry and the shoot morphology. The method uses a 3D digitiser (3SPACE@ FASTRAK@, Polhemus Inc.) associated with software DiplAmi designed for digitiser control and data acquisition management. Plant images may be reconstructed from the data set by using the ray tracing software FOV-Ray. Visual comparison between photographs of the walnut trees and images synthesised from digitising was satisfactory. Distribution of basal shoot diameter, as well as leaf area and fruit distributions for both the timber and the fruit tree were non-uniformly distributed in the crown volume. Gradients were likely to be related to the light distribution within the tree. This is in agreement with previous experimental results on several tree species, and also with the predictions of tree architecture models based on light-vegetation interactions.
Type de document :
Article dans une revue
Silva Fennica, Suomen Metsätieteellinen Seura ry, 1997, 31 (3), pp.265-273
Liste complète des métadonnées

https://hal.inria.fr/hal-00827488
Contributeur : Christophe Godin <>
Soumis le : mercredi 29 mai 2013 - 11:33:33
Dernière modification le : jeudi 11 janvier 2018 - 06:15:35

Identifiants

  • HAL Id : hal-00827488, version 1

Citation

Hervé Sinoquet, Pierre Rivet, Christophe Godin. Assessment of the three-dimensional architecture of walnut trees using digitising. Silva Fennica, Suomen Metsätieteellinen Seura ry, 1997, 31 (3), pp.265-273. 〈hal-00827488〉

Partager

Métriques

Consultations de la notice

219