NDLI: Patterns of longitudinal and tangential maturation stresses in Eucalyptus nitens plantation trees

Content Provider	Springer Nature Link
Author	Clair, Bruno Alteyrac, Jérôme Gronvold, Arthur Espejo, Jaime Chanson, Bernard Alméras, Tancrède
Copyright Year	2013
Abstract	Tree orientation is controlled by asymmetric mechanical stresses set during wood maturation. The magnitude of maturation stress differs between longitudinal and tangential directions, and between normal and tension woods.We aimed at evaluating patterns of maturation stress on eucalypt plantation trees and their relation with growth, with a focus on tangential stress evaluation.Released maturation strains along longitudinal and tangential directions were measured around the circumference of 29 Eucalyptus nitens trees, including both straight and leaning trees.Most trees produced asymmetric patterns of longitudinal maturation strain, but more than half of the maturation strain variability occurred between trees. Many trees produced high longitudinal tensile stress all around their circumference. High longitudinal tensile stress was not systematically associated with the presence of gelatinous layer. The average magnitude of released longitudinal maturation strain was found negatively correlated to the growth rate. A methodology is proposed to ensure reliable evaluation of released maturation strain in both longitudinal and tangential directions. Tangential strain evaluated with this method was lower than previously reported.The stress was always tensile along the longitudinal direction and compressive along the tangential direction, and their respective magnitude was positively correlated. This correlation does not result from a Poisson effect but may be related to the mechanism of maturation stress generation.
Starting Page	801
Ending Page	811
Page Count	11
File Format	PDF
ISSN	12864560
Journal	Annals of Forest Science
Volume Number	70
Issue Number	8
e-ISSN	1297966X
Language	English
Publisher	Springer Paris
Publisher Date	2013-09-19
Publisher Institution	Institut National de la Recherche Agronomique (INRA)
Publisher Place	Paris
Access Restriction	Subscribed
Subject Keyword	Longitudinal maturation stress Tangential maturation stress Maturation strain Tension wood G-layer Eucalyptus nitens Forestry Wood Science & Technology Forestry Management Tree Biology Environment
Content Type	Text
Resource Type	Article
Subject	Ecology Forestry

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