Canadian Forest Service Publications

À propos de l'âge du sapin baumier et de sa détermination. 1981. Zarnovican, R. Canadian Journal of Forest Research 11(4) : 805-811.

Year: 1981

Issued by: Laurentian Forestry Centre

Catalog ID: 14295

Language: French

Availability: PDF (request by e-mail)

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Abstract

A study of 162 dominant balsam-fir trees was conducted to determine the length of the juvenile growth stage. Results indicated that the length of this stage is less than 10 years in a plot naturally regenerated following clear-cutting, and the effect of this period on tree age disappears when the trees reach a height of 30 cm. However, with adult trees from various sources, this juvenile growth stage can last up to 50 years as well as affect trees of up to 2.4 m in height, and therefore, the age of the tree as determined by dbh. After comparing the growth-time interval with height at time t3 and time t3, the results of this field study suggest that the growth-time interval must be equal or less than 7 years for tree age as determined by dbh to be unaffected by suppression.