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Forest Science Database

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Abstract

Annual ring counts were made of tree discs from jack pines (Pinus banksiana) in a 100-yr-old stand in Torch River Forest, Saskatchewan, to determine tree ages in a previously published study of the relations among jack pine budworm (Choristoneura pinus) damage, selected tree characteristics and ...

Author(s)
Volney, W. J. A.; Mallett, K. I.
Citation
Canadian Journal of Forest Research, 1992, 22, 12, pp 2011-2013
Abstract

The measurement of annual rings is considered, and the relationship between ring width, ring radius and ring index is discussed. A simple method is described for determining the equation for the age trend of rings. The account is illustrated by examples from Swedish pines [Pinus sylvestris],...

Author(s)
Svenonius, B.; Olausson, E.
Citation
Geologiska Foreningens i Stockholm Forhandlingar, 1975, 97, 2, pp 174-179
Abstract

Gives equations, derived from increment cores from six 140-year trees of Pinus halepensis, and based on the size, number and rate of increase of cells in an annual ring, geometrically considered, to calculate: the number of cells produced in a year to form a given growth ring; the number of cell...

Author(s)
Luck, H. B.; Serre, F. et al
Citation
Compte Rendu Hebdomadaire des Seances de l'Academie des Sciences, 1970, 270D, 16, pp 1996-9