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Issue 12 (4) 2013 pp. 43-53

Arkadiusz Tomczak

Poznań University of Life Sciences

SELECTED TECHNICAL PARAMETERS OF JUVENILE WOOD IN SCOTS PINE (PINUS SYLVESTRIS L.) – VARIATION BETWEEN SOCIAL CLASSES OF TREE POSITION IN THE DOMINANT STAND

Keywords: social classes of tree position in the stand, basic density, compressive strength along the grain, static bending strength, modulus of elasticity
Abstract:

The study compared basic density, compressive strength along the grain, static bending strength and modulus of elasticity of juvenile wood in pines from different Kraft’s classes. Analyses were conducted in 8 mature pine monocultures in north-western Poland. In each experimental site a total of 9 trees were selected, thus the analyses were conducted on 72 model trees (with 24 for each social class of tree position in the stand). The highest values of analysed technical parameters were recorded for wood of co-dominant trees, the lowest were found for predominant trees, while intermediate values were recorded for wood of dominant trees. All the reported differences were statistically significant. Similar dependencies were observed when comparing wood from different sections of stems, with the greatest disproportions, frequently statistically significant, found in their lower sections.

pub/.pdf Full text available in english in Adobe Acrobat format:
http://www.forestry.actapol.net/pub/4_4_2013.pdf

For citation:

MLA Tomczak, Arkadiusz. "Selected technical parameters of juvenile wood in Scots pine (Pinus sylvestris L.) – variation between social classes of tree position in the dominant stand." Acta Sci.Pol. Silv. 12.4 (2013): 43-53.
APA Tomczak A. (2013). Selected technical parameters of juvenile wood in Scots pine (Pinus sylvestris L.) – variation between social classes of tree position in the dominant stand. Acta Sci.Pol. Silv. 12 (4), 43-53
ISO 690 TOMCZAK, Arkadiusz. Selected technical parameters of juvenile wood in Scots pine (Pinus sylvestris L.) – variation between social classes of tree position in the dominant stand. Acta Sci.Pol. Silv., 2013, 12.4: 43-53.
Streszczenie w języku polskim:
http://www.forestry.actapol.net/tom12/zeszyt4/streszczenie-4.html