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Issue 6 (3) 2007 pp. 5-15

Anna Barszcz, Krzysztof Michalec

SPRUCE TIMBER QUALITY IN TREES WITH DIFFERENT THICKNESS FROM THE BESKIDY MTS

Keywords: spruce timber, thicker and thinner trees, timber defects
Abstract: An advancing process of ageing of stands in Poland and Europe allows for predicting and increasing in the supply of large-dimension timber. The research compares selected qualitative characteristics of the timber of trees with large breast-height diameters (equal to or larger than 40 cm) with those of thinner trees on the example of Norway spruce from the region of the Beskidy Mts. A group of thicker spruce trees was characterized by a higher overall share of trees with wood defects, including visible knots and symptoms of overgrown knots as well as a smaller share of trees with injuries, rot and curvatures in comparison with the thinner ones. The absolute size of rot on the cross-section of the stem was larger in thicker trees. They were also characterized by a smaller average width of annual rings. The groups compared did not differ significantly as to the height of location of defects situated as first from the stem base.
pub/.pdf Full text available in english in Adobe Acrobat format:
http://www.forestry.actapol.net/pub/1_3_2007.pdf

For citation:

MLA Barszcz, Anna, and Krzysztof Michalec. "Spruce timber quality in trees with different thickness from the Beskidy Mts." Acta Sci.Pol. Silv. 6.3 (2007): 5-15.
APA Barszcz A., Michalec K. (2007). Spruce timber quality in trees with different thickness from the Beskidy Mts. Acta Sci.Pol. Silv. 6 (3), 5-15
ISO 690 BARSZCZ, Anna, MICHALEC, Krzysztof. Spruce timber quality in trees with different thickness from the Beskidy Mts. Acta Sci.Pol. Silv., 2007, 6.3: 5-15.
Streszczenie w języku polskim:
http://www.forestry.actapol.net/tom6/zeszyt3/streszczenie-1.html