Preliminary communication

https://doi.org/10.5552/drind.2012.1140

Shrinkage of Grand Fir Wood and its Variability within the Stem

Jiří Lukášek ; Faculty of Forestry and Wood Sciences,Czech University of Life Sciences Prague, Prague, Czech Republic
Aleš Zeidler ; Faculty of Forestry and Wood Sciences,Czech University of Life Sciences Prague, Prague, Czech Republic
Štefan Barcík ; Faculty of Forestry and Wood Sciences,Czech University of Life Sciences Prague, Prague, Czech Republic

Abstract

This study presents the results of the experiment focused on assessment of the shrinkage of Grand fir (Abies grandis /Douglas/ Lindl.) wood and its variability in relation to the position in the stem. The examined sample trees came from the Černokostelecka Area in the Czech Republic. Tangential shrinkage was 7.1 %, radial 3.3 % and volumetric shrinkage 10.5 %. The results show evident influence of the horizontal position on the evaluated features. The lowest shrinkage values are attained close to the pith; shrinkage toward the bark shows a rising trend. In terms of vertical position, the distribution of shrinkage in the stem did not show any apparent trend. Although the dependence of shrinkage on density proved to be statistically significant, density explains only a small portion of the shrinkage variability.

Keywords

Grand fir (Abies grandis /Douglas/ Lindl.); shrinkage; density; introduced species; variability

Hrčak ID:

83488

URI

https://hrcak.srce.hr/83488

Publication date:

25.6.2012.

Article data in other languages: croatian

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