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Relationship between branch-scar parameters and knot features of oriental beech (Fagus orientalis Libsky)
Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Wood Science and Engineering.ORCID iD: 0000-0002-4526-9391
Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran.
2018 (English)In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 13, no 2, p. 117-120Article in journal (Refereed) Published
Abstract [en]

The classification of roundwood is inextricably linked to the measurement of a particular single wood defect. The appearance, location, and number of defects are important in the quality evaluation of logs and sawn timber, and the most important defects are knots. The purpose of this study was to investigate the relationship between the appearance of branch scars and features of the related knot inside oriental beech logs, and to model the relationship between well-defined branch-scar and knot parameters. One hundred and fifty knots in 15 stems of oriental beech trees were studied. Image analysis software was used to measure the branch-scar and knot features. The results showed a significant positive correlation between the branch-scar parameter “moustache length” and the knot length. The ratio of branch-seal length to width was found to be a good estimator of the stem diameter at the time of knot occlusion and the amount of clear wood between the knot occlusion and the bark. The relationship obtained for the oriental beech stem radius at time of knot occlusion confirms relationship reported for European beech (Fagus sylvatica L.).

Place, publisher, year, edition, pages
Taylor & Francis, 2018. Vol. 13, no 2, p. 117-120
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-67644DOI: 10.1080/17480272.2018.1424731Scopus ID: 2-s2.0-85042445797OAI: oai:DiVA.org:ltu-67644DiVA, id: diva2:1182589
Note

Validerad;2018;Nivå 2;2018-02-19 (rokbeg)

Available from: 2018-02-14 Created: 2018-02-14 Last updated: 2018-03-05Bibliographically approved

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