Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Microfibril Angle Characteristics of Korean Pine Trees from Depending on Provinces

  • KIM, Ji-Yeol (Department of Wood and Paper Science, Chungbuk National University) ;
  • KIM, Soo-Chul (Department of Conservation Science, Korea National University of Cultural Heritage) ;
  • KIM, Byung-Ro (Department of Wood and Paper Science, Chungbuk National University)
  • Received : 2020.02.03
  • Accepted : 2020.06.26
  • Published : 2020.07.25
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Abstract

This study investigated the characteristics of microfibril angle(MFA) in order to see if there was any difference in pine tree lumber quality among the three mountain areas surrounding the Taebaek Mountains in Korea - Yeongdong (Goseong-gun), Yeongseo (Hongcheon-gun) and Yeongnam (Bonghwa-gun). Pine trees of each mountain area were divided into earlywood and latewood in relation to heartwood part (1959 ~ 1961, 3 annual rings) and sapwood part (2002 ~ 2004, 3annual rings), and measured at tangential section. The microfibril angle showed significant differences between mountain areas. In general, Goseong Mountain was found to have 37.35°, followed by Hongcheon Mountain 32.42° and Bonghwa Mountain 25.75°, in order. The sapwood part had larger angle than heartwood part; and earlywood, than latewood. Variation within a single annual ring tended to be smaller from earlywood toward latewood.

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References

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