Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
권호 표지
DOI QR코드

DOI QR Code

Mechanical Characteristics of Korean Red Pines according to Provinces (Goseong, Hongcheon and Bonghwa-gun)

한국산 소나무의 지역(고성, 홍천 및 봉화군)에 따른 역학적 특성

  • Kim, Min-Ji (Department of Forest Products, National Institute of Forest Science) ;
  • Kim, Ji-Yeol (Department of Wood and Paper Science, Chungbuk National University) ;
  • Kim, Byung-Ro (Department of Wood and Paper Science, Chungbuk National University)
  • Received : 2020.07.30
  • Accepted : 2020.08.12
  • Published : 2020.09.25
Download PDF
⟨ Previous Next ⟩

Abstract

This study investigated mechanical characteristics of pine trees in Yeongdong (Goseong-gun), Yeongseo (Hongcheon-gun), and Yeongnam (Bonghwa-gun) to define differences in the material quality among pine trees of the three regions. The compressive strength, hardness and shear strength of pine trees of each region were measured. There were no differences in the compressive strength of the juvenile woods among the regions, while the heartwood and sapwood in Bongwha generally showed the highest compressive strength followed by those in Hongcheon and in Goseong. The hardness of the cross-section of pines in Bonghwa was the highest, and in terms of the hardness of the radial and tangential sections, pines in Goseong topped the list.. There were no difference among heartwoods of each region in terms of the shear strength, but, but sapwood from Bonghwa had higher shear strength than those of the other two regions, which may be attributed to differences in tracheid length and microfibril angle among pines in each region. This study identifies the quality differences among pines of different region, and therefore, is expected to add value by helping choose the domestic pine tree material effectively and selectively, and also select a plus tree.

본 연구는 태백산맥을 기준으로 영동(고성군), 영서(홍천군), 영남(봉화군) 세 지역 간 소나무의 재질 차이 유무를 알기 위해 역학적 특성을 조사하였다. 측정한 역학적 성질은 압축강도, 경도 및 전단강도였다. 압축강도는 미성숙재에서 지역 간 차이가 없으며, 심재부와 변재부에서는 봉화, 홍천, 고성군 순으로 크게 나타났다. 경도는 횡단면에서는 봉화군이, 방사 및 접선 단면에서는 고성군이 크게 나타났다. 전단강도는 심재부에서는 차이가 없었으며, 변재부에서는 봉화군이 고성, 홍천군에 비해 높게 나타났다. 이는 지역 간 가도관장, 마이크로피브릴경각 차이에 의한 것으로 생각된다. 지역 간 재질특성의 차이 규명으로 국내산 소나무재를 효율적이고 선택적으로 사용하여 부가가치를 높이고, 또한 우수한 수형목을 선발하는데 활용될 수 있을 것으로 생각한다.

Keywords

References

  1. Cho, J.M. 1994. Wood properties and uses of the major tree species grown in Korea. Forestry Research Institute. Research Material No. 95. Seoul, Korea.
  2. Han, G.S. 2015. Study on improvement site management system and supply system of timber for repairing culture properties. Cultural Heritage Administration. Daejeon Korea.
  3. Han, M.S., Lee, C.J., Park, B.S., Kim, B.R. 2014. Studies on wood quality and growth of quercus rubra (24 Years old) in Korea: Physical and mechanical properties. Journal of the Korean Wood Science and Technology 42(3): 327-338. https://doi.org/10.5658/WOOD.2014.42.3.327
  4. Han, Y.J., Lee, H.M., Eom, C.D. 2016. Physical and mechanical properties of Korean red pine wood from different growth sites and correlations between Them. Journal of the Korean Wood Science and Technology 44(5): 695-704. https://doi.org/10.5658/WOOD.2016.44.5.695
  5. Hiller, C.H. 1964. Pattern of variation of fibril angle within annual rings of pinus attenuradiata. Res. Note FPL-034, U.S. Department of Agriculture, Forest Service, Forest Products Laboratory, Madison, Wisconsin.
  6. Jeong, G.H., Kim. B.R. 2015. Wood quality and growth of alnus glutinosa (L.) gaertn. in Korea: Compressive and bending strength properties. Journal of the Korean Wood Science and Technology 43(3): 287-294. https://doi.org/10.5658/WOOD.2015.43.3.287
  7. Kang, C.W., Kim, N.H., Kim, B.R., Kim, Y.S., B, H.S., Soe, W.T., Yoe,. H.M., Ho, S.W., Lee, W.H., Lee, H.Y. 2008. wood physics and mechanical. Hyangmoonsa, Seoul Korea.
  8. Kim, B.R., Min, D.S. 1999. Studies on variability of wood properties in stem of pinus koraiensis (III): Variations in tracheid length and width, microfibril angle and compression strength in the longitudinal direction. Journal of the Korean Forest Energy 18(1): 1-5.
  9. Kim, M.J., Kim, B.R. 2018. Physical characteristics of Korean red pines according to provinces (Goseong, Hongcheon and Bonghwa-gun). Journal of the Korean Wood Science and Technology 46(5): 437-448. https://doi.org/10.5658/WOOD.2018.46.5.437
  10. Kim, J.Y., Kim, S.C., Kim, B.R. 2020. Microfibril angle characteristics of Korean pine trees from depending on provinces. Journal of the Korean Wood Science and Technology 48(4): 569-576. https://doi.org/10.5658/wood.2020.48.4.569
  11. Kim, M.J., Seo, J.W., Kim, B.R. 2018. Anatomical characteristics of Korean red pines cording to provinces. Journal of the Korean Wood Science and Technology 46(1): 100-106. https://doi.org/10.5658/WOOD.2018.46.1.100
  12. Koch, P. 1985. Utilization of hardwoods growing on southern pine sites. vol. III. products and prospective. US Department of Agriculture Forest Service Handbook No. 605. Washington DC, USA.
  13. Oh, S.W. 1997. Original articles: Relationship between compression strength parallel to grain and anatomical characters in pinus densiflora S. et. Z.. Journal of the Korean Wood Science and Technology 25(2): 27-32.
  14. Park, B.S., Park, J.H., Han, S.U. 2006. Variation of material properties of Korean red pine of superior families. Journal of the Korean Forest Energy 25(2): 9-15.
  15. Rlee. S.M., Kim. B.R. 2005. Studies on variability of wood properties within stem of larix kaemferi (2): Difference in tracheid length and width, microfibril angle, and strength in south and north sides of stem. Journal of the Korean Wood Science and Technology 33(1): 21-28.
  16. Watanabe, H., Tsutsumi, J., Kojima, K. 1963. Studies on juvenil wood. I. Experiment on stems of sugi trees (Crytomeria japonica D. Don). Mokuzai Gakkaishi 9(6): 225-230.