Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Mechanical Properties of Cryptomeria japonica by the Differences of Stand Characteristics in Southern Region of Korea

남부지역 삼나무의 임분 특성에 따른 역학적 특성

  • Hong, Nam-Euy (College of Agriculture & Life Science, IALS, Gyeongsang National University) ;
  • Won, Kyung-Rok (College of Agriculture & Life Science, IALS, Gyeongsang National University) ;
  • Yoo, Byung-Oh (Southern Resources Research Center, Korea Forest Research Institute) ;
  • Jung, Soo-Yung (Southern Resources Research Center, Korea Forest Research Institute) ;
  • Byeon, Hee-Seop (College of Agriculture & Life Science, IALS, Gyeongsang National University)
  • 홍남의 (경상대학교 농업생명과학대학, 농업생명과학연구원) ;
  • 원경록 (경상대학교 농업생명과학대학, 농업생명과학연구원) ;
  • 유병오 (국립산림과학원 남부산림자원 연구소) ;
  • 정수영 (국립산림과학원 남부산림자원 연구소) ;
  • 변희섭 (경상대학교 농업생명과학대학, 농업생명과학연구원)
  • Received : 2014.12.12
  • Accepted : 2015.02.03
  • Published : 2015.05.25
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Abstract

Mechanical properties of woods are easily affected by the differences of site environment such as soil and climate changes. In this study, the relationship between mechanical properties and growth factors for Cryptomeria japonica stands in Jeollanam-do Province, Gyeongsangnam-do Province and Je-ju island was analyzed. From these plot data, bending strength, compressive strength, and shear strength were analyzed by Duncan's new multiple range test. The results of Duncan's new multiple range test analysis indicated that bending strength, compression strength, and shear strength were positively related to tree mean height, and stem number per ha, respectively, while they were inversely proportional to DBH (diameter at breast height), elevation, and soil drainage. As a result of this study, there are high correlations between mechanical properties of wood and stand characteristics of Cryptomeria japonica by the region, this findings are very useful to apply the silvicultural treatment system to produce high quality timber as a basic data on this species (distributed in southern region of Korea).

목재의 역학적 특성은 생육지의 토양조건과 기후변화 등의 환경적 요인에 의해 주로 영향을 받게 된다. 본 연구에서는 우리나라 남부지역에 많이 분포하고 있는 삼나무에 대하여 경남, 전남, 제주 세 지역 간, 그리고 해당 임분의 생육특성에 따른 목재의 역학적 특성차이를 각각 비교분석하고자 하였다. 각 지역별 표준지의 삼나무 임분 특성과 목재의 역학적 특성을 비교분석한 결과, 휨강도, 종압축강도, 전단강도는 수고 및 입목본수/ha와 정의 상관관계가 있었으나, 흉고직경, 표고 및 토양배수와는 부의 상관관계를 보였다. 따라서 우리나라 남부지역에 위치한 삼나무는 해당임지의 임분 특성과 역학적 특성 간에 밀접한 상관관계를 보이고 있으므로 본 연구의 결과는 고품질 목재생산을 위한 적절한 시업체계와 육림방법을 제시하는데 기초자료로서 그 활용가치가 높을 것으로 판단된다.

Keywords

References

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