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황장목의 부후 및 흰개미 저항성

Decay and Termite Resistance of Yellow-Hearted Pine (Pinus densiflora for. erecta Uyeki)

  • 이애희 (강원대학교 산림환경과학대학) ;
  • 장재혁 (강원대학교 산림환경과학대학) ;
  • 황원중 (국립산림과학원 임산공학부) ;
  • 김남훈 (강원대학교 산림환경과학대학)
  • Lee, Ae-Hee (College of Forest & Environmental Sciences, Kangwon National University) ;
  • Jang, Jae-Hyuk (College of Forest & Environmental Sciences, Kangwon National University) ;
  • Hwang, Won-Joung (Department of Forest Product Engineering, Korea Forest Research Institute) ;
  • Kim, Nam-Hun (College of Forest & Environmental Sciences, Kangwon National University)
  • 투고 : 2016.05.25
  • 심사 : 2016.10.12
  • 발행 : 2017.01.25

초록

황장목(黃腸木)은 적황색을 띠는 심재부의 비율이 높고 연륜폭이 매우 조밀하며 최소 수령이 100년 이상 되는 귀중한 소나무 자원이다. 조선시대에는 황장목을 궁궐, 사찰 등 중요 건축물에 사용하였다. 하지만 황장목의 재질특성에 관한 연구는 매우 부족한 실정이다. 본 연구에서는 황장목의 천연내구성을 검토하기 위하여 부후균 및 흰개미 저항성을 조사하였다. 공시균은 갈색부후균(Fomitopsis palustris)과 백색부후균(Trametes versicolor) 균주를 사용하였고, 공시 흰개미는 일본흰개미(Reticulitermes speratus)를 사용하였다. 그 결과, 갈색 및 백색부후균에 의한 중량감소율은 심재부에서 3.7~5.6%, 변재부에서는 16.1~26.3%로 나타났다. 또한, 흰개미 사충률은 심재부에서 약 47%로 매우 높게 나타났다. 이러한 결과를 통하여 황장목의 심재부는 부후균 및 흰개미에 대한 저항력이 뛰어난 것을 알 수 있었다.

Yellow-hearted pine (YHP; Pinus densiflora for. erecta Uyeki) is one of the Red pine species and has extremely narrow growth ring and high ratio of heartwood growing in Korea. It has been used for valuable wooden constructions as palace and temple for royal family since the Joseon Dynasty period. However, scientific information on the wood properties of YHP is still very lacking. This study was carried out to investigate natural durability of YHP to fungi and termites attack. Examination of anti-fungal and anti-termite properties of YHP was performed at indoor condition using brown-rot fungi (Fomitopsis palustris), white-rot fungi (Trametes versicolor), and termite (Reticulitermes speratus). The results showed that weight loss of the heartwood in YHP after fungi and termite test was much lower than those of the sapwood in YHP. Furthermore, the highest mortality of termite was obtained from the heartwood of YHP. Consequently, it is clearly revealed that the heartwood of YHP has excellent durability against brown- and white-rot fungi and termite.

키워드

참고문헌

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