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  간벌이 한국산 잣나무의 용재품질에 미치는 영향 Effects of thinning on the timber quality of Pinus koraiensis
  글쓴이 : 관리자     날짜 : 11-01-12 23:06     조회 : 8456    
간벌이 한국산 잣나무의 용재품질에 미치는 영향 Effects of thinning on the timber quality of Pinus koraiensis grown in Korea <Mokchae Konhak 31(2):16~23, 2003> Corresponding author shchong@foa.go.kr

  The study was performed to obtain basic data for high quality timber production and efficient utilization of weeds by investigating the effects of thinning on timber quality of domestic Korean pine(Pinus koraiensis Sieb. et Zucc.) planted. The results of this study were summarized as follows;
  Comparing the appearance of knot per one meter on log surface, the heavy thinned trees contained less knots than non-thinned ones. And the ratio of dead knots was decreased in heavy thinned trees compared with the non-thinned ones, but the knot size was increased. The inclination angle of dead knot is larger than that of live knot. The crooked logs in heavy thinning plot appeared less than those in non-thinning plot. In heavy thinning plot, the log circle percentage of cross section and the ratio of clear lumber were increased, compared with in non-thinning one. The grade of log was the highest in heavy thinning plot.

Keywords: thinning, Pinus koraiensis Sieb. et. Zucc., crooked log, clear lumber, grade

   

 
   

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