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Development of a Wood Recovery Estimation Model for the Tree Conversion Processes of Larix kaempferi

낙엽송 제재에 따른 이용재적 산출 모델의 개발

  • Kwon, Kibeom (Department of Forest Sciences, Seoul National University) ;
  • Han, Hee (Department of Forest Sciences, Seoul National University) ;
  • Seol, Ara (Department of Forest Sciences, Seoul National University) ;
  • Chung, Hyejean (Department of Forest Sciences, Seoul National University) ;
  • Chung, Joosang (Department of Forest Sciences, Seoul National University)
  • Received : 2013.05.08
  • Accepted : 2013.11.06
  • Published : 2013.12.31

Abstract

This study was conducted to develop a simulation model for estimating the amount of such products as round wood, dimension lumber and the residual wood biomass produced by processing the individual trees of Larix kaempferi. In the model, the stem volume is assessed using the taper equations of the species to estimate the stem forms. Then, the model simulates the conversion processes of logs to round wood or lumber and assesses the maximum amount of the wood products by the lumber dimensions or round wood size. Also the model provides information on the amount of residuals for kerf and slabs produced on the conversion processes for sawn timber or round wood. According to the results of an application of the model to a L. kaempferi process, the trees greater than 12 cm of DBH can be converted to logs for lumber or round wood production. For the trees, of which DBH is available for log conversion, the maximum amount of final products by dimensions were analyzed. In this analysis, production of the bigger dimension lumber was assumed to be preferred to that of the smaller or round wood. This model can be used for assesment of forest economic value through estimation of merchantable volume for the trees, and assessment of mill residues which has the potential to provide significant amount of feedstock for bioenergy production as well.

본 연구는 낙엽송 개체목의 가공처리 과정에서 생산되는 제재목 및 제재 부산물의 양을 분석하기 위한 시뮬레이션 모델을 개발하고자 수행되었다. 이 모델에서는 수간곡선 추정식을 이용하여 개체목의 전간재적을 산출하고 절동된 원목에 대한 목재 가공 시뮬레이션을 통해 판재 및 각재, 원주목의 규격에 따른 최대 생산가능량을 예측하였다. 또한 제재목 가공처리 과정에서 생산되는 톱밥 및 죽데기의 잔존재적에 대한 분석을 수행하였다. 그 결과 흉고직경 12 cm 이상부터 제재목의 생산이 가능한 것으로 나타났고, 제재목의 생산이 가능한 경우에는 보다 큰 규격의 판재와 각재를 생산하는 것이 상대적으로 작은 규격의 판재와 각재 혹은 원주목을 생산하는 것에 비해 더 많은 생산량을 얻을 수 있었다. 향후 이 모델은 낙엽송의 이용재적 산출을 통한 산림의 경제적 가치평가는 물론, 최근 목질계 바이오에너지 자원으로서 그 중요성이 점차 높아지고 있는 톱밥과 같은 제재 부산물의 양을 예측하는 데에도 활용될 수 있을 것이다.

Keywords

References

  1. Aldred, A.H. and Alemdag, I.S. 1988. Guidelines for forest biomass inventory. Canadian Forest Service, Petawawa National Forestry Institute. Information Report PIX-077. pp. 115.
  2. Hallock, H. and Lewis, D.W. 1971. Increasing softwood dimension yield from small logs-best opening face. USDA Research paper FPL 166: 1-11.
  3. Hallock, H. and Lewis, D.W. 1976. Is there a "best" sawing method?. USDA Research paper FPL 280: 1-12.
  4. Korea Forest Service. 2000. Bark volume percent table. Forest & Forestry Technique. pp. 261.1.
  5. Korea Forest Service. 2010. Annual report of the centre for climate change forestry research. pp. 754.
  6. Kozak, A. 1988. A variable-exponent taper equation. Canadian Journal of Forest Research 18: 1363-1368. https://doi.org/10.1139/x88-213
  7. Kwon, S.D. 2003. Development of a simulation model for stand-level forest management. Ph. D. Thesis. Seoul National University. pp. 113.
  8. Kwon, S.D., Kim, H.H., and Chung, J.S. 2007. Estimation of merchantable volume and yield using a sten shape simulation. Journal of Korean Forest Society 96(3): 362-368.
  9. Lee C.T., Kwon, J.T., and Han, G.J. 1989. A demonstration test of the domestic timber using movable sawing machine. Practical Research Report of Korea Forest Research Institute. pp. 195-213.
  10. Lee, C.T., Chung, D.J., and Park, J.H. 1986. The utilization of Alnus species for furniture. Research Report of Korea Forest Research Institute 33: 110-116.
  11. Lee, C.T., Chung, D.J., Park, J.H., and Kim, S.K. 1987. Sawing practice of twin band saw to small-thinning timbers. Research Report of Korea Forest Research Institute 35: 98-103.
  12. Lee, C.T., Chung, D.J., Lee, Y.D., and Cho, J.M. 1985. A study on sawing and utilization of lumber for Robinia pseudoacacia. Research Report of Korea Forest Research Institute 32: 17-23.
  13. Lee, K.H., Son, Y.M., Rho, D.K., and Kwon, S.D. 2002. Stem weight equations for six major tree species in Korea. Journal of Korean Forest Society 91(2): 206-212.
  14. Lewis, D.W. 1985. Sawmill simulation and the best opening face system-a user's guide. USDA General Technical Report FPL 48: 1-29.
  15. Maclean, G.A. and Martin, G.L. 1984. Merchantable timber volume estimation using cross-sectional photogrammetric and densitometric methods. Canadian Journal Forest Research 14(6): 803-810. https://doi.org/10.1139/x84-142
  16. McAdoo, J.C. 1969. Computer simulation of small-log mill processing. Forest Products Journal 19(4): 34-35.
  17. McTague, J.P. and Bailey, R.L. 1987. Simultaneous total and merchantable volume equations and a compatible taper function for loblolly pine. Canadian Journal Forest Research 17(1): 87-92. https://doi.org/10.1139/x87-015
  18. Newberry, J.D., Burkhart, H.E. and Amateis, R.L. 1989. Individual tree merchantable volume to total volume ratios based on geometric solids. Canadian Journal Forest Research 19(5): 679-683. https://doi.org/10.1139/x89-105
  19. Son, Y.M., Lee, K.H., Kwon, S.D., Pyo, J.K., Im, S.S., and Youn, H.J. 2012. Timber volume. biomass & yield table. Korea Forest Service, Daejeon. pp. 261.
  20. Son, Y.M., Lee, K.H., Lee, W.K., and Kwon, S.D. 2002. Stem taper equations for six major tree species in Korea. Journal of Korean Forest Society 91(2): 213-218.

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