Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
권호 표지
DOI QR코드

DOI QR Code

Developing Merchantable Stem Volume Models for Major Commercial Species in South Korea

우리나라 주요 경제수종의 이용재적모델 개발

  • Lee, Daesung (Department of Forest Management, Kangwon National University) ;
  • Lee, Jungho (Department of Forest Management, Kangwon National University) ;
  • Seo, Yeongwan (Institute of Forest Science, Kangwon National University) ;
  • Choi, Jungkee (Department of Forest Management, Kangwon National University)
  • 이대성 (강원대학교 산림경영학과) ;
  • 이정호 (강원대학교 산림경영학과) ;
  • 서영완 (강원대학교 산림과학연구소) ;
  • 최정기 (강원대학교 산림경영학과)
  • Received : 2017.10.19
  • Accepted : 2017.11.15
  • Published : 2017.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

This study was conducted to develop the merchantable stem volume models to predict the volume up to upper diameter or upper height out of the total stem volume, targeting on Pinus densiflora, Pinus koraiensis, and Larix kaempferi in South Korea. The 131 stemmed sample trees for stem analysis were used as the data for developing the models. The six kinds of merchantable volume equations including merchantable volume ratio form, ratio form, and exponential ratio form were examined to develop the best models. The two models were finally selected as the best models to predict the merchantable volume: $V_d=V_t\{{\exp}[{\alpha}_1(d^{{\alpha}_2}/D^{{\alpha}_3})]\}$ for upper diameter and $V_h=V_t\{1+{\beta}_1(P^{{\beta}_2}/H^{{\beta}_3})\}$ for upper height. By rearranging the best model equations, implicit taper functions were derived, and the estimation was performed for the upper height by upper diameter and upper diameter by upper height. Because of not only the high accuracy but also the convenience, the models developed in this study were considered to be easily applicable in the field of forestry.

본 연구는 국내 소나무, 잣나무, 낙엽송을 대상으로 입목의 총재적 중 상부직경 혹은 상부수고까지의 재적을 예측하는 이용재적모델을 개발하고자 수행되었다. 모델개발을 위하여 사용된 자료는 강원 및 경북지역의 소나무림, 잣나무림, 낙엽송림에서 수집한 총 131본의 수간석해목이었으며, 이용재적비율, 단순비율형태, 지수비율형태의 6개 이용재적식을 검토하여 최종모델을 개발하였다. 본 연구의 분석결과, 상부직경까지의 이용재적예측은 지수비율형태인 $V_d=V_t\{{\exp}[{\alpha}_1(d^{{\alpha}_2}/D^{{\alpha}_3})]\}$ 이 상부수고까지의 이용재적예측은 단순비율형태인 $V_h=V_t\{1+{\beta}_1(P^{{\beta}_2}/H^{{\beta}_3})\}$이 최종모델로 선정되었다. 본 연구에서 선정된 2개의 최적모델식을 정리하여 내재간곡선식을 도출하였으며, 이를 활용해 상부직경에 따른 상부수고와 상부수고에 따른 상부직경 예측이 가능하였다. 본 연구결과에서 개발된 모델은 높은 정확도뿐만 아니라 임업현장에서 편리하게 사용할 수 있어 활용도가 높을 것으로 판단된다.

Keywords

References

  1. Amateis, R.L. and Burkhart, H.E. 1987. Cubic-foot volume equations for loblolly pine trees in cutover, site-prepared plantations. Southern Journal of Applied Forestry 11(4): 190-192.
  2. Bullock, B.P. and Burkhart, H.E. 2003. Equations for predicting green weight of loblolly pine trees in the South. Southern Journal of Applied Forestry 27(3): 153-159.
  3. Burkhart, H.E. 1977. Cubic-foot volume of loblolly pine to any merchantable top limit. Southern Journal of Applied Forestry 1(2): 7-9.
  4. Burkhart, H.E. and Tome M. 2012. Modeling Forest Trees and Stands. Springer, New York, NY, pp. 457.
  5. Cao, Q.V. and Burkhart, H.E. 1980. Cubic-foot volume of loblolly pine to any height limit. Southern Journal of Applied Forestry 4(4): 166-168.
  6. Honer, T.G. 1964. The use of height and squared diameter ratios for the estimation of merchantable cubic foot volume. The Forestry Chronicle 40(3): 324-331. https://doi.org/10.5558/tfc40324-3
  7. Kim KD. 2017. Domestic timber distribution condition and implication. Research report. National Institute of Forest Science, Seoul, pp. 16.
  8. Knoebel, B.R., Burkhart, H.E. and Beck, D.E. 1984. Stem volume and taper functions for yellow-poplar in the southern Appalachians. Southern Journal of Applied Forestry 8(4): 185-188.
  9. Korea Forest Research Institute. 2012a. Commercial Tree Species 1 Pinus densiflora. Korea Forest Research Institute, Seoul, pp. 250.
  10. Korea Forest Research Institute. 2012b. Commercial Tree Species 3 Pinus koraiensis. Korea Forest Research Institute, Seoul, pp. 168.
  11. Korea Forest Research Institute. 2012c. Commercial Tree Species 4 Larix kaempferi. Korea Forest Research Institute, Seoul, pp. 180.
  12. Korea Forest Research Institute. 2015. Forest Tree Resources Assessment Program Manual ver 3.0. Korea Forest Research Institute, Seoul, pp. 41.
  13. Korea Forest Service. 2016. The Statistical Yearbook of Forestry 2016. Korea Forest Service, Daejeon, pp. 414.
  14. Kwon, S.D., Kim, H.H. and Chung, J.S. 2007. Estimation of merchantable volume and yield using a stem shape simulation. Journal of Korean Forestry Society 96(3): 362-368.
  15. Kwon, K., Han, H., Seol, A., Chung, H. and Chung, J. 2013. Development of a wood recovery estimation model for the tree conversion processes of Larix kaempferi. Journal of Korean Forest Society 102(4): 484-490. https://doi.org/10.14578/jkfs.2013.102.4.484
  16. Lee, D.S. 2015. Studies on growth models for Larix kaempferi, Pinus koraiensis, and Pinus densiflora in Korea. Master thesis, Kangwon National University, Chuncheon, Korea.
  17. Lee, D. and Choi, J. 2016. Estimating wood weight change on air drying times for three coniferous species of South Korea. Journal of Forest and Environmental Science 32(3): 262-269. https://doi.org/10.7747/JFES.2016.32.3.262
  18. Lee, I., Lee, D., Seo, Y. and Choi, J. 2017a. Log production of major commercial species for sawtimber in Hongcheon region of South Korea. Journal of Forest and Environmental Science 33(3): 233-238. https://doi.org/10.7747/JFES.2017.33.3.233
  19. Lee, D., Seo, Y., and Choi, J. 2017b. Estimation and validation of stem volume equations for Pinus densiflora, Pinus koraiensis, and Larix kaempferi in South Korea. Forest Science and Technology 13(2): 77-82. https://doi.org/10.1080/21580103.2017.1315963
  20. SAS Institute Inc. 2013. SAS/STAT 9.4 User's Guide. SAS Institute Inc., Cary, NC, USA.
  21. Sherrill, J.R., Bullock, B.P., Mullin, T.J., McKeand, S.E. and Purnell, R.C. 2011. Total and merchantable stem volume equations for midrotation loblolly pine (Pinus taeda L.). Southern Journal of Applied Forestry 35(3): 105-108.
  22. Son, Y.M., Kang, J.T. Won, H.K. and Jeon, J.H. 2016. Estimation of merchantable volume ratio by major species. Journal of Korean Forestry Society 105(3): 330-335. https://doi.org/10.14578/jkfs.2016.105.3.330
  23. Tasissa, G., Burkhart, H.E. and Amateis, R.L. 1997. Volume and taper equations for thinned and unthinned loblolly pine trees in cutover, site-prepared plantations. Southern Journal of Applied Forestry 21(3): 146-152.