Log Production of Major Commercial Species for Sawtimber in Hongcheon Region of South Korea
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참고문헌
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초록
This study was carried out to figure out the number of logs for sawtimber by DBH and height class and to compare merchantable volume ratio by categorizing into sawtimber, lagging board and pulpwood, and others for Pinus densiflora, Pinus koraiensis, and Larix kaempferi. Logs for sawtimber were hardly produced in small DBH class of three species, but produced evidently from medium DBH class. In large DBH class, the number of logs for sawtimber were noticeably different among species: 4.3 logs for L. kaempferi, 2.6 logs for P. densiflora, and 1.0 logs for P. koraiensis on average. Similarly, merchantable volume ratio for sawtimber were largely different among species in large DBH class with higher than 15 m: 82% logs for L. kaempferi, 60% logs for P. densiflora, and 44% logs for P. koraiensis. When compared to the upper diameter and upper height by species with regard to the last log of a tree produced for sawtimber, upper diameter was smallest with 14.1 cm and upper height was highest with 12.2 m in L. kaempferi. Overall, L. kaempferi was considered as the more commercial species for sawtimber production than P. densiflora and P. koraiensis.
Abstract
This study was carried out to figure out the number of logs for sawtimber by DBH and height class and to compare merchantable volume ratio by categorizing into sawtimber, lagging board and pulpwood, and others for Pinus densiflora, Pinus koraiensis, and Larix kaempferi. Logs for sawtimber were hardly produced in small DBH class of three species, but produced evidently from medium DBH class. In large DBH class, the number of logs for sawtimber were noticeably different among species: 4.3 logs for L. kaempferi, 2.6 logs for P. densiflora, and 1.0 logs for P. koraiensis on average. Similarly, merchantable volume ratio for sawtimber were largely different among species in large DBH class with higher than 15 m: 82% logs for L. kaempferi, 60% logs for P. densiflora, and 44% logs for P. koraiensis. When compared to the upper diameter and upper height by species with regard to the last log of a tree produced for sawtimber, upper diameter was smallest with 14.1 cm and upper height was highest with 12.2 m in L. kaempferi. Overall, L. kaempferi was considered as the more commercial species for sawtimber production than P. densiflora and P. koraiensis.
참고문헌 (17)
- Choi J, "Modeling trends in stem quality characteristics of loblolly pine trees in unthinned plantations", Can J For Res, 38, pp.1446~1457 (2008)
- Deadman MW, "A method for assessment of recoverable volume by log types", N. Z. J For Sci, 8, pp.225~239 (1979)
- "2015 statistical yearbook" (2016)[URL]
- Domestic timber distribution condition and implication. Research report, "Kim KD.", National Institute of Forest Science, 16~ (2017)
- Korea Forest Research Institute., "Commercial Tree Species 1Pinus densiflora", Korea Forest Research Institute, 250~ (2012)
- Korea Forest Research Institute., "Commercial Tree Species 3Pinus koraiensis", Korea Forest Research Institute, 168~ (2012)
- Korea Forest Research Institute., "Commercial Tree Species 4Larix kaempferi", Korea Forest Research Institute, 180~ (2012)
- Korea Forest Research Institute., "Log Standards and Volume Table", Korea Forest Research Institute, 139~ (2013)
- Korea Forest Service., "The Statistical Yearbook of Forestry 2016", Korea Forest Service, 414~ (2016)
- "Dictionary of forest and forestry terms" (2017)[URL]
- 권순덕, "수간부위 형상 시뮬레이션을 이용한 임목 이용재적 및 목재수율 추정", 한국산림과학회지, 96(3), pp.362~368 (2007), 한국산림과학회
- Mousavi R., "Comparison of productivity, cost and environmental impacts of two harvesting methods in Northern Iran:short-log vs. long-log", PhD, pp.2009
- "National Forestry Cooperative Federation Timber Distribution Center" (2017)[URL]
- 박정환, "국산 침엽수 원목의 경급구분 기준에 관한 연구", 목재공학, 41(4), pp.337~345 (2013), 한국목재공학회
- Perstorper M, "Quality of timber products from Norway spruce", Wood Sci Technol, 29, pp.157~170 (1995)
- Pickens JB, "Choosing prices to optimally buck hardwood logs with multiple log-length demand restrictions", For Sci, 43, pp.403~413 (1997)
- 심상로, "리기다소나무 원목형질 조사 및 구조용집성재 제조 수율 평가", 목재공학, 32(2), pp.90~95 (2004), 한국목재공학회