Journal of Forest and Environmental Science
- Volume 9 Issue 1
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- Pages.1-9
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- 1993
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- 2288-9744(pISSN)
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- 2288-9752(eISSN)
Basic studies on pine cone harvest (I)
잣송이의 채취(採取)를 기계화(機械化)하기 위한 기초연구(基礎硏究) (I)
- Kang, Whoa Seug (Department of Agricultural Machinery, College of Agriculture, Kangwon Nat'l University) ;
- Yi, Jae-Seon (Department of Forestry, College of Forestry, Kangwon Nat'l University) ;
- Kim, Sang Hun (Department of Agricultural Machinery, College of Agriculture, Kangwon Nat'l University) ;
- Choi, Jong-Cheon (Department of Forest Management, College of Forestry, Kangwon Nat'l University)
- 강화석 (강원대학교 농과대학 농업기계공학과) ;
- 이재선 (강원대학교 임과대학 임학과) ;
- 김상헌 (강원대학교 농과대학 농업기계공학과) ;
- 최종천 (강원대학교 임과대학 삼림경영학과)
- Published : 1993.05.31
Abstract
In the fall of 1992, growth characteristics and cone-bearing behaviour of crown top shoots were investigated on Pin us koraiensis trees, belonging to age class VII and IV, in the School Forests, College of Forestry, Kangwon National University to obtain basic information for the design of Korean pine cone harvesting machine. The results were summarized as follows. 1. The length of terminal main shoots and lateral shoots of the trees in age class IV was 27~56cm and 18~47cm, respectively, both of which were significantly higher than those of the trees in age class VII. 2. There was no significant difference between two age classes in the branching angle (
잣송이 수확기계의 개발을 위한 기초자료를 얻기 위하여 강원대학교 임과대학 부속연습림에서 7영급 및 4영급의 착과한 잣나무의 정단부위 성장특성과 착과특성을 1992년 8월 말부터 9월 중순까지 조사하였다. 1. 당년 성장한 가지의 길이는 4영급에서 주지는 27~56cm이고 측지는 18~47cm로 7영급보다 훨씬 왕성하였다. 2. 측지의 분지각은
Keywords
- Pinus koraiensis;
- crown top shoots;
- growth characteristics;
- cone-bearing behaviour;
- cone harvesting machine