Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Correlation of Growth Performance with Total Nitrogen, Carbon and Nitrogen Isotope Compositions in the Xylem of Pinus koraiensis

잣나무 생장과 목질부내의 전질소, 탄소 및 질소 동위원소 조성과의 상관관계

  • Lee, Wi-Young (Division of Forest Biotechnology, Korea Forest Research Institute) ;
  • Park, Eung-Jun (Division of Forest Biotechnology, Korea Forest Research Institute) ;
  • Han, Sang-Urk (Division of Forest Resources, Korea Forest Research Institute)
  • 이위영 (국립산림과학원 산림생명공학과) ;
  • 박응준 (국립산림과학원 산림생명공학과) ;
  • 한상억 (국립산림과학원 자원육성과)
  • Received : 2010.03.15
  • Accepted : 2010.04.27
  • Published : 2010.06.30
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Abstract

In this study, we investigated the relationship of tree-ring growth with total nitrogen content, and stable carbon and nitrogen isotopes from the core samples of Pinus koraiensis (35-year-old). Annual ring width showed significant positive correlations with the ${\delta}^{13}C$ (P=0.003). The total nitrogen content (P=0.024), and the ${\delta}^{13}C$ content was also correlated with total nitrogen content (P=0.038), indicating that the growth of P. koraiensis was stimulated as the contents of both ${\delta}^{13}C$ and total nitrogen were increased. On the other hand, the less the ${\delta}^{15}N$ content and the C/N ratio were, the larger the annual ring width was. Moreover the families with relatively better growth performance contained the higher levels of ${\delta}^{13}C$ in the xylem compared to other families. These results suggest that the ${\delta}^{13}C$ and total nitrogen contents are the important determinants in the growth performance of P. koraiensis.

잣나무 목질부의 전질소 함량, 질소 및 탄소 동위원소비와 생장량과의 관계를 구명하고자 목편을 채취, 목질부의 질소 함량, 질소 및 탄소 동위원소비를 측정하여 목편의 연륜 폭과의 관계를 분석하였다. 목편의 연륜 폭과 ${\delta}^{13}C$ 및 전질소 함량과는 각각 p=0.003, p=0.024로 유의적 정의 상관관계가 있었고, 전질소 함량과 ${\delta}^{13}C$값과도 정의 상관관계(p=0.038)가 있어 목질부의 $^{13}C$량이 높고 또한 전질소 함량이 높을수록 잣나무 생장량도 증가하는 것으로 나타났다. 반면 목질부의 ${\delta}^{15}N$값과 C/N율이 낮을수록 연륜 폭이 증가하는 것으로 나타났다. 잣나무 가계간의 비교에서 생장이 우수한 가계일수록 그 목질부의 ${\delta}^{13}C$값이 큰 것으로 나타나 잣나무의 ${\delta}^{13}C$값이 상대적으로 높으면 생장도 우수한 것으로 추정된다. 이러한 결과로 잣나무 목질부내의 ${\delta}^{13}C$값 및 전질소 함량은 생장량과 밀접한 관계가 있는 인자로 추정된다.

Keywords

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