한국산림과학회지 (Journal of Korean Society of Forest Science)

  • 제100권4호
  • /
  • Pages.687-692
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  • 2011
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  • 2586-6613(pISSN)
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  • 2586-6621(eISSN)
한국산림과학회 (Korean Society of Forest Science)
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점봉산 참나물 자생지의 환경 및 생육 특성

Environmental and Growth Characteristics of Pimpinella brachycarpa Habitat in Mt. Jeombong, Korea

  • 박윤미 (국립산림과학원 산림유전자원부 특용자원연구과) ;
  • 김만조 (국립산림과학원 산림유전자원부 특용자원연구과)
  • Park, Yun Mi (Division of Special-purpose Trees, Korea Forest Research Institute) ;
  • Kim, Mahn-Jo (Division of Special-purpose Trees, Korea Forest Research Institute)
  • 투고 : 2011.08.02
  • 심사 : 2011.08.11
  • 발행 : 2011.12.31
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초록

참나물(Pimpinella brachycarpa)은 전국의 숲속 반음지의 습한 환경에서 자라는 다년생 식물이다. 본 연구는 중부지방 강원도의 점봉산에서 이루어졌으며, 참나물 자생지의 환경적인 특징과 미소환경에 따른 생육 특성을 조사하였다. 참나물 개체군은 해발 978~1016 m의 평균 공중 습도가 80%에 달하는 곳에 위치하고 있었으며, 자생지의 토양 특성을 분석한 결과, 토양수분은 평균 26.7%로 상당히 높았으며, 유기물 함량은 11.1~11.7%, 전질소 함량은 0.60%, 유효인산은 19.5~39.0 ppm, 양이온 치환용량은 $20.8{\sim}21.3cmolckg^{-1}$, 평균 산도는 pH 5.1~5.4로 나타났다. 미소환경 별로는 상층부의 개체목 밀도가 낮아 상대적으로 빛이 많이 들어오는 임상에서 자라는 개체들의 줄기의 높이가 수관이 울폐된 곳보다 통계적으로 유의하게 큰 값을 보였다. 이를 통해, 점봉산의 참나물 자생지는 공중습도와 토양 수분이 상당히 높은 곳에 위치하며, 임상내로 들어오는 빛의 양이 증가할수록 생장량이 상대적으로 증가하는 것을 알 수 있었다.

Pimpinella brachycarpa, a summer-green perennial herb, is narrowly distributed in the moist forest floors. We investigated environmental characteristics and growth patterns of Pimpinella brachycarpa depending on the microenvironment in Mt. Jeombong located in the central part of Korea. P. brachycarpa populations were located at an altitude of 978~1016 m and the average atmospheric humidity hovered at 80 percent. Also, it was found that the soil moisture content was remarkably high, 26.7%, in the populations; organic matter 11.1~11.7%; the nitrate nitrogen 0.60%; available phosphorus 19.5~39.0 ppm; CEC $20.8{\sim}21.3cmolckg^{-1}$; soil pH 4.7~4.8 respectively. In case of growth pattern, the shoot length of individuals under the improved light condition in the sunny forest was statistically longer than in the dense forest. Therefore, we presumed that high humidity and ample soil moisture are abiotic factors of the growth of P. brachycarpa and that the amount of light affects the relative growth rate of individuals.

키워드

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