Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Effects of Light Enviroment on Photosynthetic Rate and Chlorophyll Contents of Three Broad-leaved Species Growing in the Forest

임분의 광환경이 활엽수 3수종의 광합성율 및 엽록소 함양에 미치는 영향

  • Kim Gab-Tae (College of Life Sci. and Nat. Resources, Sangji Univ.)
  • Published : 2005.06.01
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Abstract

To seek for proper regeneration methods with under-planting, Photosynthetic rate and chlorophyll contents of three broad-leaved species seedlings, Kalopanax pictum, Fraxinus rhynchophylla and Cornus controversa, were measured and compared between growing sites, below the canopy of Larix kaemferi and open land in the forest. Nursery stocks was planted in open nurs- ery in the forest in late April, 1997, and under-planting below the canopy of Larix kaemferi was conducted in late April, 1998. This experiment examined the relationships between shade-tolerance and physiological response to different light environment by tree species. To adapt the shade environment, leaves of Kalopanax pictum might be increased the more chlorophyll con- tents and photosynthetic ability than other species. From these results, shade-tolerance of the tree might be ordered Kalopanax pictum, Fraxinus rhynchophylla, and Cornus controversa.

이 연구는 큰 나무 아래 어린 나무를 심어 (수하식재) 새로운 숲을 가꾸는 방법 (임분갱신법)을 찾고자 낙엽송 간벌지에 음나무, 물푸레나무 및 층층나무 묘목을 1998년 봄에 수하식 재 한 것과 이웃에 위치 한 동일한 묘령의 임간포지에서 생육하는 개체들과의 엽록소항량과 광합성율을 2000년 7월에 측정$\cdot$비교하였다. 이는 식물종에 따른 광량에 대한 적응력 차이 (내음성)를 생리학적으로 확인하고자 시도하였다. 낮은 광도에 적응하기 위하여 음나무 잎은 다른 수종들에 비하여 보다 많은 엽록소함량과 광합성능을 증가시 키는 반응을 보였다고 판단된다. 이러한 결과로 보아 내음성은 음나무, 물푸레나무, 층층나무의 순으로 낮아지는 것이라 판단된다.

Keywords

References

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