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임분내 광환경의 차이에 따른 주요 참나무 수종의 생장과 엽록소 함량 변화에 관한 연구
권기원(Ki-Won Kwon),최정호(Jeong-Ho Choi),송호경(Ho-Kyung Song),강병식(Byung-Sik Kang) 한국산림바이오에너지학회 2003 산림바이오에너지 Vol.22 No.3
참나무류 주요 수종을 대상으로 다양한 광선 조건에 식재된 실생묘의 활착 및 상대생장량과 광선에 대하여 민감하게 작용하는 엽록소 함량의 계절적인 변화를 조사하기 위하여 상수리나무 1-1묘, 1-0묘, 신갈나무 1-0묘, 졸참나무 1-0묘, 굴참나무 1-0묘를 상수리나무 임분내에 상층임분 밀도를 자연광의 81%, 34%, 21% 등 3가지로 조절하였다.<br/> 조사대상 수종의 묘목을 20m x 10m 크기의 시험구에 100본씩 식재하여 활착율, 상대생장량, 엽록소 함량을 비교하였다.<br/> 상수리나무 1-1묘가 평균 73%로 다른 수종에 비해 높은 활착율을 보였고, 상수리나무 1-0묘가 66%, 신갈나무와 졸참나무가 각각 56%, 45%였으며, 굴참나무는 41%로 이식후 활착율이 가장 낮게 나타났다. 또한 자연광의 81% 실험구에서 대부분의 주요 참나무류 수고, 근원경 생장이 가장 좋은 경향을 보여 주고 있었으며 자연광의 21% 실험구에서는 오히려 광도가 낮아지면서 생장이 상대적으로 저해되는 경향을 보여 주고 있다. 엽록소 함령(a, b, 총엽록소 함향)은 광도가 낮아지면서 엽록소 함량도 낮아지는 것을 알 수 있었다. 그러나 주요 참나무류 수종의 피음 효과에 대한 생장반응은 지속적으로 관찰해야 하며, 엽록소 함량과 생장에 밀접한 관련이 있는 생리적 특성에 대한 연구도 필요할 것으로 생각된다. This study was subjected to compare seasonal changes of survival rate, relative growth rate, and chlorophyll contents of major oak tree species including Quercus acctissima, Quercus mongolica, Quercus serrata, Quercus variabilis seedlings grown in Quercus acctissima forest under different light intensities. Three light intensities were 81% of sunlight, 34% of sunlight and 21% of sunlight. In each treatment, 100 tree seedlings were planted and survival rate, growth rate, and chlorophyll contents were measured. <br/> The highest survival rate was Quercus acctissima in 73% seedlings compared with those subjected to the other tree seedlings in 45~66%. Lowest survival rate was Quercus variabilis seedlings in 41%. Oaks tree species of the height, the root collar diameters of the relative growth were better in the seedlings grown in 81% light intensities of full sun. But growth rates decreased rapidly in the shade treatment of 21% light intensities of full sun. Lowest chlorophyll contents(chlorophyll a, b and total) were shown at 21% light intensities of full sun, lowest light intensity treatment in this study. This result is thought growth and chlorophyll contents associated with light intensity. Also, Physiological characteristics has to be investigated in near future because photosynthesis and chlorophyll contents were strongly related to tree growth with long periods.
인공 피음 처리 하에서 자라는 몇가지 침엽수 및 활엽수 잎의 엽록소 함량에 미치는 광도 효과
권기원,이돈구,김선아 忠南大學校 環境問題硏究所 1996 環境硏究 Vol.14 No.-
Seedlings of coniferous and decidous tree species, Pinus densiflora, Pinus koraiensis, Picea koraiensis, Abies holophylla, Betula platyphylla var. japonica, Fraxinus rhynchophylla which may be shade tolerant or not were anaylzed to investgate the shading effect on chlorophyll contents in the leaves. The seedlings were subjected to shading treatment of 100%, 63%, 17%, 5% of full sun in light intensity for 100 days or 123 days in a small clear-cut area of Mt. Kariwang, Kangwon Province. In the aspect of total chlorophyll amount, the values of 4 coniferous trees revealed lower estimates than those of 2 deciduous ones. Most of the species showed increase in total chlorophyll amount with decrease in light intensity in general, except of pinus densiflora increasing in 17% shading condition but decreasing in 5% shading condition. The ratios of chlorophyll a and chlorophyll b were more or less variable among the species with their shade tolerance and leaf ages, but the ratios decreased due to more increasing in chlorophyll b with the decrease of light intensity. For coniferous trees, total chlorophyll amounts in the current needles showed higher estimates than those in the one year old needles in most cases.
權琦遠 忠南大學校 環境問題硏究所 1984 環境硏究 Vol.2 No.2
The census of the Degree of Green Naturality, indicating minus human interference against natural environment, was carried out in the region of Geumsan as a part of national programme towards nature conservation. The field survey was accomplised in the summer of 1983 by 1×1㎢ mesh in all the region of Geumsan. The Degree of Green Naturality of the region surveyed ranged from the lowest value of 3.06 in Geumsung- myoun to the highest value of 5.99 in Namee- myoun. The average D. G. N. of all the region was estimated to be about 5.1. The reforested stands of D. G. N. (6) were estimated to be 60.9% of all the region. The green naturality of Namee- myoun and Jinsan- myoun etc. contributed greatly to improving the average D. G. N. of all the region surveyed. If the naturality is fully restored within the range of possibility in the future, the potential best D. G. N. shall be attained to be about 7.0- 7.5.