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- 저자 : 임영득(Young Duek Rim) (검색결과 2 건)
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리기다소나무 임상에 있어서 Seedling 및 Sapling 의 현재량에 관한 연구
방재욱(Jae Wook Bang),임영득(Young Duek Rim),신창남(Chang Nam Shin) 한국식물학회 1979 Journal of Plant Biology Vol.22 No.3
Distribution and standing crops of seedling and sapling as undergrowing tree were investigated in a Pinus rigida forest. The relative light intensity (RLI) on the ground level was 3.9%∼59.3% which indicates a wide range. Under this range of RLI seedlings and saplings distribute well in the stand. Eight trees were selected from the stand, then measured dry weight of stem, branches and leaves using the stratified clip technique. A possible relationship between the diameter at the bottom of the tree (DO) and standing crops was investigated. As Do increased from 0.8㎝ (T_1) to 7.2㎝ (T_2), the standing crops also increased from 42.6g to7,410.4g. Since semi-Iog values between Do and standing crops clearly indicates a straight line, there is close relationship between these two factors. Therefore it is possible to estimate the standing crops of seedling and sapling by measuring Do. Productive structure shows that photosynthetic layer is located above the 1/2 height of the tree and maximum photosynthetic layer apperars on 2/3 level in height.
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토양조건에 (土壤條件) 미치는 낙엽의 영향 (제2보) - 낙엽부패에 의한 토양성분 변화
차종환(Jong Whan Cha),장남기(Nam Kee Chang),임영득(Young Duek Rim) 한국식물학회 1969 Journal of Plant Biology Vol.12 No.1
In this experiment the litters of each five species of neadle-leaf trees and broad-leaf trees were laid on each pot soils, which had same soil conditions, is the green house and the soil fertility of each pots were determined after four years. Chemical properties among each pot soils under litters of needle-leaf trees showed remarkable different values in the pH, base exchange capacity, total exchangeable base, base saturation, organic matter, available phosphorus, exchangeable potassium and calcuim, and that of broad-leaf trees showed respectively significant difference. The content of chemical compenents, such as total exchangeable base, organic matter, total nitrogen, available phosphorus and exchangeable potassium, between pot soils under litters of the needle-leaf trees and the broad-leaf trees were significant at the 0.01 and 0.05 levels of the statistical probability. The fertility of soil under the influence of decayed fallen leaves is the highest value in the pots of broad-leaves and next to the pots of needle-leaves and the control pots the lowest. The pH value of the soil with various kinds of fallen leaves showed little difference among themselves, but it especially approached in the broad leaves plots gradually to neutral and the non-treated plot showed acidity. Lsepedeza bicolar and Castanea crenata are supposed to contribute to the fertility of soil. Pinus rigida showed excellent exchanged properties of soil. The leaves of Robinia paseudoacacia and Pinus koraiensis did not contribute much to the promotion of fertility of soil.
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