• Proceedings of the Plant Resources Society of Korea Conference
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• 2000.05a
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• pp.58-59
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• 2000

• Korean Journal of Plant Resources
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• v.14 no.3
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• pp.220-228
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• 2001

Comparison of the antioxidant potential and enzyme activities of the extracts of Rhus showed considerable differences. The antioxidative activities of Rhus javanica were the highest of three species tried (7 $\mu\textrm{g}$/$m\ell$). The highest activities showed in fraction No.3 of 12 fractions by Sephadex LH-20 column chromatography and the antioxidative activity showed, in purified extract of each stem,1.5 $\mu\textrm{g}$/$m\ell$ (in Rhus verniciflua), 1.9 $\mu\textrm{g}$/$m\ell$ (in Rhus javanica) and 2.3 $\mu\textrm{g}$/$m\ell$ (in Rhus tricocarpa) respectively. These were identificated as phenolic compounds which are well known antioxidant compounds such as 2-propenoic acid (Caffeic acid), Benzoic acid (Gallic acid), 7-hydroxy- 6methoxy-2H-1-Benzopyran-2-one (Scopoletin). POD activities of stem were higher than leaf. Especially, POD activity in stem of Rhus javanica was 193 times higher than leaf. Rhus tricocarpa, however, showed very low POD activity. SOD activities of stem were higher than that of leaf in Rhus javanica and Rhus verniciflua but in Rhus tricocarpa, the activity of leaf was 25 times higher than that of stem.

• Korean Journal of Plant Resources
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• v.32 no.4
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• pp.325-337
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• 2019

This study was conducted to analyze character of distribution of plants by landforms and altitude in Mt. myeonbong. The chemical properties of soil in this study sites were as follows; pH 4.86, organic 52.53 g/kg, $P_2O_5$ 7.57 mg/kg, potassium $0.18cmol^+/kg$, calcium $2.45cmol^+/kg$ and magnesium $0.49cmol^+/kg$. Generalists in the upper layer were analyzed as follows; Quercus mongolica, Pinus densiflora, Quercus variabilis, and specialists; Carpinus cordata, Tilia amurensis, Morus bombycis etc. In the middle layer, generalists were Betula schmidtii, Quercus mongolica, Sorbus alnifolia and specialists; Lindera erythrocarpa, Quercus serrata, Staphylea bumalda etc. Generalist of shrubs; Lindera obtusiloba, Rhododendron mucronulatum, Sorbus alnifolia, and specialists; Morus bombycis, Pinus densiflora, Deutzia glabrata etc. Generalists of herbaceous layer; Rhus tricocarpa, Lespedeza maximowiczii, Polygonatum odoratum var. pluriflorum and specialists; Liparis kumokiri, Davallia mariesii and Chrysosplenium flagelliferum etc.

• Korean Journal of Environment and Ecology
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• v.22 no.2
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• pp.98-105
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• 2008

To investigate the vegetation structure of the region from Bukhansanseong to Insubong in Bukhansan National park, 16 plost$(2500m^2)$ set up with random sampling method were surveyed. Three groups Quercus mongolica-Mixed Broad leaved community, Pinus densiflora-Quercus mongolica community, Quercus mongolica community was classified (or communities were classified) by cluster analysis. Quercus mongolica were found as a major woody plant species in Bukhansan National park region. High positive correlation were proved between Quercus mongolica and Rhododendron; Quercus mongolica and Rhus tricocarpa; Rhododendron mucronulatum and Rhododendron schlippenbachi; Symplocos chinensis and Rhododendron schlippenbachii; Acer pseudosieboldianum and Magnolia sieboldii, and relatively high negative correlation was proved between Fraxinus rhynchophylla and Rhododendron mucronulatum; Juniperus rigid a and Acer pseudosieboldianum; Styrax obassia and Acer pseudosieboldianum. Species diversity(H') of investigated groups were ranged from $1.236\sim1.319$ and it was relatively high compared to those of the ridge area of other national parks.