• Korean Journal of Environment and Ecology
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• v.22 no.2
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• pp.106-112
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• 2008

To investigate the vegetation structure of the mountain ridges ranging from Songchu to Dobong, this research set up 22 plots$(400m^2)$ as survey target areas. As a result of the analysis of woody plant cluster, it was classified as two groups-Quercus mongolica community and Quercus mongolica-Pinus densiflora community. Quercus mongolica was found as a mostly dominant woody plant species in the ridge areas from Songchu to Dobong, while Pinus densiflora, Quercus serrata and Quercus acutissima were mixed up partly in low altitudes. High negative correlations were shown between Quercus mongolica and Quercus serrata, Quercus serrata and Acer pseudosieboldianum, Pinus densiflora and Acer pseudosieboldianum, and relatively high positive correlations were found to exist between Quercus acutissima and Quercus serrata; Quercus mongolica and Rhododendron mucronulatum; Pinus rigid a and Rhododendron schlippenbachii; Sorbus alnifolia and Rhododendron mucronulatum; Pinus rigida and Pinus densiflora; Pinus densiflora and Robinia pseudoacacia; Acer pseudosieboldianum and Styrax obassia; Magnolia sieboldii and Symplocos chinensis. Species diversity index(H') by community at the surveyed areas stayed in the scope of $0.997\sim1.160$, which indexes showed nothing different from the vegetation structure of other national parks.