• Korean Journal of Environment and Ecology
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• v.9 no.2
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• pp.133-146
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• 1996

This study was conducted to analyse plant community structure by the altityed and slope in Tongdaesan area, Odaesan National Park. Sixty-three plots(each plots size was 100m$^{2}$) were set up and PWINSPAN and DCA method were used for vegetational structure analysis. Division of community was cleared altitude than part of slope With increasing elevation the importance values of Quercus mongolica, Tilia amurensis increased, while those of Fraxinus mandshurica, Betula schmidtii, Cornus controversa decreased. Survey plots were divided into 6 groups by the TWINSPAN and DCA method. The divided groups are T. amurensis community(I), Q. mongolica community(II) of upper part of slope of east and west, Q. mongolica-T. amurensis community(III) of middle part of slope, Q. mongolica-F. mandshurica community(IV), Pinus densiflora-B. schmidtii-Carpinus laxiflora community(V) of low elevation of east, F. mandshurica-C. controversa community(VI)of low elevation of west. Also, vegetational change were showed slope of east and west in Tongdaesan except top area for the last twenty yeras.

• Korean Journal of Environment and Ecology
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• v.9 no.2
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• pp.147-155
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• 1996

To investigate the structure and the conservation strategy of natural forest at Dongdaesan, Turobong, Sangwangbong Area in Odaesan National Park, 27 plots(20$\times$20m) set up with random sampling method. Three groups were classified by cluster analyses. High positive correlations was proved between Tilia amurensis and Acer pseudo-sieboldianum, Malus faccata and Syringa reticulata var. mandshurica, Prunus padus and Viburnum sargentii, and High negative correlations was proved between Quercus mongolica and pronus padus, Tilia amurensis and Prunus padus, Acer pseudo-sieboldianum and Prunus padus. Species diversity(H') of investigated area was calculated 0.9586~1.1814.

• Journal of Korean Society of Forest Science
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• v.89 no.2
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• pp.173-184
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• 2000

The aim of this study was to characterize the forest vegetation and site of Tongdaesan(Odaesan National Park) for ecological forest management. The deciduous forests of Tongdaesan are the result of cool, temperate climate. Direction and slope morphology contribute to differences in species composition and vegetaion structure. Based on the BRAUN-BLANQUET-approach, 242 releves were recorded and subsequently classified. The vegetation could be divided into two forest community groups, seven forest communities, and several groups. South exposed, dry slopes were covered with forests of the Quercus mongolica-Acer pseudo-sieboldianum community group. Differential species included grasses and sedges, e.g., Calamagrostis langsdorfii, Carex humilis and C. lanceolata. Quercus mongolica-Acer pseudo-sieboldianum community group could be subdivided into Rhododendron mucronulatum var. ciliatum community, Lespedeza${\times}$tomentella community, Carex humilis-Maackia amurensis community, Quercus mongolica-Acer pseudosieboldianum typical community and Pimpinella brachycarpa community. Carex humilis-Maackia amurensis community was divided into Galium kinuta subcommunity and typical subcommunity. Pimpinella brachycarpa community was divided into Vicia venosa var. cuspidata subcommunity and typical subcommunity. On north exposed, more humid and moist sites, forests of the Dryopteris crassirhizoma-Cornus controversa community group were found. This group was subdivided into Acer tschonoskii var. rubripes-Acer tegmentosum community and Deutzia glabrata-Ulmus laciniata community. Deutzia glabrata-Ulmus laciniata community was divided into Acer tegmentosum subcommunity, Saxifraga punctata subcommunity and typical subcommunity.

• Korean Journal of Environment and Ecology
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• v.9 no.2
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• pp.99-114
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• 1996

This research was carried out three times in the Dongdaesan, the Dongpigol camping area and the Sangwonsa from June 1995 to September 1995 to study insect fauna(Hemiptera, Coleoptera and Lepidoptera) in Odaesan National Pard. Eleven jamilies and 15 species of Hemiptera, 20 families and 40 species of Coleoptera and 11 families and 42 species of Lepidoptera was collected and identified. Among these, 12 species of Hemiptera, the 21 species of Coleoptera and 22 species of Lepidoptera were first reported in Odaesan. Including these first found insects, 8 families and 36 species of Hemiptera, 26 families and 97 species of Coleoptera, 30 families and 274 species of Lepidoptera are reported from Odaesan. The species inventories for Hemiptera, Coleoptera and Lepidotera were made from present study and previous works.

• Journal of Korean Society of Forest Science
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• v.89 no.5
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• pp.552-563
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• 2000

The aim of this study was to characterize the forest vegetation and site of Odaesan National Park for ecological forest management. The vegetation could be divided into two forest community groups, seven forest communities, and several subcommunities. South exposed, dry slopes were covered with forests of the Quercus mongolica-Acer pseudosieboldianum community group. Quercus mongolica-Acer pseudosieboldianum community group could be subdivided into ${\bullet}$ Rhododendron mucronulatum var. ciliatum community on dry sites, especially on south or south-westly exposed ridges or convex slopes; ${\bullet}$ Lespedeza${\times}$tomentella community on south exposed slopes, at low altitudes in the eastern part of the study area; ${\bullet}$ Carex humilis-Maackia amurensis community on south exposed slopes up to the montane region; ${\bullet}$ Quercus mongolica-Acer pseudo-sieboldianum typical community on south exposed middle and low slopes, and on upper and middle north exposed slopes; ${\bullet}$ Pimpinella brachycarpa community, preferably on moderately moist and cool sites. On north exposed, more humid and moist sites, forests of the Dryopteris crassirhizoma-Cornus controversa community group were found. This group was subdivided into ${\bullet}$ Acer tschonoskii var. rubripes-Acer tegmentosum community on moderately moist to moist, loamy soils on shady slopes; ${\bullet}$ Deutzia glabrata-Ulmus laciniata community on north exposed slopes with rocky soil and boulders, having high humidity. There are several rare and endangered species in Rhododendron mucronulatum var. ciliatum community, Carex humilis-Maackia amurensis community, Vicia venosa var. cuspidata subcommunity and Saxifraga punctata subcommunity, and the communities were located in azonal areas in topography. To protect the species, the areas should be categorized as an absolute conservation area, and any forest working should be prohibited in this area.

• Journal of Korean Society of Forest Science
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• v.87 no.3
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• pp.459-465
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• 1998

To obtain the basic data for the conservation and cultivation of native herb species under the forest, the relations between distribution of native herb species and site factors, distribution of native herb species, and site factors were surveyed on natural forest at subalpine zone in Mt. Odae. Ainsliaea acerifolia, Pseudostellaria palibiniana and Pimpinedla brachycarpa were distributed mainly on broadleaved mixed forest, Clematis fusca var. coreana, Carex siderosticta. Isodon excisus and Vicia unijuga did mainly on gab sites. The distribution of Ligularia fisheri, Aconitum pseudo-laeve var. erectum, Cacalia hastata and Artemisia stolonifera were significantly differed between slope directions. Artemisia stolonifera was distributed more frequently in south directed slope, and Ligularia fisheri, Aconitum pseudo-laeve var. erectum and Cacalia hastata were distributed more frequently in north and west directed slope than the other. The distribution of Aconitum pseudo-laeve var. erectum and Artemisia stolonifera were significantly differed between soil moisture conditions. Artemisia stolonifera was distributed mainly on the dry site, but Aconitum pseudo-laeve var. erectum did mainly on the dry site. Negative correlations between density of Clematis fusca var. coreana, Carex siderosticta. Isodon excises and Vicia unijuga and crown coverage was proved. Aconitum pseudo-laeve var. erectum, Pimpinella brachycarpa, Meehania urticifolia, Smilacina japonica and Pseudostellaria palibiniana were mainly distributed on wet and shady sites under forest canopy, but Pedicularis resupinata, Clematis fusca var. coreana and Artemisia stolonifera did on sunny sites at forest edge or gab.