• Korean Journal of Environment and Ecology
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• v.18 no.2
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• pp.167-174
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• 2004

This study was carried out to investigate the actual vegetation and the DGN(Degree of Green Naturality) from Namdeogyusan of the Deogyusan National Park to Sosagogae in the Baekdudaegan in 2003. The actual vegetation of the surveyed site were classified into 14 plant communities and cropland, etc.; Natural forest were classified into 9 plant communities; Quercus mongolica communities, mixed forest, deciduous broadleaf plant communities, Pinus densiflora communities, etc. And afforested lands were classified into 4 forest types; Larix leptolepis communities, Pinus rigida communities, etc. The DGN 9 was appeared the widest area as 57.97% and the DGN 8 was 26.80%. The DGN 1 and 2 were appeared as 5.18% at Sosagogae and Paejae district in outside of the Deogyusan National Park.

• Korean Journal of Environment and Ecology
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• v.25 no.2
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• pp.166-174
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• 2011

This study was carried out to investigate the actual vegetation and Degree of Green Naturality(DGN) in Naejangsan National Park in 2010. The actual vegetation of the surveyed site were classified into twelve plant communities and the others. Secondary forest were classified into eight plant communities; Pinus densiflora community, Deciduous broadleaf forest, Quercus mongolica community, etc. Afforested lands were classified into four forest types: P. rigida -P. densiflora forest, P. rigida forest, etc. The area of DGN 8 consisted of 60.58% while the area of DGN 9 consisted of 3.62% when compared with land area in Naejangsan National Park. The exotic plants needs to be managed for recovery of natural landscape and biological diversity in Naejangsan National Park.

• Korean Journal of Environment and Ecology
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• v.24 no.2
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• pp.108-116
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• 2010

This study was conducted to investigate the actual vegetation and Degree of Green Naturality(DGN) in Taeanhaean National Park in 2009. The actual vegetation of the surveyed site was classified into eleven plant communities and the others. Substitutional forest were classified into six plant communities; Pinus thunbergii community, P. densiflora community, Deciduous Broadleaf Forest, P. densiflora-Deciduous broadleaf Forest, etc. and the afforested lands were classified into five forest types: P. thunbergii, P. thunbergii-P. rigida Forest, Robinia pseudoacacia Forest, etc. The area of DGN 8 consisted of 40.66% while the area of DGN 9 consisted of 13.7% when compared with land area of Taeanhaean National Park. For the recovery of natural landscape and biological diversity of Taeanhaean National Park needs to be managed for eliminate to the exotic plants.

• Korean Journal of Environment and Ecology
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• v.22 no.2
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• pp.83-97
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• 2008

This study was carried out to investigate the actual vegetation and Degree of Green Naturality(DGN) and distribution of exotic plants replanted in Bukhansan National Park. The actual vegetation of the surveyed site was classified into eight plant communities and crop land, etc. Substitutional forest were classified into five plant communities; Quercus mongolica community, Q. mongolica-Pinus densiflora community, Deciduous broadleaf forest, etc. Reforested lands were classified into three forest types: P. koraiensis forest, Robinia pseudoacacia forest, P. rigida forest, etc. The area of DGN 8 consisted of 92.80% in Bukhansan National Park. The replanted plants in Bukhansan National Park was enlisted as 212 taxa, 71 families. The indigenous native among the replanted species were enlisted as 67 taxa(31.6%), 37 families. The exotic plants were enlisted as 145 taxa(68.4%), 58 families. The exotic plants needs to management that for recovery of natural environment, improvement about maintenance of multiplicity and a site of scenery about natural plants in Bukhansan National Park.