• Korean Journal of Environment and Ecology
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• v.16 no.1
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• pp.104-123
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• 2002

The flora survey on Chungnyeongsan and Seorisan was conducted 6 times from 1998 to 2000.817 taxa such as 112 families 415 genera 688 species 1 subspecies 116 varieties 12 forma were recorded. Dominant species in investigated areas was Quercus mongozica and some deciduous broad-leaved species, such as Quercus sp., Acer sp., Fraxinus sp., Carpinus sp., etc. were codominant species in these areas. Pinus koraiensis and Larix teptozepis plantations were also found in these areas. The 16 taxa of rare plants protected by Forestry Service were found in these areas and among them 10 taxa were new populations which had not been recorded in these areas. Discovery of Erunthis stellata, Aconitum koreanum, Paeonia japonica, Scopotia japonica and Acunthopanax senticosus populations indicate that these areas could be regarded as very important one in a biogeographical aspect. Endemic plants were listed 35 taxa and among them 22 taxa including Corydalis maculata, Ulmus macrocarpa, Scrophutaria horuiensis, Cirsium setidens, etc. were new one. Naturalized plants were listed 39 taxa and among them 30 taxa were new one. Lower naturalized index(NI) and higher urbanized index(UI) were recorded compared to those of neighbored areas. There were many kinds of threatening factors fur the plant resources in survey areas, so it is necessary to limit the number of visitors and to introduce the natural relaxation system.

• Korean Journal of Plant Resources
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• v.27 no.4
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• pp.326-332
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• 2014

Two unrecorded naturalized species, Lolium rigidum Gaudin (Poaceae) and Oenothera rosea L'H$\acute{e}$r. ex Aiton (Onagraceae) were newly reported in Korea. L. rigidum, 'Daeng-Dol-Bo-Ri', was found at roadside of Yesong beach, Yesong-ri, Bogil-myeon, and roadside of Myeongsasimni beach, Sin-ri, Sinji-myeon, in Wando-gun, Jeollanam-do. It was distinguished from L. mutiflorum Lam by spikelet 10-20 mm long, florets 2-10(-13), and obtuse lemma, awn absent or up to 3-8(-10) mm. O. rosea, 'Ae-Ki-Bun-Hong-Nat-Dal-Mat-I-Kkot', was found in side of Wondong wetland, Yongdang-ri, Wondong-myeon, Yangsan-si, Gyeongsangnam-do. This taxon was distinguishable from other Oenothera in Korea by following combination of characters, stem erect to ascending, petal 5-12 mm long, pink to bright purple. Descriptions and illustrations of the two taxa and their photographs in the habitat are provided along with a key to the species of Lolium and Oenothera from Korea.

• Journal of Environmental Science International
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• v.17 no.10
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• pp.1081-1092
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• 2008

This study was conducted to provide scientific information for establishing efficient and systematic measures for nature conservation and management in Manjang-gul lava tube. The number of vascular plants was 204 taxa (82 families, 176 genera, 144 species, 1 subspecies, 26 varieties and 1 forma). Of those, pteridophyte were 5 families, 12 genera, 14 species and 1 variety and gymnosperm were 4 families, 6 genera, 5 species and 1 variety. Seventy three families, 149 genera, 157 species, 1 subspecies, 24 varieties and 1 forma in angiosperm composed of 62 families, 123 genera, 137 species, 1 subspecies, 17 varieties and 1 forma in dicotyledon and 11 families, 26 genera, 20 species and 7 varieties in monocotyledon. The number of naturalized plants was 9 families, 17 genera, 18 species and 3 varieties, totaling 21 taxa.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.7 no.3
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• pp.26-34
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• 2004

It is expected that the different techniques of stream restoration could be caused the different conditions of the stream ecosystem. The study was to investigate and compare plants and vegetation clusters of appearing plant species in the upper and lower section of the Seo-Ho stream, It was classified and listed all of the plants appeared in the upper and lower section of the stream, It was used the belt-transect method and Unweighted pair group method using arithmetic algorithm in order to examine and analyzed discover the vegetation clusters, In the result, 28 families and 114 species appeared in the upper section, In the other side, 26 families and 93 species appeared in the lower section of the steam. The naturalized index of the upper section was 21%, and that of the lower section was 27%. In addition, the upper section has more various geographical features than lower section of the stream. So that, consequently the study shows that the different techniques of stream restoration could be caused the different growth of the stream ecosystem.

• Journal of Ecology and Environment
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• v.35 no.3
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• pp.167-175
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• 2012

Coastal sand dune systems are particularly fragile and threaten the environment. However, these systems provide fundamental ecosystem services to the nearby urban areas, acting, for example, as protective buffers against erosion. In this paper, we attempt to classify the biotope types of coastal sand dune ecosystems and select an index for the assessment of the conservation value. The types of biotopes are categorized based on the vegetation map; floras are examined in order to research the effects of hinterlands on coastal sand dunes. In addition, a naturalization rate and an urbanization index for each biotope type in hinterlands are analyzed. In the ecosystem of coastal sand dunes, the urbanization index and naturalization rate shows a higher value in sand dunes with areas of road, residential, and idle land in farm villages, rice fields, and fields. On the contrary, a lower value in the urbanization index and naturalization rate is present when typical biotope types, such as sand dune vegetation and natural Pinus thunbergii forests, are widely distributed. Based on these results, urbanization index and naturalization rate should be used as critical indices for the assessment of the ecosystem of costal sand dunes.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.5 no.3
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• pp.31-39
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• 2002

The main purpose of this study is to select the appropriate wild plants on the rooftop. For the purpose of the experiments, 14 wild plants(12 korean native wild plants and 2 naturalized wild plants) were chosen. As the results of the experiments, the wild plants growing on the culture soil(perlite) Among the 14 kinds of wild plants, such as Chrysanthemum boreale, Taraxacum mongolicum, Aster Koraiensis, Aster yomena, Oenothera odorata, Oenothera lamarckiana, Patrinia scabiosaefolia showed good effects on growth of above ground parts. Therefore, these plants will effective for the rooftop revegation. Callistephus chinensis and Lotus corniculatus var. Japonicus showed good height growth, wherase covering rate was worst. Chrysanthemum boreale, Platycodon grandiflorum, Patrinia scabiosaefolia were plant height, wherase covering rate was not good. As the results of the experiments, the wild plants growing on the culture soil(vermiculite) Taraxacum mongolicum, Aster Koraiensis, Oenothera lamarckiana, Aster yomena showed good effects on growth of above ground parts. Consequently, korean native wild plants such as Taraxacum mongolicum, Aster Koraiensis, Aster yomena and naturalized wild plants such as Oenothera odorata, Oenothera lamarckiana were effective wild plants for rooftop revegetation.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.21 no.5
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• pp.61-79
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• 2018

The purpose of this study is to investigate the flora of Sohyeoncheon which is planned for ecological restoration and river maintenance from upstream to downstream, and also to collect the ecological data to cope with the change of the ecosystem of Sohyeoncheon. The numbers of vascular plants were summarized as 336 taxa including 82 families, 233 genera, 298 species, 1 subspecies, 33 varieties and 4 forms. The rare plants were 3 taxa including Aristolochia contorta Bunge, Prunus yedoensis Matsum.(planting) and Koelreuteria paniculata Laxmann. The Korean endemic plants were 4 taxa including Populus tomentiglandulosa T.B.Lee(planting), Lespedeza maritima Nakai, Forsythia koreana (Rehder) Nakai(planting) and Weigela subsessilis (Nakai) L.H.Bailey. The specific plants by floristic region were 15 taxa including 1 taxon of grade V, grade IV and grade II each, 4 taxa of grade III and 8 taxa of grade I. The naturalized plants were 60 taxa and the invasive alien plants were 3 taxa. The results of analysis by vertical structures showed that naturalized plants included 31 taxa of upstream, 53 taxa of midstream and 38 taxa of downstream. An analysis of crossing structures showed that 2 taxa of water channel, 3 taxa of low waterside, 41 taxa of high waterside and 48 taxa of bank.

• Korean Journal of Environment and Ecology
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• v.20 no.2
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• pp.130-142
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• 2006

The Weolchulsan is one of the phytogeographically important areas among national parks of Korea because this region is located in the northern limit of Southern Plant Types. The flora of the area was enlisted as 516 taxa, 106 families, 318 genera, 453 species, 59 varieties, and 4 forms. The six taxa such as Diplomorpha trichotoma, Monotropastrum globosum, Hololeion maximowiczii, Drosera rotundifolia, Utricularia japonica and Utricularia racemosa are enlisted as the Rare and Endangered Species which is categorized by the Korea Forest Service. The Ratio of Naturalized and Urbanization Index was 4.65% and 9.06%, respectively.

• Korean Journal of Plant Resources
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• v.25 no.3
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• pp.329-338
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• 2012

Genus Taraxacum has been widely used as a folkloric medicine for treatment of diverse diseases. The genetic diversity and relationship among 32 accessions belonging to five Taraxacum species (T. mongolicum T. coreanum, T. coreanum var. flavescens, T. officinale and T. laevigatum) which collected from field, mountain, island and seaside of Korea were evaluated using ISSR markers. A total of 142 ISSR loci detected in the overall species were all polymorphic loci (100%) and interspecies polymorphisms obtained from Korean native and naturalized species were 98.2% and 94.5%, respectively. The genetic similarity matrix (GSM) among 32 accessions ranged from 0.025 to 0.860 with an average of 0.303. According to the clustering analysis, the Korean native species and naturalized species were divided two major clusters. In addition, the different species were divided into independent groups except for the T. coreanum and T. coreanum var. flavescens, and all the 32 accessions could be classified into 7 categories. The study findings indicate that Taraxacum accessions have a high genetic diversity and the dandelion accessions as breeding materials can be effectively utilized for the improvement of Taraxacum breeding.

• Korean Journal of Plant Resources
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• v.21 no.4
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• pp.310-323
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• 2008

This study was to establish the floristic composition of vascular plants of Mt. Hwangjang (1,077.3m). Floristic composition of vascular plants were conducted during April 2006${\sim}$August 2007. Vascular plants were composed of 97 families, 257 genera, 357 species, 5 subspecies, 42 varieties and 9 formae, totaling 413 taxa. Among the investigated resources plants, 6 taxa were Korean endemic species. The special plants based on floral region by Ministry of Environment (2006) were 55 taxa. A naturalized plants were 15 species, correspond to 5.2% of totaling 290 species (Kim and Lee, 2006) appeared in South Korea.