• Korean Journal of Environment and Ecology
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• v.24 no.4
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• pp.363-394
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• 2010

This study was carried out to investigate the vascular flora of the Hongcheon-gun area in Gangwon Province. The vascular plants were collected 13 times(from April 2008 to May 2009), and 1,055 taxa in total were identified, including 43 orders, 118 families, 443 genera, 903 species, 6 subspecies, 125 varieties, 18 form and 3 hybrids. Among them, 37 taxa of Korean endemic plants and the Office of Forestry-designated rare & endangered plants were identified as 35 taxa. Based on the list of plants which have been approved for overseas delivery, 61 taxa were recorded in the investigated area. The Ministry of Environment-designated plants, which should be protected by the wildlife protection law, were identified as four taxa and 224 taxa of specially designated plants by the Ministry of Environment. The naturalized plants were identified as 45 taxa, and their naturalization ratio and urban index were found to be 4.3%, and 16.1% respectively. 1,055 taxa listed consists of 359 taxa(34%) of edible plants, 293 taxa(27.7%) of medicinal plants, 166 taxa(15.7%) of pasture plants, 143 taxa(13.5%) of ornamental plants, 41 taxa(3.9%) of timber plants, 25 taxa(2.3%) of fiber plants and 3 taxa(0.2%) of industrial plants.

• Journal of Korean Society of Forest Science
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• v.101 no.2
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• pp.226-235
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• 2012

Floristic composition and phytosociological studies in Mt. Gwaebyung and Galmi-Bong were investigated to classify forest vegetation and distribution of vascular plants. We investigated two study sites from April to September, 2011. Total 477 taxa with 93 families, 279 genera, 408 species, 4 subspecies, 56 varieties and 9 forms were distributed in Mt. Gwaebyung and Galmi-Bong. Korean endemic species were composed of 8 families with 11 genera and 11 species. The plant species which is designated as protected species by the Ministry of Environment, Korea was 2 families, 2 genera and 2 species. Also plant species which is designated by the Korea National Arboretum was 16 taxa with 13 families, 14 genera, 15 species and 1 variety. A naturalized plants were 17 taxa. The Naturalization index and Urbanization index were 3.6% and 5.3% respectively. Pteridophyta-calculation (Pte-Q) was 1.00. Life form spectra was $H-D_4-R_5-e$ type and the highest percentage of useful plant resources were medicinal plant (77.5%). The forest vegetation in Mt. Gwaebyung and Galmi-bong was classified into 1 order, 1 alliance and 4 communities; Rhododendro - Quercetalia mongoliaceae, Lindero-Quercion mongolicae, Quercus mongolica Typical Community, Pinus densiflora-Quercus mongolica Community, Larix kaempferi Community and Sasa borealis-Quercus mongolica Community.

• Korean Journal of Environment and Ecology
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• v.26 no.2
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• pp.139-155
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• 2012

Vascular plants of Island Gageo in Jellonamdo were investigated 10 times from August, 2005 to August, 2011. In the result of survey, the flora of this island consists of 341 taxa totally; 93 families, 246 genera, 289 species, 7 subspecies, 36 varieties and 9 forms. Yellow-fruit bearing plants of $Neolitsea$ $sericea$ which were found in this island are newly named as $Neolitsea$ $sericea$ (Bl.) Koidz. for. $koreana$ M. Kim. There were 8 Korean endemic plants such as $Hosta$ $yingeri$, $Impatiens$ $furcillata$, $Saussurea$ $pseudo-gracilis$, etc. Also 3 Korean endangered species which is designating by Ministry of Environment such as $Osmanthus$ $insularis$ and $Cyrtosia$ $septentrionalis$ and 9 rare and remarkable species such as $Viburnum$ $japonicum$, $Asplenium$ $yoshinagae$, $Broussonetia$ $kazinoki$ for. $koreana$, etc. were found in this island. Furthermore, 11 taxa of naturalized plants (3.2%) were also observed in this island.

• Korean Journal of Plant Taxonomy
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• v.50 no.1
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• pp.56-79
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• 2020

Baekdudaegan, the largest mountain range in eastern Asia, is a biodiversity hotspot in Korea that may have served as a glacial refugium. This study presents the flora of vascular plants on Deok-chi upto the Yuk-sim-nyeong area of the Baekdudaegan conservation area. The survey area was divided into four subareas and fieldwork was conducted for a total of twelve days in 2015. Voucher specimens were collected during the survey and were deposited at Daejeon University. A list of vascular plants was prepared based on the voucher specimens. The results of the survey showed that a total of 441 taxa, consisting of 100 families, 265 genera, 398 species, 9 subspecies, 32 varieties, and 2 forms, were found in the survey area. There was one endangered species, Aconitum coreanum, in the Bonghwasan Mt. area. Sixteen endemic taxa, 74 floristic regional indicator plants, as designated by the Ministry of the Environment, and eleven naturalized plants were distributed. The results of this study can serve as basic information to establish conservation and management plans for the Baekdudaegan conservation area.

• Journal of Korean Society of Forest Science
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• v.95 no.4
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• pp.393-397
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• 2006

Thuja koraiensis Nak. is a short and creeping evergreen shrub which reaches about 3 m in height and only occurs in the northeast China and in high mountains over the Korea. It's designated as a rare and endangered tree species in Korea and DD (data deficient) in Red List Category & Criteria of IUCN. This study was carried out to develop the propagation technique by cutting for conservation of genetic resources of T. koraiensis. The rooting responses of branch cuttings, obtained from hard (May) and semi-hard wood shots (August) to three plant growth regulators (PGRs), namely, IAA, IBA, and NAA applied at various concentrations (0, 100, 500, 1000, 2000, and 3000 mg/l) were examined in sand and mixed soil media. Percentage of rooting showed significant difference between cutting time, among kinds and among concentration of PGRs. The optimum cutting time was April to May in hardwood cutting. The application of IAA 1000 mg/l and NAA 500mg/l were effective in callus formation and rooting of cutting. Relatively, rooting of cutting of the control taken in May was above 93%.

• Korean Journal of Environment and Ecology
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• v.17 no.4
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• pp.346-359
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• 2004

Flora was investigated in the Dongbok stream area of hwasun-gun, Jeonllanam-do from February in 2002 to August, were identified as 206 taxa; 75 families,158 genera,174 species,31 varieties and 1 form of plant. Hydrophytes of research site was investigated total, 29 taxa; 16 families, 23 genera, 26 species and 3 varieties. Emerged plants, submerged plant, floating leaved plants and floating plants among the hydrophytes was classified 22, 4, 2 and 1 taxa respectively. Naturalized plants of research site was investigated total, 19 taxa; 10 families, 17 genera, 17 species, 2 varieties. Based on the list of rare and endangered plants from the Forest Research Institute and the Ministry of Environment 1 species Sparganium stoloniferum were recorded in the studied area.

• Journal of Korean Society of Forest Science
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• v.104 no.3
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• pp.337-351
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• 2015

The articles, published in the Journal of Korean Forest Society from Volume 1 (1962) to Volume 102 (2013), were investigated for the research trend analysis about forest plants for special purposes, i.e., edible plants, medicinal plants, feed resources, landscape plants, fiber plants, industrial usage, bee plants, bioenergy/phytoremediation uses, dye materials, and rare/endangered/endemic plants. These research articles were classified again based on the contents of research into following categories - habitat environment, ecology, physiology, propagation, silviculture (including planting and tending), genetics and breeding, identification, pest and disease control, animal-related research, components analysis and extracts, vegetation survey, biotechnology, management, recreation and forest healing, and research review. Among the total 2,433 articles published, 611 (25.1%) were related to plants for special usage or purposes. The highest frequency (14.9%) in publications was found in the field of silviculture followed by physiology, propagation, identification, and genetics and breeding, respectively. On the bases of usage, edible plants showed higher frequency (26.5%) than others, followed by industrial purpose, bioenergy/phytoremediation usage, landscape plants, medicinal plants, and rare/endangered/endemic plants. Populus plant species was the most popular in research, showing 62 articles; and Castanea crenata 36; Pinus koraiensis 35; Robinia pseudoacacia 20; Ginko biloba 17, etc. Based on the survey and analysis, the following points are suggested: 1) improved evaluation of forest plants as non-wood resources, 2) expanding research topics on the basis of production, management, and utilization of non-wood forest resources, 3) management of database of forest plant information and encouragement needed to strengthen cooperative researches satisfying the needs of other industrial and scientific areas, and 4) encouraging to promote traditional knowledge based research on forest plants.

• Korean Journal of Plant Resources
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• v.22 no.2
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• pp.180-194
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• 2009

588 taxa of vascular plants including 121 families, 399 genera, 510 species, 67 varieties, 2 subspecies, 7 forma, and 2 hybrid species were investigated in Mt. Cheonsung. Among them, 116 species were newly added in this research. The area for Gyeongbu High-speed Railway passes Mujechi 3, 4, 5, and 6 and Daeseongsa around the wetlands were investigated 6 species of rare and endangered plants, 9 species of endemic plants and 37 species of special flora plants in Mt. Cheonsung. Appear due to the construction of the Gyeongbu High-speed Railway vegetation changes, especially about the impact of wetland plants for long-term monitoring is expected to need. Moreover, plant preservation plan about water source change in upper wetland should be established.

• Korean Journal of Plant Resources
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• v.14 no.3
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• pp.259-276
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• 2001

Mt. Seoun(574 meters above sea level) is located in the southern part of An-sung city, Korea, within 36$^{\circ}$54'~36$^{\circ}$50'N, 127$^{\circ}$16'~127$^{\circ}$19'E. Field surveys were carried out nine times from March to October, 2000. Main results obtained from this study were as follows. The flora of vascular plants investigated in this survey was 439 taxa belonging to 90 families, 268 genera, 383 species, 49 varieties, 5 forma, 2 hybrid. As a result of this study, rare and endangered(Tricyrtis dilatata Nakai, Gastrodia elata Bl., Saururus chinenses Baill., Viola albida Palibin.) and many endemic species(Athyrium acatipinnulum Kodama., Tricyrtis dilatate Nakai, Paulownia coreana Uyeki., Salix hallaisanensis Lev., Asperula Iasiantha Nakai, Weigela subsessilis L.H. Bailey, Melamdryum seoulense Nakai, Clematis trichotoma Nakai, Spiraea prunifolia var. simpliciflora Nakai, Syringa dilatata Nakai, Chloranthus japonicus var. koreanus Sieb, Scutellaria insignis Nakai) of Korea were distributed in this area. Also the naturalized plants which were appeared in this area were 24 taxa(5.5 %). Among the plant resources, there are 239 taxa of edible plants(54.4%), 270 taxa of medicinal plants(61.5%), 217 taxa of ornamental plants(49.4%), 46 taxa of timber plants(10.5%) and 56 taxa of pasture plants(12.8%).

• Korean Journal of Plant Resources
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• v.32 no.4
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• pp.355-378
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• 2019

We investigated the flora of vascular plants in Mt. Papyeong which is located in the northern part of Paju and the border of western DMZ through 13 surveys from April 2016 to August 2019. The vascular plants of Mt. Papyeong include 410 taxa; 361 species, 9 subspecies, 36 varieties, and 4 forms from 257 genera of 91 families. Among 410 taxa, we characterize endemic species, rare and endangered plants, floristic regional indicator plants, and climate change adapted plants in Korea. Specifically, there are 9 Korean endemic plants designated by Korea National Arboretum and 6 taxa by Korean Ministry of Environment. According to IUCN evaluation, there are 13 rare and endangered plants in Mt. Papyeong. On the other hand, 2 taxa were listed in a red list suggested by Korean Ministry of Environment. The floristic regional indicator plants include 46 taxa which are composed of 2 species of IV degree, 13 taxa of III degree, 11 taxa of II degree, and 20 taxa of I degree. Also, 27 naturalized plants were identified, and the percentage of Naturalized Index (NI) and Urbanization Index (UI) were 6.58%, and 8.43%, respectively. We hope that this investigation provide a valuable data for applying the further studies on the biodiversity and strategy of conservation of environment in the DMZ and Paju areas.