• Korean Journal of Environment and Ecology
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• v.8 no.1
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• pp.1-10
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• 1994

Present problems of the Korean rare and endangered plant species evaluations are discussed. It is proposed that the evaluation criteria for Korean rare and endangered are urgently needed in the future. The translation of new proposed criteria into Korean should be discussed in order to avoid confusion in the future. The draft of a new criteria system for rare and endangered plant species. prepared by the S. S. C. (Species Survival Commission) of I. U. C. N (International Union of Conservation of Nature) are introduced. The proposed draft for the criteria being developed by the S. S. C. of I. U. C. N. are Extinct, Extinct in the Wild, Critical, Endangered, Vulnerable, Susceptible, Safe /Low Risk, Insufficiently Known, and Not Evaluated. It is expected to take the more time to be technically developed further and also officially recognized by the I. U. C. N. for the practical use in the future.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.12 no.5
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• pp.42-58
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• 2009

This study was carried out to survey the vascular plants of the construct-reserved site of ecological forest in Kohang-ri, Sangri-myeon, Yecheon-gun, Gyeongsangbuk-do, Korea. The results are as follows. The vascular plants in this site were recorded as 392 taxa; 85 families, 254 genera, 341 species, 45 varieties and 6 forma. The Korean endemic plants were 5 taxa; Salix hallaisanensis, Clematis trichotoma, Chrysosplenium barbatum, Philadelphus schrenckii and Weigela subsessilis. The rare plants designated by Korea Forest Service were 2 taxa; Iris ensata var. spontanea and Aristolochia contorta. The naturalized plants were 25 taxa; Bromus tectorum, Dactylis glomerata, Panicum dichotomiflorum, Bilderdykia dumetora and so forth. In the results of analysis by floristic region, the specific plants were summarized as 31 taxa; Matteuccia struthiopteris, Oxalis obtriangulata, Betula davurica, Cimicifuga heracleifolia and so forth. The plants with approval for delivering oversea were 4 taxa; Salix hallaisanensis, Aristolochia controrta, Clematis trichotoma and Chrysosplenium barbatum. The plant resources were 186 taxa of ornamental plant, 241 taxa of edible plant, 274 taxa of medicinal plant and 202 taxa of others.

• Korean Journal of Environment and Ecology
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• v.19 no.2
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• pp.112-118
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• 2005

Based on the specific plant species for environmental assesment by the Ministry of Environment(MoE), a total of 68 taxa were identified; 29 taxa for the floristic degree(FD) I, 12 taxa for the FD II, 11 taxa for the FD III, 9 taxa for the FD IV and 6 taxa for the FD V. The endangered plant species, in Woraksan National Park, such as Lilium cernum and Berchemia berchemiaefolia are categorized as the Conservation Degree (CD) II which is designated by the MoE. The rare and endangered species such as Crypsinus hastatus, Lilium cernum, Berchemia berchemiaefolia, Lilium callossum, Gastrodia elata, Aristolochia contorta, Koelreuteria paniculata, Rhododendron tschonoskii, Scopolia japonica, Cypripedium macranthum, Paeonia japonica and Thymus quinquecostatus including 12 plant taxa are categorized as Rare and Endangered Plant Species by the Korea Forest Service.

• Korean Journal of Environment and Ecology
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• v.16 no.4
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• pp.345-358
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• 2003

The vascular plant species in the areas of Gonamsan and Shiribong in the Baekdudaegan were summarized as 295 texa: 89 families, 193 genus, 245 species, 44 varieties and 6 forms.10 taxa were recorded in the surveyed areas as the Korean endemic plants: Hosta capitat (Liliacease), Polygonatum lasianthum var. corenum (Liliaceae), Chloranthus japonicus (Cloranthaceae), Salix hulteni (Salicaoeae), Clematis richotoma (Ranunculaceae), Spiraea prunifolia for. simpliciflora (Rosaceae), Vicia unijuga (Fabaceae), Viola albida (Violaceae), cornus walter(Cornaceae), Weigela subsessilis (Caprifoliaceae).According to the list of Korean rare and endangered plants complied in the studied areas:Iris ensata var. spoyanea(Iridaceae), Viola albida (Vioaceae) and Aristolochia contorta (aristolochiaceae) Due to the rapid destruction and increase of visitors and the studied areas are located close to the villages, the naturalized plant species in the areas were more frequently appeared than the rare and endangered plant species.

• Journal of the Korean Professional Engineers Association
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• v.44 no.2
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• pp.39-42
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• 2011

The main concern at the moment is securing rare earth(RE) resources, because the RE is the essential elements in green technology such as hybrid car, wind power plant, LED, display etc. It's impossible Korea will be a advanced country without securing RE. The importance of investment radically in the securing RE resources and professional engineers can not be overinvested.

• Korean Journal of Environment and Ecology
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• v.15 no.1
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• pp.1-16
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• 2001

현재 중국에서는 100개 이상의 식물원이 있으며, 대부분의 식물원은 희귀식물이나 멸종위기 식물의 생식질 자원을 보유하고 있다. 중국의 식물원에서 현지 외 보전과 이와 관련한 일을 수행하기 위하여 1999년 REPC-CBG-DATA라는 데이터베이스를 구축하였다. 본 데이터베이스 구축 결과에 따라 중국내 389종의 희귀 및 멸종위기 식물에 대한 다양한 정보와 보전상태를 분류하였으며, 이를 토태로 관리보전에 활용할 수 있게 되었다. 본 논문에서는 중국 내 희귀 및 멸종위기 식물의 보전을 위하여 각 식물원에 수집된 식물종을 대상으로 REPC-CBG-DATA를 바탕으로 각 해당 식물종의 관리에 대하여 토론하였다.

• Korean Journal of Plant Resources
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• v.28 no.4
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• pp.400-410
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• 2015

Juniperus chinensis (Cupressaceae) is a valuable woody plant resource, but this rare plant is only distributed in restricted regions in Korea. In this study, we surveyed the geographic distribution regions, variation of sex ratio and the dynamics of natural populations of J. chinensis. in order to establish conservation strategies for the sustainable conservation of this important resource tree. The 17 natural populations of J. chinensis are restrictively distributed in the shore cliffs of (1) Ulleungdo island, (2) Gyeongju-si to Gangneung-si of the eastern coast, the riverside cliff along (3) Donggang-river of Jungsun-gun and Pyeongchang-gun and (4) branch of Nakdonggang-river in Uiseong-gun. The populations in Ulleungdo island showed continuous population distribution of over 200 individuals, but populations in other regions had discontinuous population distribution of under 200. The population of J. chinensis surveyed in Korea was estimated in ca. 3,200 individuals. The sex ratio (male/female) among populations of J. chinensis was diverse with variation from 0.46~1.67 range, but showed no significance. The sex ratio of the total individuals by species level was 0.74, and the percentage of female tree was significantly higher than the male. The results of dynamics analysis within population among regions showed that seedlings and saplings of J. chinensis in three regions surveyed were continuously regenerating. The distribution of DBH class showed a stable population structure of inverse J shape graph, but fragmentation and decrease in populations because of invading broad-leaved shrubs and trees from the surroundings were concerned. Further studies, and in situ and ex situ conservation strategies for the sustainable conservation on natural populations of this rare resources woody plant, J. chinensis in Korea are recommended.

• Journal of Powder Materials
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• v.19 no.1
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• pp.79-86
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• 2012

• Journal of the Korean Society of Environmental Restoration Technology
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• v.17 no.3
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• pp.13-33
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• 2014

The purpose of this study is to offer the raw data for establishing the management and restoration plan by objective surveying and analysing the flora distributed in Seoak District, Gyeongju National Park, Korea. The flora summarized as 411 taxa including 92 families, 285 genera, 363 species, 2 subspecies, 41 varieties and 5 forms. The rare plants designated by Korea Forest Service were 2 taxa including Exochorda serratifolia and Potentilla discolor. The Korean endemic plants were 3 taxa including Philadelphus schrenkii, Lespedeza maritima and Weigela subsessilis. The specific plants by floristic region were 16 taxa including Asplenium sarelii, Pyrrosia petiolosa, Vitex negundo var. incisa and so forth. The target plants adaptable to climate change were 2 taxa including Lespedeza maritima and Carpesium macrocephalum, and the plants with approval for delivering oversea were 4 taxa including Exochorda serratifolia, Glycine soja, Lespedeza maritima and Weigela subsessilis. The naturalized plants were 51 taxa including Phytolacca americana, Viola papilionacea, Lamium purpureum and so forth. The invasive alien plants were 3 taxa including Ambrosia artemisiifolia, Aster pilosus and Lactuca scariola. NI(Naturalized Index) was 12.4% of all 411 taxa of surveyed flora in this study and UI(Urbanized Index) was 15.9% of all 321 taxa of naturalized plants in Korea. Potentilla discolor in rare plant, Philadelphus schrenkii in endemic plant and Dictamnus dasycarpus in specific plant were established the conservation plan. Whereas, invasive alien plants such as Ambrosia artemisiifolia, Aster pilosus and Lactuca scariola should be removed as soon as possible. The damaged sites in Seoak District were divided between wildfire area and farmland. To restore a forest fire site, we will have to apply a natural renewal and community planting. In case of farmland, we will have to do ecological planting using native species and constrcut a forest wetland.

• Journal of Environmental Science International
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• v.30 no.2
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• pp.119-133
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• 2021

The purpose of this study was to provide basic information for rational management plans for sustainable conservation and utilization by comprehensive analyzing the flora distributed in Yongchu valley, Changwon-si. The flora of Yongchu valley were summarized as 319 taxa including 93 families, 212 genera, 285 species, 3 subspecies, 6 forms and 25 varieties. The endemic plants were 5 taxa such as Chrysosplenium pilosum var. fulvum, Impatiens koreana, Lespedeza maritima, Thalictrum acteifolium and Weigela subsessilis. The rare plants were 11 taxa including I. koreana, Prunus yedoensis and Magnolia kobus. The specific plants by floristic region were 38 taxa including I. koreana, Jeffersonia dubia., M. kobus and P. yedoensis which are class V. The naturalized plants were 11 taxa including Solanum americanum, Aster pilosus, Crassocephalum crepidioides and Cerastium glomeratum and so forth and invasive alien plants among these plants was 1 taxa of A. pilosus. The target plants adaptable to climate change were 8 taxa including Corydalis turtschaninovii of northern plant, I. koreana of endemic plant, and Meliosma myriantha of southern plant.