• Korean Journal of Environmental Biology
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• v.39 no.2
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• pp.169-183
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• 2021

This study was carried out to investigate the flora of the Hanbando wetland (Yeongwol-gun, Gangwon-do) from April 2019 to May 2020. Vascular plants were grouped into 508 taxa, comprising 93 families, 309 genera, 456 species, 10 subspecies, 37 varieties, and 5 forms. Among the investigated 508 taxa, 2 endangered species, 8 rare plants, and 8 endemic plants were identified. The specific plants by floristic region were grouped into 71 taxa including, 3 taxa of grade V, 10 taxa of grade IV, 15 taxa of grade III, 17 taxa of grade II, and 26 taxa of grade I. Naturalized and ecosystem disturbing plants were grouped into 57 taxa and 5 taxa, respectively. The percentage of naturalized plants species and urbanization index were estimated to be 11.2% and 17.8%, respectively. This study provides important basic information for the efficient management of Hanbando wetland, which possess a high conservation value since it is forms part of the list of Ramsar wetlands.

• Korean Journal of Plant Resources
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• v.35 no.2
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• pp.317-345
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• 2022

This study carried out a survey to utilize basic data for the conservation of northern lineage plants that are vulnerable to climate change, targeting algific talus slope of a specific forest biodiversity region in Yeotan-ri, Jeongseon-eup, Jeongseon-gun, Gangwon-do. The survey was conducted by dividing the wind hole into 625 m² inside and 6,925 m² outside based on the wind hole. The vascular flora were identified as 84 families, 203 genera, 296 species, 6 subs., 27 var., 2 for., and a total of 331 taxa. This was found to be about 7% of 4,724 species of vascular plants in Korea. Plants endemic to the Korean peninsula were identified as 19 taxa, including Syringa fauriei, and 11 taxa for rare plants designated by IUCN. Critically endangered grade (CR) was Paeonia obovata 1 taxa, Endangered grade (EN) was Forsythia saxatilis and Prunus choreiana 2 taxa. A total of 78 taxa were florisitc target species, and 19 taxa were classified for indicator plants in the limestone area. As for alien plants, 20 taxa such as Taraxacum officinale were identified, and the naturalization rate was 6.04% and the urbanization rate was 5.33%. Geographical plants of the study area are 2 taxa of Syringa fauriei and Syringa villosa subsp. wolfii.

• Korean Journal of Plant Resources
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• v.35 no.2
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• pp.248-288
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• 2022

The study on vascular plants of Gayasan National Park was conducted in 2016 over a period of 34 days from March to October 2016. As the study, a total of 768 taxa were recorded, including 118 families, 396 genera, 691 species, 15 subspecies, 51 varieties, and 11 forms. In the vascular plants, four endangered wild plants were recorded, Ponerorchis cucullata (L.) X.H.Jin, Trientalis europaea var. arctica (Fisch.) Ledeb., Cypripedium macranthos Sw., and Pedicularis hallaisanensis Hurus. Taxa of Least Concern (LC) or higher level on National Red List published by the Ministry of Environment of Korea were 21 taxa for example Tricyrtis macropoda Miq., and Lilium cernuum Kom. A total of 37 Korean endemic plants were investigated for example Abies koreana E.H.Wilson and Impatiens atrosanguinea (Nakai) B.U.Oh & Y.P.Hong. A total of 162 taxa of floristic regional indicators (3^rd to 5^th degree) were investigated including 9 taxa of V, 15 taxa of IV, 38 taxa of III, 45 taxa of II, and 53 taxa of I. Naturalized plants were recorded a total of 46 taxa with a Naturalization Index of 6.0%, the Urbanization Index was calculated to be 14.3% and 5 taxa of ecosystem disturbance plants were investigated such as Sicyos angulatus L., Rumex acetosella L., and Humulus scandens (Lour.) Merr. As the result of comparison with previous studies, in this study a total of 206 taxa were newly identified including 62 families, 144 genera, 184 species, 2 subspecies, 15 varieties, and 5 forms.

• Korean Journal of Plant Resources
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• v.35 no.5
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• pp.614-640
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• 2022

We investigated vascular plants of Bigeumdo and Dochodo Island in Shinan-gun, Jeollanam-do, Korea. By referring to 4 field surveys between June and September in 2021, a total of 490 taxa were identified and grouped into 113 families, 332 genera, 452 species, 6 subspecies, 27 varieties, and 3 forms. Among those observed, 232 taxa comprising 84 families, 189 genera, 220 species, 4 subspecies, 8 varieties, 4 forms were observed in Bigeumdo, 428 taxa comprising 107 families, 305 genera, 397 species, 5 subspecies, 23 varieties and 3 forms were observed in Dochodo. Among them, 7 taxa were Korean endemic plants. Protected species designated by the Ministry of Environment were 2 taxa of level II. In terms of threated plants according to the IUCN Red List Categoty, there were 5 taxa, consisting of 1 endangered species (EN), 3 vulnerable species (VU), 1 Near Threatened (NT). In total, there are 36 taxa of floristic regional indicator plants, including 1 level V taxa, 5 level IV taxa, 28 level III taxa. In Korea, 3 taxa were the northern distributional limit to Bigeumdo and Dochodo. Alien plants were 58 taxa.

• Korean Journal of Plant Resources
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• v.36 no.1
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• pp.32-61
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• 2023

To investigate the distribution of vascular plants growing at Wetland in Daegu·Gyeongbook, we surveyed from June 2020 to October in 2021. The flora of wetland was classified as a total of 459 taxa comprising of 104 families, 286 genus, 406 species, 12 subspecies, 34 varieties, 6 forma, 1 hybrid. Among them, the rare plants species 5 taxa, endemic plants 11 taxa, floristic regional indicator plants 57 taxa, naturalized plants 27 taxa and wetland plants 74 taxa were recorded. The percentage of urbanization index was 8.44%, the naturalized ratio was 5.88%, respectively.

• Korean Journal of Plant Resources
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• v.36 no.4
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• pp.314-340
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• 2023

Vascular plants of Yeonhwasan Mt., located in Taebaek-si, Gangwon-do, were investigated. Field surveys were conducted fourteen times between April and September of 2022. A total of 505 taxa were found consisting of 87 families, 282 genera, 441 species, 15 subspecies, 41 varieties, and 8 forma. Among them, the endemic plants of Korea were 22 taxa. The number of threatened and near threatened Red List plants designated by the Korean National Arboretum was four, comprising each one of critically endangered (CN), endangered (EN), vulnerable (VU), and near threatened (NT) species. The number of floristic target plants designated by the Ministry of Environment was 102, including one taxon of level V, 9 taxa of level IV, and 34 taxa of level III. Invasive alien plants were 34 taxa, and three taxa were ecosystem disturbance plants. The urbanization index of investigated site was 12.8%, and the naturalization index was 6.7%. To wisely manage Yeonhwasan, measures for preserving biodiversity and preventing invasive plants are needed.

• Korean Journal of Plant Resources
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• v.37 no.2
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• pp.171-202
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• 2024

If the plant genetic resources and information-sharing systems held by arboretums worldwide are effectively utilized, it is believed that a conservation system for plant diversity in the currently inaccessible North Korean region could be established. This study was conducted to review the scientific names of plants native to North Korea but not to South Korea and to assess the status of genetic resources held in domestic and international arboretums. To compile a list and status of North Korean plant's genetic resources, updated checklists of vascular plants in Korean Peninsula and online plant information databases were consulted to compile synonym, distribution range, and other related information. A total of 486 taxa (449 species, 13 subspecies, 21 varieties, 1 forma and 2 hybrids) from 236 genera and 64 families, representing 12.34% of the total native flora of the Korean Peninsular were presented in the North Korea plant list, and the presence of rare, endemic and northern lineage species was confirmed. It was found that 384 taxa from 190 genera, 53 families of North Korean plants are held as genetic resources in 333 arboretums and plant research institutions across 46 countries and 5 continents worldwide. This study is expected to contribute to the construction and application of a species list for plants native to the Korean Peninsula.

• Journal of Environmental Science International
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• v.6 no.2
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• pp.165-171
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• 1997

The floristic characteristics and ecological conservation measures for the plant resources of the Mt. Kumjung(801m), Pusan, Korea were discussed. The field works was done for about twenty times in nine major areas from March, 1995 to Octover, 1996. The total number of vascular plants In this area were summarized as 103 families, 312 genera, 493 species and 564 kinds. The fourteen kinds of artificially planted, ten kinds of Korean endemics and twenty-nine kinds of Korean rare and endangered species in the area were revised and compiled in the list. The flora of the area were categorized into the South-coast put of the Korean Region, where the species such as Platycarya strobilacea, Quercug serrata, Eutya japonica, Camellia japonica, Trachelosperm urn asia talcum vu . in termedium, Quercus acu tissima were roles as major floristic components in the Korean Region and endemized in the south-cosat part of Korea. The natural communities such as Pinus thunbergii Community, Quercus mongolica community, Cupinus laxiflora Community, Wistria floribunda Community and swamp vegetation in Bukmun area as well as upland grassland at the summit of Kodangpong were represented for their floristic values in the area. The thirty kinds of medichinal plant, fifteen kinds of ornamental plants and thirteen kinds of edible plants are faced potentially in endangered from the outrageous collections by the local peoples. The action plan for the conservation management of the area which enables sustainable use by the local peoples must have established in the near feature.

• Journal of environmental and Sanitary engineering
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• v.5 no.1
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• pp.34-45
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• 1990

The purpose of this reserch is to investigate the flora of Dumi Island. This island locates at $128^{\circ}$ 13' E. longitude and $34^{\circ}$ 41' N. latitude. As a result of our investigation, the distribution of plants on Dumi Island could be summarized as follows. The vascular plants through this investigation were 66 families, 121 genera, 127 species, 16 varieties, 2 forma, and 145 kinds. From 1945 to 1960, most Pinus densiflora and Quercus mongolica were cut and sent as fuel to the cities of Masan, Chungmu and Samchunpo. After these deforestation years, there was a change of policy in the area and then wood was substituted by coal blacks as fuel and along with this occurs reforestation. Because of the reforestation by the present administration and natural means of suctrees, Castamopsis cuspidata var. thunbergii, Camellia japonica and Machilus japonica; they were found to exist near Sheonangdang in the northern region at Hakli and at Kuchun in the south. In the central part of the island at Mt. Chunhwang there are slopes of 20-30 degrees which are cultivated by the islanders this mountain which can be cultivated and 65% or 830 islanders are farming this land. Although this 125.4 hectors is not a large portion, this mountain with its variety of growth at different elevations, seems to be very fertile causing thick growth at any level.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.23 no.2
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• pp.1-16
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• 2020

The current status of geographical distribution range of Deutzia paniculata, one of the korean endemic plants, was investigated based on the species distribution information. The information of the geographical range used for analysis includes all the published references to the distribution of D. paniculata, herbarium specimens in Korea National Arboretum (KH) including its online database: http://www.nature.go.kr, and field research. Although, D. paniculata was firstly recorded in Wonsan, Hamgyeongnam-do, North Korea, this research revelaved that D. paniculata is mainly distributed in Gyeongsangbuk-do and Gyeongsangnam-do, southern regions of the Korean Peninsula. According to the distribution map, this species was estimated on distribution edge of in Anyang region of Gyeonggi-do, Mt. Naejang of Jeollabuk-do and Mt. Taebaek of Gwangwon-do on the distribution edge. However, it was made use of intensive field survey to identify the natural population of the species in these regions. D. paniculata habitat was mainly distributed between 290 meters and 491 meters in altitude, but it was also found ranged from 936 to 959 meters in Gun-wi, Gyeongsangbuk-do, South Korea. The distribution slope was 5° to 35° and the north, N, NE and NW in the aspect. The flora of vascular plants in D. paniculata habitats was listed in 137 taxa: 54 families, 103 genera, 120 species, 2 subspecies, 12 varieties and 3 forms while Korean endemic plants were found in three taxa, Stewartia koreana, Weigela subsessilis and D. Paniculata. Based on a collection of non-biological environment and biological environment data, D. paniculata population were discussed to make strategy and basic research methods for sustainable preservation.