• Korean Journal of Environment and Ecology
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• v.34 no.5
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• pp.372-395
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• 2020

This study aimed to elucidate the distribution of vascular plants in Mt. Goryeo in Ganghwa-gun, Korea. The results of 14 field surveys from March 2018 to August 2019 identified 629 total taxa, representing 568 species, 10 subspecies, 45 varieties, two forms, and four hybrids in 371 genera and 112 families. The plant formation of Mt. Goryeo is the deciduous broad-leaved and conifer mixed forest, which is the common one in the middle part of the Korean Peninsula. Most parts of the mountain are covered with a young secondary forest, mainly composed of Quercus and Pinus spp. Out of the 629 taxa, 314 were first recorded in the region, six were endemic to Korea, four were listed on the Korean Red List of threatened species, 63 were floristic target plants, and 58 were invasive alien plants. The percentages of the naturalized index (NI) and urbanization index (UI) were 9.2% and 15.5%, respectively. The area showed a high plant diversity with many rare plants and phytogeographically important plants. This study discussed in detail conservation strategies to ensure biodiversity and effective management of Mt. Goryeo. The study results can be used as the reference for the preparation of biodiversity conservation and the establishment of management measures.

• Research in Plant Disease
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• v.20 no.4
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• pp.270-274
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• 2014

Division of Forest Diseases & Insect Pests, Korea Forest Research Institute, Seoul 130-712, Korea The objective of this study was to evaluate the virulence of geographically different isolates of oak wilt pathogen, Raffaelea quercus-mongolicae and other Raffaelea species. In this study, mature trees of Quercus mongolica were inoculated with the various isolates of Raffaelea spp. and their virulence was evaluated by measuring the extent of sapwood discoloration resulting from the inoculation. The average length of discolored sapwood in a lateral direction was longest in the trees inoculated with the isolates from Korea (8.69 cm) followed by R. quercivora (7.51 cm) and the other Raffaelea spp. (3.35 cm). The lateral length of discolored sapwood caused by the inoculation with Korean strains varied from 4.71 to 14.90 cm indicating their differences in virulence. The area of discolored sapwood caused by the inoculation with Raffaelea spp. varied from 1.57 to $8.42cm^2$ indicating their differences in virulence. Based on the length and area of the discolored sapwoods, isolated YY and wj43 appeared to have the highest virulence among all the Raffaelea isolates tested. Each of the two isolates was obtained from Gangwon Province and Jeonbuk Province, respectively.

• Korean Journal of Environmental Biology
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• v.37 no.3
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• pp.229-248
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• 2019

This study was carried out to investigate the flora of Mt. Jaamsan on the Gyeongsang supergroup, Korea. From the results of eight field surveys from March to October 2017, we have identified 530 total taxa, representing 483 species, eight subspecies, 35 varieties, two forms, and two hybrids, which were placed in 325 genera and 110 families. The plant formation of Mt. Jaamsan is the deciduous broad-leaved and conifer mixed forests, which are the common ones in the middle part of the Korean Peninsula. Most of the mountain is covered with young secondary forest, which is mainly composed of Quercus spp., and Pinus. Out of these 530 taxa, 12 are endemic to Korea, 17 taxa are listed on the Korean Red List of threatened species, 65 are floristic target species, and 55 are invasive alien species. The percentage of naturalized index(NI) and urbanization index (UI) were 10.4% and 17.2%, respectively. Mt. Jaamsan has a high plant diversity, including endemic and rare species, which consist of geomorphological landscapes. We considered that the composition and distribution of species are affected by the different environmental factors according to the sedimentary rocks, drying ridges, valleys, and streams. Together with the rocks and soils were the substrate type that play a major role in providing the unique habitats for sun plants in the area.

• Korean Journal of Plant Resources
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• v.20 no.2
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• pp.133-144
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• 2007

The vascular plants at the Wolmyung Park was listed 479 taxa: 105 families, 317 genera, 417 species, 1 subspecies, 55 varieties and 6 forms. 479 taxa listed consists of 291 taxa of edible plants (60.8%), 335 taxa of medicinal plants (69.9%), 234 taxa of ornamental plants (48.9%) and 243 taxa of the others (50.7%). Based on the list of the rare plants by the Forest Research Institute, 4 taxa were recorded in the investigated areas; Aristolochia contorta (Preservation priority order, No. 151), Magnolia kobus (No. 187), Prunus yedoensis (No. 110), Berchemia racemesa (No. 67) and based on the list of Korean endemic plants, 9 taxa were recorded; Cephalotaxus koreana, Carex okamotoi, Populus tomentiglandulosa, Prunus yedoensis, Forsythia koreana, Asperula lasiantha, Weigela subsessilis, Adenophora triphylla var. hirsuta, Aster koraiensis. Specific plant species by floral region were total 31 taxa; Prunus yedoensis, Berchemia racemosa in class V, Magnolia kobus, Wistaria floribunda in class IV, 4 taxa (Spiraea salicifolia, Acer palmatum, Asperula lasiantha, etc.) in class III, Caryopteris incana in class II, 22 taxa (Clematis patens, Orixa japonica, Euscaphis japonica, Grewia biloba var. parviflora, etc.) in class I. The naturalized plants in this site were 14 families, 35 genera, 44 species, 2 varieties, 46 taxa and naturalization rate was 9.6% of all 479 taxa vascular plants.

• Korean journal of applied entomology
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• v.53 no.2
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• pp.111-133
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• 2014

A revised checklist of host plants for 181 species belonging to 103 genera in six subfamilies of Cerambycidae (Coleoptera: Chrysomeloidea) in Korea is provided on the basis of the results of field surveys and literature review. A total of 14 new cerambycid-host associations are confirmed and the Manchurian striped maple, Acer tegmentosum Maxim. (Aceraceae), is listed as a new host of the Asian longhorn beetle, Anoplophora glabripennis (Motschulsky). The names of more than 170 host plants species belonging to 107 genera in 44 families are compiled. Among them, four families (Ulmaceae, Pinaceae, Fagaceae and Betulaceae) are confirmed as the main host families (more than 23%) of most of the cerambycid species. All invalid scientific names and Korean names of plants and cerambycids in the previous literature are corrected in the present paper.

• Korean Journal of Plant Taxonomy
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• v.43 no.2
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• pp.81-89
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• 2013

In general, studies of aerial parasitic plants known collectively as mistletoe have been carried out to investigate their ecological and agricultural characteristics. However, with the recently increased level of interest in medicinal resources, research on different types of Korean mistletoe has also increased. This study was carried out to review the work on the taxonomy and ecology of Korean mistletoe in preparation for the industrial use of these plants in the future. Mistletoe types are flowering plants belonging to Santalales, which exist in the form of parasites on the branches of trees or shrubs. In Korea, five taxa of four genera in two families of mistletoe exist: Viscum coloratum (Komarov) Nakai f. coloratum, Viscum coloratum (Komarov) Nakai f. rubroaurantiacum (Makino) Kitagawa and Korthalsella japonica (Thunb.) Engl. in Santalaceae, along with Loranthus tanakae Franch. et Sav. and Taxillus yadoriki (Sieb. ex Maxim.) Danser in Loranthaceae. As taxonomic studies of these species remain insufficient and given that the distribution ranges of these species are very wide, further observations pertaining to the morphological variations in each species are necessary. The distribution of mistletoes is known to be determined by the host specificity, the interval between the hosts, the environmental condition, the habits of the host plant, the eating characteristics of mediators in the area, and their habitat selection features.

• Korean Journal of Plant Resources
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• v.31 no.2
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• pp.149-161
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• 2018

This study was carried out to investigate the flora of Deokjeongsan Mt. (Ganghwa-gun) from March to October 2016. The vascular plants identified during the 8 round field surveys were a to total of 484 taxa: 107 families, 305 genera, 423 species, 8 subspecies, 48 varieties, 4 forms and 1 hybrid. The plant formation of Deokjeongsan Mt. is the deciduous broad-leaved and conifer mixed forest which is the common one in the middle part of Korean peninsula. All most mountain covered with young secondary forest which is mainly composed of Pinus and Quercus. The plant species diversity largest families were Asteraceae (62 taxa, 12.7%), Poaceae (48 taxa, 9.9%), Cyperaceae (27 taxa, 5.6%), Fabaceae (23 taxa, 4.7%), and Lamiaceae (21 taxa, 4.3%). The four taxa of Korean endemic plants such as Clematis brachyura Maxim., Salix koriyanagi Kimura ex Goerz, Carex brevispicula G. H. Nam & G. Y. Chung, and Hemerocallis hakuunensis Nakai were collected. The vascular plants on the red list according to IUCN evaluation basis were found to be five taxa: Near Threatened (NT) species of Senecio argunensis Turcz., Least Concern (LC) species Pseudoraphis ukishiba Nakai, and Not Evaluate (NE) species of Thladiantha dubia Bunge, Cirsium lineare (Thunb.) Sch. Bip., and Scorzonera austriaca ssp. glabra Lipsch. & Krasch. ex Lipsch., respectively. The floristic regional indicator plants found in this area were 26 taxa comprising one taxa of degree V, two taxa of degree IV, four taxa of degree III, eight taxa of degree II, and 11 taxa of degree I. In addition, the alien plants were identified as 46 taxa and the percentage of naturalized index (NI) was 9.5%, and urbanization index (UI) was 14.3%, respectively.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.04a
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• pp.26-26
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• 2018

본 연구는 DMZ 및 접경지역에서 생육하고 있는 자생식물에 대하여 조사된 연구자료와 국립수목원 DMZ자생식물원에서 자체 조사로 수행된 미조사지역 연구 등을 집대성한 DMZ 일원의 관속식물상 가운데 행정구역상 고성군, 인제군, 양구군, 화천군에 해당하는 동부지역 관속식물의 유용자원 현황에 대하여 기초자료를 제공하고자 하였다. 동부지역은 고성군의 석호들을 포함한 저층습지 및 해안지역과 설악산(1,708m), 점봉산(1,424m), 화악산(1,468m), 등의 고산지대, 대암산(1,304m) 정상부근에 위치한 고층습지 용늪(1,280m)까지 이르는 다양한 생활환경 특성을 포함하고 있다. DMZ일원의 관속식물상 157과 754속 2,047종 12아종 340변종 105품종 총 2,504분류군 중 40.2%인 111과 438속 873종 4아종 113변종 17품종 1,007분류군이 확인된 동부지역 유용식물의 조사 결과 식용식물 순채, 고려엉겅퀴, 병풍쌈 등 336분류군(33.3%), 사료용식물 산뽕나무, 고광나무, 새 등 334분류군(33.1%), 약용식물 주목, 백부자, 삼지구엽초 등 270분류군(26.8%), 관상용식물 제비동자꽃, 백작약, 만병초 등 118분류군(11.7%), 목재용식물 일본잎갈나무, 소나무, 오동나무 등 38분류군(3.7%), 염료용식물 밤나무, 매발톱나무, 갈매나무 등 26분류군(2.5%) 섬유용 식물 개모시풀, 쐐기풀, 참싸리 등 8분류군(0.7%), 산업용식물 굴참나무, 붉나무, 노박덩굴 3분류군(0.2%), 용도를 알지 못하는 식물 280분류군(27.8%)으로 나타났다.

• Korean Journal of Environment and Ecology
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• v.32 no.4
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• pp.392-412
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• 2018

This study was conducted from 2012, which was a year before forest road construction in Minjujisan, to 2015 to verify effects on flora and vegetation change annually before and after the construction, and to provide strategies to examine and manage flora changes. The plant communities in the investigated area around the forest road is separated by the slopes into Quercus mongolica community is on the northwestern slope and Quercus variabilis and Larix kaempferi communities is on the southwestern slope. The annual investigation of flora change before and after the construction showed that there were 209 taxa that had 71 families, 153 genera, 178 species, 27 varieties, and 4 forma in 2015 while there were 66 taxa that had 44 families, 59 genera, 51 species, 13 varieties, and 2 forma in 2012 before the construction, indicating an increase of 143 texa before and after the construction. The investigation of the slope area adjacent to the forest road constructed in 2013, in particular, showed increasing coverage and taxa each year after the construction. This was caused by significantly increased light transmittance after the construction. The investigation in 2015 showed increased coverage of herbaceous layer the year after development of the forest road and the remarkable increase of the coverage of shrub layer in 2015. Further, the coverage on the slope adjacent to the forest road increased more in 2015 than in 2013 and 2014. Therefore, we expect supplementary studies will help to generate a detail manual on flora and vegetation change before and after forest road construction.

• Korean Journal of Plant Resources
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• v.20 no.5
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• pp.375-382
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• 2007

The vascular plants of the studied area in the Mt. Seokbul appeared to be 342 taxa; 96 families, 249 genera, 293 species, 2 subspecies, 43 varieties and 3 forms and 1 cultivar. Based on the list of the rare plants by the Forest Research Institute, 2 taxa existed in the studied areas; Lloydia triflora(Preservation priority order; No. 169), Aristolochia contorta(No. 151) and based on the list of Korean endemic plants, 7 taxa existed; Cephalotaxus koreana, Carex okamotoi, Populus tomentiglandulosa(Planted species), Indigofera koreana, Weigela subsessilis. Rhododendron yedoense var. poukhanense, Forsythia koreana (Planted species). Specific plant species by floral region were total 18 taxa; Wistaria floribunda(Planted species) in class IV, Lloydia triflora, Acer palmatum in class III, 15 taxa (Cephalotaxus koreana, Quercus variabilis, Ulmus parvifolia, Aristolochia contorta, Pyrus ussuriensis, etc.) in class I. The naturalized plants in this site were 11 families, 26 genera, 32 species, 2 varieties, 34 taxa, and naturalization rate was 9.9% of all 342 taxa vascular plants. The plant communities in the Mt. Seokbul were classified as; Pinus densiflora community(No. 1, 3, 4) and Pinus thunbergii community(No.2).