• Korean Journal of Plant Resources
• /
• v.31 no.5
• /
• pp.575-589
• /
• 2018

The purpose of this study is to provide the baseline data for conservation and management of the ecosystem of Gyeongju National Park by surveying and analysing the vascular plants distributed in Mt. Manhongbong (522 m). The vascular plants were surveyed form May 2012 to August 2017. The vascular plants on this site was classified as follow. Based on voucher specimens, the vascular plants of this site consisted of 91 families, 292 genera, 397 species, 4 subspecies, 48 varieties and 8 forms. The 2 taxa of threatened species, 11 taxa of rare plants and 14 taxa of Korean endemic plants were investigated. The specific plants by floristic region were totally 39 taxa, which were 3 taxa of grade V, 5 taxa of grade IV, 2 taxa of grade III, 11 taxa of grade II and 18 taxa of grade I. The naturalized plants were identified as 33 taxa and the percentage of naturalized index (NI) was 7.2%, and urbanized index (UI) was 10.3%, respectively. The invasive alien plants were 2 taxa, such as Ambrosia artemisiifolia L. and Aster pilosus Willd.

• Korean Journal of Plant Resources
• /
• v.34 no.6
• /
• pp.633-660
• /
• 2021

This study was carried out to elucidate the distribution of vascular plants and their usefulness of Mt. Munsusan (1,205 m) in Bonghwa County, North Gyeongsang Province, South Korea. The vascular plants that were investigated in 2 years (2019 ~ 2020) with 15 times consisted a total of 571 taxa; 94 families, 310 genera, 496 species, 4 subspecies, 63 varieties and 8 formas. For the Korean endemic plants, 17 taxa were recorded and 3 taxa of Vulnerable Species (VU) and 9 taxa of Least Concerned species (LC) categorized by the Korean Forest Service as rare plants were investigated in this region. Furthermore, IV, III degrees of floristic regional indicator plants designated by the Korean Ministry of Environment included 8 taxa and 27 taxa, respectively. Among them, edible, medicinal, ornamental, feed/composting, industrial plants were 391 taxa, 359 taxa, 301 taxa, 241 taxa, 217 taxa, respectively. In addition, 25 taxa of naturalized plants were observed.

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

• Journal of the Korean Society of Environmental Restoration Technology
• /
• v.9 no.3
• /
• pp.59-75
• /
• 2006

The vascular plants of this site was listed 360 taxa; 86 families, 229 genera, 311 species, 42 varieties and 7 forms. Specific plant species by floral region were total 40 taxa; 2 taxa(Crypsinus hastatus, Prunus yedoensis) in class V, Patrinia rupestris in class IV, 6 taxa(Elymus mollis, Carex laticeps, Poncirus trifoliata, Melia azedarach var. japonica, Koelreuteria paniculata, Crepiastrum lanceolatum) in class III, Cirsium schantarense in class II, 30 taxa(Lygodium japonicum, Pteris multifida, Phacelurus latifolius, Asparagus cochinchinensis, Ficus erecta, Machilus thunbergii, Zanthoxylum planispinum, Euphorbia esula, Mallotus japonicus, Cayratia japonica, Camellia japonica, Glehnia littoralis, Lysimachia fortunei, Messerschmidia sibirica, Ixeris repens etc.) in class I. The naturalized plants in this site were 14 families, 34 genera, 41 species, 1 varieties, 42 taxa and naturalization rate was 20.3% of all 207 taxa vascular plants. Based on the list of the rare plants by the Forest Research Institute, 2 taxa were recorded in the studied areas; Phacelurus latifolius, Crypsinus hastatus and based on the list of Korean endemic plants, 7 taxa were recorded; Populus tomentiglandulosa, Filipendula glaberrima, Prunus yedoensis, Forsythia koreana, Paulownia coreana, Weigela subsessilis, Carpinus coreana. So, wild plants disturbing ecosystem like Solanum carolinense and Ambrosia artemisiifolia var. elatior have been increasing, it needs continuing control and conservation measures on the plant ecosystem.

• Journal of the Korean Society of Environmental Restoration Technology
• /
• v.21 no.1
• /
• pp.41-54
• /
• 2018

The purpose of this study was to present the fundamental data for conservation and management of wetland ecosystem by surveying and analysing the vascular plants distributed in major wetlands, Gyeongju National Park. The study sites were Tohamsan wetland, Amgok wetland and Namsan wetland. The numbers of vascular plants were summarized as 200 taxa including 70 families, 145 genera, 171 species, 2 subspecies, 23 varieties and 4 forms. The threatened species designated by Ministry of Environment was Utricularia yakusimensis, and the rare plants were 7 taxa including Utricularia yakusimensis, Drosera rotundifolia, Mosla japonica, Utricularia bifida, Pogonia japonica, Utricularia racemosa and Iris ensata var. spontanea. The Korean endemic plants were Lespedeza maritima and Weigela subsessilis. The specific plants by floristic region were 12 taxa including 3 taxa of grade V, 1 taxa of grade IV, 1 taxa of grade III, 2 taxa of grade II and 5 taxa of grade I. The plants with approval for delivering oversea were 9 taxa including Glycine soja, Saussurea pulchella, Habenaria linearifolia and so forth. The naturalized platns were 5 taxa including Rumex obtusifolius, Ambrosia artemisiifolia, Bidens frondosa, Erigeron annuus and Erigeron strigosus, the invasive alien plant was Ambrosia artemisiifolia.

• Korean Journal of Plant Taxonomy
• /
• v.46 no.1
• /
• pp.83-116
• /
• 2016

This study was carried out to investigate the flora and vegetation of Yokjido Island in Tongyeong-si, Korea. Vascular plants collected six times (from March of 2015 to January of 2016) were identified as 547 taxa in total, including 113 families, 354 genera, 487 species, four subspecies, 50 varieties, four forms and two hybrids. The first records from this region contained 314 taxa. In the flora of this area, endemic Korean species numbered eight taxa, and the red list of vascular plants according to the IUCN valuation basis numbered six taxa. In addition, 86 taxa of floristic regional indicator plants specially designated by the Ministry of Environment are included. Among the species investigated in this survey, 99 taxa were identified as specific species bio-geographically as compared floras of other terrestrial regions; 97 taxa of plants in southern areas and two taxa of limited distribution plants on the Korean Peninsula. In all, 74 naturalized plants were recorded in the investigated area. Samples of the forest vegetation of Yokjido Island were mainly classified as Pinus thunbergii community and the Alus firma community. Vertical structures of the communities were stable, and a DBH-class analysis showed that the dominant tree species would be maintained. If disturbance factors such as thinning could be halted, the composition of woody species and herbaceous species would change.

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

• Journal of Species Research
• /
• v.8 no.1
• /
• pp.136-159
• /
• 2019

This study was carried out to investigate the flora of six islands belonging to the Gogunsan Archipelago (i.e., Sinsi-do, Seonyu-do, Munyeo-do, Yami-do, Bian-do, and Duri-do) in the Korean Peninsula. As results of five field surveys from March to October of 2016, we have identified 575 total taxa, representing 527 species, five subspecies, 42 varieties, and one hybrid, placed in 358 genera and 118 families. Of these 575 taxa, four are endemic to Korea, six taxa are listed on the Korean Red List of threatened species, 67 are floristic regional indicator plants, and 74 are invasive alien species. In this study, we compared species richness among the islands, and find that the larger the islands, the higher the species richness. In the case of habitat affinity types, forest species were most common, followed by farmland, seacoast, bare ground and wetland species. From similarity analyses based on the composition of vascular plants, each island did not exhibit either local specificity or unique diversity. On the contrary, the proportion of invasive alien and ruderal species may increase by human activities. Investigations and analyses of island flora such as this are important to assess the current status of the flora, predict future vegetation patterns and the spread of the alien species, and establish managment plans of plant diversity.

• Korean Journal of Plant Resources
• /
• v.11 no.3
• /
• pp.326-334
• /
• 1998

Vascular cambium in 16 species of Salicaceae is nonstoried in all of them and is made up of fusiform and ray initials. The growth of cambial girth occurred by pseudotransverse division of fusiform initials and subsequent apical intrusive growth of daughter initials. The measurements of fusiform initials in tangerntial sections have revealed that the average length varies from 252.2-437.1${\mu}{\textrm}{m}$ in investigated species, with the maximum being in Populus euramericana and the minimum in Salix purprea var. Multinervis. The length of fusiform initials depends on the length of the tapering end wall , therefore, the longer the length of the tapering end wall, therefore, the longer the length of the taperding end wall, the longer the length of fusiform initials. Ray initials have their own size, magnitude, and frequency of occrrence in each species. The relative proportion of ray initials fall about 15.0-24.5% in Salicaceae. Shrubby species of Salix have a lower ratio of ray initials than the species which possess wider trunks. New ray initials are originated from cut off the side or the end of fusiform initials and central partition of a fusiform initials.

• Korean Journal of Plant Taxonomy
• /
• v.44 no.2
• /
• pp.136-163
• /
• 2014

This study was carried out to investigate flora of Golji stream watershed in Gangwon province. The vascular plants which were collected in 11 times (from May 2012 to Nov. 2013) were identified as 825 taxa in total, including 124 families, 420 genera, 730 species, 8 subspecies, 78 varieties, 6 forms and 3 hybrids. In the flora of this area, Korean endemic species were 34 taxa, red list of vascular plants according to IUCN valuation basis were 34 taxa and 165 taxa of specially designated floristic regional indicator plants by the Ministry of Environment. Among those species investigated in this survey, 101 taxa were identified as specific species bio-geographically as compared to flora of other terrestrial regions; 37 of calcicolous plants, 64 with distribution in the northern part of the Korean peninsula. 34 aquatic taxa and 69 naturalized plants were recorded in the investigated area.