• Korean Journal of Plant Resources
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• v.30 no.5
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• pp.507-521
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• 2017

This study was carried out to the vascular plants in Mt. Danseok (827 m) District, Gyeongju National Park and provide a basic data for the conservation and management of natural resources. The vascular plants were surveyed from May 2011 to October 2016. The flora on Mt. Danseok District was classified as follows. Based on voucher specimens, the flora of this site consisted of 97 families, 331 genera, 489 species, 4 subspecies, 48 varieties and 11 forms. The 11 taxa of rare plants and 14 taxa of Korean endemic plants were investigated. The specific plants by floristic region found in this site 50 taxa comprising 1 taxa of grade V, 5 taxa of grade VI, 8 taxa of grade III, 12 taxa of grade II and 24 taxa of grade I. The 37 taxa of naturalized plants and 2 taxa of invasive alien plants were investigated.

• Korean Journal of Plant Resources
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• v.24 no.2
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• pp.214-235
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• 2011

The field survey to investigate the flora in Sogwang-ri, Uljin-gun, was carried out 10 times, from April 2009 to September 2010, and The results summarized as 430 taxa, 89 families, 253 genera, 367 species, 3 subspecies, 53 varieties, and 7 forms. Among these, 13 taxa were recorded as Korean endemic plant species and 11 taxa as rare plant species, which applied by the Korean Forest Service. Furthermore, 54 taxa were listed as specific plant species based on phytogeographical points of view and based on the list of those plants approved for delivery overseas, 17 taxa were recorded as such in the investigated area. There were 15 taxa identified as naturalized plants, and their naturalization ratio was found to be 3.4%. Among the 430 taxa, 178 taxa (40.9%) were categorized as edible plants, 145 taxa (33.7%) as medicinal plants, 114 taxa (26.5%) as pasture plants, 63 taxa (14.6%) as ornamental plants, 15 taxa (3.4%) as timber plants, 11 taxa (2.5%) as fiber plants, and 4 taxa (0.9%) as industrial plants.

• Korean Journal of Plant Resources
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• v.29 no.2
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• pp.204-224
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• 2016

This study was carried out to investigate the vascular plants of the protected area for forest genetic resource conservation in the Korea national Baekdudaegan arboretum. The vascular plants collected 12 times (from April 2007 to August 2014) were consisted of total 569 taxa; 89 families, 289 genera, 489 species, 5 subspecies, 66 varieties and 9 forms respectively. The 20 taxa of Korean endemic plants and 21 taxa of Korean rare plants were investigated. The floristic regional indicator plants found in this area were 112 taxa comprising 2 taxa of grade V, 8 taxa of grade IV, 23 taxa of grade III, 40 taxa of grade II, 39 taxa of grade I. The introduced and naturalized plants were counted as 22 taxa, therefore naturalized ratio was 3.8%. 577 taxa listed consists of 223 taxa (39.2%) of edible plants, 168 taxa (29.5%) of medicinal plants, 202 taxa (35.5%) of pasture plants, 58 taxa (10.2%) of ornamental plants, 26 taxa (4.6%) of timber plants, 5 taxa (0.9%) of fiber plants and 4 taxa (0.7%) of industrial plants.

• Korean Journal of Plant Resources
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• v.33 no.4
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• pp.311-336
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• 2020

The flora of Sejong were summarized as 531 taxa including 104 families, 315 genera, 462 species, 3 subspecies, 59 varieties and 7 form. The rare plants were 8 taxa including Nepeta cataria L. and Aristolochia ontorta Bunge. The Korea endemic plants were 9 taxa including Populus tomentiglandulosa T. B. Le and Clematis trichotoma Nakai.. The specific plants were 42 taxa including Phytolacca esculenta Van Houtte(V), Corydalis decumbens (Thunb.) Pers(IV), Poncirus trifoliata Raf(III), Pseudostellaria coreana (Nakai) Ohwi(II), Cyrtomium fortunei J.Sm.(I). The naturalized plants were 49 taxa including Sicyos angulatus L, Ambrosia trifida L, Physalis angulata L. Panicum dichotomiflorum Michx., Galinsoga parviflora Cav, and Erigeron philadelphicus L. Especially, Sicyos angulatus L., Phytolacca americana L. and Bidens frondosa L. have been spread throughout the country are required to manage. The naturalized index(NI) and urbanized index(UI) were 8.7% and 15.3%. Useful plants incuding Edible was 199 taxa, Pasture was 193 taxa, Medicinal was 178 taxa, Ornamental was 82 taxa, Timber was 25 taxa, Fiber was 18 taxa, Stain was 9 taxa. Useful plants will be important materials for plant design in recreational and healing forests.

• Korean Journal of Plant Taxonomy
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• v.45 no.1
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• pp.45-71
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• 2015

This study was carried out to investigate the flora of Mt Hanseok (Inje-gun, Gangwon-do) from March, 2013 to August, 2014. Vascular plants were summarized, numbering 603 taxa including 101 families, 337 genera, 520 species, 5 subspecies, 69 varieties and 9 forms. Among the 603 investigated taxa, 14 Korean endemic, 17 rare plants and 99 plants specially designated by the Ministry of Environment were also included. Naturalized plants amounted to 37 taxa. The percentage of naturalized plants species and the urbanization index were estimated to be 6.1% and 11.5%, respectively. Useful plants of the 603 taxa listed consist of 223 taxa (36.9%) which are edible plants, 217 taxa (35.9%) which are pasture plants, 165 taxa (27.3%) as medicinal plants, 67 taxa (11.1%) as ornamental plants, 22 taxa (3.6%) which are timber plants and 9 taxa (1.4%) of miscellaneous plants.

• Journal of Wetlands Research
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• v.23 no.3
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• pp.201-212
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• 2021

In wetland protection areas, a phytosociological research was conducted on willow forests, which plays an important ecological and environmental role and is the main material for ecological restoration. A total of 61 relevés were collected according to the Z-M(Zürich-Montpellier) school's method and the characteristics of plant communities and the composition of the species were identified. A total of 9 plant communities including 237 taxa were differentiated. Willow species showing the high r-NCD(relative net contribution degree) value in study areas were Salix koriyanagi, Salix chaenomeloides, Salix triandra subsp. nipponica, Salix gracilistyla and Salix pierotii. Poaceae was the most diverse in species, followed by Asteraceae, Apiaceae, Polygonaceae and Fabaceae. Life form type of willow forests in wetland protection areas was determined to be Th(therophytes)-R₅(non-clonal form)-D₄(clitochores)-e(erect form) type. The naturalized plants and invasive alien species were identified as 24 taxa and 4 taxa, respectively. Naturalized and disturbance indices were 10.1% and 41.4%, respectively. The results of the site-species ordination by Non-Metric Multidimensional Scaling(NMDS), wetland types and altitude gradient were the main ecological factors determining the spatial distribution of plant communities. Diversity index and evenness index were high in mountainous palustrine wetlands with relatively high altitude, and the disturbance index, naturalized index and appearance rate of annual plant were high in riverine and lacustrine wetlands with low altitude.

• Journal of the Korean Institute of Landscape Architecture
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• v.32 no.5
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• pp.84-101
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• 2004

This study presents an ecological management plan for wildbird habitat conservation, an nature-friendly enhancement of bio-diversity using the riverside of the Tancheon Ecosystem Conservation Area in Seoul by analyzing environmental and ecological characteristics. As a result of analyzing actual vegetation, vegetation type was classified into 34 types. Humulus japonicus association covers an area of 441,568.6㎡(31.44％), and Artemisia princeps var. orientalis association covers an area of 89,690.1㎡(6.39％). Sandy plain as valuable wildbird habitat covers an area of 89,965.9㎡(6.4％). 125 taxa including 34 families, 93 genera, 107 species, and 18 varieties were recorded and the number of naturalized plants were 41 taxa at the survey site. Total naturalized index(NI) and urbanized index(UI) were recorded as 32.8％, and 15.5％. As a result of analyzing the herb plants association structure by surveying 8 belt-transects, the humid native plants was dominant in the partially adjacent revetment edge and damp riverside. On the other hand, naturalized plants was so extensively dominant that it was necessary to establish an ecological management plan. The observed wildbirds belonged to 50 species, 6,118 individuals, and 7 restricted species by law, which were Accipiter gentilis, Falco tinnunculus, Buteo hemilasius, and Buteo buteo. Oriolus chinensis,Hirundo rustica, and Alcedo atthis. The ecological administration plan for Tancheon Ecosystem Conservation Area as follows: in ecological land-use planning, the conservation area(695,518.5㎡) has native woody and herb vegetation and sandy plain with water as an wildbird habitat. The restoration area(653,702.7㎡) has a naturalized plants distribution are with artificial revetment. The nature-friendly Riverside Area(55,414.9㎡) was an easily approached area with damaged riverside vegetation, and a safe area to wildbird habitat. In riverside restoration planning, the artificial riverside should be restored to its natural riverside vegetation, and the artificial embankment should be restored with edge shrubs for wildbird habitat or revegetated for natural riverside landscape. For naturalized plants management planning, we selected naturalized plant species to be weeded out, and suggested an application method for ecological management.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.16 no.2
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• pp.75-92
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• 2013

The vascular plants of Thuja orientalis community in Seokmun-bong, Danyang were listed 222 taxa (4.5% of all 4,881 taxa of vascular plants); 67 families, 150 genera, 163 species, 2 subspecies, 43 varieties and 14 forms. Limestone plants, 29 taxa; Asplenium rutamuraria, Celtis koraiensis, Goodyera coreana, etc. So, Based on the legal protection species, endangered wild plants II, were recorded; Thalictrum coreanum (EN) and rare plants, 8 taxa; Thuja orientalis (LC), Exochorda serratifolia var. serratifolia (LC), Diarthron linifolium (EN), Bupleurum falcatum (VU), Lithospermum erythrorhizon (LC), Dracocephalum argunense (EN), Polygonatum robustum (EN), etc. and endemic plants, 3 taxa; Populus tomentiglandulosa (Planted plant), Thalictrum actaefolium var. brevistylum, Asperula lasiantha, etc. Based on the list of specific plants, 29 taxa; Thalictrum coreanum in class V, 7 taxa (Neillia uyekii for. uyekii, Prunus sibirica, Abelia coreana, etc.) in class IV, 8 taxa (Spiraea trichocarpa, Polygala tatarinowi, Asparagus oligoclonos, etc.) in class III, 2 taxa (Potentilla dickinsii var. dickinsii, Weigela florida) in class II, 11 taxa (Morus cathayana, Buxus microphylla var. koreana, Zizyphus jujuba var. jujuba, etc.) in class I. Based on the list of naturalized plants, 10 taxa (Robinia pseudoacacia, Oenothera biennis, Festuca arundinacea, etc.), naturalization rate (NR) was 4.5% of all 222 taxa of vascular plants and urbanization index (UI) was 3.1% of all 321 taxa of naturalized plants.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.15 no.2
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• pp.57-75
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• 2012

This study was carried out to investigate the flora of estuary regions, Namdaecheon, Jusucheon, and Maeupcheon, placed in the east coast of Gangwon-do. The vascular plants were summarized as 441taxa, including 90 families, 277 genera, 388 species, 2 subspecies, 35 varieties, and 6 forms. Number of species in each investigated region was 271taxa of Namdaecheon, 247taxa of Jusucheon, and 285taxa of Maeupcheon, respectively. Among the investigated 441taxa, 7 Korean endemic, 5 rare plants and 37 specially designated plants by Ministry of Environment were also included. Aquatic and hydrophyte plants were collected 41taxa, and the thinophyte and halophyte plants were investigated 22taxa. The naturalized plants were 59taxa, and the percent of naturalized plant species was estimated as 13.3%. Based on the floristic composition, Maeupcheon was estimated as well conserved estuary region among the investigated 3 rivers.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.24 no.1
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• pp.81-96
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• 2021

The purpose of this study was conducted in order to provide the necessary basic data, to establish management solutions and to improve biodiversity by calculating similarity index, urbanization index (UI), and disturbed index (DI) to understand current status of naturalized and invasive alien plants in Eulsukdo, Maekdo and Samnak ecological parks in Busan, South Korea. The numbers of naturalized plants identified in these parks were 76 taxa; 20 families, 53 genera, and 76 species. As a result of the similarity index analysis, the most similarity level (83.0%) was obtained at Eulsukdo and Maekdo parks. The numbers of invasive plants identified in the two parks were 11 taxa; Rumex acetosella L., Sicyos angulatus L., Solanum carolinense L., Ambrosia artemisiifolia L., Ambrosia trifida L., Hypochaeris radicata L., Lactuca serriola L., Solidago altissima L., Symphyotrichum pilosum (Willd.) G.L.Nesom, Paspalum distichum L., and Humulus scandens (Lour.) Merr. Overall, UI and DI were 28.6% and 66.7%, respectively, indicating that the ecosystem disruption was serious.