• The Korean Journal of Ecology
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• v.21 no.5_2
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• pp.541-547
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• 1998

The flora and vegetation of the alpine grassland at Dalmoon on Mt. Paektu were investigated on July 24, 1997 by 1 m ${\times}$ 1 m quadrat method. The flora of the vascular plants investigated on this alpine grassland was 36 taxa belonging to 17 families, 35 genera, 29 species, 3 subspecies, 4 varieties. Te leading families were Compositae (7 taxa) and Gramineae (4 species), and the forb was more than the grass. Four dwarf shrubs which were Salix metaformosa, Dryas octopetala var. asiatica, Rhododendron aureum and Vaccinium vitis-idaea were found at the studied sites. This alpine grassland was composed of 17 communities, Astragalus uliginosus, Sanguisorba sitchensis, Deschampsia caespitosa were dominated over 18, 5 and 4 quadrats, respectively.

• Korean Journal of Plant Resources
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• v.19 no.4
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• pp.447-458
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• 2006

The resource plants at the Manduksan and Mireukbong was listed 550 taxa: 107 families, 339 genera, 481 species, 1 subspecies, 65 varieties and 3 forms. Among 550 taxa listed was confirmed 323 taxa of edible plants (58.7%), 384 taxa of medicinal plants (69.8%), 267 taxa of ornamental plants (48.5%) and 268 taxa of the others (48.7%). Based on the list of the rare plants by the Forest Research Institute, 4 taxa were recorded in the studied areas; Lilium distichum (Preservation priority order: No. 159), Tricyrtis dilatata (No. 97), Aristolochia contorta (No. 151), Prunus yedoensis (No. 110) and based on the list of Korean endemic plants, 11 taxa were recorded; Cephalotaxus koreana, Carex okamotoi, Lilium amabile, Populus tomentiglandulosa, Salix purpurea var. japonica, Pseudostellaria multiflora, Prunus yedoensis, Forsythia koreana, Paulownia coreana, Weigela subsessilis, Aster koraiensis. Specific plant species by floral region were total 30 taxa; Prunus yedoensis in class V, Wistaria floribunda in class IV, 3 taxa (Spiraea salicifolia, Acer palmatum, Asperula lasiantha) in class III, 3 taxa (Potentilla dickinsii, Viola tokubuchiana var. takedana, Caryopteris incana) in class II, 22 taxa (Pinus koraiensis, Hosta capitata, Chloranthus japonicus, Salix glandulosa, Juglans mandshurica, etc.) in class I. This site needs urgent countermeasures, because there have increased many man-made damages like planting exotic plants, picking wild plants and soil compaction induced by human trampling.

• 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 Society of Environmental Restoration Technology
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• v.19 no.3
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• pp.71-91
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• 2016

The purpose of this study is to offer the raw data for conservation of natural resources by surveying the flora distributed in Juwangsan National Park. The numbers of flora were summarized as 575 taxa; 99 families, 333 genera, 507 species, 4 subspecies, 56 varieties and 8 forms. The threatened species was Eleutherococcus senticosus, and the rare plants were 17 taxa; Anaphalis sinica, Jeffersonia dubia, Hylotelephium ussuriense, Berchemia berchemiaefolia and so forth. The Korean endemic plants were 13 taxa; Salix pseudolasiogyne, Carpinus laxiflora, Pseudostellaria coreana, Thalictrum actaefolium var. brevistylum, Corydalis albipetala and so forth. The specific plants by floristic region were 69 taxa; 31 taxa of grade I, 16 taxa of grade II, 8 taxa of grade III, 7 taxa of grade IV and 7 taxa of grade V. The naturalized plants were 27 taxa; Fallopia dumetorum, Rumex crispus, Chenopoidum album, Amaranthus patulus, Lepidium apetalum and so forth, and the invasive alien plants were Ambrosia artemisiifolia and Aster pilosus. The target plants adaptable to climate change were 18 taxa; Anemone reflexa, Eranthis stellata, Hylomecon vernalis, Lathyrus vaniotii and so forth. The plants with approval for delivering oversea were 31 taxa; Dianthus longicalyx, Thalictrum ichangense, Spiraea blumei, Glycine soja and so forth.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.26 no.2
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• pp.25-46
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• 2023

The purpose of this study was to present the ecologically important data for conservation and management of river ecosystem. Namcheon Stream, the study site, is a local river flowing from the east to the west of Gyeongju. The results are as follows. The numbers of vascular plants were summarized as 518 taxa including 98 families, 321 genera, 467 species, 9 subspecies, 32 varieties, 4 forms, 4 hybrids and 2 cultivars. The rare plants were 4 taxa including Aristolochia contorta, Koelreuteria paniculata, Hydrocharis dubia and Sparganium stoloniferum. The Korean endemic plants were Populus × tomentiglandulosa, Salix koriyanagi, Lespedeza maritima, Weigela subsessilis and Hemerocallis hakuunensis. The floristic target species were 27 taxa including 2 taxa of grade IV, 4 taxa of grade III, 7 taxa of grade II and 14 taxa of grade I. The invasive alien plants were 92 taxa including Pterocarya stenoptera, Conyza canadensis, Vulpia myuros and so on. The ecosystem disturbing species were 6 taxa including Rumex acetosella, Sicyos angulatus, Solanum carolinense, Ambrosia artemisiifolia, Lactuca seriola and Symphyotrichum pilosum.

• Korean Journal of Plant Resources
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• v.21 no.2
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• pp.117-127
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• 2008

The vascular plants in the Eco-Arboretum site, Mt. Gumwon appeared to be 369 taxa; 84 families, 217 genera, 319 species, 43 varieties and 7 forms. Based on the list of the rare plants, 2 taxa existed in the studied areas; Abies koreana (Preservation priority order; No. 73), Paeonia obovata (No. 97) and based on the list of Korean endemic plants, 12 families, 14 genera, 11 species, 3 varieties, 1 hybrid, 15 taxa existed; Cephalotaxus koreana, Abies koreana (Planted species), Carex okamotoi, Salix hallaisanensis, Salix purpurea var. japonica, Clematis trichotoma, Thalictrum actaefolium, Lespedeza ${\times}$ tomentella, Vicia nipponica, Stewartia koreana, Hypericum attenuatum var. confertissimum, Paulownia coreana (Planted species), Weigela subsessilis, Aster koraiensis (Planted species). Specific plant species by floral region were total 38 taxa; Paeonia obovata in class V , 13 taxa (Lilium leichtlinii var. tigrinum, Betula costata, Betula davurica, Ulmus davidiana, Spiraea frutschiana, Prunus maackii, Syringa reticulata var. mandshurica, Cynanchum inamoenum, Lonicera subhispida, Cacalia firma, etc.) in class III , 5 taxa (Heloniopsis orientalis, Chrysosplenium pilosum, Acer triflorm, Viola tokubuchiana var. takedana, Teucrium veronicoides, etc.) in Class II . 19 taxa (Dryopteris erythrosora, Arisaema ringens, Veratrum versicolor, Polygonatum inflatum, Salix glandulosa, Betula schmidtii, Alnus hirsuta, Quercus variabilis, Aconitum japuense, Dicentra spectabilis, Chrysosplenium flagelliferum, Impatiens noli-tangere, Ilex macropoda, Tilia amurensis, Fraxinus mandshurica, Trigonotis icumae, etc.)in class I . The naturalized plants in this site were 5 families, 13 genera, 15 taxa (Rumex acetocella, Rumex obtusifolius, Trifolium repens, Oenothera odorata, Erigeron annuus, Erigeron philadelphicus, Bidens frondosa, Taraxacum officinale, etc.) and naturalization rate was 4.1% of all 369 taxa vascular plants.

• Journal of Korean Society of Forest Science
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• v.55 no.1
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• pp.30-36
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• 1982

Wood biomass production at 1-year, 2-year, and 3-year rotations on both low and upper hills at 2m 2m spacing (25,000 trees/ha) was studied for a six-year period with following 12 species; Lespedeza cyrtobotrya Amorpha fruticosa. Robinia pseudoacacia, Acer saccharinum, Platanus orientalis Populus alba ${\times}$ P. glandulosa $F_1$, Salix alba, Pinus rigida, Alnus hirsuta var. sibirica, A. inokumai A. gultinosa, and A. incana. In One-year rotation, Lespedeza cyrtobotrya produced largest amoung of biomass (2.6 t/ha/year, fresh weight) and Populus alba ${\times}$ P. glandulosa $F_1$ the second largest (2.2 t/ha/year) on low hill. In two-year rotation, the latter produced the largest amount (4.8 t/ha/year) and Alnus hirsuta var. sibirica second largest (2.8 t/ha/year) on low hill. In three-year rotation, the largest weight (11.2 t/ha/year) was produced by Robinia pseudoacacia and the second largest (6.2 t/ha/year) by Alnus hirsuta var. sibirica on low hill Amorpha fruticosa, Acer saccharinum, Platanus orientalis and Salix alba were not suitable for biomass or fuelwood productio due to poor growth. Biomass yield on upper hill was reduced considerably for all tewlve species, with less than 4 t/year at maximum Only nitrogen fixing species (Robinia and Alnus species) are recommended on upper hill for biomass production wood sprouting ability of species was generally associated with good biomass production. Calori values of ovendry wood ranged from 4,485 cal/g for Salix alba to 5,125 cal/g for Alnus glutinosa. For maximum biomass production a three-year ratation with coppice is preferred to one-year and two-year roataions The best species appeared to be Robinia pseudoacacia and Alnus hirsuta var sibirica.

• Journal of Environmental Impact Assessment
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• v.23 no.2
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• pp.119-136
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• 2014

This work aims to select the potentially vulnerable plant species against climate change at alpine and subalpine belts of Mts. Sorak, Jiri, and Halla, from central, southern, southern insular high mountains of the Korean Peninsula, respectively. The selection of global warming related vulnerable plants were performed by adapting various criteria, such as flora, endemicity, rarity, floristically specific and valuable species, species composition at mountain summits, horizontal and vertical ranges of individual species, and their distributional pattern in the Korean Peninsula. Line and quadrat field surveys along the major trails from all directions at height above 1,500 meters above sea level of Mts, Sorak, Jiri and Halla were conducted each year during spring, summer, and autumn from 2010 to 2011. Based upon above mentioned eight criteria, high level of climate change related potentially vulnerable arboral plants, such as Rhododendron aureum, Taxus caespitosa, Pinus pumila, Oplopanax elatus, Vaccinium uliginosum, and Thuja koraiensis are noticed from at subalpine belt of Mt. Sorak. Species of Abies koreana, Rhododendron tschonoskii, Oplopanax elatus, Taxus cuspidata, Picea jezoensis, and Juniperus chinensis var. sargentii belong to climate change concerned vulnerable species at subalpine belt of Mt. Jiri. High level of climate change related species vulnerability is found at alpine and subalpine belts of Mt. Halla from Diapensia lapponica var. obovata, Salix blinii, Empetrum nigrum var. japonicum, Vaccinium uliginosum, Juniperus chinensis var. sargentii, Taxus cuspidata, Rhamnus taquetii, Abies koreana, Hugeria japonica, Prunus buergeriana, and Berberis amurensis var. quelpartensis. Countermeasures to save the global warming vulnerable plants in situ are required.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.16 no.3
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• pp.83-95
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• 2013

To understand natural regeneration and stand development after fire in mixed broadleaved-coniferous forests of Sikhote-Alin Mountains, ten sample plots of $50m{\times}50m$ size were established in 1975 and 1983 at the stands burned by wildfires in 1973 and 1982, respectively. And, the number of naturally regenerated seedlings were monitored in two $50m{\times}4m$ subplots in each plot. The most fire-sensitive conifer species is Abies nephrolepis, while Betula costata is the most fire-sensitive broadleaved tree species. The most fire-resistant species were Q. mongolica, T. taquetii and A. mono. The results of 20 and 30 years after the fire showed that pioneer tree species, e.g. Populus, Salix, and Betula, were regenerated immediately at the early stage of stand development and grew where there is a mono canopy layer with high density. On the other hand, the densities of successors, e.g. Pinus koraiensis, Picea jezoensis, Abies nephrolepis, Acer mono and Tilia taquetii, which were present in the study plots before the fire, increased gradually. Naturally regenerated tree species after forest fire by the growth rate were divided into three groups according to their annual height growth. The seral tree species (Betula costata, Betula platyphylla, Padus maackii, Populus tremula and Sarix caprea) belong to the first group and have the highest growth rate (from 40 to 96 cm per year). The late successional broad-leaved trees (Tilia taquetii, Acer mono and Quercus mongolica) belong to the second group and have intermediate annual height growth (from 3.7 to 13.5 cm per year). The late successional coniferous species (Picea jezoensis, Pinus koraiensis and Abies nephrolepis) form the third group and have the least annual height growth (from 1.4 to 3.5 cm per year).

• Journal of the Korean Society of Environmental Restoration Technology
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• v.7 no.6
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• pp.84-93
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• 2004

This study was carried out to select proper species for early stage replantation in granite forest roads cut-slope. From two to sixteen year elapsed forest roads in four regional areas of Gangwon-do, sample plots were selected, and their vegetations and environmental factors were investigated. Soil organic matter, total nitrogen, soil moisture content, and bulk density in the decomposed granite soils were below 1.32%, 0.08%, 10.0%, and above 1.24g/$cm^3$, respectively. The result indicated that the soil was not good for plant growth. The environmental factors affecting distribution of species in the granite forest roads were the elapsed year, cut-slope, elevation, and cut-slope aspect. Species with high frequency in the granite forest road cut-slope ordered Lespedeza bicolor, Rubus crataegifolius, Pinus densiflora, Lysimachia clethroides, Amorpha fruticosa, Dactylis glomerata, Lespedeza cyrtobotrya, Festuca arundinacea, Spodiopogon sibiricus, Artemisia stolonifera, and Weigela subsessilis. Herbs seeded in earth stage such as Dactylis glomerata, Lolium perenne, and Festuca arundinacea had changed into perennial herbs such as Carex lanceolata, Poa sphondylodes, Patrinia villosa, Artemisia princeps var. orientalis, Spodiopogon sibiricus, Melica onoei, Artemisia keiskeana, Artemisia stolonifera, Astilbe chinensis var. davidii, Spodiopogon sibiricus, and those had changed into shrubs such as Rubus crataegifolius and Weigela subsessilis, and those had changed into trees such as Salix hulteni, Salix koreensis, and Fraxinus rhyncholhylla according to elapsed year of forest roads. Legumes such as Lespedeza sp., Pueraria thunbergiana, Amorpha fruticosa, etc., herbs such as Artemisia keiskeana, Artemisia princeps var. orientalis, Artemisia stolonifera, Astilbe chinensis var. davidii, Spodiopogon sibiricus, Miscanthus sinensis, etc., and woody plants such as Pinus densiflora, Rubus crataegifolius, Weigela subsessilis, Zanthoxylum schinifolium, Rhododendron mucronulatum, etc., with foreign herbs were considered as proper species for replantation in granite forest road cut-slope.