• Korean Journal of Environment and Ecology
• /
• v.37 no.5
• /
• pp.318-326
• /
• 2023

The floristic target species (FTS) has been widely used as a important tool for environmental assessment in Korea. Here the floristic district is a key criterion for the selection and evaluation of FTS. The aim of this study is to clarify the intellectual meaning of the floristic district i.e. a sort of phytogeographical subunit. We reviewed 7 main literatures related to the floristic district. Nakai's 1919 Ulleungdo flora survey report was first to mention a region and/or province in terms of general geographical divisions. In 1977, the floristic district map of the Korea vascular plants was first described by Oh. In 1978, Lee & Yim proposed a new floristic district map dividing the central and southern regions, and the district boundaries have been adjusted by many other researchers. In the end, the floristic district map modified slightly from Lee & Yim's map was nationally recognized in 2018. However, the boundaries of floristic districts were inconsistent, both in their setting and adjustment, as well as the indicator species of the district. No basis for this inconsistency could be confirmed. We concluded that all district maps depend on arbitrary lines drawn a priori, and finally proposed the following two ecological strategies to ensure the effectiveness and practicality of the FTS as a scientific means for environmental impact assessment and national flora evaluation: (i) designing to achieve the flora list and the floristic district based on nativeness of plant distribution, (ii) constructing a habitat-based floral monitoring system.

• Journal of Ecology and Environment
• /
• v.31 no.4
• /
• pp.297-307
• /
• 2008

In order to assess the effect of grazing on grasslands using floristic composition, we studied the floristic composition and plant biomass of steppe vegetation in Hulunbeier, Inner Mongolia. The dominant species of the grasslands were Stipa krylovii, Stipa grandis and Leymus chinensis. Floristic composition changed according to grazing pressure, being light, heavy and moderate. Under heavy grazing conditions, the importance value of P. acaulis, C. korshinskyi and Cleistogenes squarrosa increased in the plant community. These species were indicators of heavily grazed stand. Plant biomass of the stands ranged within 11.6g $m^{-2}$ and 63.5g $m^{-2}$ and 69.5g $m^{-2}$ and 166.2g $m^{-2}$ to the west and east of Lake Hulun, respectively. These values are equivalent to ca. $450{\sim}1,000kg$ of atmospheric carbon per hector, which is retained within the stand during the summer season.

• The Korean Journal of Ecology
• /
• v.18 no.2
• /
• pp.275-283
• /
• 1995

Seral changes in floristic composition during abandoned field succession after shifting cultivation was investigated in eastern Kangwon-Do, Korea. According to the DCA ordination based on the floristic composition, sere of the dominant species was shown as follows: Digitaria sanguinalis, Persicaria spp., Commelina communis etc. in the annual stage (0∼1 years); Erigeron spp., Artemisia spp., Rubus crataegus etc. in the Erigeron-Artemisia stage (2∼6 years); Pinus densiflora, Salix spp., Miscanthus sinensis, Arundinella hirta etc. in the shrub - earlier tree stage (10∼25 years); P. densiflora, Quercus mongolica, Spodiopogon sibiricus etc. in the mid-tree stage (25∼50 years); Q. mongolica, Tripterigium regelii, Lespedeza maximowiczii, Carex siderosticta etc. in the latter tree stage (50∼80 years). In mid-tree stage, size-frequency distribution of P. densiflora was plotted as a platycurtic curve and that of Q. mongolica as a reverse J-shaped curve, which meant P. densiflora was thinned through interspecific competition and Q. mongolica was regenerated by itself in the later tree stage.

• Korean Journal of Environmental Biology
• /
• v.32 no.3
• /
• pp.176-210
• /
• 2014

This scientific study was carried out to investigate the flora of Jecheon, located in the middle part of the Korean peninsula. We have surveyed the vascular plants of the above region from March to October 2014 (18 times). Totally, we identified 765 taxa; 127 families, 411 genera, 678 species, 9 subspecies, 70 varieties, 6 forms, and 2 hybrids. Endangered species designated by the law called' Protection Law for Endangered wild fauna and flora' were 6 taxa. The red data of vascular plants according to IUCN valuation basis comprised 29 taxa; 21 families, 26 genera, 29 species. 25 taxa were considered to be endemic to Korea. The floristic regional indicator plants found in this region were 122 taxa in total. Among them 12 taxa revealed the floristic degree V, 13 for floristic degree IV, 34 for floristic degree III, 11 for floristic degree II and 52 for floristic degree I. The naturalized plants were identified as 58 taxa. Further, we anticipate that the findings of this study survey would be useful for the scientific community to gain capacity to identify and conserve vascular plants of the region.

• Korean Journal of Environment and Ecology
• /
• v.36 no.3
• /
• pp.277-302
• /
• 2022

This study aims to establish the floristic data and identify the useful plant resources of Mt. Ilimsan and its adjacent areas. The survey was conducted 27 times from March 31, 2020 to August 22, 2021. It identified 500 taxa consisting of 101 families, 304 genera, 444 species, 11 subspecies, 42 varieties, and 3 formas. A total of 853 plant specimens were collected. There were 16 taxa designated as endemic plants and 7 taxa designated as the rare plants by the Korea Forest Service, and 5 taxa designated as the red list plants by the Ministry of Environment. Moreover, the floristic target species by the Ministry of the Environment found in this mountain were 69 taxa, including 49 taxa for floristic degree I, 7 for floristic degree II, 11 for floristic degree III, and 2 for floristic degree IV. Biological resources subject to export approval by the Ministry of Environment were 159 taxa. The alien plants were 49 taxa, of which 5.6 percent were naturalized, and the urbanization index was 7.9 percent. Ecosystem-disturbing invasive alien plants designated by the Ministry of Environment were 6 taxa.

• Journal of Ecology and Environment
• /
• v.38 no.4
• /
• pp.563-598
• /
• 2015

A floristic study on the diatom was carried out in coastal area at two seasons, August 2014 and April 2015, from three islands in the northern area of Yellow Sea of South Korea. A total of 117 species of diatoms, including 3 classes, 9 subclasses, 20 orders, 32 families and 54 genera, were identified based on LM and SEM examinations. Three species of diatoms, Gyrosigma obscurum, Pleurosigma frenguellianum, and P. sabangi were newly recorded in Korea. The historical synonyms of the species are presented for the floristic informations, the examined specimen for the each taxon is specified, and the distribution in three islands and detailed sampling localities of each taxon are given.

• Journal of Plant Biology
• /
• v.18 no.3
• /
• pp.87-91
• /
• 1975

Dry matter production of herb community in the Central Korea was studied. Generally, the maximum standing crop in the Central Korea can be observed during the period from July through September with somewhat differences between the herb communities of different floristic composition. Differences in standing crop between the communities of similar floristic composition in different regiions were insignificant while those between different floristitc community were relatively great, ranging from 308.7 d.w.g/$m^2$ in Phragmites prosturatus community. It seems that regional difference in standing crop of herb community of the same floristic composition in the Central Korea is greatly influenced by grazing effect rather than any other conditions. The maximum leaf area index (LAI) of different herb communities was observed during the period from July through September, ranging from 3.0 in Plantago asiatica community to 16.0 in Phragnites longivalvis community.

• The Korean Journal of Ecology
• /
• v.20 no.1
• /
• pp.15-25
• /
• 1997

The deciduous shrubs, Lindera sericea belonging to family Lauracea are distributed in Mt. Chogye and Mudeung locally. To estimate the community structure of this shrub, the relationship between the floristic composition and environmental factors of 20 sites in Mt. Chogye were investigated. L. sericea community distributed at the hum양 zone of altitude 305-480 m in ES and NE slope of $15~30^{\circ}$. The floristic composition of this communities consisted of 17-32 species varied with sites. Sasa borealis, Sapium japonicum, and Quercus serrata were the constant species over 90%. The forest vegetation was classified as Sasa borealis-Lindera sericea community, and the Sasa borealis-Meliosma oldhamii, and Sasa borealis-Callicarpa japonica were as subunit community. Acidity, organic matter content, inorganic phophate, potassium, calcium, magnesium, cation exchange capacity and conductivity were determined as environmental factors. Diameter of stem at ground surface and stem, distribution area and growth property of this plant were investigated, and this plant was presumed to be a relic endemic species.

• Korean Journal of Plant Resources
• /
• v.23 no.3
• /
• pp.256-260
• /
• 2010

We performed the floristic study of Carpathian mountains in Ukraine from April 2008 till October 2009. We designated eight important areas to investigate in Ukraine Carpathians including Svydovets, Chornohora, Kuziy-Trybushany, Maramorosh, Uholka-Shyrokyi Luh, Narcissi Valley, Chorna Hora, and Yulivska Hora. The total numbers of vascular plants in investigated area were 1,349 speices from 502 genera and 112 families. The endemic species to Carpathians numbered to 65 from 49 genera belonging to 24 families, and it was corresponded to 4.8% of the 1,349 vascular species. We prepared the list of vascular plants with compiling database on useful plants. Ukraine Carpathians endemic species could be applied as high value products in research and practice. Moreover, the flora of Carpathian mountains which is distributed in five nations in eastern Europe and famous for Primeval Beech Forests (Fagus sylvatica), is useful to compare the floristic study with Korean flora.

• Plant Resources
• /
• v.4 no.1
• /
• pp.59-64
• /
• 2001

This study was conducted to clarify the floristic composition and to investigate the landscape structure of habitats of Aconitum pseudo-leave var. erectum. A. pseudo-leave is designated an endemic plant in Korea. Floristic compositions of habitats were mainly composed of Quercus mongolica community. Other elements in this composition were Weigela subsessilis, Corylus sieboldiana and Cornus contioversa. Landscape ecological structure of habitats were defined by soils of mesic, loamy skeletal, slope of more than 60$^{\circ}$, sixty percent of woody coverage at 460-520m above the sea level and 25m away from drainage. Distribution patterns of A. pseudo-leave var. erectum plants in Taejon were presented on the 1km X 1km grid map.