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http://dx.doi.org/10.5322/JESI.2020.29.6.579

Floristic Study of Tamjin River Estuary in Gangjin-gun, Korea  

Jang, Hyun-Do (Plant Resources Division, National Institute of Biological Resources)
Leem, Hyosun (Division of Ecological Survey Research, National Institute of Ecology)
Han, Seahee (National Agrobiodiversity Center, National Academy of Agricultural Science, RDA)
Oh, Ami (Department of Biology, Chungbuk National University)
Oh, Byoung-Un (Department of Biology, Chungbuk National University)
Yang, Sungyu (Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine)
Publication Information
Journal of Environmental Science International / v.29, no.6, 2020 , pp. 579-603 More about this Journal
Abstract
In order to provide fundamental information about the floristic composition of the area along with an assessment of the environmental impact, a floristic study of the vascular plants in the Tamjin River estuary in Gangjin-gun was conducted for a total of nine days, in the period from June 2014 to September 2014. We found that the vascular plants in this region comprised 424 taxa belong to 102 families, 281 genera, 390 species, 5 subspecies, 26 varieties, and 3 forma. Five taxa of Korean endemic plants including Weigela subsessilis (Nakai) L.H.Bailey, Lespedeza maximowiczii var. tricolor (Nakai) Nakai, and Clematis trichotoma Nakai were collected. Two least concern (LC) taxa of rare plants (as designated by the Korea Forest Service) were collected: Hydrocharis dubia (Blume) Backer and Platycladus orientalis (L.) Franco. Ten the floristic regional indicator taxa from the third to the fifth grade were identified: two taxa belonged to grade IV, and eight taxa belonged to grade III. Twenty-four taxa of salt-tolerant plants, including Artemisia fukudo Makino, Carex rugulosa Kuk., and Suaeda glauca (Bunge) Bunge, as well as 44 taxa of aquatic plants, including Najas marina L., Nuphar oguraensis Miki, and Nymphoides indica (L.) Kuntze, were investigated in this region. Fifty-nine taxa of naturalized plants were recorded, among which the following six taxa were plants that caused ecosystem disturbance: Ambrosia artemisiifolia L., Humulus scandens (Lour.) Merr., Lactuca scariola L., Rumex acetosella L., Solidago altissima L., and Symphyotrichum pilosum (Willd.) G.L.Nesom.
Keywords
Tamjin River estuary; Flora; Vascular plants; Aquatic plants; Salt-tolerant plants;
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