• Title/Summary/Keyword: dominant genera

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The Mycoflora of Higher Fungi in Mt. Packdu

  • Cho, Duck-Hyun
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2002.11a
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    • pp.11-28
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    • 2002
  • Some 420 species of higher fungi were collected from the Mt. Paekdu, Songwha river and their adjacent areas from 28th July 12th of August, 1991 and identified to 2 subdivisions, 4 classes, 2 subclasses, 12 orders, 51 families, 141 genera and 336 species. The dominant species were Clitocybe gibba, C. clavipes, Cystoderma amianthnum, Hygrocybe flavescens, H. miniata, Russula cyanoxantha, R. emetica, Lactarius lignyotus, L. torminosus and Phellinus igniarus.

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Isolation and Identification of Detergents Degrading Bacteria in the Han River Downstream (서울시역 한강수계에서의 합성세제 분해세균의 분리 및 동정)

  • 배경숙;하영칠;홍순우
    • Korean Journal of Microbiology
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    • v.20 no.2
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    • pp.98-104
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    • 1982
  • Detergent-degrading bacteria isolated from the Han River downstream running through the center of Seoul area were identified. Samples were monthly taken from the surface waters at four designated sites from October, 1980 to August, 1981. Isolated strains were characteristically Gram-negative bacteria in all, and they were classified within 18 genera, 43 spceies. The dominant strains of detergent -degrading bacteria were within geneus Pseudomonas. On the regional distribution of detergent-degrading bacteria, Euterobacteriaceae and genus Aeromonas were suddenly increased at the Third Bridge of site 2 and the First Bridge of site 3, and others were almost the same regardless of sites.

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Evergreen Broad-leaved Trees in Mt. Paektu and North Korea (백두산과 북한의 상록활엽수)

  • 김종홍;윤경원
    • The Korean Journal of Ecology
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    • v.21 no.5_2
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    • pp.531-539
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    • 1998
  • This study was carried in Mt. Paektu on the border between North Korea and China. The dominant communities of evergreen broad-leaved trees were Rhododendron aureum community, Dryas octopetala var. asiatica community, Rhododendron redowskianum community and Phyllodoce coerulea community. The evergreen broad-leaved trees investigated consist of a total 34 taxa : 4 forms, 16 varieties, 14 species, 10 genera, 5 families in Mt Paektu and North Korea(in literature). The soil organic matter and available phosphorus were different according to plant community and altitude.

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Seasonal Fluctuation of Phytoplankton in Inchon Dock-Autumn, 1976 (인천항 선거내 식물성 플랑크톤의 추계동태에 대하여)

  • 정영호
    • Journal of Plant Biology
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    • v.20 no.3
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    • pp.135-140
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    • 1977
  • A series of observations of phytoplankton were made at seven station with two control stations in Inchon Dock to clarify the quantity, quality and standing crop of phytoplankton from Oct. to Nov., 1976. Thirty seven species of phytoplankton, representing 18 genera, 36 species, 1 forma were taken in this research. Chaetoceros decipiens, Rhizosolenia delicatula, Hemiaulus sinensis, Chaetoceros affinis and Skeletonema costatum were the dominant species in this area during two moths. By the ecological division, the neritic species occupied 86.5% of total phytoplankton composition. Standing crop of phytoplankton represented much variation: ranging from 263 to 1, 614, 832 cells/l. The maximum happened at station 1 on November.

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The Flora of Geonjisan, Jeonju (건지산(전주)의 식물상)

  • 김계환;박준모;임성구;황영희;조성종;김상용
    • Journal of Korea Foresty Energy
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    • v.20 no.1
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    • pp.12-27
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    • 2001
  • This study was carried out to investigate the vascular flora at Geonjisan, Jeonju, Jeollabuk-do and the findings are followings (1) The vascular plants identified and surveyed were 359 taxa(306 species, 49 varieties and 4 forms of 245 genera of 94 families) at the study sites. (2) There were 144 taxa (125 species, 15 varieties and 4 forms of 91 genera of 49 families) for the woody plants, while 215 taxa(181 species and 34 varieties of 157 genera of 54 families) were identified for the herbaceous plants. Twenty-nine taxa (28 species and 1 variety of 22 genera of 12 families) were investigated for the naturalized plants at the study sites. (3) Currently existing dominant vegetation forming the major trees layer at the study sites were Robinia pseudoacacia, Chamaecyparis pisifera, C. obutusa, Torreya nucifera, Castanea crenata and Acer buergerianum for the planted species, and naturally growing species forming the major trees layer were Quercus acutissima and Q- serrata.

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Characterization of Culturable Bacteria in the Atmospheric Environment in Incheon, Korea (인천지역 대기 환경 중 배양성 세균의 특성)

  • Lee, Siwon;Park, Su Jeong;Kim, Ji Hye;Min, Byung-Dae;Chung, Hyen-Mi;Park, Sangjung
    • Journal of Environmental Health Sciences
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    • v.42 no.2
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    • pp.126-132
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    • 2016
  • Objectives: This study aims to provide basic data regarding the bacterial total plate count in the atmospheric environment for related studies. Methods: Total plate count and the identification of culturable bacteria in the atmospheric environment in Incheon took place in 2015 using periodic survey. Correlationship analysis was performed between the number of culturable bacteria and environmental elements. In addition, an estimation of novel bacterial species was undertaken using the similarities and phylogenetic tree based on the 16S rRNA gene. Results: The total plate count of culturable bacteria was on average $176CFU/m^3$, and did not exceed $610CFU/m^3$ in the atmospheric environment. Periodic monthly measuring of total plate count was highest in June at $293CFU/m^3$, while the lowest was in July at $125CFU/m^3$. Furthermore, as a result of the identification of culturable bacteria, the genera Arthrobacter and Kocuria were dominant, while novel bacterial taxa that belong to the genera Chryseobacterium and Herbiconiux were separated. Conclusion: The total number of culturable bacteria from the atmospheric environment in Korea is on average $176CFU/m^3$. In addition, the genera Arthrobacter and Kocuria dominate. The presence of novel bacterial taxa are expected in the atmospheric environment, such as belonging to the genera Chryseobacterium and Herbiconiux.

The Flora of Jangsanbong (장산봉(부산)의 식물상)

  • Lee, Jung-Hoon;Moon, Sung-Gi
    • Journal of Environmental Science International
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    • v.16 no.8
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    • pp.881-889
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    • 2007
  • The flora of vascular plants in Jangsanbong located at Busan Metropolitan City was investigated from April 2003 to April 2004. Vascular plants in the surveyed area were 254 taxa that belonged to 78 families, 175 genera, 218 species, 34 varieties, and 2 forma. Among them, 20 taxa of evergreen broad trees, 31 taxa of naturalized plants were identified, and especially Rubus trifidus was first recorded in Busan. In the upper part of a circular road dominant species was Pinus thunbergii. In the lower part of a circular road and the coastal area, dominant species were Platycarya strobilacea, Clerodendron trichotomum, Euscaphis japonica, Quercus aliena, Quercus dentata, Mallotus japonicus, which distribute mainly in the subtropical and temperate zone. In the surveyed area, the canopy consistsed of tall trees, Pinus thunbergii, and the understratum were trees such as Eurya japonica, Ficus erecta, Ligustrum japonicum, Prunus sargentii, and Celtis sinensis var. japonica.

THE CYPRINID FISH FAUNA IN THE HYEONGSAN RIVER (형산강산 잉어과 어류상)

  • YANG Hong Jun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.12 no.1
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    • pp.65-70
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    • 1979
  • The fish faeona of the Hyeongsan River was found to be as follows; 1. The study of fish fauna for this paper was achieved from May to August in 1978. 2. The collected cyprinid fishes from the Hyeongsan River are 13 species in 10 genera, i. e., Cyprinus carpio, Carassius auratus, Gnathopogon coreanus, Gnathopogon majimae, Pseudorasbora parve, Pungtungia herzi, Moroco oxycephalus, Moroco lagewskii, Triboledon hakenensis, Zacco platypus, Zacco temmincki, Rhodeus ocellatus and Pseudoperilampus uyekii. 3. Among them the 5 species, Pseudorasbora parva, Moroco oxycephalus, Zacco platypus, Rhodeus ocellatue and Pseudoperilampus uyekii, are first described from this river. 4. Zacco temmincki is a dominant species in the whole river and Moroco oxycephalus at the upper, Zacco temmincki at the middle and Carassius auratus at the lower part of the river are dominant species in each studied area. 5. The number of distributed cyprinid species in this river compared to the adjacent river basins is $43.3\%$ of the whole Nakdong River and $118.2\%$ of the Taewha River.

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Analysis of Vegetation on the Pavements and under the Street Trees in Seoul (서울市 步道와 街路樹밑의 植生에 관한 分析)

  • Chang, Nam-Kee;Kim, Eun-Ae
    • The Korean Journal of Ecology
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    • v.13 no.4
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    • pp.331-342
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    • 1990
  • Analysis of vegetation on the pavements and under the trees of streets in Seoul city were investigated from July to November 1989. All of the vascular herbs were 9 orders, 13 families, 30 genera, 37 species and 1 forma. Species diversity and evenness index were higher on the pavements than under the trees of streets. Eragrostis multicaulis with C-4 pathway was a dominant species, and next orders of importace values were Eleusine indica(C-4), Digitaria sanguinalis(C-4), Taraxacum officinale(C-3) and Erigeron annus(C-3). On the pavements and under the trees of streets, light intensity and surface temperature were very high, Also, these sites were affected by many kinds of human interferences. Therefore, it was an example of adaptation to specific ecological environments that C-4 plats were more dominant than C-3, growth forms of C-3 plants were rosette or prostrate, and annual or biennial plants were distributed in these studied sites. Generally, fruits types were grains, achens and capsules. Seeds were very small and some had appendages such as pappus.

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Biodiversities and Fungal Resources of Mt.Daedun Provincial Park (대둔산 도립공원의 균류다양성과 균류자원)

  • Cho, Duck-Hyun;Kim, Jong-Moon
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2003.04a
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    • pp.119-120
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    • 2003
  • Many fungi were collected at Mt. Daedun Provincial Park between the periods from March 2001 to October 2002 and they were identified. According to the results, the fungi diversity included 2 division, 3 subdivisions, 5 classes, 4 subclasses, 12 orders, 35 families, 75 genera and 153 species. Among them Ileodictyon is unrecorded genus and Ileodictyon gracile, Mycena flosum-nivium and Tricholoma lascivum are newly to Korea. Dominant family are Tricholomataceae, Russulaceae and Polyporaceae;genus Amanita and species Collybia confluens and Russula emetica In useful fungi and ecological resources, edible fungi included 51 species; culture fungi 10; poisonous fungi 18: medicinal fungi 17: anticancer fungi 22: ectomycorrhizal fungi 26 and wood rotting fungi 51, In geographical distributions of Chonbuk areas, same species are 50 spcies of Jeongup ; 56 of Mt.Manduck : 84 of Mt.Jiri : 28 of Pyonsan national park : 59 of Cheonju arboretum and 51 of Mt,Sunun.

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