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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국습지학회 한국습지학회지 한국습지학회지 제4권 제1호
발행연도
2002.1
수록면
63 - 85 (23page)

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This study was carried out to provide basic data for waler environmental control and conservation and to elucidate monlhly water environmental factor, phytoplanklon flora and dominant species that each stations was maked a selection of a sites by represent 3 branch- river in the Taejon area from Nov. 1997 to Dec. 1998 Range of water temperature was 2.4'C - 30.9'C (means of 16.02'C - 18.92'C), pH was 7.1 - 1O.4(means of 7.40- 8.68). BOD was generally under 5mg/L except Gap-chon kyo in Nov. and COD was measure highly by interfer of men at the each sites. Especially, occasion of Gap-chon kyo, data was estimated about 3 - 13 times higher than another sites. D0 was showed 1.03 - 1O.43ppm, 55 was showed 1.0 - 120.0mg/L e TN was that, upper stream was O.63ppm, middle was O.35ppm and then lower was 0.44ppm, upper stream was higher than lower. TP was at upper stream 0.03ppm, middle 0.05ppm, lower O.06ppm, lower stream was higher than another. The phytoplankton f1ora was identified as total 230 taxa composed of 7 classes, 18 oders 35 families, 75 genara, 184 species, 42 virieties, 4 forms. There are composed of that Chlorophyceae 94 taxa(40.9%), Bacillariophyceae 66 taxa(28.8%), Euglenophyceae 39 taxa(17.0%), Cyanophyceae 24 taxa(10.4%), Chrysophyceae 4 taxa(1.7%), Rhodophyceae 2 taxa(0.8%) Xanthophyceae 1 taxa(O.4%) composition of 5pesies of each sites was Gapchon-kyo 119, Wonchon-kyo 94, Gasuwon-kyo and Mannyon-kyo 87, Ochung- kyo 78, Hyunam- kyo and 5uchim- kyo 77, Moochang -kyo 70 taxa and 5ansung- kyo 58 taxa. Number of species was showed tendency of increase lower stream Taejon-chon and youdung-chon and at the sites of confJuence were presented Synedra ulna and Diatom vugare like bacillariophyceae, Gap-chon was dorninated variously Oscillatoria princeps and chlorophyceae, confJuence of 3 branch- river was prescnted Euglenophyceae.

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