상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제23권6호
  • /
  • Pages.703-709
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  • 2009
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  • 1225-7672(pISSN)
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  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

용존규소농도의 변화가 하천 부착조류의 밀도와 우점율에 미치는 영향에 관한 연구

Effects on Density and Dominant rate of Periphyton by Variation of Dissolved Silicon Concentration

  • 전경호 (일본동북대학대학원 토목공학과)
  • 투고 : 2009.09.24
  • 심사 : 2009.10.22
  • 발행 : 2009.12.15
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초록

In this study, an artificial-waterway experiment was conducted, using an attachment plate, on which algae from Nanakita river was placed, to examine the influence exerted by the variation of the dissolved-silicon concentration on the river periphyton. As a result, the variation of the dissolved-silicon concentration was found to exert an influence on the density of the adhesion diatom, and the mole ratio limits of the silica were about $Si/P{\fallingdotseq}182$ and $Si/N{\fallingdotseq}16.4$ or less. Moreover, the mole ratio that is necessary for proliferation was found to be larger than the value of the oceanic algae. Senedesmus sp. and Ankistrodesmus sp., which used silica in adhesion chlorophyta, received the influence of the silicon concentration strongly, and the twowere found to be superior in the environment, making silica a restriction factor.

키워드

과제정보

연구 과제 주관 기관 : 일본 하천환경관리재단

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