한국물환경학회지 (Journal of Korean Society on Water Environment)

  • 제30권4호
  • /
  • Pages.377-385
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  • 2014
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  • 2289-0971(pISSN)
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  • 2289-098X(eISSN)
한국물환경학회 (Korean Society on Water Environment)
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기후변화에 따른 대청호 추동지점에서의 남조류 발생 패턴 분석

Effect of Climate Change for Cyanobacteria Growth Pattern in Chudong Station of Lake Daechung

  • 노성유 (국립환경과학원 유역생태연구팀) ;
  • 박혜경 (국립환경과학원 낙동강물환경연구소) ;
  • 최희락 (국립환경과학원 유역생태연구팀) ;
  • 이재안 (국립환경과학원 유역생태연구팀)
  • Noh, SungYu (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Park, HaeKyung (Nakdong River Environment Research Center) ;
  • Choi, HeeLak (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Lee, JaeAn (Watershed Ecology Research Team, National Institute of Environmental Research)
  • 투고 : 2014.02.14
  • 심사 : 2014.06.05
  • 발행 : 2014.07.30
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초록

To study the fluctuations and relationship in climate change, environmental factors and cyanobacteria communities, we investigated Chudong station of the Daechung reservoir. The average annual temperature showed the maximum value ($13.9^{\circ}C$) from 1994, showed a gradually increasing pattern from 1969 to 2010 in the Daechung reservoir. The number of days with temperatures over $20^{\circ}C$, minimum temperature of the year and average temperature of the winter season patterns also showed a significant increase. The long-time changed in the annual precipitation were not showed a significant variation. The water temperature record comparatively high value in summer, declined in winter. At all period, the phytoplankton were highest biomass in July 2000, and then, showed comparative higher biomass in the summer months. Cyanobacteria taxa were also showed more than 50%. Emergence of cyanobacteria also appeared in November 2007, were prolonged emergence. The dominant genera of taxa were the dominant sphere (Microcystis spp.) until early 2000. After that, the dominant species were the dominant linear (Aphanizomenon spp., Anabaena spp.). Cyanobacteria were the most correlated with water temperature (r = 0.341, p<0.01) and phosphate concentration (r = 0.355, p<0.01).

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피인용 문헌

  1. Effect of Pollutants Control Measures in So-oak Watershed on the Control of Algae Growth in Daecheong Reservoir vol.25, pp.4, 2016, https://doi.org/10.14249/eia.2016.25.4.248
  2. Analysis of Water Quality factor and Correlation between Water Quality and Chl-a in Middle and Downstream Weir Section of Nakdong River vol.39, pp.2, 2017, https://doi.org/10.4491/KSEE.2017.39.2.89