Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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Non-point Source Impact Analysis through Linkage of Watershed Model and River Water Quality Model

유역모형과 하천수질모형의 연계를 통한 비점오염원 영향분석

  • Choi, Hyun Gu (School of Archi. & Civil Engineering, Kyungpook National Univ.) ;
  • Kim, Dong Il (School of Archi. & Civil Engineering, Kyungpook National Univ.) ;
  • Kim, Ji Eun (Incheon International Airport Corporation) ;
  • Han, Kun Yeun (School of Archi. & Civil Engineering, Kyungpook National Univ.)
  • 최현구 (경북대학교 건축.토목공학부) ;
  • 김동일 (경북대학교 건축.토목공학부) ;
  • 김지은 (인천국제공항공사) ;
  • 한건연 (경북대학교 건축.토목공학부)
  • Received : 2010.09.02
  • Accepted : 2010.12.29
  • Published : 2011.02.28
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Abstract

In this study, the accurate water quality analysis in rivers, including the non-point source is performed. First of all, watershed model, SWAT(Soil and Water Assessment Tool) was applied to analyze the impact of the non-point source in study area. And then, water quality analysis integrating the point source and the non-point source is implemented using QUALKO model. For more exact simulation, it should be the calibration and verification of variables and parameters which are needed for simulation. In addition, the importance of considering the non-point source was confirmed in river water quality simulation. BOD, TN, TP were analysed, and the results shows that BOD, TN and TP concentration was increased to 16.8%, 8.2% and 25.8% respectively. The more accurate estimate will be carried if use of reliable measurements and watershed simulation be done in models linking process. The suggested technique will improve the accuracy of the water quality analysis. The methodologies presented in this study will contribute to basin-wide water quantity and quality management.

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References

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