SWAT-QUALKO2 연계 모형을 이용한 관개기 순별 관개수질 모의

Simulation of 10-day Irrigation Water Quality Using SWAT-QUALKO2 Linkage Model

  • 김지혜 (서울대학교 농업생명과학대학 지역시스템공학전공) ;
  • 정한석 (서울대학교 농업생명과학대학 지역시스템공학전공) ;
  • 강문성 (서울대학교 농업생명과학대학 조경.지역시스템공학부, 농업생명과학연구원) ;
  • 송인홍 (서울대학교 농업생명과학대학 조경.지역시스템공학부, 농업생명과학연구원) ;
  • 박승우 (서울대학교 농업생명과학대학 조경.지역시스템공학부, 농업생명과학연구원)
  • 투고 : 2012.10.18
  • 심사 : 2012.11.01
  • 발행 : 2012.11.30


The objectives of this study were to develop a linked watershed-waterbody modeling system and to assess the impacts of indirect wastewater reuse on irrigation water quality. The Osan stream watershed within Gyeonggi-do of South Korea was selected for this study. The linked modeling system was composed of the SWAT (Soil and water assessment tool) and QUALKO2 models. The SWAT model was calibrated and validated using the stream discharge and water quality data from 2010 to 2011. Runoff and non-point source pollutants from each subbasin and stream discharge from 1980 to 2009 were simulated by the SWAT model and applied to the QUALKO2 model. The QUALKO2 model was calibrated and validated under the conditions of low water and normal discharges, respectively. Finally, The 10-day irrigation water quality from April to September was simulated. The statistical measures of coefficient of determination ($R^2$), reliability index (RI), and efficiency index (EI) were used to evaluate the system performance. The $R^2$, RI and EI values ranged from 0.5 to 1.0, 1.03 to 1.92, and -35.03 to 0.95, respectively. The 10-day irrigation water quality showed the concentrations of BOD and coliform exceeded the water quality guidelines for wastewater reuse. The linked modeling system can be a useful tool to estimate non-point source pollutant loads in watershed and to control the water quality of effluent from a wastewater treatment plant and irrigation water in the downstream waterbody.



연구 과제번호 : 하수처리수의 농업용수 간접재이용시스템 개발과 적용

연구 과제 주관 기관 : 농림수산식품기술기획평가원


  1. Choi, H. G., D. I. Kim, J. E. Kim, and K. Y. Han, 2011. Non-point source impact analysis through linkage of watershed model and river water quality model. Journal of Environmental Impact Assessment, 20(1): 25-36 (in Korean).
  2. Enforcement decree of the framework act on environmental policy, article 2, No. 23967 (20. Jul, 2012) (in Korean).
  3. Enforcement rule of the sewerage act, article 3, No. 463 (04. Jul, 2012) (in Korean).
  4. Gyeonggi Institute of Health & Environment, 2008. Comprehensive plan for water quality improvement (in Korean).
  5. Han River Basin Environmental Office (HRBEO), 2009a. Water environment management plan for Anseong stream mid-watershed (2009-2013) (in Korean).
  6. Han River Basin Environmental Office (HRBEO), 2009b. Water environment management plan for upper and lower region of Imjin river (2009-2013) (in Korean).
  7. Kang, M. S., 2002. Development of total maximum daily loads simulation system using artificial neural networks for satellite data analysis and nonpoint source pollution models. Seoul National University, Seoul, Korea (in Korean).
  8. Kang, M. S., S. W. Park, S. M. Kim, and C. H. Seong, 2004. Rice cultivation with reclaimed wastewater irrigation for wastewater reuse. Journal of the Korean Society of Agricultural Engineers, 46(1): 75-86 (in Korean).
  9. Lee, J. H., J. W. Seo, and C. J. Kim, 2012. Analysis on trends, periodicities and frequencies of Korean drought using drought indices. Journal of Korea Water Resources Association, 45(1): 75-89 (in Korean).
  10. Leggett, R. W. and L. R. Williams, 1981. A reliability index for models. Ecological Modelling, 13(1981): 303- 312.
  11. McAvoy, D. C., P. Masscheleyn, C. Peng, S. W. Morrall, A. B. Casilla, J. M. U. Lim, and E. G. Gregorio, 2003. Risk assessment approach for untreated wastewater using the QUAL2E water quality model. Chemosphere, 52(2003): 55-66.
  12. Migliaccio, K. W., I. Chaubey, and B. E. Haggard, 2007. Evaluation of landscape and instream modeling to predict watershed nutrient yields. Environmental Modelling & Software, 22(2007): 987-999.
  13. Ministry of Construction & Transportation (MOCT), 2002. Anseong stream maintenance basic plan (revised) (in Korean).
  14. Ministry of Environment (ME), 2009. Guidelines for wastewater reuse (revised) (in Korean).
  15. Ministry of Environment (ME), 2011. 2010 Statistics of sewerage (in Korean).
  16. Ministry of Land, Transport and Maritime Affairs (MLTM), 2011, Long-term plans for water resources (2011-2020) (in Korean).
  17. Nash, J. E. and J. V. Sutcliffe (1970), River flow forecasting through conceptual models part I - A discussion of principles. Journal of Hydrology, 10(3): 282-290.
  18. National Institute of Environmental Research (NIER), 2005. Development of stream water quality model for total maximum daily load (II) (in Korean).
  19. National Institute of Environmental Research (NIER), 2007. QUALKO2 model explanation (in Korean).
  20. Park, S. W., 2004. Application for wastewater reclamation and reuse (code#4-5-1). Seoul National University, Seoul, Korea (in Korean).
  21. Park, S. W., 2007. Application of wastewater reuse system for agriculture (code#4-5-2). Seoul National University, Seoul, Korea (in Korean).
  22. Park, S. W., 2011. Application of integrated technologies for wastewater reclamation and reuse system for agriculture (code#4-5-3). Seoul National University, Seoul, Korea (in Korean).
  23. Park, S. W. and T. I. Jang, 2009. Technology for safe wastewater reuse in agriculture. River and Culture, 5(3): 102-106 (in Korean).
  24. Rural Research Institute (RRI), 2005. A study on water supply methods considering variation of farming conditions in paddy field (in Korean).
  25. Seong, C. H., S. J. Kim, S. M. Kim, and S. M. Kim, 2011. Analysis of wastewater reuse effect on fieldscale water quality. Journal of the Korean Society of Agricultural Engineers, 53(4): 59-65 (in Korean).
  26. US EPA, 1995. QUAL2E windows interface user's guide.
  27. Yu, J. J., Y. S. Yoon, S. H. Shin, H. G. Kwon, J. S. Yoon, Y. I. Jeon, D. K. Kang, and B. S. Kal, 2011. Water quality prediction and forecast of pollution source in Milyanggang mid-watershed each reduction scenario. Journal of the Environmental Sciences, 20(5): 589- 598 (in Korean).

피인용 문헌

  1. Irrigation Water Quality Standards for Indirect Wastewater Reuse in Agriculture: A Contribution toward Sustainable Wastewater Reuse in South Korea vol.8, pp.12, 2016,