한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제34권5호
  • /
  • Pages.521-532
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  • 2001
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  • 2799-8746(pISSN)
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  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
권호 표지

임야지에서 강우사상시 질소거동 모의에 관한 연구

Simulation of Nitrogen Movement in the Rainfall Event at an Upland Agricultural Watershed

  • Kim, Sang-Hyeon (Dept. of Environmental Engineering, Pusan National University) ;
  • Kim, Geon-Mok (Dept. of Environmental Engineering, Pusan National University)
  • 발행 : 2001.10.01
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초록

강우유출시 발생되는 질소는 그 발생특성과 천이기작의 비정상성과 공간적 불균일성이 극심하다. 분산형 질소의 효율적인 관리를 위해서 GRASS-AGNPS 호환모형을 사용해서 비점오염 현상을 모의했다. 오염물의 거동에 대한 지형의 영향을 추정하기 위해 수치표고도를 구축하였다. 대상유역은 경북 청도군 청도읍의 한재천 유역으로 선정되었다. 모형 보정을 위한 수질자료는 강우시 유역내 15개 지점으로부터 시료를 채취하여 실험실에서 분석하였다. 모형 보정방법은 시행착오법을 사용하였다. 모형의 수행을 통해 질소성분 비점오염물의 공간적인 분포를 나타내는 수치도를 확보할 수 있었다. 생성된 수치도는 유역의 최적 관리 대책을 위한 의사결정 과정에 기여할 것으로 기대된다.

The propagation patterns of nitrogen during rainfall events are unsteady and heterogeneous due to the characteristics of generation and transport mechanisms. A simulation of non point source pollution was performed using GRASS-AGNPS to examine efficient management methods for diffusive pollution. Digital Elevation Model(DEM) was prepared to estimate the impact of topography on the transport pattern of diffusive pollutant Hanjaechon watershed on the Kyungbook province was selected as a study ares. Water quality samples were collected and analyzed for the calibration of the model. A heuristic approach was employed to improve the model performance. The model could successfully produce spatial distributions of nitrogen. The constructed map-layers may help to decision makers to determine the best management practices.

키워드

참고문헌

  1. 김진택, (1995). '농업 비점원 오염모형을 위한 지리자원정보시스템 호환모형의 개발 및 적용', 서울대학교 박사학위논문,
  2. 임상준, 박승우(1997). '논의 유출곡선번호 추정', 한국수자원학회논문집, 제30권 제4호, pp.379-387
  3. 조재필, (1998). '복합 토지이용 특성의 농촌 유역에 대한 농업비점원 오염 모형의 적용', 서울대학교 석사학위논문
  4. 최철웅, (1999) '지형공간정보체계를 이용한 수문지형인자 결정에 관한 연구', 부산대학교 박사학위 논문
  5. Byars, B.W. Byars and S.F. Clamons, (1997) Section VII-New GRASS 4.2 Commands, GRASS 4.2 Reference manual, GRASS Research Group, Baylor University, pp. 37
  6. Creed, I. F. and Band L. E. (1998) 'Exploring functional similarity in expert of nitrate-N from the forested catchments: A mechanistic modelling approach.' Water Reso. Res. Vol. 34 No. 11, pp. 3079-3093 https://doi.org/10.1029/98WR02102
  7. Ehlschlaeger. C. R., (1989) 'Using the AT Search Algorithm to Develop Hydrologic Models from Digital Elevation Data.' in proceeding of the International Geographic Information System (GIS) Symposium, Baltimore. MD. pp. 275-281
  8. Foster, G.R. (1992) 'Modeling the erosion process' in Hydrologic Modeling of Small Watersheds. Ed. C.T.Hann. ASAE Monograph Number 5, American Society of Agricultural Engineers, St. Joseph, ML pp. 297 - 380
  9. Grundwald, S. and Norton, L. D. (2000) 'Calibration and Validation of a nonpoint source pollution model' Agri. Watcr Manage. Vol. 45 No.1 pp 17-39 https://doi.org/10.1016/S0378-3774(99)00074-8
  10. Shen, H. W. and P. Julien, (1992). 'Erosion and Sediment Transport,' Handbook of Hydrology. Ed. David R. Maidrnent, pp. 12.45-12.55
  11. Smith, R.E., and J.R. Williams. (1982) Simulation of the surface water hydrology, in CREAMS, A field scale model for Chemicals, Runoff, and Erosion from Agricultural Management Systems. Ed., W.C. Knisel, USDA, Conservation Research Report 26, Washington, DC., Chapter 2, Vol. 1., pp. 13-35
  12. Srinivasan, R. (1992). Spacial Decision Support System for Assessing Agricultural Nonpoint Source Pollution Using GIS, Ph. D. Thesis, May, Purdue University
  13. Wischrneier, W. H, C. B. Johnson, and B. V. Cross., (1971) 'A soil erodibility nomograph for farmland and construction sites,' J. Soil and Water Conservation, Vol 26, No 5, pp 189-193
  14. Young, R.A., C.A. Onstad, D.D. Bosch and W.P. Anderson., (1987) AGNPS, Agricultural Nonpoint Source Pollution Model: A large Watershed Analysis Tool, Conservation Research Report 35, Agricultural Research Service, USDA, Washinton, D.C. pp, 77
  15. Young, R.A., C.A. Onstad, D.D. (1985). Bosch and W.P. Anderson., Agricultural nonpoint surface pollution models (AGNPS) I and II model documentation, St. Paul: Minn. Pollution control Agency and Washington D.C., USDA -Agricultural Research Service
  16. Young, R.A., M.A. Otterby and A.Roos. (1987). 'A technique for evaluation feedlot pollution potential,' J. Soil and water Conservation; Vol 37, No 1, 21-23