Generation and Discharge Characteristics of Non-point Pollutants from Farmlands of Small Watershed for Nak-dong River

낙동강 소유역 경지에서의 비점오염원 물질 발생 및 배출 특성

  • Jung, Yong-Jun (Department of Environmental Engineering, Kyungpook National University) ;
  • Nam, Kwang-Hyun (Daegu-Gyeongbuk Development Institute) ;
  • Min, Kyung-Sok (Department of Environmental Engineering, Kyungpook National University)
  • Received : 2004.02.03
  • Accepted : 2004.06.10
  • Published : 2004.07.30

Abstract

This study was carried out to investigate the generation and discharge characteristics of non-point pollutants from farmlands in Nak-dong river basin. Annual unit generation load of nitrogen and phosphorus by fertilization in the test paddy field was almost similar to those calculated by the fertilization standards of district agricultural technology center, but it was extremely higher in case of the test dry field. By comparing annual total generation load of nutrients from fertilization to the data of fertilizer marketing, the accurate forecasting of generation load of pollutants was achieved by marketing data. The annual total discharge ratio of nutrients through infiltration and overflow from the farmland of the test paddy field were 9.5% and 1.1%, respectively, and those in the test dry field were 22.0% and 0.1%, respectively. The monthly discharge load of nutrients were shown the highest proportioned to the discharge load from lands, but it showed higher in phosphorus, which was caused by the intermittent discharge of phosphorus accumulated in drainage.

Keywords

References

  1. 환경부, 비점오염원 관리요령 (2001)
  2. lchiki, A. and Yamada, K., Study on characteristics of pollutant runoff into lake Biwa Japan, Wat. Sci. Technol., 39(12), pp. 17-25 (1999)
  3. 이현동, 안재환, 배철호, 김운지, 강우시 유출부하량을 이용한 팔당상수원 유역의 비점오염원 원단위와 발생량 추정, 한국물환경학회지, 17(3), pp. 313-326 (2001)
  4. 이현동, 배철호, 비점오염원 유출특성과 저감을 위한 최적관리방안, 한국물환경학회지, 18(6), pp. 569-576 (2002)
  5. CH2M HILL, Inc., Nonpoint source impact assessment, WPCF research foundation report 90-5 (1990)
  6. 山田 淳 Diffuse pollution 硏究の現狀と今後の展開, 水環境學會誌, 20(12), (1997)
  7. 한재석, 김주훈, 김만식, 유역의 비점오염부하량 산정에 관한 연구, 환경관리학회지, 6(1), pp. 147-157, (2000)
  8. 이상훈, 조욱상, 소하천의 오염부하량이 수질에 미치는 영향에 관한 연구, 환경영향평가, 10(1), pp. 9-19 (2001)
  9. 나은혜, 박석순, 유역 및 하천모델의 결합적용을 통한 시기별 오염부하량 산정, 대한환경공학회지, 23(9), pp.1561-1573 (2001)
  10. Loucks, Steddinger, Shoemaker, Water Resource System Analysis and Planning, (1991)
  11. 田淵俊雄, 高村義親, 集水域からの窒素 . 憐の流出, (財)東京大學出版會, (1985)
  12. 國松孝男 外, 河 川汚解濁の モテル 解析, 國立公害硏究所硏究報告, (1986)
  13. 환경부, 수질오염공정시험법, 동화기술, 서울 (1998)
  14. APHA, Standard methods for the examination of water and wastewater, 20th ed., Washington D.C., U.S.A. (1998)
  15. 김동군 등, 단위수역의 환경용량 산정에 관한 연구, 국립환경연구원 (1991)
  16. 서윤수 등, 수질환경 기준 달성 최적화 방안에 관한 연구, 국립환경연구원 (1990)
  17. 和田安彦, ノソポイソト汚染U源榮のモデル解析, 技報堂出版, pp. 11-73 (1990)
  18. Wanielista, M.P., Yousef Y.A., and McLellow W.M., Nonpoint source effects on water quality, JWPCF, 49(6), pp. 441-451 (1977)
  19. 정동일, 지리정보체계를 이용한 오염물질 유출해석 및 삭감계획에 관한 연구, 고려대학교 박사학위 논문, 서울 (1998)
  20. 김성수, 김종석, 방기연, 권은미, 정욱진, 경안천 유역의 강우사상별 비점오염원 유출특성 및 원단위 조사, 대한환경공학회지, 24(11), pp. 2019-2027 (2002)
  21. 이현동외, 팔당상수원 비정오염원 유출특성과 최적관리방안, 한국건설기술연구원 (2000)