Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Simulation of Generable Nutritive Salts by Artificial Rainfall Simulator in field - By Varying Amount of Fertilization and Slope -

인공강우기에 의한 밭에서의 영양물질 배출특성 모의 - 시비량 및 경사도 변화 -

  • 신민환 (국립환경과학원 금강물환경연구소) ;
  • 원철희 (강원대학교 지역건설공학과) ;
  • 최용훈 (강원대학교 지역건설공학과) ;
  • 서지연 (강원대학교 지역건설공학과) ;
  • 최중대 (강원대학교 지역건설공학과)
  • Received : 2010.04.08
  • Accepted : 2010.04.28
  • Published : 2010.05.31
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Abstract

Various fundamental and practical theories and technologies are needed for the development of Best Management Practices (BMPs) to manage the problems. The objectives of this paper was to investigate the effect of fertilizer and Non-point suource (NPS) pollution discharges from the field. The effect of fertilizer application was measured with respect to 10 % and 20 % slopes, respectively, using artificial rainfall simulator. The effect of fertilizer application on runoff was not significant because the effect of slope and rainfall intensity were overwhelmed. Runoff from 20 % plots was 21 % larger than that from 10 % plots. While groundwater discharge from 10 % plots was about 70 % larger than that from 20 % plots. It was concluded that runoff and groundwater discharge were largely affected by slope. T-N concentration in groundwater was much higher than that in runoff for both 10 % and 20 % plots. While T-P concentration in groundwater was lower than that in runoff. It explained that T-N moved well through soil pores without adsorption and other chemical reactions but T-P was well adsorbed on the surface of soil particles.

Keywords

References

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