Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Management of Ponding Depth and Discharge Filtration from Paddy Fields for Controlling Non-point Source Pollution

논 비점오염 저감을 위한 담수위 관리와 배출수 여과의 효과 분석

  • Choi, Yonghun (Agricultural Safety Engineering, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Youngjin (Agricultural Safety Engineering, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Seounghee (Agricultural Safety Engineering, National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Minyoung (Agricultural Safety Engineering, National Academy of Agricultural Science, Rural Development Administration)
  • Received : 2015.07.08
  • Accepted : 2015.11.09
  • Published : 2015.11.30
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Abstract

Field study was carried out to assess the effect of automatic inlet and filtration outlet to reduce non-point source discharge and save agricultural irrigation water from paddy. The comparison of control and treated plots showed that irrigation water was saved up to 58 mm and discharge water was reduced up to 110 mm. The filtration outlet improved the discharge water quality for SS, COD, TN and TP up to 60.1 %, 0.1 %, 4.5 %, and 26.0 %, respectively. Overall, the findings of this study indicated that non-point source pollution discharged from paddy fields where automatic inlet and filtration outlet were installed could be reduced 266.3 kg/ha/yr in SS, 10.3 kg/ha/yr in COD, 1.22 kg/ha/yr in TN, and 0.10 kg/ha/yr in TP, respectively. This clearly showed that the automatic inlet and filtration outlet are effective management method for saving of agricultural water and protecting water environment.

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References

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