한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제55권4호
  • /
  • Pages.37-44
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  • 2013
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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경작지에서 볏짚거적의 비점오염물질 저감 평가

Evaluation of NPS Pollutant Reduction of Rice Straw Mats in Field

  • 원철희 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 신민환 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 최용훈 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 임경재 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 한영한 (강원발전연구원) ;
  • 권재혁 (강원대학교 삼척캠퍼스) ;
  • 최중대 (강원대학교 농업생명과학대학 지역건설공학과)
  • 투고 : 2013.03.21
  • 심사 : 2013.06.11
  • 발행 : 2013.07.31
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초록

We have examined the effect of rice straw mat (RSM) on the reduction of non-point source (NPS) pollution loads at soybean cultivations. The slope of the experimental plot was about 3 %. Monitoring was carried out for four years at conventional tillage (CT) in 2008~2009 years and RSM covered tillage in 2010~2011 years. Thirty-two rainfall events were monitored and analyzed during the study period. During the 2 years of 2008 and 2009, 20 rainfall runoff events were monitored. But in 2010 years, only 2 rainfall runoff events could be monitored. And in 2011 years, 10 rainfall runoff events was monitored. It was because the RSM cover enhanced infiltration and reduce runoff in 2010 and 2011. Average NPS pollution load (organic matters) of the RSM covered field was reduced by 72.1~94.2 % compared to that of CT field. NPS pollution load of TN and TP reduced by 67.5 % and 55.7 %, respectively. Especially, SS pollution load was reduced by 97.3 %. Based on the results, rice straw mat cover was considered as a promising best management practices (BMP) to reduce NPS pollution load. However, it was recommended that the results are limited to the field conditions and the same experiments must be performed on different soil textures, slopes, and crops if it is applied to the development of policies.

키워드

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피인용 문헌

  1. Application Evaluation of Best Management Practices for Agricultural Non-Point Source Pollution using Delphi Survey Method vol.33, pp.2, 2014, https://doi.org/10.5338/KJEA.2014.33.2.144