한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제53권4호
  • /
  • Pages.29-37
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  • 2011
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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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지표피복재 적용을 통한 비점오염원 저감효과 분석

Analysis of the Reduction Effect on NPS Pollution Loads by Surface Cover Application

  • 신민환 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 원철희 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 박운지 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 최용훈 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 장정렬 (한국농어촌공사 농어촌연구원) ;
  • 임경재 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 최중대 (강원대학교 농업생명과학대학 지역건설공학과)
  • 투고 : 2011.04.20
  • 심사 : 2011.06.27
  • 발행 : 2011.07.31
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초록

Effect of rice straw mat and wood shaves on the reduction of runoff and nonpoint source (NPS) pollution loads from field plots were experimentally studied. Three runoff plots of $5{\times}22$ m in size and 3 % in slope were prepared on a loamy sand field. Each plot was equipped with a flume to measure runoff and collect water samples. Experimental treatments of surface cover were bare, wood shaves (1,000 kg/ha) and rice straw mat cover (3,000 kg/ha). Under radish was cultivation. During the growing season of the radish, three rainfall-runoff events were monitored. Effect of wood shaves and straw mat cover on runoff reduction was 4~30 % and 33~75 % respectively compared to control. The effect on NPS pollution reduction was 36.8 and 64.3 % in BOD, 41.1 and 80.8 % in SS, 34.0 and 56.1 % in TP and 28.0 and 56.6 % in TN respectively. It was analyzed that the reduction of runoff and NPS pollution were mainly contributed by the decrease of rainfall energy impact and flow velocity and the increase of infiltration due to the surface cover materials. Rice straw mat showed very stable soil cover while large portion of wood shaves were lost during heavy storm events. It was concluded that straw mat was an efficient cover material to reduce NPS pollution from upland fields.

키워드

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피인용 문헌

  1. Application of the Surface Cover Materials for Reduction of NPS Pollution from Actual Cultivation vol.56, pp.3, 2014, https://doi.org/10.5389/KSAE.2014.56.3.031
  2. Application of Surface Cover Materials for Reduction of NPS Pollution on Field-Scale Experimental Plots vol.65, 2016, https://doi.org/10.1002/ird.2067
  3. Analysis of Reduction of NPS Pollution loads using the small sediment trap at field vol.54, pp.2, 2012, https://doi.org/10.5389/KSAE.2012.54.2.027
  4. Effect of No-Till Practice on Runoff and Nonpoint Source Pollution from an Intensively Farmed Field in Korea vol.65, 2016, https://doi.org/10.1002/ird.2072
  5. Probabilistic Analysis of Vertical Drains using Hasofer-Lind Reliability Index vol.53, pp.6, 2011, https://doi.org/10.5389/KSAE.2011.53.6.001
  6. Surface Cover Application for Reduction of Runoff and Sediment Discharge from Sloping Fields vol.53, pp.6, 2011, https://doi.org/10.5389/KSAE.2011.53.6.129