한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제53권6호
  • /
  • Pages.129-136
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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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경사지 밭에서 발생하는 토양유실 저감을 위한 피복재 적용

Surface Cover Application for Reduction of Runoff and Sediment Discharge from Sloping Fields

  • 신민환 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 원철희 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 박운지 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 최용훈 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 신재영 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 임경재 (강원대학교 농업생명과학대학 지역건설공학과) ;
  • 최중대 (강원대학교 농업생명과학대학 지역건설공학과)
  • 투고 : 2011.09.19
  • 심사 : 2011.11.09
  • 발행 : 2011.11.30
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초록

To measure effects of surface cover on runoff and sediment discharge reduction using rainfall simulator, four(5 m${\times}$30 m scale) plot experiments were conducted in this study. Surface covers made with straw mat, Polyacrylamide (PAM), chaff, and sawdust were simulated 4 times under 31.1~44.4 mm/hr rainfall intensities. Compared with results from control plot, the time of runoff generation is delayed and outflow volume decreased with surface cover. Effects on runoff reduction of straw mat, PAM, sawdust and chaff ranged 4.7~81.5 % and runoff rate reduced by 6.5~76.1 % respectively, when compared with those from control plot. The percentage of decrease in sediment discharge were 99.7~99.8 % from straw mat+sawdust+PAM plots, 85.9~95.6 % from straw mat+PAM plots, and 98.5~99.4 % from straw mat+chaff+PAM plots. The runoff, sediment discharge, and SS concentration reduction efficiencies of the cover materials were outstanding when compared to control plot. It was analyzed that reduction of runoff and sediment discharge were mainly contributed by decrease in rainfall energy impact and flow velocity and increase of infiltration due to the surface cover materials. The results could be used as a base for the development of best management practices (BMPs) to reduce runoff, sediment discharge from sloping field.

키워드

참고문헌

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피인용 문헌

  1. Evaluations of NPS Reduction using the Rice Straw Mats and Soil Amendments from Steep Sloped Field vol.55, pp.2, 2013, https://doi.org/10.5389/KSAE.2013.55.2.029
  2. 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
  3. Evaluation of NPS Pollutant Reduction of Rice Straw Mats in Field vol.55, pp.4, 2013, https://doi.org/10.5389/KSAE.2013.55.4.037
  4. Application of Surface Cover Materials and Soil Amendments for Reduction of Non-Point Source Pollution from Upland Fields vol.55, pp.4, 2013, https://doi.org/10.5389/KSAE.2013.55.4.021
  5. A Plot Scale Soil Erosion Control Experiment for Silt Fence and Vegetated Ridge Applied Sloped Upland vol.48, pp.4, 2014, https://doi.org/10.14397/jals.2014.48.4.273