Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Soil Erosion Reduction Plan for Watershed with Sloping Fields of Highland Agriculture by Using GEOWEPP Model

GEOWEPP 모형을 이용한 고랭지 경사지밭 소유역의 토양유실 저감방안

  • 문종필 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 김태철 (충남대학교 농업생명과학대학 지역환경토목학과) ;
  • 이성현 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 권진경 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 이수장 (농촌진흥청 국립농업과학원 농업공학부) ;
  • 임경재 (강원대학교 농업생명과학대학 지역건설공학과)
  • Received : 2010.11.09
  • Accepted : 2010.11.25
  • Published : 2010.11.30
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Abstract

This study was performed to suggest a soil loss reduction skill through estimating soil erosion from a small watershed including each type of sloping agriland by using GEOWEPP model. Experimental watershed at Gangwon province was selected for very typical sloping fields of highland agriculture in Alpine area. Runoff discharge and sediment load, hourly rainfall amount occurred during storm event were gauged, and weather data were obtained from Daegwallyeong meteorological station. The results of GEOWEPP model estimation showed that relative error values for total runoff discharge and sediment load were 3 %, -14.5 % respectively. Based on the result, soil erosion and waterway path map for each hillslope were made to select target hillslope. Several hillslopes of severe soil erosion were analyezed and then the optimal vegetative filter strip construction width and waterway path to plant grass were decided by using GEOWEPP Model.

Keywords

References

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