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Evaluation on MUSLE Runoff Energy Coefficient in Small Forest Watershed

산림소유역에서 MUSLE 유출에너지인자 계수값의 적용성 평가

  • Received : 2015.11.20
  • Accepted : 2015.12.17
  • Published : 2015.12.31

Abstract

This study was carried out to investigate coefficient and exponent of runoff energy in MUSLE for small forest watershed, Hwachoen watershed in Gangwon-do. For 15 rainfall events, runoff volume, peak discharge and sediment yield were measured and these data were used to calculate coefficient and exponent of runoff energy. The results of this study showed that $LS{\bullet}K{\bullet}C{\bullet}P$ factors of MUSLE were affected by slope steepness. The coefficient and exponent of runoff energy were validated with coefficient of efficiency of 0.92 and these values were suggested to 0.002 and 0.81 respectively. The comparison of the coefficients and exponents between Hwacheon and other forest watersheds showed that these values would reflect the effect of forest management within watershed.

Keywords

Rainfall erosivity;Soil erosion;Suspended solid;GIS

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Acknowledgement

Grant : 산림수자원 장기 모니터링 및 관리기술 개발