Analysis of Suspended Solid Generation with Rainfall-Runoff Events in a Small Forest Watershed

산림 소유역에서 강우-유출에 따른 부유토사 발생 특성 분석

  • Kim, Jae-Hoon (Department of Forest Restoration, Korea Forest Research Institute) ;
  • Choi, Hyung-Tae (Department of Forest Restoration, Korea Forest Research Institute) ;
  • Lim, Hong-Geun (Department of Forest Restoration, Korea Forest Research Institute)
  • 김재훈 (국립산림과학원 산림복원연구과) ;
  • 최형태 (국립산림과학원 산림복원연구과) ;
  • 임홍근 (국립산림과학원 산림복원연구과)
  • Received : 2015.10.12
  • Accepted : 2015.12.03
  • Published : 2015.12.29


This study was carried out to investigate the characteristics of suspended solid concentration in small forest watershed, Hwacheon, Gangwondo. For five rainfall events from July 2013 to August 2013, rainfall, discharge, and suspended solid load has been measured. The results showed that the fist flush effect was observed for suspended solid in each rainfall event, sediment rating curve was obtained with $y=30.029x^{1.573}$ at rising limb and $y=12.902x^{1.8827}$ at falling limb, and EMC (event mean concentration) of suspended solid was calculated to 9.4 mg/L. EMC was compared to the values from the watershed that has various land use types and EMC from forest watershed was much lower that from the crop, paddy or low covered forest watershed.


Suspended solid;First flush effect;Sediment rating curve;Event mean concentration (EMC);Small forest watershed


Grant : 산림수자원 장기 모니터링 및 관리기술 개발


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