Estimation of Nitrogen Mass Balance in Sihwa-ho Watershed, 2010

2010년 시화호유역 질소 물질수지 산정

  • Choi, Jung-Kil (Department of Environmental Chemistry and Ecology, GeoSystem Research Corporation(GeoSR)) ;
  • Lee, Hyo-Jin (Department of Environmental Chemistry and Ecology, GeoSystem Research Corporation(GeoSR)) ;
  • Kim, Tea-ha (Department of Environmental Chemistry and Ecology, GeoSystem Research Corporation(GeoSR)) ;
  • Choi, Jea-hun (Department of Environmental Chemistry and Ecology, GeoSystem Research Corporation(GeoSR)) ;
  • Woo, Jun-Sik (Department of Environmental Chemistry and Ecology, GeoSystem Research Corporation(GeoSR)) ;
  • Lee, Kang-Wung (Department of Environmental Science, Hankuk University of Foreign Studies)
  • 최정길 ((주)지오시스템리서치 환경화학생태부) ;
  • 이효진 ((주)지오시스템리서치 환경화학생태부) ;
  • 김태하 ((주)지오시스템리서치 환경화학생태부) ;
  • 최재훈 ((주)지오시스템리서치 환경화학생태부) ;
  • 우준식 ((주)지오시스템리서치 환경화학생태부) ;
  • 이강웅 (한국외국어대학교 환경학과)
  • Received : 2017.11.23
  • Accepted : 2018.02.09
  • Published : 2018.03.31


Nitrogen budgets in Sihwa-ho in 2010 were estimated using a mass balance approach. Major nitrogen fluxes sources can be divided into three sections: cities, agricultural area, and forest. Surplus nitrogen 2,030~2,214 ton/yr (2,123 ton/yr in average) was discharged to Sihwa Lake. 20% of the surplus nitrogen is removed from the wetland and 60% is removed tidal flats. Therefore net nitrogen discharge from Sihwa basin is estimated to be 650~708 ton/yr (679 ton/yr in average). Wet and dry nitrogen deposition and load from non-point sources ware estimated to be 97 ton/yr and 69 ton/yr, deposition is using CAMx model. So estimated total nitrogen discharge into Sihwa-ho was 817~875 ton/yr (846 ton/yr in average). The atmospheric load explains 11.1~11.9% (11.5% in average) of the total nitrogen load Sihwa-ho.


Sihwa-ho;Nitrogen;Deposition;Nitrogen mass balance


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