한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제48권3호
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  • Pages.97-106
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  • 2006
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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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관개기 시험구 논에서의 오염물질의 농도특성

Pollutant Concentrations at Experimental Paddy Plots during Irrigation Season

  • 조재원 (동문과학상사) ;
  • 김진수 (충북대학교 농업생명환경대학) ;
  • 오광영 (충북대학교 농업과학기술연구소) ;
  • 오승영 (국립환경과학원 수질총량관리센터)
  • 발행 : 2006.05.01
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초록

The pollutant concentrations at experimental paddy plots with three (excessive, standard, reduced) different fertilization rates were investigated during 2001-2002 irrigation seasons. Mean concentrations of pollutants in ponded water were not significantly different among three experimental plots, but the T-N concentrations in percolated water significantly depended on fertilization rates. The T-N, T-P and $COD_{Cr}$, concentrations in ponded water during early irrigation season (late May to mid-June) were much higher than those during later irrigation season likely due to fertilization and low uptake by young rice crops. The T-N concentrations decreased but the concentrations of T-P and $COD_{Cr}$, increased three days after tillering fertilization. The removal rates of T-N by paddy plots were $0.13-0.16g/m^2{\cdot}d$ for an excessive fertilization plot, $0.08-0.25g/m^2{\cdot}d$ for a standard fertilization plot, and $0.03-0.34g/m^2{\cdot}d$ for a reduced fertilization plot three days after tillering fertilization. On the other hand, T-P and $COD_{Cr}$, were released three days after tillering fertilization.

키워드

참고문헌

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피인용 문헌

  1. Characteristics of TN and TP in Runoff from Reclaimed Paddy Field of Fine Sandy Loam vol.46, pp.6, 2013, https://doi.org/10.7745/KJSSF.2013.46.6.417
  2. Analysis of Nutrient Load Balance in the Reservoir Irrigated Paddy Block vol.55, pp.6, 2013, https://doi.org/10.5389/KSAE.2013.55.6.167
  3. Characteristics of Nutrient Concentrations in Groundwater under Paddy and Upland Fields vol.53, pp.6, 2011, https://doi.org/10.5389/KSAE.2011.53.6.067
  4. Environmental Aspect of Runoff Water from Miscanthus Production Field vol.55, pp.6, 2013, https://doi.org/10.5389/KSAE.2013.55.6.113