한국환경농학회지 (Korean Journal of Environmental Agriculture)

  • 제24권2호
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  • Pages.117-122
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  • 2005
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  • 1225-3537(pISSN)
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  • 2233-4173(eISSN)
한국환경농학회 (The Korean Society of Environmental Agriculture)
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가축분퇴비 및 토양개량제 처리가 온난화 가스 배출에 미치는 영향

Effects of Livestock Compost and Soil Conditioner Application on Greenhouse Gases Emission in Paddy Soil

  • 발행 : 2005.06.30
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초록

논 토양으로부터 발생된 지구온난화 가스의 배출 제어 기술을 구명하기 위하여 논 토양에서 가축분퇴비 및 토양개량제 시용에 따른 온실가스 배출 양상을 검토하였다. 축분퇴비 시용에 따른 $CH_4$ 배출량은 우분퇴비 처리구가 331 kg $ha^{-1}$로 가장 많았으며, 돈분퇴비 시용구는 282 kg $ha^{-1}$, 계분퇴비 시용구는 294 kg $ha^{-1}$이었다. $N_2O$ 배출량은 계분퇴비 시용구가 1.78 kg $ha^{-1}$, 돈분퇴비 시용구가 1.78 kg $ha^{-1}$, 우분퇴비 시용구가 1.60 kg $ha^{-1}$이었다. 반면에 볏짚을 시용한 처리구의 $N_2O$ 배출량은 1.44 kg $ha^{-1}$이었다. 지구온난화 지수(global warming potential : GWP)는 우분퇴비 처리구가 7,447 kg $ha^{-1}$로 가장 많았으며, 돈분퇴비 시용구는 6,474 kg $ha^{-1}$, 계분퇴비 시용구는 6,726 kg $ha^{-1}$ 그리고 볏짚시용구는 6,956 kg $ha^{-1}$이었다. 토양개량제 시용에 의한 온난화 가스 배출시험에서 석회 시용구의 $CH_4$ 배출량은 다근 처리에 비해 373 kg $ha^{-1}$로 가장 많았으며, 규산 시용구는 264 kg $ha^{-1}$, 인공제올라이트 시용구는 239 kg $ha^{-1}$ 그리고 볏짚 시용구는 310 kg ha-1이었다. $N_2O$ 배출량은 석회 시용구가 1.49 kg $ha^{-1}$, 규산 시용구가 1.40 kg $ha^{-1}$, 인공제올라이트 시용구가 1.38 kg $ha^{-1}$이었다. 지구온난화지수(GWP)는 석회 처리구가 8,295 kg $ha^{-1}$, 규산 시용구는 5,978 kg $ha^{-1}$, 인공제올라이트 시용구는 5,447 kg $ha^{-1}$ 그리고 볏짚 시용구는 6,956 kg $ha^{-1}$이었다.

To find out reducing way of methane emission from a paddy field monitoring on the greenhouse gases emissions were carried out in the paddy soil with livestock compost and soil conditioner. The seasonal variations of methane emission were high at 36 days and 86 days after rice transplanting, on the other hand those of nitrous oxide emission were high at 64 days after that day. Methane emission by cow compost application, pig compost application and chicken compost application were 331, 282 and 294 kg $ha^{-1}$, respectively. Otherwise, nitrous oxide emissions by cow compost application, pig compost application and chicken compost application were 1.60, 1.78 and 1.78 kg $ha^{-1}$ respectively. The total emission rate of greenhouse gases equivalent to $CO_2$ emission rate (GWP) was 7,447 kg $ha^{-1}$ in cow compost application, 6,474 kg $ha^{-1}$ in pig compost application and 6,726 kg $ha^{-1}$ in chicken compost application. Methane emission by Ca, $SiO_2$ and artificial zeolite application were 373, 264, 239 kg $ha^{-1}$, respectively. The total emission rate of greenhouse gases equivalent to $CO_2$ emission rate (GWP) was 8,295 kg $ha^{-1}$ in Ca application 5,978 kg $ha^{-1}$ in $SiO_2$ application and 5,447 kg $ha^{-1}$ in artificial zeolite application.

키워드

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