Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
권호 표지

Estimation of Methane Emission by Water Management and Rice Straw Application in Paddy Soil in Korea

한국 논토양(土壤)에서 물관리(管理)와 볏짚 시용(施用)에 따른 메탄 배출량(排出量)의 추정(推定)

  • Shin, Yong-Kwang (Agricultural Ecology Division, National Agricultural Science and Technology Institute) ;
  • Yun, Seong-Ho (Agricultural Ecology Division, National Agricultural Science and Technology Institute) ;
  • Park, Moo-Eon (Agricultural Ecology Division, National Agricultural Science and Technology Institute)
  • 신용광 (농업과학연구원, 농업생태과) ;
  • 윤성호 (농업과학연구원, 농업생태과) ;
  • 박무언 (농업과학연구원, 농업생태과)
  • Published : 1995.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Methane flux from a rice paddy in Korea was measured to study the effects of water management and rice straw application on methane emission under different water managements ; flooding and intermittent irrigation, and with or without rice straw application. Methane emission ranged from 0.066 to $0.455g\;CH_4m^{-2}d^{-1}$. Intermittent irrigation has shown a mitigation effect of methane emission, 70% in NPK plot and 47% in NPK plus rice straw plot, relative to that of flooding. Methane emission from Korean paddy was estimated as 399,590tons per year assuming that paddy fields were managed under intermittent irrigation and rice straw application. This estimation was lower than that of OECD's by 56%, Neue's by 51%, and Matthew's by 62%, while higher than that of Taylor's by 118%.

논토양에서 물관리 및 볏짚시용이 메탄배출에 미치는 영향을 알기 위하여 물관리로는 상시담수와 간단관개의 2처리로 하고 각각에 삼요소를 대조로 하여 볏짚의 시용효과를 조사하였다. 메탄배출량은 $0.066g\;CH_4m^{-2}d^{-1}{\sim}0.455g\;CH_4 m^{-2}d^{-1}$의 범위였다. 상시담수보다 간단관개의 NPK구에서는 70%, NPK+볏짚시용구에서는 47%의 메탄 배출저감효과가 인정되었다. 간단관개조건에서 볏짚을 전량 작토에 환원한다고 가정할 때 우리나라 메탄 총배출량은 399,590톤/년으로 추정된다. 이 양은 OECD의 참고값 대비 56%, Neue와는 51%, Matthew와는 62%로 낮고 Taylor와는 118%로 높다.

Keywords