Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Estimation of Paddy Rice Evapotranspiration Considering Climate Change Using LARS-WG

LARS-WG를 이용한 기후변화에 따른 논벼 증발산량 산정

  • 홍은미 (서울대학교 생태조경.지역시스템공학부 대학원) ;
  • 최진용 (서울대학교 조경.지역시스템공학부.농업생명과학연구원) ;
  • 이상현 (서울대학교 생태조경.지역시스템공학부 대학원) ;
  • 유승환 (서울대학교 생태조경.지역시스템공학부 대학원) ;
  • 강문성 (서울대학교 조경.지역시스템공학부.농업생명과학연구원)
  • Published : 2009.05.31
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Abstract

Climate change due to global warming possibly effects the agricultural water use in terms of evapotranspiration. Thus, to estimate rice evapotranspiration under the climate change, future climate data including precipitation, minimum and maximum temperatures for 90 years ($2011{\sim}2100$), were forecasted using LARS-WG. Observed 30 years ($1971{\sim}2000$) climate data and climate change scenario based on SRES A2 were prepared to operate the LARS-WG model. Using these data and FAO Blaney-Criddle method, reference evapotranspiration and rice evapotranspiration were estimated for 9 different regions in South Korea and rice evapotranspiration of 10 year return period was estimated using frequency analysis. As the results of this study, rice evapotranspiration of 10 year return period increased 1.56%, 5.99% and 10.68% for each 30 years during $2011{\sim}2100$ (2025s; $2011{\sim}2040$, 2055s; $2041{\sim}2070$, 2085s; $2071{\sim}2100$) demonstrating that the increased temperature from the climate change increases the consumptive use of crops and agricultural water use.

Keywords

References

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