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논벼에 대한 Penman-Monteith와 FAO Modified Penman 공식의 작물 계수 산정

Estimation of Paddy Rice Crop Coefficients for FAO Penman-Monteith and Modified Penman Method

  • 유승환 (서울대학교 조경지역시스템공학부 대학원) ;
  • 최진용 (서울대학교 조경지역시스템공학부) ;
  • 장민원 (서울대학교 조경지역시스템공학부)
  • 발행 : 2006.01.01

초록

In 1998, Food and Agriculture Organization addressed that FAO Modified Penman method possibly over-estimates consumptive use of water comparing to the measured reference crop evapotranspiration (PET) and Penman-Monteith method can be better choice for accurate PET estimation. Nevertheless it is still difficult to find research efforts about paddy rice crop coefficient for Penman-Monteith method. This study aims to estimate paddy rice crop coefficients for Penman-Monteith and FAO modified Penman methods in the manner of comparing two equations. To estimate the crop coefficients, measured evapotranspiration data during 1982-1986 and 1995-1997 were used. The average Penman-Monteith crop coefficients ranged from 0.78 to 1.58 for translated paddy rice and from 0.87 to 1.74 for flood-direct seeded paddy rice. The average FAO Modified Penman crop coefficients ranged from 0.65 to 1.35 for translated paddy rice and from 0.70 to 1.58 for flood-direct seeded paddy rice.

키워드

참고문헌

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피인용 문헌

  1. Estimation of design water requirement using FAO Penman–Monteith and optimal probability distribution function in South Korea vol.95, pp.7, 2008, https://doi.org/10.1016/j.agwat.2008.02.010
  2. Analysis of design water requirement of paddy rice using frequency analysis affected by climate change in South Korea vol.112, 2012, https://doi.org/10.1016/j.agwat.2012.06.002
  3. Climate change impacts on water storage requirements of an agricultural reservoir considering changes in land use and rice growing season in Korea vol.117, 2013, https://doi.org/10.1016/j.agwat.2012.10.023
  4. Development of agricultural reservoir water supply simulation system vol.20, pp.2, 2014, https://doi.org/10.7851/ksrp.2014.20.2.103
  5. Modeling Daily Streamflow in Wastewater Reused Watersheds Using System Dynamics vol.56, pp.6, 2014, https://doi.org/10.5389/KSAE.2014.56.6.045
  6. Drought Index Development for Agricultural Drought Monitoring in a Catchment vol.16, pp.4, 2014, https://doi.org/10.5532/KJAFM.2014.16.4.359
  7. Paddy Field Modelling System For Water Quality Management vol.65, 2016, https://doi.org/10.1002/ird.2034