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This paper represents an application of Penman-Monteith equation standardized by the Food and Agriculture Organization (FAO56-PM) simultaneously with crop coefficient approach (single crop coefficient...) for the estimation values of reference evapotranspiration (ETo) and crop evapotranspiration under standard conditions (ETc) from forest and rice field. Seven year daily meteorological data (Jan 1996 . Dec 2002) were used in Itoshima peninsula, western region of Fukuoka City, Japan. The reference crop that used for calculating ETo was considered as a hypothetical crop with an assumed height of 0.12 m having a surface resistance of 70 s m-1 and an albedo of 0.23. The standard conditions refer to crops grown in large fields under excellent agronomic and soil water conditions. The aim is to introduce an effective water resources management for Itoshima area regarding that it will have a future change in land use due to the construction of the new campus (Ito campus) of Kyushu University.続きを見る
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