Crop evapotranspiration : guidelines for computing crop water requirements
Crop evapotranspiration : guidelines for computing crop water requirements
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发表时间：
1998
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通讯作者：
R. Allen;L. S. Pereira;D. Raes;Martin Smith
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作者：
R. Allen;L. S. Pereira;D. Raes;Martin Smith
（初版：1998年，再版：2004年）。本出版物介绍了一个更新的程序计算参考和作物蒸散量的气象数据和作物系数。1977年，粮农组织第24号灌溉和排水文件《作物需水量》首次提出了这一程序，该程序允许在考虑到气候影响和作物特性的情况下，估计作物的用水量。该出版物纳入了粮农组织1990年5月组织的一个高级别专家小组建议的确定作物用水量的研究进展和更准确的程序。准则的第一部分包括根据粮农组织彭曼-蒙特斯方法确定参考作物蒸散量的程序。随后更新了不同作物在不同生长阶段和生态条件下的蒸散量估算程序。
(First edition: 1998, this reprint: 2004). This publication presents an updated procedure for calculating reference and crop evapotranspiration from meteorological data and crop coefficients. The procedure, first presented in FAO Irrigation and Drainage Paper No. 24, Crop water requirements, in 1977, allows estimation of the amount of water used by a crop, taking into account the effect of the climate and the crop characteristics. The publication incorporates advances in research and more accurate procedures for determining crop water use as recommended by a panel of high-level experts organised by FAO in May 1990. The first part of the guidelines includes procedures for determining reference crop evapotranspiration according to the FAO Penman-Monteith method. These are followed by updated procedures for estimating the evapotranspiration of different crops for different growth stages and ecological conditions.