参考作物蒸散量（ET0）的准确估算是作物需水量及区域农业水分供需计算的关键,尽管已提出大量方法,但缺乏基于实测值的严格检验。本文......

Evapotranspiration is an important component in water-balance and irrigation scheduling models. While the FAO-56 Penman-......