Based on the daily meteorological data of more than 200 stations all over China,daily reference evapotranspiration(ET_0) was(estimated) by using the FAO Penman-Monteith equation.

• 基于全国范围200多个气象站测站逐日气象观测资料,应用FAO-Penm an-M on te ith公式,计算得出各站历年逐日参照作物腾发量ET0。