利用河北雄县和望都两气象站的数据 ,对FAO推荐的气象数据缺测时参照腾发量的计算方法进行了检验和评价 ,分析了参照腾发量对各气象要素的敏感性 ,提出了在气象数据缺测条件下适应我国北方平原区气候条件的参照腾发量的计算方法 Based on the data of Xiongxu and Wangdu in Hebei, this paper tests and evaluates the calculation method of reference evapotranspiration in the absence of FAO recommended meteorological data, and analyzes the sensitivity of reference evapotranspiration to each meteorological element, Calculation method of reference evapotranspiration adapted to the climatic conditions in the northern plains of our country under the absence of meteorological data