不同天气情况下，作物蒸发蒸腾量的日变化曲线基本相同，都是典型单峰型，变化的幅度、变化速率、峰值出现的时刻以及峰值的大小有差异。
The curve of evapotranspiration is the typical unimodal sort, but for the difference with the amplitude , velocity , the size and time of the maximum evapotranspiration.
仪器的试验结果采用两种方法进行分析，第一种方法采用比值曲线方法，即将每日仪器水位变化值与参考作物蒸发蒸腾量（ET0）值相比，按日序列研究其变化；
The testing data were analysed by two methods. The first is specific value flexure method, that is the quotient of the water table variation and ET0 was studied by day serial.
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