作物腾发量受土壤水分亏缺的制约，在不同的生长阶段，影响的大小亦不同。
The quantity of evapotranspiration of crops is limited by soil moisture deficits, in different growth period, the influences is different.
最后根据土壤湿度、作物腾发量以及作物的生长阶段采模糊决策作物的灌水量。
Finally, the irrigation water is decided by using fuzzy decision theory considering the effects of soil moisture, crop evapotranspiration and growing stage.
陆地表面的腾发量分布具有很大的空间变异性，而传统方法只能进行点上的计算。
Surface evapotranspiration has obvious spatial variability, but traditional measurement methods are based on point measurements.
受地区间气象、地形和地貌时空异质性的影响，不同参考作物腾发量计算公式适用性各不相同。
Due to the spatiotemporal heterogeneity of meteorology, landform and physiognomy, different reference crop evapotranspiration methods have different applicability.
作物腾发量(et)的时空尺度效应是作物高效用水调控与节水灌溉管理中需面对的基础科学问题。
The spatiotemporal scaling effect of crop evapotranspiration (ET) is a scientific basis for efficient water using and water saving management.
实际作物腾发量是水平衡模型计算的一个重要变量，它和每日降雨量，灌溉量及土壤径流量共同计算静止水的亏缺量。
Actual evapotranspiration is a significant variable in the water balance calculation. It links daily rainfall, irrigation amount and soil bypass flow to calculate an immobile water deficit.
受作物本身生理机制以及近地层气象因子非线性、非平稳化随机变化的影响，参考作物腾发量在时间尺度上具有自相似性特点。
Influenced by crops' physiological mechanism and the unsteady, non-linear stochastic variation of meteorological factors, reference evapotranspiration is characterized by its stochasticism.
受作物本身生理机制以及近地层气象因子非线性、非平稳化随机变化的影响，参考作物腾发量在时间尺度上具有自相似性特点。
Influenced by crops' physiological mechanism and the unsteady, non-linear stochastic variation of meteorological factors, reference evapotranspiration is characterized by its stochasticism.
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