crop evapotranspiration 作物蒸腾量与棵间蒸发量之和。
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.
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.
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