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中文摘要：
利用大型称重式蒸渗仪测定了冬小麦不同生育期的农田蒸发蒸腾量,分析了冬小麦的蒸发蒸腾变化规律,探讨了参考作物蒸发蒸腾量（ET0）、土壤含水率与作物蒸发蒸腾量（ET）之间的关系。结果表明,ET0和蒸渗仪实测的ET生育期内变化趋势基本一致;冬小麦ET受0~60cm土层土壤含水率的影响,尤其是0~40cm土层土壤含水率对作物ET影响显著,80cm以下土层土壤含水率基本对作物ET无明显影响。
英文摘要：
With the data of winter wheat evapotranspiration of different growth period determined by largescale weighing lysimeter,the law of winter wheat evapotranspiration was analyzed,and the correlation between reference crop evapotranspiration（ET0）,soil moisture content and evapotranspiration（ET）was discussed.The results showed that the variation trends of ET0 and ET were consistent;and ET was affected by soil moisture content in 0~60cm soil layer,especially in 0~40cm soil layer,and soil moisture content below 80 cm soil layer had no significant effect on ET.
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