中文摘要：

基于不同地下水埋深土壤水与地下水转化田间试验,探讨冬小麦生长条件下不同地下水埋深对土壤水与地下水转化的影响机理。试验结果表明,地下水埋深为1.5 m,在冬小麦需水高峰期,地下水为冬小麦生长提供的水资源量占耗水量的30%以上;随着地下水埋深增大,地下水对冬小麦需水的动态调节作用减弱;当地下水埋深为3.5 m,地下水已基本失去对冬小麦需水的动态调节能力。

英文摘要：

A field experiment of the transformation between soil water and groundwater with different depth of groundwater has been conducted.It explores the influence mechanism of different groundwater level on the transformation between soil and groundwater under the condition of crop growth.The results show that when the water depth is 1.5 m,on the peak time of crop water demand,the underground water accounts for more than 30% of the crop water consumption for crop growth.With the increase in groundwater depth,the dynamic regulation of the groundwater on crop water requirement is weakened.When the groundwater depth is 3.5 m,the groundwater has basically lost the dynamic adjustment ability to crops water requirement.