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分析了冬小麦生长期地下水地下水资源量动态过程和地下水、土壤水分变化特征。结果表明 ,在地下水浅埋区地下水对土壤水的补给为农田蒸散的重要的水分来源 ,现行的灌溉制度不考虑这一作用 ,过多的灌溉量不仅会消弱地下水对土壤水的补给 ,而且多余的土壤水分还会下渗补给地下水 ,造成水资源的无效损失和动力能源的损耗。为了提高作物水分利用效率 ,提出了相应的地下水土壤水资源调控措施
The dynamic process of groundwater resources and the change of groundwater and soil moisture in winter wheat growing season were analyzed. The results show that the recharge of groundwater to groundwater is an important source of water for farmland evapotranspiration in shallow groundwater. The current irrigation system does not take this role into consideration. Excessive irrigation amount will not only weaken groundwater recharge to soil water, Excess soil moisture will infiltrate groundwater to infiltrate, resulting in ineffective loss of water resources and loss of power and energy. In order to improve the efficiency of crop water use, we put forward the corresponding control measures of groundwater and soil water resources