晚更新世以来华北平原地下水形成、演变与区域水文循环演化的周期性密切相关 ,区域地下水资源的形成能力取决于区域水文循环演化的进程。在多雨期 ,地下水可获取充足的补给 ;在少雨期 ,地下水补给较少。区域地下水资源利用潜力与水文循环陆地过程相关。人类通过调控水文循环陆地过程 ,可增大其利用潜力 The formation and evolution of groundwater in the North China Plain since the late Pleistocene are closely related to the periodicity of regional hydrological cycles. The formation of regional groundwater resources depends on the evolution of regional hydrological cycles. During wet periods, sufficient supplies of groundwater are available; in periods of low rainfall, groundwater recharge is less. The potential of regional groundwater resources is related to the hydrological cycle of land-based processes. By regulating the hydrological cycle of land processes, humans can increase their potential for utilization