论文系统分析了石家庄地区70年来伴随社会经济发展的水资源开发历史,结合水文资料探讨了人类活动对区域水文环境变迁的影响。并通过对地下水采样,结合室内水化学和氚同位素测定,确认区域地下水补给来源主要是通过河道得到线状的垂向补给,和上游含水层的侧向补给两种天然途径。城市及工农业发展改变了区域水循环系统的补排结构。河流断流减少了地下水的垂向补给,造成地下水的补给源从原来的天然垂向补给和上游的侧向补给,变为单一的侧向补给。另一方面,大量开采地下水已成为区域地下水排泄的主要方式。其中用于农业灌溉的大部分以蒸发、蒸腾的形式耗散于大气,无法回补。地下水位的持续下降、地下水化学类型转变及其空间分布显示了水量和水质以及生态环境的变化。

Urbanization and associated economic development of China have experienced a speedy increase in last decades.Consequently,the local and surrounding areas of large cities in North China are facing to the problem of water scarcity.The current research investigates the development of water resources in Shijiazhuang area during the last 70 years and the associated change of hydrological cycle through historical data analysis,field survey,and groundwater quality and isotopic analysis.This investigation shows the local groundwater of Shijiazhuang mainly accepts vertical recharge through river channels and the lateral recharge from the aquifers in mountainous areas.Urbanization,industrialization,and development of agriculture have largely altered the natural hydrological cycle in the past 70 years,especially the recharge and discharge structure of groundwater system,which could be balanced and self-regulated formerly.Continuous dry-up of rivers in the study area cuts off the major vertical recharge source of groundwater.Meanwhile,the extensive exploitation of groundwater due to municipal,industrial,and agricultural use makes the urban area sifting to a groundwater discharge region from the formerly recharge region.Moreover,the chemical composition of groundwater and its spatial distribution illustrate the change of water quality and regional hydrological environments as well as the drop of groundwater table.