An Integrated Analysis of Hydrological Changes in Shijiazhuang Region Due to Socio-economic Development in the Past 70 Years
石家庄地区近70年来伴随经济发展的水文环境变化分析

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.