研究济南地区的分级地下水流系统中的地下水年龄分布数值模拟

Abstract. Understanding groundwater age is essential for the aquifer management. In this study, a typical hydrogeological cross section in Jinan is selected to set up a coupled groundwater flow and age transport model. The simulation results show that hierarchical groundwater flow systems, composed by the nested local, intermediate and regional subsystems, are developed from the northern piedmont of Mount Taishan to Qiguang Fault. The scales of these flow subsystems are primarily controlled by the topography. Aquifer lithology variations also influence the groundwater flow system. Groundwater