Quantitative analysis of influences of Wohushan Reservoir on Jinan karst spring basin

The influences of operation of the Wohushan Reservoir on the recharge of groundwater of the Jinan karst spring basin downstream of the reservoir were analyzed,including the changes of hydrological characteristics of watercourses, the agricultural irrigation in the reservoir irrigation district,and the artificial recharge through water discharge from the reservoir.Based on these factors,the quantitative influences of the Wohushan Reservoir on the Jinan karst spring basin were analyzed.The results show that the spring discharge of the four spring groups was reduced by 11.8% through operation of the Wohushan Reservoir, without consideration of other factors.