Abstract:In this paper,the mathematieal methods used in the research on the simulation of groundwater quality and prediction of its pollution trend in Jinin city,Shandong Province were discussed.A mathematical model of groundwater quality was established based on the hydrogeological and enviro- nmental geological conditions in Jinin City,and the finite element and finite difference methods were employed for its solution;the“function smoothing” technigue was adopted to treat the dispersions of values in solving func-...