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降水入渗补给系数与地层相关分析的目的，是为推求山丘区降水入渗补给量．鲁中山丘区是由各种不同地层出露组成的山丘区域．在多个水文流域基流分割基础上，建立流域年均降水入渗补给系数与各种地层出露面积占流域总面积权重间的最佳回归方程，利用该回归方程和地层分布及降水量推算不同地下水流域的降水入渗补给量．在地下水开发利用不高的山丘区，降水入渗补给量即为地下水补给量．
Precipitation infiltration recharge coefficient and stratigraphic correlation analysis is aimed at inferring the amount of rainfall infiltration recharge. Lu Zhongshan District is a mountainous area composed of various strata exposed. Based on the basal flow segmentation of multiple hydrological basins, the best regression equation between annual average rainfall infiltration recharge coefficient of the basin and total area weight of the basin is established. By using the regression equation and the stratigraphic distribution and precipitation calculation Precipitation infiltration recharge in different groundwater basins. In the hilly area where groundwater exploitation is not well utilized, the infiltration recharge is the recharge of groundwater.