With the development of the city, the contradiction between urban water supply and spring protection has become increasingly prominent, and the groundwater resources must be developed reasonably under the premise of ensuring that the spring water is not affected. Monthly rainfall and water level data of Botu Spring Group from 1990 to 2005 in Jinan area were selected to analyze the characteristics of rainfall recharge and the lagging response of water level in spring area to precipitation by statistical method. When the average of three-point movement of precipitation starts to correlate with water level in spring area, the average of ten-point movement of precipitation has the strongest correlation with water level in spring area. The current spring water level is closely related to the comprehensive rainfall in the first ten months. After ten-point moving average treatment of precipitation, through comparative analysis of groundwater exploitation data in urban area, east of Jinan and west of Jinan, it is proved that water level in spring area is closely related to groundwater hydrology unit in urban area and west of Jinan, and there is no hydraulic connection with groundwater hydrology unit in east of Jinan, so groundwater unit in east of Jinan can be reasonably exploited.

average of movement  /  rainfall recharge  /  lagging response  /  hydraulic connection