The Zonation Of Groundwater Over Exploitation In Jining City

In this paper, the groundwater dynamics method is applied to analyze dynamic decline rates of 236 groundwater observing wells. The MapInfo and Surfer software are used to draw groundwater contour maps and establish correlation. Over-exploitation of shallow pore water is scientifically analyzed in order to designate the over-exploitation zones in Jibei and Jiaxiang and calculate their areas.On the basis of intensive investigation and mass data collecting, dynamic monitoring ranges are reasonably determined. Hydrologic and hydrogeological conditions in Jining city are amply described. Besides, groundwater aquifers and relation between recharging and discharging in different hydrologic sub-districts are surveyed. Allowable withdrawal of groundwater resources in dynamic monitoring districts is calculated for proposing measures and suggestion for further management and recovering in over-exploitation zones.According to determined over-exploitation areas above, water resource quantity and allowable withdrawal in dynamic monitoring districts are briefly calculated to obtain allowable withdrawal modulus. Basing on analyzing land subsidence and other environmental geological disasters of different extents caused by concentrated groundwater withdrawal in recent years, dynamic monitoring scenarios for groundwater over-exploitation zones are proposed. In the last part, control measures for groundwater over-exploitation are summarized, viz.: using storm water in lag time and constructing groundwater recharge projects, with the purpose of effectively protecting groundwater resources, guaranteeing sustainable utilization of water resources, and providing sustainable development of economic society with scientific technical support.