Decline of groundwater table and evolution of groundwater-overdraft regions in Linqing city

Abstract Groundwater is an important source of water, and continuous exploitation of groundwater makes groundwater over-exploited. Over-exploitation causes many environmental and geological problems, which will affect the stabilization of society and the healthy development of economic. This paper investigated the temporal and spatial variation of groundwater level and the area of over-exploitation and provide some measures to prevent the aggravation of groundwater. The results found that the groundwater level decreased obviously with time, and the groundwater funnel formed in 1990 in the study area. The groundwater overexploitation has become an unavoidable problem for the study area, Linqing city in Shandong. The government policymakers should pay more attention to the groundwater overexploitation problem.