Abstract

In this paper, the calculation and optimization of groundwater resources in Rizhao coastal area are realized by means of ground investigation, geophysical prospecting, pumping test, water level measurement and sampling test, groundwater recharge, diameter, drainage and other factors. According to the calculation and analysis of groundwater resources in the investigation area, the hydrochemical types in the investigation area can be divided into eight categories Cl, HCO3, HCO3⋅Cl, HCO3⋅SO4, HCO3⋅NO3, NO3Cl, SO4, and NO3. The mineralization degree is mostly above 0.3g/l. The groundwater recharge in the investigation area is 8638.40×104m3/a, and the groundwater consumption is 6017.12×104m3/a. Furthermore, on the basis of calculation and analysis of groundwater resources, this paper delimits the prohibition and restriction zones of the investigation area by groundwater resources exploitation and hydrochemical properties, and puts forward reasonable exploitation opinions, such as building underground seepage interception dams and constructing groundwater reservoirs, so as to realize the optimization of groundwater resources in the investigation area. This not only guarantees the groundwater resources demand of Rizhao City, but also has certain reference and application value for the rational utilization evaluation of groundwater resources in other regions.

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