Hydrochemical Characteristics and Hydrogeochemical Simulation Research of Groundwater in the Guohe River Basin (Henan Section)

With the implementation of policy ecological protection and high-quality development Yellow River Basin, Guohe which is close to middle reaches also an important part future development. Mathematical statistics, Piper diagram, ion proportion coefficient method, Gibbs diagram reverse hydrogeochemical simulation are used analyze chemical characteristics evolution groundwater in Basin (Henan Section). The dominant ions study area HCO3? Na+, three-layer aquifer has obvious zoning characteristics. results show that types shallow this HCO3?Na • Mg Ca, intermediate HCO3-Na deep HCO3?Na. Using it found Ca2+, Mg2+ undergo cation exchange aquifer. According simulation, gypsum three aquifers a dissolved state, carbonate sulfide ores layer dissolved, dolomite halite calcite precipitated carbonate, precipitated; model established find Ca2+ displaces Na+ aqueous medium. This research can provide scientific basis for rational utilization Basin.