Study on Mechanism of Ecological Replenishment on Groundwater Environment in Jialu River
In order to study the impact of ecological water replenishment on groundwater environment,the water-rock interaction simulation experiment of ecological water replenishment,groundwater and water-bearing medium was carried out,which explored the change rule and mechanism of the main water-chemical components of different water-bearing medium and different proportions of water replenishment.The results showed that the higher the proportion of ecological water replenishment,the lower the concentration of K+,Na+,Ca2+ and HCO3-in the mixed solution.The increase of Na+,Cl-,HCO3-,SO42-concentrations in the water-rock interaction is mainly due to the dissolution of rock salt,gypsum,calcite and dolomite,and the cation alternating adsorption occurs during the reaction.Compared with pure water group,ecologi-cal replenishment changes the original groundwater chemical composition and improves the regional water environment.The South-to-North Water Diversion Project has become the main source of water supply in Zhengzhou,which solved the serious water shortage problem there,and played an important role in ensuring the domestic water supply,the devel-opment of industrial and agricultural production and the protection of ecological environment in Jialu River basin.
Ecological water resplenishmentJialu RiverWater-chemical componentsGroundwater