Geochemical Characteristics and Controlling Factors of Chemical Composition of Groundwater in a Part of the Nanchang Section of Ganfu Plain

This work aims to investigate the hydrochemical characteristics and formation mechanisms of shallow groundwater in a part Nanchang section Ganfu plain. The data from 90 samples were interpreted by methods mathematical statistics, Piper diagrams, Gibbs plots, ratio graphs ions, geochemical modeling. results show that is weakly acidic, average concentration cation decrease Ca2+ > Na+ Mg2+ K+, abundance order HCO3− NO3− SO42− Cl− for anions. type was dominated HCO3-Na·Ca·Mg, HCO3·Cl-Na·Ca·Mg, HCO3-Na·Ca. Moreover, main controlling factor hydrochemistry water-rock interactions. K+ mainly originate dissolution halite. are controlled carbonate dissolution, while anions come evaporite carbonate. chemical evolution affected precipitation mineral phase exchange.