Study on the Hydrochemical Characteristics and Formation Mechanism of Gaoyou Lake and Its Inflow and Outflow Rivers
Using methods such as Piper trilinear diagrams,SPSS software,and Gibbs model,this paper analyzes the hydrochemical characteristics of Gaoyou Lake water based on the lake water and water quality data from August 15-16,2020 of the inflow and outflow river water of Gaoyou Lake,and reveals their main ion sources and controlling factors.The results show that the inflow and outflow river water of Gaoy-ou Lake are generally weakly alkaline freshwater,with dominant ions being Ca2+,Na+and HCO3-.The hydrochemical types of lake water are mainly HCO3-Na·Ca and HCO3-Na,while the inflow and outflow river water is mainly HCO3-Na·Ca.The hydrochemical characteristics are controlled by the weathering and dissolution of silicate rocks,with the presence of cation exchange.The methodology of this study pro-vides a reference for researching the hydrochemical characteristics and formation mechanisms of key lakes and rivers.
Gaoyou Lakehydrochemical characteristicsformation mechanismPiper trilinear dia-gramsSPSS softwareGibbs model
NETL
NSTL
万方数据
