Study on Chemical Characteristics and Formation Mechanism of Groundwater in Heze City,Lower Reaches of Yellow River Basin
KONG Fanfei
FENG Yingming
ZANG Hao
YAO Qiang
SI Chen
Abstract：Research on the chemical characteristics and formation mechanism of groundwater is of great significance for the long-term sustainable development of groundwater and the health of residents using water.In order to deeply understand the characteristics and utilization value of groundwater resources in Heze City in the lower reaches of the Yellow River Basin,and provide important scientific basis for its sustainable utilization,this study adopted descriptive statistical analysis,ion analysis,Piper trilinear diagram,Gibbs diagram,and ion ratio,combined with PHREEQC simulation to calculate the mineral saturation index,this study revealed the chemical types of groundwater at different depths and the influence of evaporation concentration,rock weathering leaching,and cation exchange adsorption.The results indicate that the chemical types of shallow groundwater are mainly HCO3·SC4·Cl-Na·Mg,HCO3·Cl-Na·Ca·Mg,and HCO3-Na·Mg,while deep groundwater is mainly HCO3·SO4-Na.The leaching of rock weathering is mainly derived from the dissolution of silicate rocks and evaporite minerals,contributing 66.29％,while the contribution of carbonate rocks and other rock weathering is approximately 12.81％.In addition,the cation exchange adsorption of shallow groundwater is relatively complex.The rational development of shallow groundwater plays a positive role in improving the ecological environment.The results of this study contribute to a deeper understanding of the characteristics and utilization value of groundwater resources in the region,providing important scientific basis for their sustainable utilization.
Keywords：reaches of Yellow Riveralluvial plaingroundwaterhydrochemical characteristicsformation mechanism
Publication Date：2024-12-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 58-66 )