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February 21, 2026Hydrology researchOpen Access

Cost-effective reconstruction of high-frequency ion dynamics in karst groundwater using electrical conductivity and PHREEQC inverse modeling

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Authors

TZTao ZhangFHFen HuangJCJianhua Cao

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Overview

Demonstrates a cost-effective method for monitoring ion dynamics in karst groundwater, suggesting improved management strategies.

Key Points

  • The central aim is to develop a cost-efficient method for reconstructing high-frequency ion concentrations in karst groundwater.
  • Combined continuous electrical conductivity measurements with PHREEQC geochemical modeling.
  • Applied the method at three contrasting karst spring sites in the Li River Basin, China.
  • Analyzed major ions' concentration dynamics every 30 minutes.
  • Successfully reproduced concentration dynamics of major ions like Ca2+, Mg2+, and HCO3−.
  • Achieved higher accuracy in ion concentration reconstruction compared to linear regression.
  • Identified systematic deviations linked to site-specific factors, such as evaporation.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/69994bef873532290d020097https://doi.org/10.2166/nh.2026.219
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  1. 1Decomposing the Bulk Electrical Conductivity of Streamflow To Recover Individual Solute Concentrations at High Frequency2017 · 21 citations