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Related Experiment Video

Updated: May 29, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
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A new process-based approach for defining karst aquifer vulnerability to contamination risks under global changes.

Tamara Leins1, Mirjam Scheller2, Kübra Özdemir Çallı3

  • 1Institute of Groundwater Management, TU Dresden, 01069 Dresden, Germany; Chair of Hydrological Modeling and Water Resources, University of Freiburg, 79098 Freiburg, Germany.

The Science of the Total Environment
|February 4, 2025
PubMed
Summary

Karst aquifer vulnerability to contamination is assessed using a new process-based approach. Climate change impacts on karst water resources are found to be more significant than land-use changes.

Keywords:
Climate change impact analysisContamination risk assessmentKarst aquifer vulnerabilityKarst transport modelingLand-use changeVarKarst model

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Area of Science:

  • Hydrogeology
  • Environmental Science
  • Water Resource Management

Background:

  • Karst groundwater is vital but vulnerable to contamination due to aquifer heterogeneity.
  • Assessing karst aquifer vulnerability and environmental change impacts is crucial for water quality.
  • Existing methods may not fully capture dynamic changes in karst systems.

Purpose of the Study:

  • To develop and apply a novel process-based approach for assessing karst aquifer vulnerability.
  • To investigate the influence of climate and land-use changes on karst aquifer vulnerability.
  • To predict the impact of future environmental conditions on karst water resources.

Main Methods:

  • Derived karst transport parameters from tracer tests and breakthrough curves (BTCs).
  • Applied a simple transport model coupled with a karst flow model.
  • Predicted BTCs under projected climate and land-use change scenarios.

Main Results:

  • Karst aquifer vulnerability varies with hydrogeology, flow conditions, climate, and land use.
  • Climate change impacts on karst aquifer vulnerability exceed land-use change impacts.
  • Future projections show potential for both increased and decreased karst vulnerability, with seasonal variations.

Conclusions:

  • The proposed approach is a valuable tool for karst aquifer vulnerability assessments.
  • Understanding future changes is essential for safe karst water resource management.
  • Continuous improvement in assessment methods is needed for effective karst water management.