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Updated: Jun 27, 2025

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
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Groundwater salinization risk assessment using combined artificial intelligence models.

Oussama Dhaoui1,2, Isabel Margarida Antunes3, Ines Benhenda4

  • 1Higher Institute of Water Sciences and Techniques, Applied Hydrosciences Laboratory, University of Gabes, University Campus, 6033, Gabes, Tunisia. dhaoui.oussama2013@gmail.com.

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|April 28, 2024
PubMed
Summary

Artificial intelligence models, including artificial neural networks (ANN), improve groundwater salinization risk assessment in arid regions. ANN models show superior accuracy over traditional methods for predicting groundwater contamination.

Keywords:
Arid regionsArtificial intelligenceDRASTICGroundwater salinizationMenzel Habib

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Area of Science:

  • Hydrogeology
  • Environmental Science
  • Artificial Intelligence

Background:

  • Groundwater contamination risk assessment is vital for water resource management, especially in arid regions like Menzel Habib, Tunisia.
  • The original DRASTIC vulnerability methodology has limitations in accurately reflecting groundwater salinization risk (GSR).
  • Existing methods show a weak correlation between the DRASTIC Vulnerability Index (VI) and groundwater total dissolved solids (TDS).

Purpose of the Study:

  • To develop and validate artificial intelligence (AI) models for assessing groundwater salinization risk (GSR).
  • To enhance the original DRASTIC methodology by incorporating TDS-GSR indicators.
  • To compare the performance of ANN, SVR, and MLR models in predicting GSR.

Main Methods:

  • Application of artificial neural networks (ANN), support vector regression (SVR), and multiple linear regression (MLR) algorithms.
  • Utilizing the seven parameters of the original DRASTIC model as inputs.
  • Employing groundwater salinization risk (GSR) values derived from TDS as outputs for AI models.

Main Results:

  • The original DRASTIC VI indicated low to moderate vulnerability (91-141) but showed a weak correlation (r < 0.5) with TDS.
  • The ANN model demonstrated superior performance, achieving a correlation coefficient (r) of 0.89 and a Willmott Agreement Index (d) of 0.4 during training.
  • ANN-based methodologies proved more robust and accurate than SVR, MLR, and the original DRASTIC model.

Conclusions:

  • AI models, particularly ANN, offer a more accurate and robust approach to assessing groundwater salinization risk.
  • Incorporating TDS-GSR indicators significantly improves groundwater vulnerability assessment compared to the original DRASTIC model.
  • The findings provide valuable insights for managing groundwater contamination risks in arid environments.