Daide et al. (2026) Spatio-Temporal Dynamics of Vegetation and Water Stress in the Trichonida Basin Using Remote Sensing and Climatic Drought Indicators

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Identification

Journal: Limnological Review
Year: 2026
Date: 2026-05-28
Authors: Fatima Daide, Eleni Ioanna Koutsovili, Mohammed Mouad Mliyeh, Abderrahim Lahrach, Isavela N. Monioudi, Ourania Tzoraki
DOI: 10.3390/limnolrev26020022

Research Groups

Not specified in the provided text.

Short Summary

This study evaluates drought variability and ecosystem responses in Greece's Trichonida basin by integrating climatic indices with satellite-derived vegetation and temperature data. The findings reveal increasing drought persistence and significant seasonal water stress affecting vegetation and high-conservation-value habitats.

Objective

To investigate drought variability and the resulting ecosystem responses (specifically vegetation health and lake surface temperature) within the Trichonida basin.

Study Configuration

Spatial Scale: Trichonida basin, Greece (the largest natural freshwater system in the country).
Temporal Scale: Recent years (long-term trend analysis and seasonal variability).

Methodology and Data

Models used: Standardized Precipitation Evapotranspiration Index (SPEI), Normalized Difference Vegetation Index (NDVI), and Crop Water Stress Index (CWSI).
Data sources: Satellite-derived data (NDVI, CWSI, and lake surface water temperature).

Main Results

Drought Trends: SPEI analysis indicates that drought conditions have become more recurrent and persistent, particularly at medium- and long-term time scales.
Vegetation Response: NDVI showed a moderate long-term increase attributed to irrigation and agricultural activity, but experienced sharp declines during severe drought episodes.
Water Stress: CWSI revealed recurrent summer water stress events, though no significant long-term trend was identified.
Correlations:
- Positive correlation between NDVI and SPEI (medium- to long-term).
- Negative correlation between CWSI and SPEI (short- to medium-term).
- Strong relationship between NDVI and CWSI, highlighting vegetation sensitivity to water stress during summer and autumn.
Thermal Dynamics: Lake surface water temperature exhibited seasonal warming trends that coincided with periods of high vegetation water stress.
Ecological Risk: Calcareous fens dominated by Cladium mariscus were identified as highly vulnerable to drought-related water risks.

Contributions

The study establishes an integrated monitoring framework using multi-indicator analysis (combining climatic and satellite data) to assess ecosystem vulnerability in Mediterranean lake basins, providing a basis for sustainable freshwater management under increasing climatic variability.

Funding

Not specified in the provided text.

Citation

@article{Daide2026SpatioTemporal,
  author = {Daide, Fatima and Koutsovili, Eleni Ioanna and Mliyeh, Mohammed Mouad and Lahrach, Abderrahim and Monioudi, Isavela N. and Tzoraki, Ourania},
  title = {Spatio-Temporal Dynamics of Vegetation and Water Stress in the Trichonida Basin Using Remote Sensing and Climatic Drought Indicators},
  journal = {Limnological Review},
  year = {2026},
  doi = {10.3390/limnolrev26020022},
  url = {https://doi.org/10.3390/limnolrev26020022}
}

Original Source: https://doi.org/10.3390/limnolrev26020022