What is it about?

Increasing drought severities over Poland. Highlights • Drought-prone area delineated by trends in soil moisture and evaporative stresses • Significant drying in surface and root zone soil moisture, and evaporative stress • Evidence of intensifying droughts of multi-year character • SPI, SPEI and scPDSI not properly revealing soil and ecological drought severities • Disturbed water storage-demand links in drought-prone area requiring future studies

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Why is it important?

This study evaluated six drought indices, in terms of their ability to reproduce soil and ecological drought patterns across Poland, and revealed significant differences between the growing season drought severities evaluated in the multi-year period 1981–2019.

Perspectives

For drought management and adaptation actions, an improved insight into the dynamic behavior of the soil-vegetation system, the spatial and temporal representation of soil water stores and evapotranspiration response in particular, is vital to enable a better detection of drought events and their extent. Further studies are needed to uncover the complex changes in the SM-ET-vegetation feedbacks, to explain the role of components of evapotranspiration in the formation of evaporative stress, and to predict the implications of droughts in a future climate.

Urszula Somorowska
University of Warsaw

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This page is a summary of: Amplified signals of soil moisture and evaporative stresses across Poland in the twenty-first century, The Science of The Total Environment, March 2022, Elsevier,
DOI: 10.1016/j.scitotenv.2021.151465.
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