#8195. Unravelling the role of vegetation on the different trends between climatic and hydrologic drought in headwater catchments of Spain

October 2026publication date
Proposal available till 08-06-2025
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Journal’s subject area:
Ecology;
Earth and Planetary Sciences (miscellaneous);
Global and Planetary Change;
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Abstract:
The availability of water resources is a major challenge of the Mediterranean region. Intense land use transformation has impacted the headwaters of river basins that generate most of the water resources, reducing streamflow This study analyses the evolution of hydrological and climatic drought in headwater catchments of Spain and it explores the extent to which vegetation can reinforce trends in hydrological drought severity in comparison to the evolution of cFlimatic drought severity. We have used the Standardized Precipitation Evapotranspiration Index and Standardized Streamflow Index to examine hydrological and climatic drought, respectively, and examined the changes in the frequency, magnitude, and duration of climatic and hydrologic droughts over non-perturbed headwater catchments of Spain from 1961 to 20XX. We quantified vegetation changes over time in the analysed catchments and we compared the changes in the climatic and hydrological droughts with changes in vegetation coverage using Pearsons r correlations and linear regression model.
Keywords:
Climatic drought; Hydrological drought; Land cover; Revegetation; Spain; Streamflow

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