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Increasing forest diversity turns out to be insufficient in the face of extreme drought events


Trees of different species tend to compete less with each other in the use of forest resources. That is why forest diversity may exert a beneficial effect on their productivity stability when facing climate changes. However, does this solution always work? A research group led by the Complutense University of Madrid in which the UPV/EHU-University of the Basque Country has participated has confirmed this beneficial effect on productivity, although when facing extreme climate events, such as major droughts, this improvement is not observed.

Increasing tree diversity in forests improves productivity in the face of climate variations, although in the case of extreme events, such as severe drought, resilience does not increase, according to a piece of research by the Complutense University of Madrid, the UPV/EHU, the Autonomous University of Madrid and the University of Alcalá.

The results, published in Forest Ecology and Management, warn that in a context of increased aridity and frequency of extreme events, adaptation measures such as the increase in diversity may not suffice to offset the consequences of climate change. MORE