Impact of species composition on fire-induced stand damage in Spanish forests

Author:

Peris-Llopis Marina,Mola-Yudego Blas,Berninger Frank,Garcia-Gonzalo Jordi,González-Olabarria José Ramón

Abstract

AbstractMixed forests play a fundamental ecological role increasing biodiversity and providing ecosystem services; it has been suggested they have higher resilience and resistance against disturbances, particularly fire. Here, we compare tree mortality in post-fire mixed and pure stands in Spain, on 2,782 plots and 30,239 trees during the period 1986 to 2007. We show evidence that mixed stands can have higher post-fire mortality than pure stands, and specific mixtures of species with different fire-related strategies increase the stand's vulnerability to fire damage versus pure stands of either species, such is the case of Pinus halepensisPinus nigra mixtures. Mixtures of two species often had higher mortality than species growing in pure stands. Combinations of species with different fire-related strategies can both enhance or reduce forest resistance. The role and management of mixed forests should be reconsidered after these findings, in order to enhance forest resilience to fires.

Funder

Suomen Kulttuurirahasto

European Forest Institute

H2020 Marie Skłodowska-Curie Actions

Horizon 2020

Generalitat de Catalunya

Publisher

Springer Science and Business Media LLC

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