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Revue de presse et du net par le Pôle de partage des connaissances S&T de l'Office français de la biodiversité
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Global and regional trends and drivers of fire under climate change

Recent wildfire outbreaks around the world have prompted concern that climate change is increasing fire incidence, threatening human livelihood and biodiversity, and perpetuating climate change. Here, we review current understanding of the impacts of climate change on fire weather (weather conditions conducive to the ignition and spread of wildfires) and the consequences for regional fire activity as mediated by a range of other bioclimatic factors (including vegetation biogeography, productivity and lightning) and human factors (including ignition, suppression, and land use).

DocBiodiv's insight:
Via @richardabetts Article paru en 2022
Jones, M. W., Abatzoglou, J. T., Veraverbeke, S., Andela, N., Lasslop, G., Forkel, M., et al. (2022). Reviews of Geophysics, 60, e2020RG000726. https://doi.org/10.1029/2020RG000726
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Impact des changements climatiques sur les feux de forêt dans le Sud-Est de la France - International Journal of Wildland Fire

Impact des changements climatiques sur les feux de forêt dans le Sud-Est de la France - International Journal of Wildland Fire | Biodiversité | Scoop.it

We aimed to assess the impact of future climate change on fire activity in southeastern France and estimate changes in spatial and seasonal distributions.

Key results Fire activity could increase by up to +180% for +4°C of global warming, with large expansions of fire-prone regions and long seasonal lengthenings. Overall, changes will be dominated by intensification within the historical fire niche, representing two-thirds of additional future fire activity, half of this occurring during the high fire season.

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via  @julien_ruffault @IJWildlandFire

Lire aussi Ruffault, J., Limousin, J.-M., Pimont, F., Dupuy, J.-L., De Càceres, M., Cochard & al. (2022), Plant hydraulic modelling of leaf and canopy fuel moisture content reveals increasing vulnerability of a Mediterranean forest to wildfires under extreme drought. New Phytol. https://doi.org/10.1111/nph.18614

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