Using unplanned fires to help suppressing future large fires in Mediterranean forests.

Despite the huge resources invested in fire suppression, the impact of wildfires has considerably increased across the Mediterranean region since the second half of the 20th century. Modulating fire suppression efforts in mild weather conditions is an appealing but hotly-debated strategy to use unpl...

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Autores principales: Adrián Regos, Núria Aquilué, Javier Retana, Miquel De Cáceres, Lluís Brotons
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Publicado: Public Library of Science (PLoS) 2014
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Acceso en línea:https://doaj.org/article/c41054b2de32401fafd671b69bd8b8a3
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spelling oai:doaj.org-article:c41054b2de32401fafd671b69bd8b8a32021-11-18T08:23:45ZUsing unplanned fires to help suppressing future large fires in Mediterranean forests.1932-620310.1371/journal.pone.0094906https://doaj.org/article/c41054b2de32401fafd671b69bd8b8a32014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24727853/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Despite the huge resources invested in fire suppression, the impact of wildfires has considerably increased across the Mediterranean region since the second half of the 20th century. Modulating fire suppression efforts in mild weather conditions is an appealing but hotly-debated strategy to use unplanned fires and associated fuel reduction to create opportunities for suppression of large fires in future adverse weather conditions. Using a spatially-explicit fire-succession model developed for Catalonia (Spain), we assessed this opportunistic policy by using two fire suppression strategies that reproduce how firefighters in extreme weather conditions exploit previous fire scars as firefighting opportunities. We designed scenarios by combining different levels of fire suppression efficiency and climatic severity for a 50-year period (2000-2050). An opportunistic fire suppression policy induced large-scale changes in fire regimes and decreased the area burnt under extreme climate conditions, but only accounted for up to 18-22% of the area to be burnt in reference scenarios. The area suppressed in adverse years tended to increase in scenarios with increasing amounts of area burnt during years dominated by mild weather. Climate change had counterintuitive effects on opportunistic fire suppression strategies. Climate warming increased the incidence of large fires under uncontrolled conditions but also indirectly increased opportunities for enhanced fire suppression. Therefore, to shift fire suppression opportunities from adverse to mild years, we would require a disproportionately large amount of area burnt in mild years. We conclude that the strategic planning of fire suppression resources has the potential to become an important cost-effective fuel-reduction strategy at large spatial scale. We do however suggest that this strategy should probably be accompanied by other fuel-reduction treatments applied at broad scales if large-scale changes in fire regimes are to be achieved, especially in the wider context of climate change.Adrián RegosNúria AquiluéJavier RetanaMiquel De CáceresLluís BrotonsPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 4, p e94906 (2014)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Adrián Regos
Núria Aquilué
Javier Retana
Miquel De Cáceres
Lluís Brotons
Using unplanned fires to help suppressing future large fires in Mediterranean forests.
description Despite the huge resources invested in fire suppression, the impact of wildfires has considerably increased across the Mediterranean region since the second half of the 20th century. Modulating fire suppression efforts in mild weather conditions is an appealing but hotly-debated strategy to use unplanned fires and associated fuel reduction to create opportunities for suppression of large fires in future adverse weather conditions. Using a spatially-explicit fire-succession model developed for Catalonia (Spain), we assessed this opportunistic policy by using two fire suppression strategies that reproduce how firefighters in extreme weather conditions exploit previous fire scars as firefighting opportunities. We designed scenarios by combining different levels of fire suppression efficiency and climatic severity for a 50-year period (2000-2050). An opportunistic fire suppression policy induced large-scale changes in fire regimes and decreased the area burnt under extreme climate conditions, but only accounted for up to 18-22% of the area to be burnt in reference scenarios. The area suppressed in adverse years tended to increase in scenarios with increasing amounts of area burnt during years dominated by mild weather. Climate change had counterintuitive effects on opportunistic fire suppression strategies. Climate warming increased the incidence of large fires under uncontrolled conditions but also indirectly increased opportunities for enhanced fire suppression. Therefore, to shift fire suppression opportunities from adverse to mild years, we would require a disproportionately large amount of area burnt in mild years. We conclude that the strategic planning of fire suppression resources has the potential to become an important cost-effective fuel-reduction strategy at large spatial scale. We do however suggest that this strategy should probably be accompanied by other fuel-reduction treatments applied at broad scales if large-scale changes in fire regimes are to be achieved, especially in the wider context of climate change.
format article
author Adrián Regos
Núria Aquilué
Javier Retana
Miquel De Cáceres
Lluís Brotons
author_facet Adrián Regos
Núria Aquilué
Javier Retana
Miquel De Cáceres
Lluís Brotons
author_sort Adrián Regos
title Using unplanned fires to help suppressing future large fires in Mediterranean forests.
title_short Using unplanned fires to help suppressing future large fires in Mediterranean forests.
title_full Using unplanned fires to help suppressing future large fires in Mediterranean forests.
title_fullStr Using unplanned fires to help suppressing future large fires in Mediterranean forests.
title_full_unstemmed Using unplanned fires to help suppressing future large fires in Mediterranean forests.
title_sort using unplanned fires to help suppressing future large fires in mediterranean forests.
publisher Public Library of Science (PLoS)
publishDate 2014
url https://doaj.org/article/c41054b2de32401fafd671b69bd8b8a3
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