Publicação
The effectiveness of past wildfire at limiting reburning is short-lived in a Mediterranean humid climate
| datacite.subject.fos | Ciências Agrárias::Agricultura, Silvicultura e Pescas | |
| datacite.subject.fos | Ciências Naturais::Ciências da Terra e do Ambiente | |
| datacite.subject.sdg | 03:Saúde de Qualidade | |
| datacite.subject.sdg | 07:Energias Renováveis e Acessíveis | |
| datacite.subject.sdg | 11:Cidades e Comunidades Sustentáveis | |
| dc.contributor.author | Davim, David A. | |
| dc.contributor.author | Rossa, Carlos G. | |
| dc.contributor.author | Pereira, José M. C. | |
| dc.contributor.author | Guiomar, Nuno | |
| dc.contributor.author | Fernandes, Paulo M. | |
| dc.date.accessioned | 2026-10-07T15:35:08Z | |
| dc.date.available | 2026-10-07T15:35:08Z | |
| dc.date.issued | 2023-10-31 | |
| dc.description.abstract | Background: The study of wildfire interactions (i.e., spread limitation and reburns) is gaining traction as a means of describing the self-limiting process of fire spread in the landscape and has important management implications but has scarcely been attempted in Europe. We examined to what extent previously burned areas restricted the development of individual large wildfires (> 500 ha) in mainland Portugal. Results: For the 1984–2021 period, we (1) modeled the proportion of large wildfire perimeters coinciding with transitions to shorter time since fire (TSF), i.e., locations where fire spread ceased upon encountering assumedly less flammable fuels, and (2) characterized the prevalence of different TSF in the composition of the area burned by large wildfires in relation to available TSF. Only 4% of the large wildfires did not comprise edges intersecting past wildfires. Low TSF (especially up to 8 years) resulted in large-wildfire perimeter limitation at TSF transitions. This effect was further enhanced by high historical burn probability and proximity to roadways and watercourses. Perimeter limitation did also increase under high (but not very high or extreme) fire danger, benefiting from maximum seasonal firefighting preparedness. TSF prevalence in the composition of large-wildfire area was extremely variable and thus an overall weak pattern emerged, with minimum and maximum prevalence respectively at TSF < 2 years and TSF ≥ 6 years. Conclusions: Large wildfire limitation in Portugal is hampered by fast fuel build-up after fire, indicating a short-lived fire-hazard reduction effect under the prevailing Mediterranean humid climate of the study region. Nonetheless, such effect should be considered when planning fuel-reduction treatments and can be used opportunistically during large-wildfire suppression operations. | eng |
| dc.description.abstract | Antecedentes El estudio de las interacciones de incendios forestales (es decir, limitación de propagación y requemado) está cobrando relevancia como una forma de describir los procesos de autorregulación en la propagación de incendios en el paisaje, y tiene importantes implicaciones de gestión. Sin embargo, apenas se ha intentado en Europa. Examinamos hasta qué punto las áreas previamente quemadas restringieron el desarrollo de incendios grandes (> 500 ha) en Portugal continental. Resultados Para el período de 1984 a 2021, (1) modelamos la proporción de perímetros de incendios grandes que coincidieron con transiciones a un menor tiempo desde el último incendio (TSF), es decir, lugares donde la propagación del fuego cesó al encontrarse con combustibles presumiblemente menos inflamables, y (2) caracterizamos la prevalencia de diferentes valores de TSF en la composición del área quemada por incendios grandes en relación con los valores de TSF disponibles. Solo el 4% de los incendios grandes no incluyeron bordes que se cruzaran con incendios anteriores. Un TSF bajo (especialmente hasta 8 años) resultó en la limitación del perímetro de incendios grandes en las transiciones de TSF. Este efecto se vio amplificado por una alta probabilidad histórica de incendios y la proximidad a rutas y cursos de agua. La limitación del perímetro también aumentó en condiciones de alto riesgo meteorológico de incendio (pero no muy alto o extremo), beneficiándose de la máxima preparación estacional para la lucha contra incendios. La prevalencia de diferentes valores de TSF en la composición del área de incendios grandes fue extremadamente variable y, por lo tanto, se obtuvo un patrón general débil, con una prevalencia mínima y máxima, respectivamente, en TSF. Conclusiones La limitación de incendios grandes en Portugal se ve obstaculizada por la rápida acumulación de combustible después de un incendio, lo que indica un efecto de reducción de riesgo de incendio de corta duración bajo el clima mediterráneo húmedo predominante en la región de estudio. Sin embargo, este efecto debe considerarse al planificar tratamientos de reducción de combustibles y puede aprovecharse oportunamente durante las operaciones de supresión de incendios grandes. | spa |
| dc.description.sponsorship | Acknowledgements Thanks are due to M.M. Pinto who provided part of the historical fire danger rating data. We thank the editor and reviewers for their comments, which helped us in improving the quality of the manuscript. Funding This study was carried out in the framework of Forest Research Centre (CEF), Lisbon, Portugal (UIDB/00239/2020), and Centre for the Research and Technology of Agro-environmental and Biological Sciences (CITAB), Vila Real, Portugal (UIDB/04033/2020), funded by Portuguese National Funds through FCT—Foundation for Science and Technology. The first author received support from FCT through Ph.D. Grant PD/BD/142961/2018, funded by the Ministry of Science, Technology and Higher Education, and by the European Social Fund – Operational Program Human Capital within the 2014–2020 EU Strategic Framework and also through doctoral program SUSFOR (PD/00157/2012). JMCP participation was partially supported by research project FIRE-MODSAT II (PTDC/ASP- SIL/28771/2017). NG was funded by the European Union through the European Regional Development Fund in the framework of the Interreg V-A Spain-Portugal program (POCTEP) under the CILIFO (Ref. 0753_CILIFO_5_E) and FIREPOCTEP (Ref. 0756_FIREPOCTEP_6_E) projects and by National Funds through FCT under the Project UIDB/05183/2020. | |
| dc.identifier.citation | Davim, D.A., Rossa, C.G., Pereira, J.M.C. et al. The effectiveness of past wildfire at limiting reburning is short-lived in a Mediterranean humid climate. fire ecol 19, 66 (2023). https://doi.org/10.1186/s42408-023-00227-x. | |
| dc.identifier.doi | 10.1186/s42408-023-00227-x | |
| dc.identifier.eissn | 1933-9747 | |
| dc.identifier.uri | http://hdl.handle.net/10400.8/16987 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | Springer Science and Business Media LLC | |
| dc.relation | Centre for the Research and Technology of Agro-Environmental and Biological Sciences | |
| dc.relation.hasversion | https://link.springer.com/article/10.1186/s42408-023-00227-x | |
| dc.relation.ispartof | Fire Ecology | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Fire-on-fire interaction | |
| dc.subject | Fire regime | |
| dc.subject | Fuel management | |
| dc.subject | Large wildfire | |
| dc.subject | Portugal | |
| dc.subject | Shrubland | |
| dc.subject | Time since fire | |
| dc.title | The effectiveness of past wildfire at limiting reburning is short-lived in a Mediterranean humid climate | eng |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardNumber | UIDB/04033/2020 | |
| oaire.awardTitle | Centre for the Research and Technology of Agro-Environmental and Biological Sciences | |
| oaire.awardURI | http://hdl.handle.net/10400.8/15689 | |
| oaire.citation.endPage | 15 | |
| oaire.citation.issue | 66 | |
| oaire.citation.startPage | 1 | |
| oaire.citation.title | Fire Ecology | |
| oaire.citation.volume | 19 | |
| oaire.fundingStream | Concurso de avaliação no âmbito do Programa Plurianual de Financiamento de Unidades de I&D (2017/2018) - Financiamento Base | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Rossa | |
| person.givenName | Carlos | |
| person.identifier.orcid | 0000-0002-6308-4235 | |
| person.identifier.scopus-author-id | 26023715100 | |
| relation.isAuthorOfPublication | bee3d06e-a7d7-4cb3-b58f-3baaff61f9f3 | |
| relation.isAuthorOfPublication.latestForDiscovery | bee3d06e-a7d7-4cb3-b58f-3baaff61f9f3 | |
| relation.isProjectOfPublication | 1ec1d5de-0179-45c5-8e0e-a1f1c931d975 | |
| relation.isProjectOfPublication.latestForDiscovery | 1ec1d5de-0179-45c5-8e0e-a1f1c931d975 |
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- Background: The study of wildfire interactions (i.e., spread limitation and reburns) is gaining traction as a means of describing the self-limiting process of fire spread in the landscape and has important management implications but has scarcely been attempted in Europe. We examined to what extent previously burned areas restricted the development of individual large wildfires (> 500 ha) in mainland Portugal. Results: For the 1984–2021 period, we (1) modeled the proportion of large wildfire perimeters coinciding with transitions to shorter time since fire (TSF), i.e., locations where fire spread ceased upon encountering assumedly less flammable fuels, and (2) characterized the prevalence of different TSF in the composition of the area burned by large wildfires in relation to available TSF. Only 4% of the large wildfires did not comprise edges intersecting past wildfires. Low TSF (especially up to 8 years) resulted in large-wildfire perimeter limitation at TSF transitions. This effect was further enhanced by high historical burn probability and proximity to roadways and watercourses. Perimeter limitation did also increase under high (but not very high or extreme) fire danger, benefiting from maximum seasonal firefighting preparedness. TSF prevalence in the composition of large-wildfire area was extremely variable and thus an overall weak pattern emerged, with minimum and maximum prevalence respectively at TSF < 2 years and TSF ≥ 6 years. Conclusions: Large wildfire limitation in Portugal is hampered by fast fuel build-up after fire, indicating a short-lived fire-hazard reduction effect under the prevailing Mediterranean humid climate of the study region. Nonetheless, such effect should be considered when planning fuel-reduction treatments and can be used opportunistically during large-wildfire suppression operations.
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