Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences

Autores
Mundo, Ignacio Alberto; Kitzberger, Thomas; Roig Juñent, Fidel Alejandro; Villalba, Ricardo; Barrera, Marcelo Daniel
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Little is known about drivers and trends of historic fire regimes in the Araucaria araucana forests of south-western Argentina. Fire history in these forests was reconstructed by the analysis of 246 fire-scarred partial cross-sections from this fire-resistant tree collected at 10 sites in Neuquén, northern Patagonia. Fire chronologies showed an increase in fire occurrence during the nineteenth century and a sharp decrease since the early twentieth century. The creation of Lanín National Park in 1937, the change in human activities, and the active suppression of wildfires led to a significant increase in mean fire intervals since 1930. In addition to these multidecadal to centennial scale drives of fire frequency, interannual variability in wildfire activity was associated with El Niño-Southern Oscillation. Years of widespread fire are related to negative departures of both Niño 3.4 and Pacific Decadal Oscillation indexes (i.e. La Niña conditions), as well as coincident phases of positive Southern Annular Mode and La Niña events. Temporal variations in the Araucaria fire history in Argentina clearly show the combined effect of human and climate influences on fire regimes. A comparison with previous fire history studies in the Araucaria forests of Chile reveals substantial differences related to differences in human activities on both sides of the Andes and the earlier implementation of protected areas in Argentina.
Facultad de Ciencias Agrarias y Forestales
Laboratorio de Investigación de Sistemas Ecológicos y Ambientales
Materia
Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/101264
Acceder
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spelling Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influencesMundo, Ignacio AlbertoKitzberger, ThomasRoig Juñent, Fidel AlejandroVillalba, RicardoBarrera, Marcelo DanielCiencias AgrariasCiencias NaturalesDendroecologyFire scarsPatagoniaTree ringsLittle is known about drivers and trends of historic fire regimes in the <i>Araucaria araucana</i> forests of south-western Argentina. Fire history in these forests was reconstructed by the analysis of 246 fire-scarred partial cross-sections from this fire-resistant tree collected at 10 sites in Neuquén, northern Patagonia. Fire chronologies showed an increase in fire occurrence during the nineteenth century and a sharp decrease since the early twentieth century. The creation of Lanín National Park in 1937, the change in human activities, and the active suppression of wildfires led to a significant increase in mean fire intervals since 1930. In addition to these multidecadal to centennial scale drives of fire frequency, interannual variability in wildfire activity was associated with El Niño-Southern Oscillation. Years of widespread fire are related to negative departures of both Niño 3.4 and Pacific Decadal Oscillation indexes (i.e. La Niña conditions), as well as coincident phases of positive Southern Annular Mode and La Niña events. Temporal variations in the <i>Araucaria</i> fire history in Argentina clearly show the combined effect of human and climate influences on fire regimes. A comparison with previous fire history studies in the <i>Araucaria</i> forests of Chile reveals substantial differences related to differences in human activities on both sides of the Andes and the earlier implementation of protected areas in Argentina.Facultad de Ciencias Agrarias y ForestalesLaboratorio de Investigación de Sistemas Ecológicos y Ambientales2012-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf194-206http://sedici.unlp.edu.ar/handle/10915/101264enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/73180info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/wf/WF11164info:eu-repo/semantics/altIdentifier/issn/1049-8001info:eu-repo/semantics/altIdentifier/doi/10.1071/WF11164info:eu-repo/semantics/altIdentifier/hdl/11336/73180info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:01:45Zoai:sedici.unlp.edu.ar:10915/101264Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:01:46.277SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
title Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
spellingShingle Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
Mundo, Ignacio Alberto
Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
title_short Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
title_full Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
title_fullStr Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
title_full_unstemmed Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
title_sort Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
dc.creator.none.fl_str_mv Mundo, Ignacio Alberto
Kitzberger, Thomas
Roig Juñent, Fidel Alejandro
Villalba, Ricardo
Barrera, Marcelo Daniel
author Mundo, Ignacio Alberto
author_facet Mundo, Ignacio Alberto
Kitzberger, Thomas
Roig Juñent, Fidel Alejandro
Villalba, Ricardo
Barrera, Marcelo Daniel
author_role author
author2 Kitzberger, Thomas
Roig Juñent, Fidel Alejandro
Villalba, Ricardo
Barrera, Marcelo Daniel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
topic Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
dc.description.none.fl_txt_mv Little is known about drivers and trends of historic fire regimes in the <i>Araucaria araucana</i> forests of south-western Argentina. Fire history in these forests was reconstructed by the analysis of 246 fire-scarred partial cross-sections from this fire-resistant tree collected at 10 sites in Neuquén, northern Patagonia. Fire chronologies showed an increase in fire occurrence during the nineteenth century and a sharp decrease since the early twentieth century. The creation of Lanín National Park in 1937, the change in human activities, and the active suppression of wildfires led to a significant increase in mean fire intervals since 1930. In addition to these multidecadal to centennial scale drives of fire frequency, interannual variability in wildfire activity was associated with El Niño-Southern Oscillation. Years of widespread fire are related to negative departures of both Niño 3.4 and Pacific Decadal Oscillation indexes (i.e. La Niña conditions), as well as coincident phases of positive Southern Annular Mode and La Niña events. Temporal variations in the <i>Araucaria</i> fire history in Argentina clearly show the combined effect of human and climate influences on fire regimes. A comparison with previous fire history studies in the <i>Araucaria</i> forests of Chile reveals substantial differences related to differences in human activities on both sides of the Andes and the earlier implementation of protected areas in Argentina.
Facultad de Ciencias Agrarias y Forestales
Laboratorio de Investigación de Sistemas Ecológicos y Ambientales
description Little is known about drivers and trends of historic fire regimes in the <i>Araucaria araucana</i> forests of south-western Argentina. Fire history in these forests was reconstructed by the analysis of 246 fire-scarred partial cross-sections from this fire-resistant tree collected at 10 sites in Neuquén, northern Patagonia. Fire chronologies showed an increase in fire occurrence during the nineteenth century and a sharp decrease since the early twentieth century. The creation of Lanín National Park in 1937, the change in human activities, and the active suppression of wildfires led to a significant increase in mean fire intervals since 1930. In addition to these multidecadal to centennial scale drives of fire frequency, interannual variability in wildfire activity was associated with El Niño-Southern Oscillation. Years of widespread fire are related to negative departures of both Niño 3.4 and Pacific Decadal Oscillation indexes (i.e. La Niña conditions), as well as coincident phases of positive Southern Annular Mode and La Niña events. Temporal variations in the <i>Araucaria</i> fire history in Argentina clearly show the combined effect of human and climate influences on fire regimes. A comparison with previous fire history studies in the <i>Araucaria</i> forests of Chile reveals substantial differences related to differences in human activities on both sides of the Andes and the earlier implementation of protected areas in Argentina.
publishDate 2012
dc.date.none.fl_str_mv 2012-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/101264
url http://sedici.unlp.edu.ar/handle/10915/101264
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/73180
info:eu-repo/semantics/altIdentifier/url/http://www.publish.csiro.au/wf/WF11164
info:eu-repo/semantics/altIdentifier/issn/1049-8001
info:eu-repo/semantics/altIdentifier/doi/10.1071/WF11164
info:eu-repo/semantics/altIdentifier/hdl/11336/73180
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
194-206
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instname:Universidad Nacional de La Plata
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reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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