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

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...

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Autores principales: Mundo, Ignacio Alberto, Kitzberger, Thomas, Roig Juñent, Fidel Alejandro, Villalba, Ricardo, Barrera, Marcelo Daniel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/101264
https://ri.conicet.gov.ar/11336/73180
http://www.publish.csiro.au/wf/WF11164
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-101264
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
spellingShingle Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
Mundo, Ignacio Alberto
Kitzberger, Thomas
Roig Juñent, Fidel Alejandro
Villalba, Ricardo
Barrera, Marcelo Daniel
Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
topic_facet Ciencias Agrarias
Ciencias Naturales
Dendroecology
Fire scars
Patagonia
Tree rings
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.
format Articulo
Articulo
author Mundo, Ignacio Alberto
Kitzberger, Thomas
Roig Juñent, Fidel Alejandro
Villalba, Ricardo
Barrera, Marcelo Daniel
author_facet Mundo, Ignacio Alberto
Kitzberger, Thomas
Roig Juñent, Fidel Alejandro
Villalba, Ricardo
Barrera, Marcelo Daniel
author_sort Mundo, Ignacio Alberto
title Fire history in the <i>Araucaria araucana</i> forests of Argentina: human and climate influences
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
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/101264
https://ri.conicet.gov.ar/11336/73180
http://www.publish.csiro.au/wf/WF11164
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