Artículo

Di Bella, C.M.; Jobbágy, E.G.; Paruelo, J.M.; Pinnock, S. "Continental fire density patterns in South America" (2006) Global Ecology and Biogeography. 15(2):192-199
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Abstract:

Aims: Quantification of the effects and interactions of natural and anthropogenic factors, including climate, canopy structure, land use and management conditions, on vegetation burning. The study of these relationships is fundamental to predict regional fire patterns and develop sound management and regulation policies for biomass burning at national and global levels. Location: Southern South America, including Argentina, Brazil, Paraguay, Uruguay, Bolivia and Chile. Methods: Based on National Oceanic and Atmosphere Administration-Advance Very High Resolution Radiometer (NOAA-AVHRR) satellite images, we identified fires in southern South America with a daily frequency for two periods (1999/2000 and 2000/01) using a contextual fire detection algorithm and integrating the density of these fires at a monthly scale into a 0.5 x 0.5° grid. We combined vegetation and climate global databases and land use information from national census data to explore the relationship of these factors with fires across the region. Results: The whole study region had a mean fire density of 0.10 and 0.05 fires km-2 year-1 in 1999/2000 and 2000/01, respectively, with extreme values as high as 1.37 in fires km-2 year-1 in Para State, Brazil. Water deficit estimates, derived from a climatic water balance, showed the better correlation with fire density (r = 0.28; P < 0.001; n = 4467), interacting strongly with land use. In areas with low agricultural use fire density increased with water deficit, whereas in highly agricultural areas this relationship was not observed. Agriculture significantly reduced fire density in prairies and savannas but increased its frequency in rain forests. Main conclusions: These results suggest that agriculture prevents biomass burning in semiarid areas but enhances it in humid environments, where biomass accumulates at faster rates. © 2006 Blackwell Publishing Ltd.

Registro:

Documento: Artículo
Título:Continental fire density patterns in South America
Autor:Di Bella, C.M.; Jobbágy, E.G.; Paruelo, J.M.; Pinnock, S.
Filiación:Instituto de Clima y Agua, Instituto Nacional de Tecnología Agropecuaria (INTA), Los Reseros y Las Cabañas S/N, 1712 Casterlar Buenos Aires, Argentina
Grupo de Estudios Ambientales, IMASL-CONICET, Universidad Nacional de San Luis Ejército de los Andes 950, 5700 San Luis, Argentina
Laboratorio de Análisis Regional y Teledetección, Departamento de Recursos Naturales y Ambiente, Universidad de Buenos Aires y CONICET, Avenida San Martín 4453, Ciudad Autonoma de Buenos Aires, Argentina
European Space Agency, Via Galileo Galilei, 00044 Frascati, Italy
Palabras clave:Agricultural fires; Fire occurrence; Land cover changes; NOAA/AVHRR; Remote sensing; Water deficit; agricultural land; fire; land cover; remote sensing; South America
Año:2006
Volumen:15
Número:2
Página de inicio:192
Página de fin:199
DOI: http://dx.doi.org/10.1111/j.1466-822X.2006.00225.x
Título revista:Global Ecology and Biogeography
Título revista abreviado:Global Ecol. Biogeogr.
ISSN:1466822X
CODEN:GEBIF
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_1466822X_v15_n2_p192_DiBella

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Citas:

---------- APA ----------
Di Bella, C.M., Jobbágy, E.G., Paruelo, J.M. & Pinnock, S. (2006) . Continental fire density patterns in South America. Global Ecology and Biogeography, 15(2), 192-199.
http://dx.doi.org/10.1111/j.1466-822X.2006.00225.x
---------- CHICAGO ----------
Di Bella, C.M., Jobbágy, E.G., Paruelo, J.M., Pinnock, S. "Continental fire density patterns in South America" . Global Ecology and Biogeography 15, no. 2 (2006) : 192-199.
http://dx.doi.org/10.1111/j.1466-822X.2006.00225.x
---------- MLA ----------
Di Bella, C.M., Jobbágy, E.G., Paruelo, J.M., Pinnock, S. "Continental fire density patterns in South America" . Global Ecology and Biogeography, vol. 15, no. 2, 2006, pp. 192-199.
http://dx.doi.org/10.1111/j.1466-822X.2006.00225.x
---------- VANCOUVER ----------
Di Bella, C.M., Jobbágy, E.G., Paruelo, J.M., Pinnock, S. Continental fire density patterns in South America. Global Ecol. Biogeogr. 2006;15(2):192-199.
http://dx.doi.org/10.1111/j.1466-822X.2006.00225.x