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Abstract:

During 2008, under a region-wide drought, there were a large number of simultaneous fires in the Paraná River Delta region: the most affected vegetation was in marshes dominated by Schoenoplectus californicus (C.A.Mey.) Soják or Cyperus giganteus Vahl. The objective of this paper was to study fire severity in terms of fire effect on vegetation cover and soil properties, and the recovery of those properties after one growing season, using optical remote sensing techniques and fieldwork data. To this aim, we performed unsupervised classification of Landsat TM imagery and conducted vegetation censuses and soil sampling in November 2008 and May 2009. Our results show that we could identify three fire severity classes: low severity, medium severity, and high severity. These classes are characterized by a remnant vegetation cover of approximately 75 %, 25 %, and 5 %, respectively, and a diminution of soil organic carbon and nitrogen of 66 % and 59 % in the case of medium severity and high severity. Fire had almost no effect over pH and a slight effect on electrical conductivity. After one growing season, vegetation recovery is dependent on fire severity and hydrological condition, while soil properties did not show signs of recovery. This is one of the first studies of fire effects and recovery on fluvial herbaceous wetlands.

Registro:

Documento: Artículo
Título:Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina
Autor:Salvia, M.; Ceballos, D.; Grings, F.; Karszenbaum, H.; Kandus, P.
Filiación:Instituto de Astronomía y Física del Espacio, Pabellón IAFE, Ciudad Universitaria, Intendente Guiraldes 2160, (1428) Ciudad Autónoma de Buenos Aires, Argentina
Estación Experimental Agropecuaria Delta del Paraná, Instituto Nacional de Tecnología Agropecuaria, Paraná de las Palmas y C. L. Comas, Casilla de Correo 14, Campana (2804), Provincia de Buenos Aires, Argentina
Laboratorio de Ecología Teledetección y Ecoinformática, Instituto de Investigaciones e Ingeniería Ambiental, Universidad Nacional de General San Martín, Peatonal Belgrano 3563, (1650) San Martín, Provincia de Buenos Aires, Argentina
Palabras clave:Cyperus giganteus; Fire severity; Fluvial wetlands; Optical remote sensing; Paraná River Delta; Post-fire recovery; Schoenoplectus californicus; Soil properties; Vegetation cover; angiosperm; dominance; drought; environmental impact; fire; land classification; Landsat thematic mapper; landscape structure; marsh; remote sensing; soil property; vegetation cover; wetland; Argentina; Parana Delta; Parana River; Cyperus; Cyperus giganteus; Schoenoplectus californicus
Año:2012
Volumen:8
Número:2
Página de inicio:17
Página de fin:37
DOI: http://dx.doi.org/10.4996/fireecology.0802017
Título revista:Fire Ecology
Título revista abreviado:Fire Ecol.
ISSN:19339747
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19339747_v8_n2_p17_Salvia

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Citas:

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Salvia, M., Ceballos, D., Grings, F., Karszenbaum, H. & Kandus, P. (2012) . Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina. Fire Ecology, 8(2), 17-37.
http://dx.doi.org/10.4996/fireecology.0802017
---------- CHICAGO ----------
Salvia, M., Ceballos, D., Grings, F., Karszenbaum, H., Kandus, P. "Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina" . Fire Ecology 8, no. 2 (2012) : 17-37.
http://dx.doi.org/10.4996/fireecology.0802017
---------- MLA ----------
Salvia, M., Ceballos, D., Grings, F., Karszenbaum, H., Kandus, P. "Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina" . Fire Ecology, vol. 8, no. 2, 2012, pp. 17-37.
http://dx.doi.org/10.4996/fireecology.0802017
---------- VANCOUVER ----------
Salvia, M., Ceballos, D., Grings, F., Karszenbaum, H., Kandus, P. Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina. Fire Ecol. 2012;8(2):17-37.
http://dx.doi.org/10.4996/fireecology.0802017