Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina
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 s...
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2012
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19339747_v8_n2_p17_Salvia http://hdl.handle.net/20.500.12110/paper_19339747_v8_n2_p17_Salvia |
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paper:paper_19339747_v8_n2_p17_Salvia2023-06-08T16:31:47Z Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina 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 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. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19339747_v8_n2_p17_Salvia http://hdl.handle.net/20.500.12110/paper_19339747_v8_n2_p17_Salvia |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina |
| topic_facet |
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 |
| description |
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. |
| title |
Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina |
| title_short |
Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina |
| title_full |
Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina |
| title_fullStr |
Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina |
| title_full_unstemmed |
Post-fire effects in wetland environments: Landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, Argentina |
| title_sort |
post-fire effects in wetland environments: landscape assessment of plant coverage and soil recovery in the paraná river delta marshes, argentina |
| publishDate |
2012 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19339747_v8_n2_p17_Salvia http://hdl.handle.net/20.500.12110/paper_19339747_v8_n2_p17_Salvia |
| _version_ |
1768546650436927488 |