Ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation

The city of La Plata, Argentina, is situated in a low alluvial zone, with streams having insufficient drainage into the Río de la Plata estuary. In April 2013, a prodigious storm front caused unprecedented flooding in the city and environs that resulted in extensive loss of life and property, especi...

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Autores principales: Armendáriz, Laura Cecilia, Cortese, Bianca, Rodríguez, Marianela, Rodrigues Capítulo, Alberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/77849
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id I19-R120-10915-77849
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Argentina
aquatic invertebrates
environmental integrity
biotic index
taxon richness
invertébrés aquatiques
intégrité environnementale
index biotique
richesse taxonomique
spellingShingle Ciencias Naturales
Argentina
aquatic invertebrates
environmental integrity
biotic index
taxon richness
invertébrés aquatiques
intégrité environnementale
index biotique
richesse taxonomique
Armendáriz, Laura Cecilia
Cortese, Bianca
Rodríguez, Marianela
Rodrigues Capítulo, Alberto
Ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation
topic_facet Ciencias Naturales
Argentina
aquatic invertebrates
environmental integrity
biotic index
taxon richness
invertébrés aquatiques
intégrité environnementale
index biotique
richesse taxonomique
description The city of La Plata, Argentina, is situated in a low alluvial zone, with streams having insufficient drainage into the Río de la Plata estuary. In April 2013, a prodigious storm front caused unprecedented flooding in the city and environs that resulted in extensive loss of life and property, especially in the Del Gato stream basin. Through an analysis of water quality and the conditions of the habitat on the basis of the macroinvertebrates present as bioindicators of environmental quality, this work aims to contribute to a reevaluation of the role of the marshes adjacent to the stream as flood-alleviation elements, and then propose alternatives for flooding management in the basin. Consequently, quantitative seasonal samples of vegetation, sediments, and benthic organic matter were taken and limnologic parameters measured in three sectors of the basin having different land uses: rural, periurban, and urban-industrial. The macroinvertebrate assemblages, as analyzed through the application of ecological indices, exhibited a marked decline in richness and in the Pampean Biotic Index towards the low-lying basin. Principalcomponents analysis associated Site 1 with the dissolved-oxygen concentration, Site 2 with high nitrate values, and Site 3 with oxygen demands. Redundancy analysis indicated a positive relationship between Baetidae and Aeolosomatidae with the dissolved-oxygen concentration and between Enchytraeidae and Stratiomyidae with the conductivity. These marshes are fundamental in maintaining good environmental conditions and attenuating the effects of the flooding that is predicted to become increasingly catastrophic in this region as the climate changes.
format Articulo
Articulo
author Armendáriz, Laura Cecilia
Cortese, Bianca
Rodríguez, Marianela
Rodrigues Capítulo, Alberto
author_facet Armendáriz, Laura Cecilia
Cortese, Bianca
Rodríguez, Marianela
Rodrigues Capítulo, Alberto
author_sort Armendáriz, Laura Cecilia
title Ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation
title_short Ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation
title_full Ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation
title_fullStr Ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation
title_full_unstemmed Ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation
title_sort ecosystem services of runoff marshes in urban lowland basins: proposals for their management and conservation
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/77849
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