Running water atenuation by Tessaria integrifolia RIVERINE FORESTS

The flow interference effect of the Tessaria integrifolia forest intwo islands of the Paraná River, located dounstream of the Paraná-Paraguay rivers confluence, was studied. Current velocity, suspended sediments, channel depth, water transparency, tree density, tallness and coverage, were measured i...

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Autores principales: Depettris, Carlos, Orfeo, Oscar, Neiff, Juan J.
Formato: Artículo revista
Lenguaje:Español
Publicado: Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2023
Acceso en línea:https://revistas.unne.edu.ar/index.php/sub/article/view/7151
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Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-7151
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spelling I48-R154-article-71512023-12-06T12:42:02Z Running water atenuation by Tessaria integrifolia RIVERINE FORESTS Atenuación del escurrimiento fluvial por bosques de Tessaria Depettris, Carlos Orfeo, Oscar Neiff, Juan J. The flow interference effect of the Tessaria integrifolia forest intwo islands of the Paraná River, located dounstream of the Paraná-Paraguay rivers confluence, was studied. Current velocity, suspended sediments, channel depth, water transparency, tree density, tallness and coverage, were measured in cross sections of the stream. The atenuation of the running water by trees can be assumed as a "biological roughness" of the vegetation. It produce a strong decrease in the grain-size distribution of the islands superficial sediments as concequence of the flow interference. In central areas of the islands occuped by forest with 20-30 ind/m*, current velocity was 10 times lower than similar (depth, slope) Coastal sites without vegetation, while the suspended load resulted lesser than the half. The erodability coefficient decrease proportionally to the square of the current velocity diminishing. Owing to the forest extensión and coverage in rivers of the De la Plata basin, it is advisable to consider their effect during flood periods. The flow interference effect of the Tessaria integrifolia forest intwo islands of the Paraná River, located dounstream of the Paraná-Paraguay rivers confluence, was studied. Current velocity, suspended sediments, channel depth, water transparency, tree density, tallness and coverage, were measured in cross sections of the stream. The atenuation of the running water by trees can be assumed as a "biological roughness" of the vegetation. It produce a strong decrease in the grain-size distribution of the islands superficial sediments as concequence of the flow interference. In central areas of the islands occuped by forest with 20-30 ind/m*, current velocity was 10 times lower than similar (depth, slope) Coastal sites without vegetation, while the suspended load resulted lesser than the half. The erodability coefficient decrease proportionally to the square of the current velocity diminishing. Owing to the forest extensión and coverage in rivers of the De la Plata basin, it is advisable to consider their effect during flood periods. Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) 2023-12-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/pdf https://revistas.unne.edu.ar/index.php/sub/article/view/7151 Ambiente Subtropical; Núm. 2 (1992): PROCESOS ECOLOGICOS EN LA CUENCA DEL PLATA; 33-43 spa https://revistas.unne.edu.ar/index.php/sub/article/view/7151/6595
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
author Depettris, Carlos
Orfeo, Oscar
Neiff, Juan J.
spellingShingle Depettris, Carlos
Orfeo, Oscar
Neiff, Juan J.
Running water atenuation by Tessaria integrifolia RIVERINE FORESTS
author_facet Depettris, Carlos
Orfeo, Oscar
Neiff, Juan J.
author_sort Depettris, Carlos
title Running water atenuation by Tessaria integrifolia RIVERINE FORESTS
title_short Running water atenuation by Tessaria integrifolia RIVERINE FORESTS
title_full Running water atenuation by Tessaria integrifolia RIVERINE FORESTS
title_fullStr Running water atenuation by Tessaria integrifolia RIVERINE FORESTS
title_full_unstemmed Running water atenuation by Tessaria integrifolia RIVERINE FORESTS
title_sort running water atenuation by tessaria integrifolia riverine forests
description The flow interference effect of the Tessaria integrifolia forest intwo islands of the Paraná River, located dounstream of the Paraná-Paraguay rivers confluence, was studied. Current velocity, suspended sediments, channel depth, water transparency, tree density, tallness and coverage, were measured in cross sections of the stream. The atenuation of the running water by trees can be assumed as a "biological roughness" of the vegetation. It produce a strong decrease in the grain-size distribution of the islands superficial sediments as concequence of the flow interference. In central areas of the islands occuped by forest with 20-30 ind/m*, current velocity was 10 times lower than similar (depth, slope) Coastal sites without vegetation, while the suspended load resulted lesser than the half. The erodability coefficient decrease proportionally to the square of the current velocity diminishing. Owing to the forest extensión and coverage in rivers of the De la Plata basin, it is advisable to consider their effect during flood periods.
publisher Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
publishDate 2023
url https://revistas.unne.edu.ar/index.php/sub/article/view/7151
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first_indexed 2024-08-21T22:39:00Z
last_indexed 2024-08-21T22:39:00Z
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