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Article . 2011
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Recomendaciones de restauración para las márgenes ribereñas de una cuenca urbana

Authors: Melignani, Eliana; Faggi, Ana Maria;

Recomendaciones de restauración para las márgenes ribereñas de una cuenca urbana

Abstract

El 30 % de la población argentina vive en el área metropolitana, donde la falta de planificación sumada a un uso descuidado del ambiente impacta severamente los cursos de agua. Un río muy representativo de esta situación es el río Matanza Riachuelo. Reclamos de la sociedad civil han impulsado a las autoridades a tomar medidas al respecto. Según los últimos informes de gestión de ACUMAR, se continúa con las tareas de limpieza, desmalezado y forestación de las márgenes a cargo de AySA. Son conocidas las ventajas de las plantaciones de árboles, como la protección costera, el secuestro de carbono y la provisión de una variedad de hábitats para la fauna. Sin embargo, la forestación sobre la línea de ribera puede ocasionar erosión dada la caída ocasional de ejemplares, dejando huecos profundos. A esta desventaja se suma el hecho de que las tareas de limpieza y desmalezado de las márgenes incluyen el corte de césped y de la mayoría de la vegetación helófita dejando amplios parches de suelo desnudo. Estos parches no sólo favorecen la acumulación clandestina de basura, sino que disminuyen la capacidad de filtración y depuración del agua y del suelo que proveen las plantas herbáceas, además de propiciar la invasión de especies exóticas en las márgenes. ¿Son entonces adecuadas las medidas actuales de limpieza y restauración de márgenes? Como alternativa se propone la conservación de la vegetación ribereña nativa, y la implantación de herbáceas nativas en aquellos sitios degradados, de manera de favorecer la biorremediación y conservación del suelo, agua y sedimentos.

The 30 per cent of the Argentinean population live in the metropolitan area, where the lack of planning and the neglecting care of the ambient impact severely over the water courses. A very representative river of this situation is the Matanza Riachuelo. Civil society claimed and the authorities took care about it- According to the last management reports of ACUMAR, the cleaning activities are still going on. The advantages of tree plantations are well known, such as the coast protection, the carbon took and the provision of a habitat variety for fauna. However, the forestation over the bank line might produce erosion for the occasional fall of trees, leaving deep holes. And what is more, the fact that cleaning activities and weeding of the margins include the cut of grass and most of the helophytic vegetation, big spaces of naked ground are left. These spaces favor the accumulation of garbage and shorten the capacity of filtration and depuration of water and ground. Then, are the current cleaning measures and margin restoration accurate? As an alternative, we propose the conservation of the native river vegetation and the implantation of native herbaceous on the degraded spaces, favoring the bioremediation and the conservation of ground, water and sediments.

Fil: Melignani, Eliana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina

Fil: Faggi, Ana Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”; Argentina

Country
Argentina
Keywords

Cuenca urbana, https://purl.org/becyt/ford/1.5, Márgenes ribereños, Recomendación, Restauración, https://purl.org/becyt/ford/1

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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