Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires

Buenos Aires, the most largest and populated city of Argentina is emplaced on the southeast coast of the Rio de la Plata shared waters estuary. The present coastline is the result of several anthropogenic works that have induced the coastal progradation by artificial filling since 1836, developing n...

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Publicado: 2004
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Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n2_p261_Marcomini
http://hdl.handle.net/20.500.12110/paper_00044822_v59_n2_p261_Marcomini
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spelling paper:paper_00044822_v59_n2_p261_Marcomini2023-06-08T14:25:45Z Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires Man induced coastal ecosystems Management Rio de la Plata estuary anthropogenic effect coastal morphology ecosystem management estuary levee littoral environment Argentina Buenos Aires [Federal District] Federal District [Argentina] South America Western Hemisphere World Buenos Aires, the most largest and populated city of Argentina is emplaced on the southeast coast of the Rio de la Plata shared waters estuary. The present coastline is the result of several anthropogenic works that have induced the coastal progradation by artificial filling since 1836, developing new coastal ecosystems. The main objective of the Buenos Aires coastal planning has always been to gain land to the estuary waters as an expansive policy. It was estimated an artificial nourishment of about 12,67 hectares per year during the last 162 years with a coastal progradation between 400 to 1,000 m. This paper focuses on a new planing and management of the coast, considering the configuration of the filling levee and the generation of new ecosystems associated with different levee designs. The coastal evolution associated with four types of man-made levee was analysed during the last 40 years. The types of levees configuration described were bay, cape, spit and barrier design. The bay type induced the accumulation of coastal plains in the middle of the bay. The cape type induced lakes and ponds isolated from the estuary hydrodynamics that trend to be filled by vegetation. The barrier and spit types provoked the coastal plain progradation and the formation of an artificial lagoon dominated by tides with freshwater marshes and tidal flat ecosystems. The artificial coastal progradation of the estuary generated these new ecosystems associated as that should be predicted considering the definitive configuration of the artificial levee. This new ecosystem should be carefully assessed managed and considered by government agencies in the planification of the future coastline configuration of the city. This work should provide to decision makers of the city with appropriate conclusions, recommendations and proposals in order to give an outline for immediate, medium and long term action in the framework of a coastal management plan. It also remarks the importance of taking into account in the planning process the relation between the artificial design of the coastline and the natural systems processes. © 2004 Asociación Geológica Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n2_p261_Marcomini http://hdl.handle.net/20.500.12110/paper_00044822_v59_n2_p261_Marcomini
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Man induced coastal ecosystems
Management
Rio de la Plata estuary
anthropogenic effect
coastal morphology
ecosystem management
estuary
levee
littoral environment
Argentina
Buenos Aires [Federal District]
Federal District [Argentina]
South America
Western Hemisphere
World
spellingShingle Man induced coastal ecosystems
Management
Rio de la Plata estuary
anthropogenic effect
coastal morphology
ecosystem management
estuary
levee
littoral environment
Argentina
Buenos Aires [Federal District]
Federal District [Argentina]
South America
Western Hemisphere
World
Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires
topic_facet Man induced coastal ecosystems
Management
Rio de la Plata estuary
anthropogenic effect
coastal morphology
ecosystem management
estuary
levee
littoral environment
Argentina
Buenos Aires [Federal District]
Federal District [Argentina]
South America
Western Hemisphere
World
description Buenos Aires, the most largest and populated city of Argentina is emplaced on the southeast coast of the Rio de la Plata shared waters estuary. The present coastline is the result of several anthropogenic works that have induced the coastal progradation by artificial filling since 1836, developing new coastal ecosystems. The main objective of the Buenos Aires coastal planning has always been to gain land to the estuary waters as an expansive policy. It was estimated an artificial nourishment of about 12,67 hectares per year during the last 162 years with a coastal progradation between 400 to 1,000 m. This paper focuses on a new planing and management of the coast, considering the configuration of the filling levee and the generation of new ecosystems associated with different levee designs. The coastal evolution associated with four types of man-made levee was analysed during the last 40 years. The types of levees configuration described were bay, cape, spit and barrier design. The bay type induced the accumulation of coastal plains in the middle of the bay. The cape type induced lakes and ponds isolated from the estuary hydrodynamics that trend to be filled by vegetation. The barrier and spit types provoked the coastal plain progradation and the formation of an artificial lagoon dominated by tides with freshwater marshes and tidal flat ecosystems. The artificial coastal progradation of the estuary generated these new ecosystems associated as that should be predicted considering the definitive configuration of the artificial levee. This new ecosystem should be carefully assessed managed and considered by government agencies in the planification of the future coastline configuration of the city. This work should provide to decision makers of the city with appropriate conclusions, recommendations and proposals in order to give an outline for immediate, medium and long term action in the framework of a coastal management plan. It also remarks the importance of taking into account in the planning process the relation between the artificial design of the coastline and the natural systems processes. © 2004 Asociación Geológica Argentina.
title Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires
title_short Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires
title_full Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires
title_fullStr Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires
title_full_unstemmed Generation of new littoral ecosystems by levee filling in the coast of the city of Buenos Aires
title_sort generation of new littoral ecosystems by levee filling in the coast of the city of buenos aires
publishDate 2004
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v59_n2_p261_Marcomini
http://hdl.handle.net/20.500.12110/paper_00044822_v59_n2_p261_Marcomini
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