Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina

The Yacyretá dam is one of the most important hydroelectric projects in La Plata Basin.As a consequence of the filling of the reservoir to its final height of 83 meters; approximately 1;076 km2 of terrestrial and riparian ecosystems were flooded in Argentina and Paraguay. In order to evaluate the ec...

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Autores principales: Bauni, Valeria, Schivo, Facundo, Capmourteres, Virginia, Homberg, Marina
Formato: publishedVersion Artículo
Lenguaje:Inglés
Publicado: Elsevier B.V. 2015
Materias:
RESERVOIR CREATION
LAND USE AND LAND COVER CHANGE
GIS ANALYSIS
INGENIERÍAS Y TECNOLOGÍAS
Acceso en línea:https://ri.unsam.edu.ar/handle/123456789/1001
Aporte de:
Repositorio Institucional de la UNSAM de Universidad Nacional de General San Martín
id I78-R216-123456789-1001
record_format dspace
spelling I78-R216-123456789-10012023-03-27T20:19:35Z Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina Bauni, Valeria Schivo, Facundo Capmourteres, Virginia Homberg, Marina RESERVOIR CREATION LAND USE AND LAND COVER CHANGE GIS ANALYSIS INGENIERÍAS Y TECNOLOGÍAS info:eu-repo/semantics/publishedVersion The Yacyretá dam is one of the most important hydroelectric projects in La Plata Basin.As a consequence of the filling of the reservoir to its final height of 83 meters; approximately 1;076 km2 of terrestrial and riparian ecosystems were flooded in Argentina and Paraguay. In order to evaluate the ecosystems loss due to this impounding; we generated two maps of land use/land cover from Landsat satellite images: 1987 (prior to the dam) and 2011 (after the final height was reached). We applied a post classification method and tested the gain; loss; and net change of natural and anthropic ecosystems in the study area with a cross tabulation matrix. Water bodies were the land cover type that showed the greatest degree of change; increasing 14.8% between periods. This was in detriment of; primarily; wetlands by 7.5%; grasslands by 4.0%; and native forests by 2.8%. However; sandbanks presented the highest probability of transition to another land class and; thus; correspond to the most vulnerable land covering the study area. Also; we detected a differential ecosystem loss; both in type and magnitude; up and downstream of the dam. Our work is the first one to address ecosystem loss in the Yacyretá area and our results should help to improve management policies; such as the design of the current network of compensatory reserves. Fil: Bauni, Valeria. Universidad Maimónides. Fundación de Historia Natural Félix de Azara; Buenos Aires, Argentina. Fil: Schivo, Facundo. Instituto de Investigación e Ingeniería Ambiental, Universidad Nacional de San Martín; Buenos Aires, Argentina. Fil: Capmourteres, Virginia. Universidad Maimónides. Fundación de Historia Natural Félix de Azara; Buenos Aires, Argentina. Fil: Homberg, Marina. Universidad Maimónides. Fundación de Historia Natural Félix de Azara; Buenos Aires, Argentina. 2015-07 info:eu-repo/semantics/article info:ar-repo/semantics/artículo Bauni, V.; Schivo, F.; Capmourteres, V. y Homberg, M. (2015) Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá, Argentina. En: Remote Sensing Applications: Society and Environment. Elsevier, 1, 50-60 2352-9385 RSASE 2015 1 50-60 https://ri.unsam.edu.ar/handle/123456789/1001 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5) application/pdf pp. 50-60 application/pdf Elsevier B.V. Remote Sensing Applications: Society and Environment. 2015 1 50-60 Elsevier B.V. https://www.sciencedirect.com/science/article/pii/S2352938515000063
institution Universidad Nacional de General San Martín
institution_str I-78
repository_str R-216
collection Repositorio Institucional de la UNSAM
language Inglés
topic RESERVOIR CREATION
LAND USE AND LAND COVER CHANGE
GIS ANALYSIS
INGENIERÍAS Y TECNOLOGÍAS
spellingShingle RESERVOIR CREATION
LAND USE AND LAND COVER CHANGE
GIS ANALYSIS
INGENIERÍAS Y TECNOLOGÍAS
Bauni, Valeria
Schivo, Facundo
Capmourteres, Virginia
Homberg, Marina
Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina
topic_facet RESERVOIR CREATION
LAND USE AND LAND COVER CHANGE
GIS ANALYSIS
INGENIERÍAS Y TECNOLOGÍAS
description The Yacyretá dam is one of the most important hydroelectric projects in La Plata Basin.As a consequence of the filling of the reservoir to its final height of 83 meters; approximately 1;076 km2 of terrestrial and riparian ecosystems were flooded in Argentina and Paraguay. In order to evaluate the ecosystems loss due to this impounding; we generated two maps of land use/land cover from Landsat satellite images: 1987 (prior to the dam) and 2011 (after the final height was reached). We applied a post classification method and tested the gain; loss; and net change of natural and anthropic ecosystems in the study area with a cross tabulation matrix. Water bodies were the land cover type that showed the greatest degree of change; increasing 14.8% between periods. This was in detriment of; primarily; wetlands by 7.5%; grasslands by 4.0%; and native forests by 2.8%. However; sandbanks presented the highest probability of transition to another land class and; thus; correspond to the most vulnerable land covering the study area. Also; we detected a differential ecosystem loss; both in type and magnitude; up and downstream of the dam. Our work is the first one to address ecosystem loss in the Yacyretá area and our results should help to improve management policies; such as the design of the current network of compensatory reserves.
format publishedVersion
Artículo
Artículo
author Bauni, Valeria
Schivo, Facundo
Capmourteres, Virginia
Homberg, Marina
author_facet Bauni, Valeria
Schivo, Facundo
Capmourteres, Virginia
Homberg, Marina
author_sort Bauni, Valeria
title Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina
title_short Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina
title_full Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina
title_fullStr Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina
title_full_unstemmed Ecosystem loss assessment following hydroelectric dam flooding: The case of Yacyretá; Argentina
title_sort ecosystem loss assessment following hydroelectric dam flooding: the case of yacyretá; argentina
publisher Elsevier B.V.
publishDate 2015
url https://ri.unsam.edu.ar/handle/123456789/1001
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AT schivofacundo ecosystemlossassessmentfollowinghydroelectricdamfloodingthecaseofyacyretaargentina
AT capmourteresvirginia ecosystemlossassessmentfollowinghydroelectricdamfloodingthecaseofyacyretaargentina
AT hombergmarina ecosystemlossassessmentfollowinghydroelectricdamfloodingthecaseofyacyretaargentina
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