Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain

In the last five decades, mountain and lowland rivers of the Iberian Peninsula have undergone noticeable hydrological and geomorphological change, in response to an overall reduction of discharge, floods and sediment supply. The causes are humaninduced land use change, the building of reservoirs and...

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Detalles Bibliográficos
Autores: Ollero, Alfredo, Ibisate González de Matauco, Askoa, Granado, David, Real de Asua, Rafael
Tipo de recurso: capítulo de libro
Fecha de publicación:2015
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/78247
Acceso en línea:http://hdl.handle.net/10810/78247
Access Level:acceso abierto
Palabra clave:channel change
human impacts
floodplain management
fluvial Territory
Ebro River
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spelling Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE SpainOllero, AlfredoIbisate González de Matauco, AskoaGranado, DavidReal de Asua, Rafaelchannel changehuman impactsfloodplain managementfluvial TerritoryEbro RiverIn the last five decades, mountain and lowland rivers of the Iberian Peninsula have undergone noticeable hydrological and geomorphological change, in response to an overall reduction of discharge, floods and sediment supply. The causes are humaninduced land use change, the building of reservoirs and gradual climate change. In lowland river floodplains, further significant impact comes from human interventions in the channels, such as the building embankments, in-channel gravel extractions and artificial meander cut-off. The case of the middle Ebro River and its tributaries (Aragón, Gállego and Cinca rivers) is very well suited to exemplify and analyse these processes and impacts, with morphological changes (incision, narrowing, simplification) and progressive reduction of channel migration and reduced presence of sediment bars. River migration was reduced from 15 m/year to values from 0 to 5 m/year since mid-twentieth century. Floodplain natural areas were reduced 40 % on average since 1927. In recent years, we have begun to seek solutions to mitigate these fluvial problems. Most of them are focused on floodplain management through the Fluvial Territory approach. Here we present this approach, the basic tools for its demarcation and the results of some actions of fluvial restoration already implemented. Four case studies of embankments removal are presented. Flood peak reduction was detected and morphological effects are being monitored. These initial actions could lead to new river management practices with improved river dynamics.Springer202620262015info:eu-repo/semantics/bookPartapplication/pdfhttp://hdl.handle.net/10810/78247reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoIngléshttps://doi.org/10.1007/978-1-4939-2380-9_3info:eu-repo/semantics/openAccess© 2015 Springer New Yorkoai:addi.ehu.eus:10810/782472026-06-18T09:23:17Z
dc.title.none.fl_str_mv Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
title Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
spellingShingle Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
Ollero, Alfredo
channel change
human impacts
floodplain management
fluvial Territory
Ebro River
title_short Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
title_full Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
title_fullStr Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
title_full_unstemmed Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
title_sort Channel Responses to Global Change and Local Impacts: Perspectives and Tools for Floodplain Management, Ebro River and Tributaries, NE Spain
dc.creator.none.fl_str_mv Ollero, Alfredo
Ibisate González de Matauco, Askoa
Granado, David
Real de Asua, Rafael
author Ollero, Alfredo
author_facet Ollero, Alfredo
Ibisate González de Matauco, Askoa
Granado, David
Real de Asua, Rafael
author_role author
author2 Ibisate González de Matauco, Askoa
Granado, David
Real de Asua, Rafael
author2_role author
author
author
dc.subject.none.fl_str_mv channel change
human impacts
floodplain management
fluvial Territory
Ebro River
topic channel change
human impacts
floodplain management
fluvial Territory
Ebro River
description In the last five decades, mountain and lowland rivers of the Iberian Peninsula have undergone noticeable hydrological and geomorphological change, in response to an overall reduction of discharge, floods and sediment supply. The causes are humaninduced land use change, the building of reservoirs and gradual climate change. In lowland river floodplains, further significant impact comes from human interventions in the channels, such as the building embankments, in-channel gravel extractions and artificial meander cut-off. The case of the middle Ebro River and its tributaries (Aragón, Gállego and Cinca rivers) is very well suited to exemplify and analyse these processes and impacts, with morphological changes (incision, narrowing, simplification) and progressive reduction of channel migration and reduced presence of sediment bars. River migration was reduced from 15 m/year to values from 0 to 5 m/year since mid-twentieth century. Floodplain natural areas were reduced 40 % on average since 1927. In recent years, we have begun to seek solutions to mitigate these fluvial problems. Most of them are focused on floodplain management through the Fluvial Territory approach. Here we present this approach, the basic tools for its demarcation and the results of some actions of fluvial restoration already implemented. Four case studies of embankments removal are presented. Flood peak reduction was detected and morphological effects are being monitored. These initial actions could lead to new river management practices with improved river dynamics.
publishDate 2015
dc.date.none.fl_str_mv 2015
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/bookPart
format bookPart
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/78247
url http://hdl.handle.net/10810/78247
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1007/978-1-4939-2380-9_3
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
© 2015 Springer New York
eu_rights_str_mv openAccess
rights_invalid_str_mv © 2015 Springer New York
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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