Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)

The sensitive mountain catchment of Portainé (Eastern Pyrenees, Iberian Peninsula) has recently experienced a significant change in its torrential dynamics due to human disturbances. The emplacement of a ski resort at the headwaters led to the surpassing of a geomorphological threshold, with importa...

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Autores: Furdada Bellavista, Glòria, Victoriano, Ane, Díez Herrero, Andrés, Palau Berastegui, Rosa Maria|||0000-0002-5350-0522, Hurlimann Ziegler, Marcel|||0000-0003-0119-1438
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/177992
Acceso en línea:https://hdl.handle.net/2117/177992
https://dx.doi.org/10.3390/w12020368
Access Level:acceso abierto
Palabra clave:Floods--Spain--Catalonia
Flood torrential dynamics
Geomorphological threshold
Land-use changes
Ski resort
Hydrological response
Pyrenees
Inundacions -- Catalunya
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològics
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Hidrologia
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network_acronym_str ES
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repository_id_str
spelling Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)Furdada Bellavista, GlòriaVictoriano, AneDíez Herrero, AndrésPalau Berastegui, Rosa Maria|||0000-0002-5350-0522Hurlimann Ziegler, Marcel|||0000-0003-0119-1438Floods--Spain--CataloniaFlood torrential dynamicsGeomorphological thresholdLand-use changesSki resortHydrological responsePyreneesInundacions -- CatalunyaÀrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològicsÀrees temàtiques de la UPC::Enginyeria civil::Geologia::HidrologiaThe sensitive mountain catchment of Portainé (Eastern Pyrenees, Iberian Peninsula) has recently experienced a significant change in its torrential dynamics due to human disturbances. The emplacement of a ski resort at the headwaters led to the surpassing of a geomorphological threshold, with important consequences during flood events. Consequently, since 2008, channel dynamics have turned into sediment-laden, highly destructive torrential flows. In order to assess this phenomenon and to acquire a holistic understanding of the catchment’s behaviour, we carried out a field work-based multidisciplinary study. We considered the interaction of the various controlling factors, including bedrock geology, geomorphological evolution, derived soils and coluvial deposits, rainfall patterns, and the hydrological response of the catchment to flood events. Moreover, anthropogenic land-use changes, its consequential hydrogeomorphic effects and the role of vegetation were also taken into account. Robust sedimentological and geomorphological evidence of ancient dense debris flows show that the basin has shifted around this threshold, giving rise to two different behaviours or equilibrium conditions throughout its history: alternating periods of moderate, bedload-laden flows and periods of high sediment-laden debris flow dynamics. This shifting could have extended through the Holocene. Finally, we discuss the possible impact of climate and global change, as the projected effects suggest future soil and forest degradation; this, jointly with more intense rainfalls in these mountain environments, would exacerbate the future occurrence of dense sediment-laden flows at Portainé, but also in other nearby, similar basins.Peer Reviewed20202020-02-0120202020-02-18journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/177992https://dx.doi.org/10.3390/w12020368reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1779922026-05-27T15:37:01Z
dc.title.none.fl_str_mv Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
title Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
spellingShingle Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
Furdada Bellavista, Glòria
Floods--Spain--Catalonia
Flood torrential dynamics
Geomorphological threshold
Land-use changes
Ski resort
Hydrological response
Pyrenees
Inundacions -- Catalunya
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològics
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Hidrologia
title_short Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
title_full Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
title_fullStr Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
title_full_unstemmed Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
title_sort Flood consequences of land-use changes at a ski resort: overcoming a geomorphological threshold (Portainé, Eastern Pyrenees, Iberian Peninsula)
dc.creator.none.fl_str_mv Furdada Bellavista, Glòria
Victoriano, Ane
Díez Herrero, Andrés
Palau Berastegui, Rosa Maria|||0000-0002-5350-0522
Hurlimann Ziegler, Marcel|||0000-0003-0119-1438
author Furdada Bellavista, Glòria
author_facet Furdada Bellavista, Glòria
Victoriano, Ane
Díez Herrero, Andrés
Palau Berastegui, Rosa Maria|||0000-0002-5350-0522
Hurlimann Ziegler, Marcel|||0000-0003-0119-1438
author_role author
author2 Victoriano, Ane
Díez Herrero, Andrés
Palau Berastegui, Rosa Maria|||0000-0002-5350-0522
Hurlimann Ziegler, Marcel|||0000-0003-0119-1438
author2_role author
author
author
author
dc.subject.none.fl_str_mv Floods--Spain--Catalonia
Flood torrential dynamics
Geomorphological threshold
Land-use changes
Ski resort
Hydrological response
Pyrenees
Inundacions -- Catalunya
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològics
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Hidrologia
topic Floods--Spain--Catalonia
Flood torrential dynamics
Geomorphological threshold
Land-use changes
Ski resort
Hydrological response
Pyrenees
Inundacions -- Catalunya
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Riscos geològics
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Hidrologia
description The sensitive mountain catchment of Portainé (Eastern Pyrenees, Iberian Peninsula) has recently experienced a significant change in its torrential dynamics due to human disturbances. The emplacement of a ski resort at the headwaters led to the surpassing of a geomorphological threshold, with important consequences during flood events. Consequently, since 2008, channel dynamics have turned into sediment-laden, highly destructive torrential flows. In order to assess this phenomenon and to acquire a holistic understanding of the catchment’s behaviour, we carried out a field work-based multidisciplinary study. We considered the interaction of the various controlling factors, including bedrock geology, geomorphological evolution, derived soils and coluvial deposits, rainfall patterns, and the hydrological response of the catchment to flood events. Moreover, anthropogenic land-use changes, its consequential hydrogeomorphic effects and the role of vegetation were also taken into account. Robust sedimentological and geomorphological evidence of ancient dense debris flows show that the basin has shifted around this threshold, giving rise to two different behaviours or equilibrium conditions throughout its history: alternating periods of moderate, bedload-laden flows and periods of high sediment-laden debris flow dynamics. This shifting could have extended through the Holocene. Finally, we discuss the possible impact of climate and global change, as the projected effects suggest future soil and forest degradation; this, jointly with more intense rainfalls in these mountain environments, would exacerbate the future occurrence of dense sediment-laden flows at Portainé, but also in other nearby, similar basins.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-02-01
2020
2020-02-18
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/177992
https://dx.doi.org/10.3390/w12020368
url https://hdl.handle.net/2117/177992
https://dx.doi.org/10.3390/w12020368
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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