A drendrogeomorpholigical study of the local effect of climate change

Autores
Datri, Leonardo; Maddio, Rafael; Faggi, Ana; Gallo, Leonardo Ariel
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión enviada
Descripción
The climatic and environmental conditions of Patagonia changed substantially after 1850 and after the mid-1970s decade. The impact of these changes is being observed in the new configuration of rivers and their riverine vegetation. The objective of this work is to integrate dendrogeomorphological techniques to the mapping and modeling of the recent distribution of vegetation of the riverine landscape, as an indicator of the local effect of climate change. The hydrological regime and the evolution of riparian vegetation at the confluence of the Cuyín Manzano and Traful Rivers were synchronized using the data obtained from 34 samples of plots of 6x6 meters. The plots were adjusted to the pixel resolution of two SPOT 7 satellite images (flood and dryness), concentric to an area of 18x18 meters, in order to validate a supervised classification of vegetation, belonging to different fluvial geoforms. In the plots with woody vegetation two trees corresponding to one or two age classes characteristic of the stands were drilled. The results indicate that, in agreement with global and Patagonia climate change estimates, there is a slight tendency of change in the flood and drought regime, with decreases in mean annual minimum flows and a period of drought in the last six years. The most outstanding result of our study indicates that the change of the hydrological regime implies a slight reduction of the average minimum flows, without this entailing a modification of the regime of flood pulses that in some cases are very extreme. This situation has a marked incidence in the fact that the woody vegetation colonizes new substrates and emerged landforms, while it is affected by frequent and intense flood events, with a change of the compositions and distribution of the vegetation.
Fil: Datri, Leonardo. Universidad de Flores; Argentina.
Fil: Datri, Leonardo. Universidad Nacional del Comahue; Argentina.
Fil: Maddio, Rafael. Universidad Nacional del Comahue; Argentina.
Fil: Faggi, Ana. Universidad de Flores; Argentina.
Fil: Gallo, Leonardo Ariel. Instituto Nacional de Tecnología Agropecuaria; Argentina.
Materia
CAMBIO CLIMATICO
ARBOLES
DENDROGEOMORFOLOGIA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
Repositorio Institucional de la Universidad de Flores
Institución
Universidad de Flores
OAI Identificador
oai:repositorio.uflo.edu.ar:20.500.14340/1132
Acceder
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oai_identifier_str oai:repositorio.uflo.edu.ar:20.500.14340/1132
network_acronym_str RIUFLO
repository_id_str
network_name_str Repositorio Institucional de la Universidad de Flores
spelling A drendrogeomorpholigical study of the local effect of climate changeDatri, LeonardoMaddio, RafaelFaggi, AnaGallo, Leonardo ArielCAMBIO CLIMATICOARBOLESDENDROGEOMORFOLOGIAThe climatic and environmental conditions of Patagonia changed substantially after 1850 and after the mid-1970s decade. The impact of these changes is being observed in the new configuration of rivers and their riverine vegetation. The objective of this work is to integrate dendrogeomorphological techniques to the mapping and modeling of the recent distribution of vegetation of the riverine landscape, as an indicator of the local effect of climate change. The hydrological regime and the evolution of riparian vegetation at the confluence of the Cuyín Manzano and Traful Rivers were synchronized using the data obtained from 34 samples of plots of 6x6 meters. The plots were adjusted to the pixel resolution of two SPOT 7 satellite images (flood and dryness), concentric to an area of 18x18 meters, in order to validate a supervised classification of vegetation, belonging to different fluvial geoforms. In the plots with woody vegetation two trees corresponding to one or two age classes characteristic of the stands were drilled. The results indicate that, in agreement with global and Patagonia climate change estimates, there is a slight tendency of change in the flood and drought regime, with decreases in mean annual minimum flows and a period of drought in the last six years. The most outstanding result of our study indicates that the change of the hydrological regime implies a slight reduction of the average minimum flows, without this entailing a modification of the regime of flood pulses that in some cases are very extreme. This situation has a marked incidence in the fact that the woody vegetation colonizes new substrates and emerged landforms, while it is affected by frequent and intense flood events, with a change of the compositions and distribution of the vegetation.Fil: Datri, Leonardo. Universidad de Flores; Argentina.Fil: Datri, Leonardo. Universidad Nacional del Comahue; Argentina.Fil: Maddio, Rafael. Universidad Nacional del Comahue; Argentina.Fil: Faggi, Ana. Universidad de Flores; Argentina.Fil: Gallo, Leonardo Ariel. Instituto Nacional de Tecnología Agropecuaria; Argentina.2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://hdl.handle.net/20.500.14340/1132enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Atribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)reponame:Repositorio Institucional de la Universidad de Floresinstname:Universidad de Flores2025-10-16T10:48:11Zoai:repositorio.uflo.edu.ar:20.500.14340/1132instacron:UFLOInstitucionalhttps://repositorio.uflo.edu.ar/Universidad privadahttps://www.uflouniversidad.edu.ar/https://repositorio.uflo.edu.ar/server/oai/gabriela.rizzo@uflouniversidad.edu.arArgentinaopendoar:2025-10-16 10:48:12.077Repositorio Institucional de la Universidad de Flores - Universidad de Floresfalse
dc.title.none.fl_str_mv A drendrogeomorpholigical study of the local effect of climate change
title A drendrogeomorpholigical study of the local effect of climate change
spellingShingle A drendrogeomorpholigical study of the local effect of climate change
Datri, Leonardo
CAMBIO CLIMATICO
ARBOLES
DENDROGEOMORFOLOGIA
title_short A drendrogeomorpholigical study of the local effect of climate change
title_full A drendrogeomorpholigical study of the local effect of climate change
title_fullStr A drendrogeomorpholigical study of the local effect of climate change
title_full_unstemmed A drendrogeomorpholigical study of the local effect of climate change
title_sort A drendrogeomorpholigical study of the local effect of climate change
dc.creator.none.fl_str_mv Datri, Leonardo
Maddio, Rafael
Faggi, Ana
Gallo, Leonardo Ariel
author Datri, Leonardo
author_facet Datri, Leonardo
Maddio, Rafael
Faggi, Ana
Gallo, Leonardo Ariel
author_role author
author2 Maddio, Rafael
Faggi, Ana
Gallo, Leonardo Ariel
author2_role author
author
author
dc.subject.none.fl_str_mv CAMBIO CLIMATICO
ARBOLES
DENDROGEOMORFOLOGIA
topic CAMBIO CLIMATICO
ARBOLES
DENDROGEOMORFOLOGIA
dc.description.none.fl_txt_mv The climatic and environmental conditions of Patagonia changed substantially after 1850 and after the mid-1970s decade. The impact of these changes is being observed in the new configuration of rivers and their riverine vegetation. The objective of this work is to integrate dendrogeomorphological techniques to the mapping and modeling of the recent distribution of vegetation of the riverine landscape, as an indicator of the local effect of climate change. The hydrological regime and the evolution of riparian vegetation at the confluence of the Cuyín Manzano and Traful Rivers were synchronized using the data obtained from 34 samples of plots of 6x6 meters. The plots were adjusted to the pixel resolution of two SPOT 7 satellite images (flood and dryness), concentric to an area of 18x18 meters, in order to validate a supervised classification of vegetation, belonging to different fluvial geoforms. In the plots with woody vegetation two trees corresponding to one or two age classes characteristic of the stands were drilled. The results indicate that, in agreement with global and Patagonia climate change estimates, there is a slight tendency of change in the flood and drought regime, with decreases in mean annual minimum flows and a period of drought in the last six years. The most outstanding result of our study indicates that the change of the hydrological regime implies a slight reduction of the average minimum flows, without this entailing a modification of the regime of flood pulses that in some cases are very extreme. This situation has a marked incidence in the fact that the woody vegetation colonizes new substrates and emerged landforms, while it is affected by frequent and intense flood events, with a change of the compositions and distribution of the vegetation.
Fil: Datri, Leonardo. Universidad de Flores; Argentina.
Fil: Datri, Leonardo. Universidad Nacional del Comahue; Argentina.
Fil: Maddio, Rafael. Universidad Nacional del Comahue; Argentina.
Fil: Faggi, Ana. Universidad de Flores; Argentina.
Fil: Gallo, Leonardo Ariel. Instituto Nacional de Tecnología Agropecuaria; Argentina.
description The climatic and environmental conditions of Patagonia changed substantially after 1850 and after the mid-1970s decade. The impact of these changes is being observed in the new configuration of rivers and their riverine vegetation. The objective of this work is to integrate dendrogeomorphological techniques to the mapping and modeling of the recent distribution of vegetation of the riverine landscape, as an indicator of the local effect of climate change. The hydrological regime and the evolution of riparian vegetation at the confluence of the Cuyín Manzano and Traful Rivers were synchronized using the data obtained from 34 samples of plots of 6x6 meters. The plots were adjusted to the pixel resolution of two SPOT 7 satellite images (flood and dryness), concentric to an area of 18x18 meters, in order to validate a supervised classification of vegetation, belonging to different fluvial geoforms. In the plots with woody vegetation two trees corresponding to one or two age classes characteristic of the stands were drilled. The results indicate that, in agreement with global and Patagonia climate change estimates, there is a slight tendency of change in the flood and drought regime, with decreases in mean annual minimum flows and a period of drought in the last six years. The most outstanding result of our study indicates that the change of the hydrological regime implies a slight reduction of the average minimum flows, without this entailing a modification of the regime of flood pulses that in some cases are very extreme. This situation has a marked incidence in the fact that the woody vegetation colonizes new substrates and emerged landforms, while it is affected by frequent and intense flood events, with a change of the compositions and distribution of the vegetation.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14340/1132
url https://hdl.handle.net/20.500.14340/1132
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Atribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Atribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional de la Universidad de Flores
instname:Universidad de Flores
reponame_str Repositorio Institucional de la Universidad de Flores
collection Repositorio Institucional de la Universidad de Flores
instname_str Universidad de Flores
repository.name.fl_str_mv Repositorio Institucional de la Universidad de Flores - Universidad de Flores
repository.mail.fl_str_mv gabriela.rizzo@uflouniversidad.edu.ar
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score 12.712165

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