Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century
- Autores
- Viglizzo, Ernesto Francisco; Frank, Federico Carlos
- Año de publicación
- 2006
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The Western Pampas consists of a large and complex sand dune system that originated during the last Pleistocene glaciations and was reworked during later semi-desertic episodes. Humans only colonized the region during the last century, but their action was powerful enough to produce two catastrophic events: one during the first half of the century, and the other one during the second half. Deforestation, over grazing, over cropping plus a non-suitable tillage technology in interaction with extremely dry and windy conditions of the 1930s and 1940s, caused a large dust-bowl episode that triggered severe dust storms, cattle mortality, crop failure, farmer bankruptcy and rural migration. During the second half of the century, improved rainfall conditions favored the conversion of abandoned lands into grazing lands and croplands. At the same time, recurrent episodes of flooding affected the area between 1970 and 2002, more drastically in the highly productive lowlands of the Río Quinto Watershed. The configuration of dunes with respect to the slope, and the lack of a suitable infrastructure, impeded water removal and favored its accumulation. High cultivation rates dramatically increased the severity of floods during such humid periods. The ecological catastrophes of the Western Pampas during the 20th century were the result of a complex interaction involving the geological configuration, climate variability and human intervention. Over cropping has probably surpassed critical ecological thresholds and this, in turn, triggered both the dust-bowl and the flooding events. On the other hand, natural feed-back mechanisms were probably activated allowing a later stabilization and recovery of the affected lands.
Fil: Viglizzo, Ernesto Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina
Fil: Frank, Federico Carlos. Instituto Nacional de Tecnología Agropecuaria; Argentina - Materia
-
Land Use Change
Non-Linear Behavior
Soil Erosion
Floods - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/81805
Ver los metadatos del registro completo
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Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last centuryViglizzo, Ernesto FranciscoFrank, Federico CarlosLand Use ChangeNon-Linear BehaviorSoil ErosionFloodshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The Western Pampas consists of a large and complex sand dune system that originated during the last Pleistocene glaciations and was reworked during later semi-desertic episodes. Humans only colonized the region during the last century, but their action was powerful enough to produce two catastrophic events: one during the first half of the century, and the other one during the second half. Deforestation, over grazing, over cropping plus a non-suitable tillage technology in interaction with extremely dry and windy conditions of the 1930s and 1940s, caused a large dust-bowl episode that triggered severe dust storms, cattle mortality, crop failure, farmer bankruptcy and rural migration. During the second half of the century, improved rainfall conditions favored the conversion of abandoned lands into grazing lands and croplands. At the same time, recurrent episodes of flooding affected the area between 1970 and 2002, more drastically in the highly productive lowlands of the Río Quinto Watershed. The configuration of dunes with respect to the slope, and the lack of a suitable infrastructure, impeded water removal and favored its accumulation. High cultivation rates dramatically increased the severity of floods during such humid periods. The ecological catastrophes of the Western Pampas during the 20th century were the result of a complex interaction involving the geological configuration, climate variability and human intervention. Over cropping has probably surpassed critical ecological thresholds and this, in turn, triggered both the dust-bowl and the flooding events. On the other hand, natural feed-back mechanisms were probably activated allowing a later stabilization and recovery of the affected lands.Fil: Viglizzo, Ernesto Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; ArgentinaFil: Frank, Federico Carlos. Instituto Nacional de Tecnología Agropecuaria; ArgentinaPergamon-Elsevier Science Ltd2006-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/81805Viglizzo, Ernesto Francisco; Frank, Federico Carlos; Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century; Pergamon-Elsevier Science Ltd; Quaternary International; 158; 1; 12-2006; 122-1261040-6182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1040618206001595info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2006.05.022info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:28:56Zoai:ri.conicet.gov.ar:11336/81805instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:28:56.969CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century |
title |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century |
spellingShingle |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century Viglizzo, Ernesto Francisco Land Use Change Non-Linear Behavior Soil Erosion Floods |
title_short |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century |
title_full |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century |
title_fullStr |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century |
title_full_unstemmed |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century |
title_sort |
Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century |
dc.creator.none.fl_str_mv |
Viglizzo, Ernesto Francisco Frank, Federico Carlos |
author |
Viglizzo, Ernesto Francisco |
author_facet |
Viglizzo, Ernesto Francisco Frank, Federico Carlos |
author_role |
author |
author2 |
Frank, Federico Carlos |
author2_role |
author |
dc.subject.none.fl_str_mv |
Land Use Change Non-Linear Behavior Soil Erosion Floods |
topic |
Land Use Change Non-Linear Behavior Soil Erosion Floods |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The Western Pampas consists of a large and complex sand dune system that originated during the last Pleistocene glaciations and was reworked during later semi-desertic episodes. Humans only colonized the region during the last century, but their action was powerful enough to produce two catastrophic events: one during the first half of the century, and the other one during the second half. Deforestation, over grazing, over cropping plus a non-suitable tillage technology in interaction with extremely dry and windy conditions of the 1930s and 1940s, caused a large dust-bowl episode that triggered severe dust storms, cattle mortality, crop failure, farmer bankruptcy and rural migration. During the second half of the century, improved rainfall conditions favored the conversion of abandoned lands into grazing lands and croplands. At the same time, recurrent episodes of flooding affected the area between 1970 and 2002, more drastically in the highly productive lowlands of the Río Quinto Watershed. The configuration of dunes with respect to the slope, and the lack of a suitable infrastructure, impeded water removal and favored its accumulation. High cultivation rates dramatically increased the severity of floods during such humid periods. The ecological catastrophes of the Western Pampas during the 20th century were the result of a complex interaction involving the geological configuration, climate variability and human intervention. Over cropping has probably surpassed critical ecological thresholds and this, in turn, triggered both the dust-bowl and the flooding events. On the other hand, natural feed-back mechanisms were probably activated allowing a later stabilization and recovery of the affected lands. Fil: Viglizzo, Ernesto Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina Fil: Frank, Federico Carlos. Instituto Nacional de Tecnología Agropecuaria; Argentina |
description |
The Western Pampas consists of a large and complex sand dune system that originated during the last Pleistocene glaciations and was reworked during later semi-desertic episodes. Humans only colonized the region during the last century, but their action was powerful enough to produce two catastrophic events: one during the first half of the century, and the other one during the second half. Deforestation, over grazing, over cropping plus a non-suitable tillage technology in interaction with extremely dry and windy conditions of the 1930s and 1940s, caused a large dust-bowl episode that triggered severe dust storms, cattle mortality, crop failure, farmer bankruptcy and rural migration. During the second half of the century, improved rainfall conditions favored the conversion of abandoned lands into grazing lands and croplands. At the same time, recurrent episodes of flooding affected the area between 1970 and 2002, more drastically in the highly productive lowlands of the Río Quinto Watershed. The configuration of dunes with respect to the slope, and the lack of a suitable infrastructure, impeded water removal and favored its accumulation. High cultivation rates dramatically increased the severity of floods during such humid periods. The ecological catastrophes of the Western Pampas during the 20th century were the result of a complex interaction involving the geological configuration, climate variability and human intervention. Over cropping has probably surpassed critical ecological thresholds and this, in turn, triggered both the dust-bowl and the flooding events. On the other hand, natural feed-back mechanisms were probably activated allowing a later stabilization and recovery of the affected lands. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-12 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/81805 Viglizzo, Ernesto Francisco; Frank, Federico Carlos; Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century; Pergamon-Elsevier Science Ltd; Quaternary International; 158; 1; 12-2006; 122-126 1040-6182 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/81805 |
identifier_str_mv |
Viglizzo, Ernesto Francisco; Frank, Federico Carlos; Ecological interactions, feedbacks, thresholds and collapses in the Argentine Pampas in response to climate and farming during the last century; Pergamon-Elsevier Science Ltd; Quaternary International; 158; 1; 12-2006; 122-126 1040-6182 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1040618206001595 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2006.05.022 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614294444965888 |
score |
13.070432 |