The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal

Autores
Fernandez, Osvaldo Alberto; Gil, María Elena; Distel, Roberto Alejandro
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The phytogeographical region known as the Caldenal comprises an area of approximately 10 million ha in the central temperate part of Argentina (35–40° S, 62–66° W). The original physiognomy of the vegetation consisted of a gramineous steppe with isolated shrubs and trees. Rangeland deterioration was initiated in the early-1900s with the introduction of livestock by the colonizing European ranchers. After a few decades of inappropriate use, the Caldenal proved to be a fragile environment. Major environmental impacts were: (a) The replacement of the most abundant palatable grasses Poa ligularis, Stipa clarazii, S. tenuis, Piptochaetium napostaense and Digitaria californica by low nutritive unpalatable grasses such as Stipa gynerioides, S. tenuissima, S. ambigua, S. bracychaeta and Elyonurus muticus; (b) The conversion of extensive areas dominated by grasses to a scrubland. There, frequent species are: Condalia microphylla, Lycium chilense, Prosopis alpataco, Larrea divaricata and Chuquiraga erinacea; (c) Depletion of plant cover resulting in incipient but increasing soil erosion in extensive areas. With the purpose of reversing this situation, the remit initiated 25 years ago was to develop management guidelines conducive to sustainable productivity while preserving the natural resources of the region. This work provides a comprehensive assessment of the impact of major stresses (drought, herbivory, fire) on grass and shrub responses, as well as more basic studies on the ecophysiology of these species. We have gained knowledge which is extremely useful to initiate rangeland utilization based on scientific information, facilitating increased sustainable rangeland productivity while preserving the natural resources.
Fil: Fernandez, Osvaldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Gil, María Elena. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Distel, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Materia
Rangeland Degradation
Vegetation Change
Desertification
Argentina
Cadenal
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/26815
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/26815
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling The challenge of rangeland degradation in a temperate semiarid region of Argentina: the CaldenalFernandez, Osvaldo AlbertoGil, María ElenaDistel, Roberto AlejandroRangeland DegradationVegetation ChangeDesertificationArgentinaCadenalhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The phytogeographical region known as the Caldenal comprises an area of approximately 10 million ha in the central temperate part of Argentina (35–40° S, 62–66° W). The original physiognomy of the vegetation consisted of a gramineous steppe with isolated shrubs and trees. Rangeland deterioration was initiated in the early-1900s with the introduction of livestock by the colonizing European ranchers. After a few decades of inappropriate use, the Caldenal proved to be a fragile environment. Major environmental impacts were: (a) The replacement of the most abundant palatable grasses Poa ligularis, Stipa clarazii, S. tenuis, Piptochaetium napostaense and Digitaria californica by low nutritive unpalatable grasses such as Stipa gynerioides, S. tenuissima, S. ambigua, S. bracychaeta and Elyonurus muticus; (b) The conversion of extensive areas dominated by grasses to a scrubland. There, frequent species are: Condalia microphylla, Lycium chilense, Prosopis alpataco, Larrea divaricata and Chuquiraga erinacea; (c) Depletion of plant cover resulting in incipient but increasing soil erosion in extensive areas. With the purpose of reversing this situation, the remit initiated 25 years ago was to develop management guidelines conducive to sustainable productivity while preserving the natural resources of the region. This work provides a comprehensive assessment of the impact of major stresses (drought, herbivory, fire) on grass and shrub responses, as well as more basic studies on the ecophysiology of these species. We have gained knowledge which is extremely useful to initiate rangeland utilization based on scientific information, facilitating increased sustainable rangeland productivity while preserving the natural resources.Fil: Fernandez, Osvaldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Gil, María Elena. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Distel, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaWiley2009-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/26815Fernandez, Osvaldo Alberto; Gil, María Elena; Distel, Roberto Alejandro; The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal; Wiley; Land Degradation & Development; 20; 4; 5-2009; 431-4401085-3278CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/ldr.851info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/ldr.851/abstractinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:27:48Zoai:ri.conicet.gov.ar:11336/26815instacron: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:34982025-10-22 11:27:49.161CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
title The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
spellingShingle The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
Fernandez, Osvaldo Alberto
Rangeland Degradation
Vegetation Change
Desertification
Argentina
Cadenal
title_short The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
title_full The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
title_fullStr The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
title_full_unstemmed The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
title_sort The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal
dc.creator.none.fl_str_mv Fernandez, Osvaldo Alberto
Gil, María Elena
Distel, Roberto Alejandro
author Fernandez, Osvaldo Alberto
author_facet Fernandez, Osvaldo Alberto
Gil, María Elena
Distel, Roberto Alejandro
author_role author
author2 Gil, María Elena
Distel, Roberto Alejandro
author2_role author
author
dc.subject.none.fl_str_mv Rangeland Degradation
Vegetation Change
Desertification
Argentina
Cadenal
topic Rangeland Degradation
Vegetation Change
Desertification
Argentina
Cadenal
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The phytogeographical region known as the Caldenal comprises an area of approximately 10 million ha in the central temperate part of Argentina (35–40° S, 62–66° W). The original physiognomy of the vegetation consisted of a gramineous steppe with isolated shrubs and trees. Rangeland deterioration was initiated in the early-1900s with the introduction of livestock by the colonizing European ranchers. After a few decades of inappropriate use, the Caldenal proved to be a fragile environment. Major environmental impacts were: (a) The replacement of the most abundant palatable grasses Poa ligularis, Stipa clarazii, S. tenuis, Piptochaetium napostaense and Digitaria californica by low nutritive unpalatable grasses such as Stipa gynerioides, S. tenuissima, S. ambigua, S. bracychaeta and Elyonurus muticus; (b) The conversion of extensive areas dominated by grasses to a scrubland. There, frequent species are: Condalia microphylla, Lycium chilense, Prosopis alpataco, Larrea divaricata and Chuquiraga erinacea; (c) Depletion of plant cover resulting in incipient but increasing soil erosion in extensive areas. With the purpose of reversing this situation, the remit initiated 25 years ago was to develop management guidelines conducive to sustainable productivity while preserving the natural resources of the region. This work provides a comprehensive assessment of the impact of major stresses (drought, herbivory, fire) on grass and shrub responses, as well as more basic studies on the ecophysiology of these species. We have gained knowledge which is extremely useful to initiate rangeland utilization based on scientific information, facilitating increased sustainable rangeland productivity while preserving the natural resources.
Fil: Fernandez, Osvaldo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Gil, María Elena. Universidad Nacional del Sur. Departamento de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Distel, Roberto Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
description The phytogeographical region known as the Caldenal comprises an area of approximately 10 million ha in the central temperate part of Argentina (35–40° S, 62–66° W). The original physiognomy of the vegetation consisted of a gramineous steppe with isolated shrubs and trees. Rangeland deterioration was initiated in the early-1900s with the introduction of livestock by the colonizing European ranchers. After a few decades of inappropriate use, the Caldenal proved to be a fragile environment. Major environmental impacts were: (a) The replacement of the most abundant palatable grasses Poa ligularis, Stipa clarazii, S. tenuis, Piptochaetium napostaense and Digitaria californica by low nutritive unpalatable grasses such as Stipa gynerioides, S. tenuissima, S. ambigua, S. bracychaeta and Elyonurus muticus; (b) The conversion of extensive areas dominated by grasses to a scrubland. There, frequent species are: Condalia microphylla, Lycium chilense, Prosopis alpataco, Larrea divaricata and Chuquiraga erinacea; (c) Depletion of plant cover resulting in incipient but increasing soil erosion in extensive areas. With the purpose of reversing this situation, the remit initiated 25 years ago was to develop management guidelines conducive to sustainable productivity while preserving the natural resources of the region. This work provides a comprehensive assessment of the impact of major stresses (drought, herbivory, fire) on grass and shrub responses, as well as more basic studies on the ecophysiology of these species. We have gained knowledge which is extremely useful to initiate rangeland utilization based on scientific information, facilitating increased sustainable rangeland productivity while preserving the natural resources.
publishDate 2009
dc.date.none.fl_str_mv 2009-05
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/11336/26815
Fernandez, Osvaldo Alberto; Gil, María Elena; Distel, Roberto Alejandro; The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal; Wiley; Land Degradation & Development; 20; 4; 5-2009; 431-440
1085-3278
CONICET Digital
CONICET
url http://hdl.handle.net/11336/26815
identifier_str_mv Fernandez, Osvaldo Alberto; Gil, María Elena; Distel, Roberto Alejandro; The challenge of rangeland degradation in a temperate semiarid region of Argentina: the Caldenal; Wiley; Land Degradation & Development; 20; 4; 5-2009; 431-440
1085-3278
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/ldr.851
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/ldr.851/abstract
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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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score 12.982451

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