Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses

Autores
Flemmer, Andrea Cecilia; Busso, Carlos Alberto; Fernandez, Osvaldo Alberto; Montani, Tomás
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We evaluated the effects of defoliation under varying soil water regimes on aboveground biomass of perennial grasses native to semiarid rangelands of central Argentina. The palatable species Stipa tenuis and S. clarazii were either defoliated or not for two years within a uniform competitive background of S. gynerioides, an unpalatable species which remained nondefoliated until the end of the study in 1997. Stipa gynerioides increased biomass when soil water was plentiful compared to water stress conditions. This species showed a greater percentage of medium- to large-size plants under rainfed and irrigated conditions than under water stress conditions. Greater shading of S. gynerioides as soil water content increased may have contributed to determine a greater proportion of small-size plants in S. clarazii and of dead plants in S. tenuis in the irrigated than in the water stress treatment. Results suggested that grazing of perennial forage grasses under high soil water contents speeded rather than slowed their degradation when they were competing within a matrix of ungrazed, unpalatable perennial tussock grasses.
Fil: Flemmer, Andrea Cecilia. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Busso, Carlos 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: 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: Montani, Tomás. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Materia
Argentina
Irrigation
Regrowth
Semiarid Rangelands
Stipa Species
Water Stress
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:11336/33629
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial GrassesFlemmer, Andrea CeciliaBusso, Carlos AlbertoFernandez, Osvaldo AlbertoMontani, TomásArgentinaIrrigationRegrowthSemiarid RangelandsStipa SpeciesWater Stresshttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4We evaluated the effects of defoliation under varying soil water regimes on aboveground biomass of perennial grasses native to semiarid rangelands of central Argentina. The palatable species Stipa tenuis and S. clarazii were either defoliated or not for two years within a uniform competitive background of S. gynerioides, an unpalatable species which remained nondefoliated until the end of the study in 1997. Stipa gynerioides increased biomass when soil water was plentiful compared to water stress conditions. This species showed a greater percentage of medium- to large-size plants under rainfed and irrigated conditions than under water stress conditions. Greater shading of S. gynerioides as soil water content increased may have contributed to determine a greater proportion of small-size plants in S. clarazii and of dead plants in S. tenuis in the irrigated than in the water stress treatment. Results suggested that grazing of perennial forage grasses under high soil water contents speeded rather than slowed their degradation when they were competing within a matrix of ungrazed, unpalatable perennial tussock grasses.Fil: Flemmer, Andrea Cecilia. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaFil: Busso, Carlos 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: 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: Montani, Tomás. Universidad Nacional del Sur. Departamento de Agronomía; ArgentinaTaylor2003-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/33629Busso, Carlos Alberto; Flemmer, Andrea Cecilia; Montani, Tomás; Fernandez, Osvaldo Alberto; Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses; Taylor; Arid Land Research And Management; 17; 2; 4-2003; 139-1521532-4982CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/15324980301583info:eu-repo/semantics/altIdentifier/doi/0.1080/15324980301583info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:20:14Zoai:ri.conicet.gov.ar:11336/33629instacron: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 11:20:14.258CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
title Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
spellingShingle Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
Flemmer, Andrea Cecilia
Argentina
Irrigation
Regrowth
Semiarid Rangelands
Stipa Species
Water Stress
title_short Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
title_full Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
title_fullStr Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
title_full_unstemmed Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
title_sort Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses
dc.creator.none.fl_str_mv Flemmer, Andrea Cecilia
Busso, Carlos Alberto
Fernandez, Osvaldo Alberto
Montani, Tomás
author Flemmer, Andrea Cecilia
author_facet Flemmer, Andrea Cecilia
Busso, Carlos Alberto
Fernandez, Osvaldo Alberto
Montani, Tomás
author_role author
author2 Busso, Carlos Alberto
Fernandez, Osvaldo Alberto
Montani, Tomás
author2_role author
author
author
dc.subject.none.fl_str_mv Argentina
Irrigation
Regrowth
Semiarid Rangelands
Stipa Species
Water Stress
topic Argentina
Irrigation
Regrowth
Semiarid Rangelands
Stipa Species
Water Stress
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv We evaluated the effects of defoliation under varying soil water regimes on aboveground biomass of perennial grasses native to semiarid rangelands of central Argentina. The palatable species Stipa tenuis and S. clarazii were either defoliated or not for two years within a uniform competitive background of S. gynerioides, an unpalatable species which remained nondefoliated until the end of the study in 1997. Stipa gynerioides increased biomass when soil water was plentiful compared to water stress conditions. This species showed a greater percentage of medium- to large-size plants under rainfed and irrigated conditions than under water stress conditions. Greater shading of S. gynerioides as soil water content increased may have contributed to determine a greater proportion of small-size plants in S. clarazii and of dead plants in S. tenuis in the irrigated than in the water stress treatment. Results suggested that grazing of perennial forage grasses under high soil water contents speeded rather than slowed their degradation when they were competing within a matrix of ungrazed, unpalatable perennial tussock grasses.
Fil: Flemmer, Andrea Cecilia. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
Fil: Busso, Carlos 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: 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: Montani, Tomás. Universidad Nacional del Sur. Departamento de Agronomía; Argentina
description We evaluated the effects of defoliation under varying soil water regimes on aboveground biomass of perennial grasses native to semiarid rangelands of central Argentina. The palatable species Stipa tenuis and S. clarazii were either defoliated or not for two years within a uniform competitive background of S. gynerioides, an unpalatable species which remained nondefoliated until the end of the study in 1997. Stipa gynerioides increased biomass when soil water was plentiful compared to water stress conditions. This species showed a greater percentage of medium- to large-size plants under rainfed and irrigated conditions than under water stress conditions. Greater shading of S. gynerioides as soil water content increased may have contributed to determine a greater proportion of small-size plants in S. clarazii and of dead plants in S. tenuis in the irrigated than in the water stress treatment. Results suggested that grazing of perennial forage grasses under high soil water contents speeded rather than slowed their degradation when they were competing within a matrix of ungrazed, unpalatable perennial tussock grasses.
publishDate 2003
dc.date.none.fl_str_mv 2003-04
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/11336/33629
Busso, Carlos Alberto; Flemmer, Andrea Cecilia; Montani, Tomás; Fernandez, Osvaldo Alberto; Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses; Taylor; Arid Land Research And Management; 17; 2; 4-2003; 139-152
1532-4982
CONICET Digital
CONICET
url http://hdl.handle.net/11336/33629
identifier_str_mv Busso, Carlos Alberto; Flemmer, Andrea Cecilia; Montani, Tomás; Fernandez, Osvaldo Alberto; Effects of Defoliation at Varying Soil Water Regimes on Aboveground Biomass of Perennial Grasses; Taylor; Arid Land Research And Management; 17; 2; 4-2003; 139-152
1532-4982
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/abs/10.1080/15324980301583
info:eu-repo/semantics/altIdentifier/doi/0.1080/15324980301583
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 Taylor
publisher.none.fl_str_mv Taylor
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
_version_ 1846781690001752064
score 12.982451

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