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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/33629
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:50:51Zoai: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:34982025-09-29 09:50:51.446CONICET 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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613566940839936 |
score |
13.070432 |