Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands

Autores
Vogel, Braian Emiliano; Molina, Lucia; Rostagno, Cesar Mario; la Manna, Ludmila Andrea
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Historical sheep farming in the Patagonian drylands has led to reduced grass cover, soil erosion, and shrub encroachment, compromising ecosystem function. Effective restoration requires managing shrub cover, bare soil, and patch connectivity through various strategies. This study evalu- ates rehabilitation interventions in a grass-steppe ecosystem, comparing grazed and ungrazed areas. Over three years, we tested the following: (a) mechanical shrub cutting with biomass redistribution, and (b) enhancing patch connectivity with Pinus spp. branch piles, alongside controls, in eighteen 5 m × 5 m plots invaded by Mulinum spinosum. Half of the plots were fenced to exclude grazing, resulting in six treatment combinations. We monitored soil properties, vegetation cover, and species composition. The treatments explained twice as much of the variation in community composition as the annual climatic variations (0.26 vs. 0.13). Livestock exclusion increased perennial grass cover more than the grazed plots did (2.14 vs. 1.42 times the initial measure). All treatments reduced the amount of bare soil except the grazed controls. Shrub cutting, especially with grazing, increased the lasting litter coverage by 5–10% and decreased the bare soil equivalently. Organic matter increased except in the non-intervened interpatches (0.95 times). The enclosures with cut shrubs trapped erodible particles, showing a 5% increase. Our study highlights that grazing destabilizes communities, while enclosures stabilize them, with interventions improving soil fertility and mitigating erosion.
Fil: Vogel, Braian Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Administración de Parques Nacionales. Parque Nacional "Nahuel Huapi"; Argentina
Fil: Molina, Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina
Fil: Rostagno, Cesar Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina
Fil: la Manna, Ludmila Andrea. Universidad Nacional de la Patagonia "san Juan Bosco". Facultad de Ingenieria - Sede Esquel. Centro de Estudios Ambientales Integrados.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
LAND DEGRADATION
EROSION
ECOLOGICAL RESTORATION
ORGANIC MATTER
ADAPTIVE MANAGEMENT
RANGELAND
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/244683
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/244683
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian GrasslandsVogel, Braian EmilianoMolina, LuciaRostagno, Cesar Mariola Manna, Ludmila AndreaLAND DEGRADATIONEROSIONECOLOGICAL RESTORATIONORGANIC MATTERADAPTIVE MANAGEMENTRANGELANDhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Historical sheep farming in the Patagonian drylands has led to reduced grass cover, soil erosion, and shrub encroachment, compromising ecosystem function. Effective restoration requires managing shrub cover, bare soil, and patch connectivity through various strategies. This study evalu- ates rehabilitation interventions in a grass-steppe ecosystem, comparing grazed and ungrazed areas. Over three years, we tested the following: (a) mechanical shrub cutting with biomass redistribution, and (b) enhancing patch connectivity with Pinus spp. branch piles, alongside controls, in eighteen 5 m × 5 m plots invaded by Mulinum spinosum. Half of the plots were fenced to exclude grazing, resulting in six treatment combinations. We monitored soil properties, vegetation cover, and species composition. The treatments explained twice as much of the variation in community composition as the annual climatic variations (0.26 vs. 0.13). Livestock exclusion increased perennial grass cover more than the grazed plots did (2.14 vs. 1.42 times the initial measure). All treatments reduced the amount of bare soil except the grazed controls. Shrub cutting, especially with grazing, increased the lasting litter coverage by 5–10% and decreased the bare soil equivalently. Organic matter increased except in the non-intervened interpatches (0.95 times). The enclosures with cut shrubs trapped erodible particles, showing a 5% increase. Our study highlights that grazing destabilizes communities, while enclosures stabilize them, with interventions improving soil fertility and mitigating erosion.Fil: Vogel, Braian Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Administración de Parques Nacionales. Parque Nacional "Nahuel Huapi"; ArgentinaFil: Molina, Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro de Investigación y Extensión Forestal Andino Patagónico; ArgentinaFil: Rostagno, Cesar Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; ArgentinaFil: la Manna, Ludmila Andrea. Universidad Nacional de la Patagonia "san Juan Bosco". Facultad de Ingenieria - Sede Esquel. Centro de Estudios Ambientales Integrados.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaMDPI2024-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244683Vogel, Braian Emiliano; Molina, Lucia; Rostagno, Cesar Mario; la Manna, Ludmila Andrea; Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands; MDPI; Grasses; 3; 3; 9-2024; 205-2202813-3463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2813-3463/3/3/15info:eu-repo/semantics/altIdentifier/doi/10.3390/grasses3030015info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:29:52Zoai:ri.conicet.gov.ar:11336/244683instacron: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:34982025-10-15 14:29:52.535CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
title Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
spellingShingle Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
Vogel, Braian Emiliano
LAND DEGRADATION
EROSION
ECOLOGICAL RESTORATION
ORGANIC MATTER
ADAPTIVE MANAGEMENT
RANGELAND
title_short Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
title_full Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
title_fullStr Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
title_full_unstemmed Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
title_sort Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands
dc.creator.none.fl_str_mv Vogel, Braian Emiliano
Molina, Lucia
Rostagno, Cesar Mario
la Manna, Ludmila Andrea
author Vogel, Braian Emiliano
author_facet Vogel, Braian Emiliano
Molina, Lucia
Rostagno, Cesar Mario
la Manna, Ludmila Andrea
author_role author
author2 Molina, Lucia
Rostagno, Cesar Mario
la Manna, Ludmila Andrea
author2_role author
author
author
dc.subject.none.fl_str_mv LAND DEGRADATION
EROSION
ECOLOGICAL RESTORATION
ORGANIC MATTER
ADAPTIVE MANAGEMENT
RANGELAND
topic LAND DEGRADATION
EROSION
ECOLOGICAL RESTORATION
ORGANIC MATTER
ADAPTIVE MANAGEMENT
RANGELAND
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Historical sheep farming in the Patagonian drylands has led to reduced grass cover, soil erosion, and shrub encroachment, compromising ecosystem function. Effective restoration requires managing shrub cover, bare soil, and patch connectivity through various strategies. This study evalu- ates rehabilitation interventions in a grass-steppe ecosystem, comparing grazed and ungrazed areas. Over three years, we tested the following: (a) mechanical shrub cutting with biomass redistribution, and (b) enhancing patch connectivity with Pinus spp. branch piles, alongside controls, in eighteen 5 m × 5 m plots invaded by Mulinum spinosum. Half of the plots were fenced to exclude grazing, resulting in six treatment combinations. We monitored soil properties, vegetation cover, and species composition. The treatments explained twice as much of the variation in community composition as the annual climatic variations (0.26 vs. 0.13). Livestock exclusion increased perennial grass cover more than the grazed plots did (2.14 vs. 1.42 times the initial measure). All treatments reduced the amount of bare soil except the grazed controls. Shrub cutting, especially with grazing, increased the lasting litter coverage by 5–10% and decreased the bare soil equivalently. Organic matter increased except in the non-intervened interpatches (0.95 times). The enclosures with cut shrubs trapped erodible particles, showing a 5% increase. Our study highlights that grazing destabilizes communities, while enclosures stabilize them, with interventions improving soil fertility and mitigating erosion.
Fil: Vogel, Braian Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Administración de Parques Nacionales. Parque Nacional "Nahuel Huapi"; Argentina
Fil: Molina, Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina
Fil: Rostagno, Cesar Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina
Fil: la Manna, Ludmila Andrea. Universidad Nacional de la Patagonia "san Juan Bosco". Facultad de Ingenieria - Sede Esquel. Centro de Estudios Ambientales Integrados.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Historical sheep farming in the Patagonian drylands has led to reduced grass cover, soil erosion, and shrub encroachment, compromising ecosystem function. Effective restoration requires managing shrub cover, bare soil, and patch connectivity through various strategies. This study evalu- ates rehabilitation interventions in a grass-steppe ecosystem, comparing grazed and ungrazed areas. Over three years, we tested the following: (a) mechanical shrub cutting with biomass redistribution, and (b) enhancing patch connectivity with Pinus spp. branch piles, alongside controls, in eighteen 5 m × 5 m plots invaded by Mulinum spinosum. Half of the plots were fenced to exclude grazing, resulting in six treatment combinations. We monitored soil properties, vegetation cover, and species composition. The treatments explained twice as much of the variation in community composition as the annual climatic variations (0.26 vs. 0.13). Livestock exclusion increased perennial grass cover more than the grazed plots did (2.14 vs. 1.42 times the initial measure). All treatments reduced the amount of bare soil except the grazed controls. Shrub cutting, especially with grazing, increased the lasting litter coverage by 5–10% and decreased the bare soil equivalently. Organic matter increased except in the non-intervened interpatches (0.95 times). The enclosures with cut shrubs trapped erodible particles, showing a 5% increase. Our study highlights that grazing destabilizes communities, while enclosures stabilize them, with interventions improving soil fertility and mitigating erosion.
publishDate 2024
dc.date.none.fl_str_mv 2024-09
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/11336/244683
Vogel, Braian Emiliano; Molina, Lucia; Rostagno, Cesar Mario; la Manna, Ludmila Andrea; Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands; MDPI; Grasses; 3; 3; 9-2024; 205-220
2813-3463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244683
identifier_str_mv Vogel, Braian Emiliano; Molina, Lucia; Rostagno, Cesar Mario; la Manna, Ludmila Andrea; Effects of Grazing and Shrub Management on Species Composition and Soil Properties in Patagonian Grasslands; MDPI; Grasses; 3; 3; 9-2024; 205-220
2813-3463
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.mdpi.com/2813-3463/3/3/15
info:eu-repo/semantics/altIdentifier/doi/10.3390/grasses3030015
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
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_ 1846082772115914752
score 13.22299

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