Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina

Autores
Bosco, Tomas; Bertiller, Monica Beatriz; Carrera, Analía Lorena
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Harsh micro-environments in bare soil patches generated by disturbance may affect the emergence ofplant species in desert ecosystems. We evaluated the effects of litter addition on the emergence of peren-nial grass and evergreen shrub species under different conditions of UV radiation and soil water contentin disturbed patches of bare soil. We sowed seeds of perennial grasses (Nassella tenuis and Poa ligularis),and shrubs (Atriplex lampa, Larrea divaricata and Schinus johnstonii) in microcosms containing blocks ofupper soil (28 cm depth) subjected to different levels of three factors: litter (bare soil without litter cover,high quality litter cover from undisturbed plant patches, and low quality litter cover from disturbed plantpatches), UV radiation (near ambient and attenuated UV radiation), and soil water (5?15% and 15?25% ofvolumetric soil water content). The patterns of seedling emergence in relation to litter, UV radiation, andsoil water content varied among species independently of life form. Seedling emergence of all speciesincreased under exposure to UV radiation at all combinations of litter and soil water factors. High soilwater content had an important positive effect on the emergence of N. tenuis and L. divaricata in combi-nation with UV radiation and litter. In contrast, soil water content did not affect or affected negativelythe emergence P. ligularis and A. lampa in combination with litter and UV radiation. The emergence of S.johnstonii occurred only under exposure to UV radiation mostly at high soil water content, independentlyof litter levels. These results highlight the importance of the combined effects of the presence and typeof litter, soil water content, and UV radiation on seedling emergence of perennial grass and shrub speciesand consequently on the vegetation reestablishment processes at disturbed areas.
Fil: Bosco, Tomas. 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: Bertiller, Monica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Carrera, Analía Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Materia
ARID ENVIRONMENT
LITTER QUALITY
LITTER QUANTITY
SOIL WATER CONTENT
UV RADIATION
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:11336/135062
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/135062
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, ArgentinaBosco, TomasBertiller, Monica BeatrizCarrera, Analía LorenaARID ENVIRONMENTLITTER QUALITYLITTER QUANTITYSOIL WATER CONTENTUV RADIATIONhttps://purl.org/becyt/ford/4.5https://purl.org/becyt/ford/4Harsh micro-environments in bare soil patches generated by disturbance may affect the emergence ofplant species in desert ecosystems. We evaluated the effects of litter addition on the emergence of peren-nial grass and evergreen shrub species under different conditions of UV radiation and soil water contentin disturbed patches of bare soil. We sowed seeds of perennial grasses (Nassella tenuis and Poa ligularis),and shrubs (Atriplex lampa, Larrea divaricata and Schinus johnstonii) in microcosms containing blocks ofupper soil (28 cm depth) subjected to different levels of three factors: litter (bare soil without litter cover,high quality litter cover from undisturbed plant patches, and low quality litter cover from disturbed plantpatches), UV radiation (near ambient and attenuated UV radiation), and soil water (5?15% and 15?25% ofvolumetric soil water content). The patterns of seedling emergence in relation to litter, UV radiation, andsoil water content varied among species independently of life form. Seedling emergence of all speciesincreased under exposure to UV radiation at all combinations of litter and soil water factors. High soilwater content had an important positive effect on the emergence of N. tenuis and L. divaricata in combi-nation with UV radiation and litter. In contrast, soil water content did not affect or affected negativelythe emergence P. ligularis and A. lampa in combination with litter and UV radiation. The emergence of S.johnstonii occurred only under exposure to UV radiation mostly at high soil water content, independentlyof litter levels. These results highlight the importance of the combined effects of the presence and typeof litter, soil water content, and UV radiation on seedling emergence of perennial grass and shrub speciesand consequently on the vegetation reestablishment processes at disturbed areas.Fil: Bosco, Tomas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; ArgentinaFil: Bertiller, Monica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaFil: Carrera, Analía Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; ArgentinaElsevier Gmbh2015-01info: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/11336/135062Bosco, Tomas; Bertiller, Monica Beatriz; Carrera, Analía Lorena; Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina; Elsevier Gmbh; Flora; 210; 1-2015; 66-710367-2530CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.flora.2014.10.001info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0367253014001315?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-06T12:28:55Zoai:ri.conicet.gov.ar:11336/135062instacron: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:34982026-02-06 12:28:56.232CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
title Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
spellingShingle Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
Bosco, Tomas
ARID ENVIRONMENT
LITTER QUALITY
LITTER QUANTITY
SOIL WATER CONTENT
UV RADIATION
title_short Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
title_full Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
title_fullStr Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
title_full_unstemmed Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
title_sort Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina
dc.creator.none.fl_str_mv Bosco, Tomas
Bertiller, Monica Beatriz
Carrera, Analía Lorena
author Bosco, Tomas
author_facet Bosco, Tomas
Bertiller, Monica Beatriz
Carrera, Analía Lorena
author_role author
author2 Bertiller, Monica Beatriz
Carrera, Analía Lorena
author2_role author
author
dc.subject.none.fl_str_mv ARID ENVIRONMENT
LITTER QUALITY
LITTER QUANTITY
SOIL WATER CONTENT
UV RADIATION
topic ARID ENVIRONMENT
LITTER QUALITY
LITTER QUANTITY
SOIL WATER CONTENT
UV RADIATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.5
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Harsh micro-environments in bare soil patches generated by disturbance may affect the emergence ofplant species in desert ecosystems. We evaluated the effects of litter addition on the emergence of peren-nial grass and evergreen shrub species under different conditions of UV radiation and soil water contentin disturbed patches of bare soil. We sowed seeds of perennial grasses (Nassella tenuis and Poa ligularis),and shrubs (Atriplex lampa, Larrea divaricata and Schinus johnstonii) in microcosms containing blocks ofupper soil (28 cm depth) subjected to different levels of three factors: litter (bare soil without litter cover,high quality litter cover from undisturbed plant patches, and low quality litter cover from disturbed plantpatches), UV radiation (near ambient and attenuated UV radiation), and soil water (5?15% and 15?25% ofvolumetric soil water content). The patterns of seedling emergence in relation to litter, UV radiation, andsoil water content varied among species independently of life form. Seedling emergence of all speciesincreased under exposure to UV radiation at all combinations of litter and soil water factors. High soilwater content had an important positive effect on the emergence of N. tenuis and L. divaricata in combi-nation with UV radiation and litter. In contrast, soil water content did not affect or affected negativelythe emergence P. ligularis and A. lampa in combination with litter and UV radiation. The emergence of S.johnstonii occurred only under exposure to UV radiation mostly at high soil water content, independentlyof litter levels. These results highlight the importance of the combined effects of the presence and typeof litter, soil water content, and UV radiation on seedling emergence of perennial grass and shrub speciesand consequently on the vegetation reestablishment processes at disturbed areas.
Fil: Bosco, Tomas. 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: Bertiller, Monica Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
Fil: Carrera, Analía Lorena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico para el Estudio de los Ecosistemas Continentales; Argentina. Universidad Nacional de la Patagonia "San Juan Bosco"; Argentina
description Harsh micro-environments in bare soil patches generated by disturbance may affect the emergence ofplant species in desert ecosystems. We evaluated the effects of litter addition on the emergence of peren-nial grass and evergreen shrub species under different conditions of UV radiation and soil water contentin disturbed patches of bare soil. We sowed seeds of perennial grasses (Nassella tenuis and Poa ligularis),and shrubs (Atriplex lampa, Larrea divaricata and Schinus johnstonii) in microcosms containing blocks ofupper soil (28 cm depth) subjected to different levels of three factors: litter (bare soil without litter cover,high quality litter cover from undisturbed plant patches, and low quality litter cover from disturbed plantpatches), UV radiation (near ambient and attenuated UV radiation), and soil water (5?15% and 15?25% ofvolumetric soil water content). The patterns of seedling emergence in relation to litter, UV radiation, andsoil water content varied among species independently of life form. Seedling emergence of all speciesincreased under exposure to UV radiation at all combinations of litter and soil water factors. High soilwater content had an important positive effect on the emergence of N. tenuis and L. divaricata in combi-nation with UV radiation and litter. In contrast, soil water content did not affect or affected negativelythe emergence P. ligularis and A. lampa in combination with litter and UV radiation. The emergence of S.johnstonii occurred only under exposure to UV radiation mostly at high soil water content, independentlyof litter levels. These results highlight the importance of the combined effects of the presence and typeof litter, soil water content, and UV radiation on seedling emergence of perennial grass and shrub speciesand consequently on the vegetation reestablishment processes at disturbed areas.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/135062
Bosco, Tomas; Bertiller, Monica Beatriz; Carrera, Analía Lorena; Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina; Elsevier Gmbh; Flora; 210; 1-2015; 66-71
0367-2530
CONICET Digital
CONICET
url http://hdl.handle.net/11336/135062
identifier_str_mv Bosco, Tomas; Bertiller, Monica Beatriz; Carrera, Analía Lorena; Micro-environmental conditions affect grass and shrub seedlingemergence in denuded areas of the arid Patagonian Monte, Argentina; Elsevier Gmbh; Flora; 210; 1-2015; 66-71
0367-2530
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.flora.2014.10.001
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0367253014001315?via%3Dihub
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 Elsevier Gmbh
publisher.none.fl_str_mv Elsevier Gmbh
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 13.115731

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