Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition

Autores
Pancotto, Veronica Andrea; Sala, Osvaldo Esteban; Robson, T. Matthew; Caldwell, Martyn M.; Scopel, Ana Leonor
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
As a result of stratospheric ozone depletion, more solar ultraviolet-B radiation (UV-B, 280-315 nm) is reaching the Earth's surface. Enhanced levels of UV-B may, in turn, alter ecosystem processes such as decomposition. Solar UV-B radiation could affect decomposition both indirectly, by changes in the chemical composition of leaves during growth, or directly by photochemical breakdown of litter and through changes in decomposer communities exposed to sunlight. In this experiment, we studied indirect and direct effects of solar UV-B radiation on decomposition of barley (Hordeum vulgare). We used barley straw and leaf litter grown under reduced UV-B (20% of ambient UV-B) or under near-ambient UV-B (90% of ambient UV-B) in Buenos Aires, Argentina, and decomposed the litter under reduced or near-ambient solar UV-B for 29 months in Tierra del Fuego, Argentina. We found that the UV-B treatment applied during growth decreased the decay rate. On the other hand, there was a marginally significant direct effect of elevated UV-B during the early stages of decomposition, suggesting increased mass loss. The effect of UV-B during growth on decomposition was likely the result of changes in plant litter chemical composition. Near-ambient UV-B received during plant growth decreased the concentrations of nitrogen, soluble carbohydrates, and N/P ratio, and increased the concentrations of phosphorus, cellulose, UV-B-absorbing compounds, and lignin/N ratio. Thus, solar UV-B radiation affects the decomposition of barley litter directly and indirectly, and indirect effects are persistent for the whole decomposition period.
Fil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Sala, Osvaldo Esteban. University Brown; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Robson, T. Matthew. State University of Utah; Estados Unidos
Fil: Caldwell, Martyn M.. State University of Utah; Estados Unidos
Fil: Scopel, Ana Leonor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Materia
BARLEY DECOMPOSITION
GLOBAL CHANGE
LONG-TERM STUDY
OZONE DEPLETION
PLANT LITTER QUALITY
SOLAR ULTRAVIOLET-B RADIATION
TERRESTRIAL ECOSYSTEM
TIERRA DEL FUEGO
UV-B
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:11336/132337
Acceder
id CONICETDig_764d651fc5471d922dd87e99288b9f34
oai_identifier_str oai:ri.conicet.gov.ar:11336/132337
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Direct and indirect effects of solar ultraviolet-B radiation on long-term decompositionPancotto, Veronica AndreaSala, Osvaldo EstebanRobson, T. MatthewCaldwell, Martyn M.Scopel, Ana LeonorBARLEY DECOMPOSITIONGLOBAL CHANGELONG-TERM STUDYOZONE DEPLETIONPLANT LITTER QUALITYSOLAR ULTRAVIOLET-B RADIATIONTERRESTRIAL ECOSYSTEMTIERRA DEL FUEGOUV-Bhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1As a result of stratospheric ozone depletion, more solar ultraviolet-B radiation (UV-B, 280-315 nm) is reaching the Earth's surface. Enhanced levels of UV-B may, in turn, alter ecosystem processes such as decomposition. Solar UV-B radiation could affect decomposition both indirectly, by changes in the chemical composition of leaves during growth, or directly by photochemical breakdown of litter and through changes in decomposer communities exposed to sunlight. In this experiment, we studied indirect and direct effects of solar UV-B radiation on decomposition of barley (Hordeum vulgare). We used barley straw and leaf litter grown under reduced UV-B (20% of ambient UV-B) or under near-ambient UV-B (90% of ambient UV-B) in Buenos Aires, Argentina, and decomposed the litter under reduced or near-ambient solar UV-B for 29 months in Tierra del Fuego, Argentina. We found that the UV-B treatment applied during growth decreased the decay rate. On the other hand, there was a marginally significant direct effect of elevated UV-B during the early stages of decomposition, suggesting increased mass loss. The effect of UV-B during growth on decomposition was likely the result of changes in plant litter chemical composition. Near-ambient UV-B received during plant growth decreased the concentrations of nitrogen, soluble carbohydrates, and N/P ratio, and increased the concentrations of phosphorus, cellulose, UV-B-absorbing compounds, and lignin/N ratio. Thus, solar UV-B radiation affects the decomposition of barley litter directly and indirectly, and indirect effects are persistent for the whole decomposition period.Fil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Sala, Osvaldo Esteban. University Brown; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaFil: Robson, T. Matthew. State University of Utah; Estados UnidosFil: Caldwell, Martyn M.. State University of Utah; Estados UnidosFil: Scopel, Ana Leonor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; ArgentinaWiley Blackwell Publishing, Inc2005-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/132337Pancotto, Veronica Andrea; Sala, Osvaldo Esteban; Robson, T. Matthew; Caldwell, Martyn M.; Scopel, Ana Leonor; Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition; Wiley Blackwell Publishing, Inc; Global Change Biology; 11; 11; 11-2005; 1982-19891354-1013CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2486.2005.1027.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2486.2005.1027.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:19Zoai:ri.conicet.gov.ar:11336/132337instacron: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:34982025-09-03 10:01:19.604CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
title Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
spellingShingle Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
Pancotto, Veronica Andrea
BARLEY DECOMPOSITION
GLOBAL CHANGE
LONG-TERM STUDY
OZONE DEPLETION
PLANT LITTER QUALITY
SOLAR ULTRAVIOLET-B RADIATION
TERRESTRIAL ECOSYSTEM
TIERRA DEL FUEGO
UV-B
title_short Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
title_full Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
title_fullStr Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
title_full_unstemmed Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
title_sort Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition
dc.creator.none.fl_str_mv Pancotto, Veronica Andrea
Sala, Osvaldo Esteban
Robson, T. Matthew
Caldwell, Martyn M.
Scopel, Ana Leonor
author Pancotto, Veronica Andrea
author_facet Pancotto, Veronica Andrea
Sala, Osvaldo Esteban
Robson, T. Matthew
Caldwell, Martyn M.
Scopel, Ana Leonor
author_role author
author2 Sala, Osvaldo Esteban
Robson, T. Matthew
Caldwell, Martyn M.
Scopel, Ana Leonor
author2_role author
author
author
author
dc.subject.none.fl_str_mv BARLEY DECOMPOSITION
GLOBAL CHANGE
LONG-TERM STUDY
OZONE DEPLETION
PLANT LITTER QUALITY
SOLAR ULTRAVIOLET-B RADIATION
TERRESTRIAL ECOSYSTEM
TIERRA DEL FUEGO
UV-B
topic BARLEY DECOMPOSITION
GLOBAL CHANGE
LONG-TERM STUDY
OZONE DEPLETION
PLANT LITTER QUALITY
SOLAR ULTRAVIOLET-B RADIATION
TERRESTRIAL ECOSYSTEM
TIERRA DEL FUEGO
UV-B
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv As a result of stratospheric ozone depletion, more solar ultraviolet-B radiation (UV-B, 280-315 nm) is reaching the Earth's surface. Enhanced levels of UV-B may, in turn, alter ecosystem processes such as decomposition. Solar UV-B radiation could affect decomposition both indirectly, by changes in the chemical composition of leaves during growth, or directly by photochemical breakdown of litter and through changes in decomposer communities exposed to sunlight. In this experiment, we studied indirect and direct effects of solar UV-B radiation on decomposition of barley (Hordeum vulgare). We used barley straw and leaf litter grown under reduced UV-B (20% of ambient UV-B) or under near-ambient UV-B (90% of ambient UV-B) in Buenos Aires, Argentina, and decomposed the litter under reduced or near-ambient solar UV-B for 29 months in Tierra del Fuego, Argentina. We found that the UV-B treatment applied during growth decreased the decay rate. On the other hand, there was a marginally significant direct effect of elevated UV-B during the early stages of decomposition, suggesting increased mass loss. The effect of UV-B during growth on decomposition was likely the result of changes in plant litter chemical composition. Near-ambient UV-B received during plant growth decreased the concentrations of nitrogen, soluble carbohydrates, and N/P ratio, and increased the concentrations of phosphorus, cellulose, UV-B-absorbing compounds, and lignin/N ratio. Thus, solar UV-B radiation affects the decomposition of barley litter directly and indirectly, and indirect effects are persistent for the whole decomposition period.
Fil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Sala, Osvaldo Esteban. University Brown; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
Fil: Robson, T. Matthew. State University of Utah; Estados Unidos
Fil: Caldwell, Martyn M.. State University of Utah; Estados Unidos
Fil: Scopel, Ana Leonor. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
description As a result of stratospheric ozone depletion, more solar ultraviolet-B radiation (UV-B, 280-315 nm) is reaching the Earth's surface. Enhanced levels of UV-B may, in turn, alter ecosystem processes such as decomposition. Solar UV-B radiation could affect decomposition both indirectly, by changes in the chemical composition of leaves during growth, or directly by photochemical breakdown of litter and through changes in decomposer communities exposed to sunlight. In this experiment, we studied indirect and direct effects of solar UV-B radiation on decomposition of barley (Hordeum vulgare). We used barley straw and leaf litter grown under reduced UV-B (20% of ambient UV-B) or under near-ambient UV-B (90% of ambient UV-B) in Buenos Aires, Argentina, and decomposed the litter under reduced or near-ambient solar UV-B for 29 months in Tierra del Fuego, Argentina. We found that the UV-B treatment applied during growth decreased the decay rate. On the other hand, there was a marginally significant direct effect of elevated UV-B during the early stages of decomposition, suggesting increased mass loss. The effect of UV-B during growth on decomposition was likely the result of changes in plant litter chemical composition. Near-ambient UV-B received during plant growth decreased the concentrations of nitrogen, soluble carbohydrates, and N/P ratio, and increased the concentrations of phosphorus, cellulose, UV-B-absorbing compounds, and lignin/N ratio. Thus, solar UV-B radiation affects the decomposition of barley litter directly and indirectly, and indirect effects are persistent for the whole decomposition period.
publishDate 2005
dc.date.none.fl_str_mv 2005-11
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/11336/132337
Pancotto, Veronica Andrea; Sala, Osvaldo Esteban; Robson, T. Matthew; Caldwell, Martyn M.; Scopel, Ana Leonor; Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition; Wiley Blackwell Publishing, Inc; Global Change Biology; 11; 11; 11-2005; 1982-1989
1354-1013
CONICET Digital
CONICET
url http://hdl.handle.net/11336/132337
identifier_str_mv Pancotto, Veronica Andrea; Sala, Osvaldo Esteban; Robson, T. Matthew; Caldwell, Martyn M.; Scopel, Ana Leonor; Direct and indirect effects of solar ultraviolet-B radiation on long-term decomposition; Wiley Blackwell Publishing, Inc; Global Change Biology; 11; 11; 11-2005; 1982-1989
1354-1013
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://onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2486.2005.1027.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2486.2005.1027.x
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
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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 13.13397

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