Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina

Autores
Cotroneo, S.M.; Jacobo, E.J.; Brassiolo, M.M.; Golluscio, Rodolfo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Exclosures are widely used for rangeland restoration in semiarid woodlands. However, grass recovery could be hampered if degradation exceeded certain thresholds. In this study we assessed four years effects of seasonally grazed exclosures –vs. open rangelands– on understory cover (grasses, low shrubs and litter) and peak standing biomass in three increasing degradation stages –mature forests, secondary forests and shrublands– in semiarid Chaco woodlands. We found that grass cover and biomass increased tenfold in four years in mature and secondary forests but remained virtually null in shrublands. In rested forests, the grass cover increments remained relatively constant regardless the annual rainfall amount, both in the driest year 2013 (531 mm) and the wettest year 2015 (924 mm). Only in an extraordinarily wet year (2015) did grass biomass increased in rested shrublands. In that wet year, low shrubs cover –higher at higher overstory degradation– decreased in all woodlands. Our results suggest that shrublands may constitute a new steady state unable to recover by grazing exclusion itself, but probably by its combination with wet periods.
Fil: Cotroneo, S.M.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina
Fil: Jacobo, E.J.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina
Fil: Brassiolo, M.M.. Universidad Nacional de Santiago del Estero; Argentina
Fil: Golluscio, Rodolfo. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina
Materia
EL NIÑO SOUTHERN OSCILLATION (ENSO)
REHABILITATION
XEROPHILOUS FOREST
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:11336/94019
Acceder
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spelling Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of ArgentinaCotroneo, S.M.Jacobo, E.J.Brassiolo, M.M.Golluscio, RodolfoEL NIÑO SOUTHERN OSCILLATION (ENSO)REHABILITATIONXEROPHILOUS FORESThttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Exclosures are widely used for rangeland restoration in semiarid woodlands. However, grass recovery could be hampered if degradation exceeded certain thresholds. In this study we assessed four years effects of seasonally grazed exclosures –vs. open rangelands– on understory cover (grasses, low shrubs and litter) and peak standing biomass in three increasing degradation stages –mature forests, secondary forests and shrublands– in semiarid Chaco woodlands. We found that grass cover and biomass increased tenfold in four years in mature and secondary forests but remained virtually null in shrublands. In rested forests, the grass cover increments remained relatively constant regardless the annual rainfall amount, both in the driest year 2013 (531 mm) and the wettest year 2015 (924 mm). Only in an extraordinarily wet year (2015) did grass biomass increased in rested shrublands. In that wet year, low shrubs cover –higher at higher overstory degradation– decreased in all woodlands. Our results suggest that shrublands may constitute a new steady state unable to recover by grazing exclusion itself, but probably by its combination with wet periods.Fil: Cotroneo, S.M.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; ArgentinaFil: Jacobo, E.J.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; ArgentinaFil: Brassiolo, M.M.. Universidad Nacional de Santiago del Estero; ArgentinaFil: Golluscio, Rodolfo. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; ArgentinaAcademic Press Ltd - Elsevier Science Ltd2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/94019Cotroneo, S.M.; Jacobo, E.J.; Brassiolo, M.M.; Golluscio, Rodolfo; Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 158; 11-2018; 28-340140-1963CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaridenv.2018.08.002info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0140196318309698info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:45Zoai:ri.conicet.gov.ar:11336/94019instacron: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 09:49:46.232CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
title Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
spellingShingle Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
Cotroneo, S.M.
EL NIÑO SOUTHERN OSCILLATION (ENSO)
REHABILITATION
XEROPHILOUS FOREST
title_short Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
title_full Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
title_fullStr Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
title_full_unstemmed Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
title_sort Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina
dc.creator.none.fl_str_mv Cotroneo, S.M.
Jacobo, E.J.
Brassiolo, M.M.
Golluscio, Rodolfo
author Cotroneo, S.M.
author_facet Cotroneo, S.M.
Jacobo, E.J.
Brassiolo, M.M.
Golluscio, Rodolfo
author_role author
author2 Jacobo, E.J.
Brassiolo, M.M.
Golluscio, Rodolfo
author2_role author
author
author
dc.subject.none.fl_str_mv EL NIÑO SOUTHERN OSCILLATION (ENSO)
REHABILITATION
XEROPHILOUS FOREST
topic EL NIÑO SOUTHERN OSCILLATION (ENSO)
REHABILITATION
XEROPHILOUS FOREST
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Exclosures are widely used for rangeland restoration in semiarid woodlands. However, grass recovery could be hampered if degradation exceeded certain thresholds. In this study we assessed four years effects of seasonally grazed exclosures –vs. open rangelands– on understory cover (grasses, low shrubs and litter) and peak standing biomass in three increasing degradation stages –mature forests, secondary forests and shrublands– in semiarid Chaco woodlands. We found that grass cover and biomass increased tenfold in four years in mature and secondary forests but remained virtually null in shrublands. In rested forests, the grass cover increments remained relatively constant regardless the annual rainfall amount, both in the driest year 2013 (531 mm) and the wettest year 2015 (924 mm). Only in an extraordinarily wet year (2015) did grass biomass increased in rested shrublands. In that wet year, low shrubs cover –higher at higher overstory degradation– decreased in all woodlands. Our results suggest that shrublands may constitute a new steady state unable to recover by grazing exclusion itself, but probably by its combination with wet periods.
Fil: Cotroneo, S.M.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina
Fil: Jacobo, E.J.. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina
Fil: Brassiolo, M.M.. Universidad Nacional de Santiago del Estero; Argentina
Fil: Golluscio, Rodolfo. 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. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Animal; Argentina
description Exclosures are widely used for rangeland restoration in semiarid woodlands. However, grass recovery could be hampered if degradation exceeded certain thresholds. In this study we assessed four years effects of seasonally grazed exclosures –vs. open rangelands– on understory cover (grasses, low shrubs and litter) and peak standing biomass in three increasing degradation stages –mature forests, secondary forests and shrublands– in semiarid Chaco woodlands. We found that grass cover and biomass increased tenfold in four years in mature and secondary forests but remained virtually null in shrublands. In rested forests, the grass cover increments remained relatively constant regardless the annual rainfall amount, both in the driest year 2013 (531 mm) and the wettest year 2015 (924 mm). Only in an extraordinarily wet year (2015) did grass biomass increased in rested shrublands. In that wet year, low shrubs cover –higher at higher overstory degradation– decreased in all woodlands. Our results suggest that shrublands may constitute a new steady state unable to recover by grazing exclusion itself, but probably by its combination with wet periods.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/94019
Cotroneo, S.M.; Jacobo, E.J.; Brassiolo, M.M.; Golluscio, Rodolfo; Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 158; 11-2018; 28-34
0140-1963
CONICET Digital
CONICET
url http://hdl.handle.net/11336/94019
identifier_str_mv Cotroneo, S.M.; Jacobo, E.J.; Brassiolo, M.M.; Golluscio, Rodolfo; Restoration ability of seasonal exclosures under different woodland degradation stages in semiarid Chaco rangelands of Argentina; Academic Press Ltd - Elsevier Science Ltd; Journal of Arid Environments; 158; 11-2018; 28-34
0140-1963
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.jaridenv.2018.08.002
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0140196318309698
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 Academic Press Ltd - Elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
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_ 1842268993405059072
score 13.13397

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