Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects
- Autores
- Ambrosino, Mariela L.; Busso, Carlos; Torres, Yanina Alejandra; Ithurrart, Leticia S.; Martínez, Juan M.; Minoldo, Gabriela; Cardillo, Daniela S.; Palomo, Iris R.
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Plant litter decomposition is critical for terrestrial ecosystem productivity. Poa ligularis Nees ex Steud and Nassella tenuis (Phil.) Barkworth are native, desirable perennial grasses in central Argentina’s rangelands. Amelichloa ambigua (Speg.)Arriaga&Barkworth is only consumed when a better forage is unavailable. Litter traps were used to collect aboveground litter during two years. In March 2012, six bags, each one containing either leaf blade (three bags, one per species) or root litter (three bags, one per species) of the three species were located belowthe canopy of each replicate plant of the studied species (hereafter referred to as ‘location’). Blade litter bags were located on the soil surface, and root litter bags buried at 10 cm soil depth. This allowed evaluation of the effects of defoliation, the different species canopies and the microbial community activity around their roots on decomposition of above- and belowground litter. For each species, twenty plants were either defoliated twice (5 cm stubble height) or remained undefoliated during the growing season. Litter bagswere collected after 2, 7, 13 and 24months incubation. The studywas repeated in 2013, with additional bagswere placed forNcontent determination on leaf blade and root litters. Aboveground litter productionwas highest in P. ligularis; however, no differences were observed among species when the effect of plant size was eliminated. Aboveground litter of desirable species had higher N content and decomposed faster than that of A. ambigua. The opposite was recorded for root litter. Defoliation had no effect on litter decomposition, but location effects were detected after one year of incubation. Desirable perennial grasses promoted organicmatter loss fromlitter, a key factor in increasing soil fertility in this semiarid ecosystem.
- Materia
-
Ciencias de las Plantas, Botánica
Desirable and undesirable grasses
Leaf litter
Nitrogen
Perennial grasses - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
- OAI Identificador
- oai:digital.cic.gba.gob.ar:11746/10573
Ver los metadatos del registro completo
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spelling |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effectsAmbrosino, Mariela L.Busso, CarlosTorres, Yanina AlejandraIthurrart, Leticia S.Martínez, Juan M.Minoldo, GabrielaCardillo, Daniela S.Palomo, Iris R.Ciencias de las Plantas, BotánicaDesirable and undesirable grassesLeaf litterNitrogenPerennial grassesPlant litter decomposition is critical for terrestrial ecosystem productivity. Poa ligularis Nees ex Steud and Nassella tenuis (Phil.) Barkworth are native, desirable perennial grasses in central Argentina’s rangelands. Amelichloa ambigua (Speg.)Arriaga&Barkworth is only consumed when a better forage is unavailable. Litter traps were used to collect aboveground litter during two years. In March 2012, six bags, each one containing either leaf blade (three bags, one per species) or root litter (three bags, one per species) of the three species were located belowthe canopy of each replicate plant of the studied species (hereafter referred to as ‘location’). Blade litter bags were located on the soil surface, and root litter bags buried at 10 cm soil depth. This allowed evaluation of the effects of defoliation, the different species canopies and the microbial community activity around their roots on decomposition of above- and belowground litter. For each species, twenty plants were either defoliated twice (5 cm stubble height) or remained undefoliated during the growing season. Litter bagswere collected after 2, 7, 13 and 24months incubation. The studywas repeated in 2013, with additional bagswere placed forNcontent determination on leaf blade and root litters. Aboveground litter productionwas highest in P. ligularis; however, no differences were observed among species when the effect of plant size was eliminated. Aboveground litter of desirable species had higher N content and decomposed faster than that of A. ambigua. The opposite was recorded for root litter. Defoliation had no effect on litter decomposition, but location effects were detected after one year of incubation. Desirable perennial grasses promoted organicmatter loss fromlitter, a key factor in increasing soil fertility in this semiarid ecosystem.2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/10573enginfo:eu-repo/semantics/altIdentifier/doi/10.1071/RJ18070info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-09-29T13:40:00Zoai:digital.cic.gba.gob.ar:11746/10573Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-09-29 13:40:00.762CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse |
dc.title.none.fl_str_mv |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects |
title |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects |
spellingShingle |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects Ambrosino, Mariela L. Ciencias de las Plantas, Botánica Desirable and undesirable grasses Leaf litter Nitrogen Perennial grasses |
title_short |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects |
title_full |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects |
title_fullStr |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects |
title_full_unstemmed |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects |
title_sort |
Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects |
dc.creator.none.fl_str_mv |
Ambrosino, Mariela L. Busso, Carlos Torres, Yanina Alejandra Ithurrart, Leticia S. Martínez, Juan M. Minoldo, Gabriela Cardillo, Daniela S. Palomo, Iris R. |
author |
Ambrosino, Mariela L. |
author_facet |
Ambrosino, Mariela L. Busso, Carlos Torres, Yanina Alejandra Ithurrart, Leticia S. Martínez, Juan M. Minoldo, Gabriela Cardillo, Daniela S. Palomo, Iris R. |
author_role |
author |
author2 |
Busso, Carlos Torres, Yanina Alejandra Ithurrart, Leticia S. Martínez, Juan M. Minoldo, Gabriela Cardillo, Daniela S. Palomo, Iris R. |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias de las Plantas, Botánica Desirable and undesirable grasses Leaf litter Nitrogen Perennial grasses |
topic |
Ciencias de las Plantas, Botánica Desirable and undesirable grasses Leaf litter Nitrogen Perennial grasses |
dc.description.none.fl_txt_mv |
Plant litter decomposition is critical for terrestrial ecosystem productivity. Poa ligularis Nees ex Steud and Nassella tenuis (Phil.) Barkworth are native, desirable perennial grasses in central Argentina’s rangelands. Amelichloa ambigua (Speg.)Arriaga&Barkworth is only consumed when a better forage is unavailable. Litter traps were used to collect aboveground litter during two years. In March 2012, six bags, each one containing either leaf blade (three bags, one per species) or root litter (three bags, one per species) of the three species were located belowthe canopy of each replicate plant of the studied species (hereafter referred to as ‘location’). Blade litter bags were located on the soil surface, and root litter bags buried at 10 cm soil depth. This allowed evaluation of the effects of defoliation, the different species canopies and the microbial community activity around their roots on decomposition of above- and belowground litter. For each species, twenty plants were either defoliated twice (5 cm stubble height) or remained undefoliated during the growing season. Litter bagswere collected after 2, 7, 13 and 24months incubation. The studywas repeated in 2013, with additional bagswere placed forNcontent determination on leaf blade and root litters. Aboveground litter productionwas highest in P. ligularis; however, no differences were observed among species when the effect of plant size was eliminated. Aboveground litter of desirable species had higher N content and decomposed faster than that of A. ambigua. The opposite was recorded for root litter. Defoliation had no effect on litter decomposition, but location effects were detected after one year of incubation. Desirable perennial grasses promoted organicmatter loss fromlitter, a key factor in increasing soil fertility in this semiarid ecosystem. |
description |
Plant litter decomposition is critical for terrestrial ecosystem productivity. Poa ligularis Nees ex Steud and Nassella tenuis (Phil.) Barkworth are native, desirable perennial grasses in central Argentina’s rangelands. Amelichloa ambigua (Speg.)Arriaga&Barkworth is only consumed when a better forage is unavailable. Litter traps were used to collect aboveground litter during two years. In March 2012, six bags, each one containing either leaf blade (three bags, one per species) or root litter (three bags, one per species) of the three species were located belowthe canopy of each replicate plant of the studied species (hereafter referred to as ‘location’). Blade litter bags were located on the soil surface, and root litter bags buried at 10 cm soil depth. This allowed evaluation of the effects of defoliation, the different species canopies and the microbial community activity around their roots on decomposition of above- and belowground litter. For each species, twenty plants were either defoliated twice (5 cm stubble height) or remained undefoliated during the growing season. Litter bagswere collected after 2, 7, 13 and 24months incubation. The studywas repeated in 2013, with additional bagswere placed forNcontent determination on leaf blade and root litters. Aboveground litter productionwas highest in P. ligularis; however, no differences were observed among species when the effect of plant size was eliminated. Aboveground litter of desirable species had higher N content and decomposed faster than that of A. ambigua. The opposite was recorded for root litter. Defoliation had no effect on litter decomposition, but location effects were detected after one year of incubation. Desirable perennial grasses promoted organicmatter loss fromlitter, a key factor in increasing soil fertility in this semiarid ecosystem. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
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 |
https://digital.cic.gba.gob.ar/handle/11746/10573 |
url |
https://digital.cic.gba.gob.ar/handle/11746/10573 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1071/RJ18070 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:CIC Digital (CICBA) instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires instacron:CICBA |
reponame_str |
CIC Digital (CICBA) |
collection |
CIC Digital (CICBA) |
instname_str |
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires |
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CICBA |
institution |
CICBA |
repository.name.fl_str_mv |
CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires |
repository.mail.fl_str_mv |
marisa.degiusti@sedici.unlp.edu.ar |
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score |
13.070432 |