Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions

Soil organic carbon formation remains poorly understood despite its importance for human livelihoods. Uncertainties remain for the relative contributions of aboveground, root, and rhizodeposition inputs to particulate (POC) and mineral-Associated (MAOC) organic carbon fractions. Combining a novel fr...

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Autores: Villarino, Sebastián Horacio, Pinto, Priscila, Jackson, Robert B., Piñeiro, Gervasio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/164549
Acceso en línea:http://hdl.handle.net/11336/164549
Access Level:acceso abierto
Palabra clave:SOIL CARBON
MINERAL‐ASSOCIATED ORGANIC MATTER
PARTICULATE ORGANIC MATTER
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
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network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Plant rhizodeposition: A key factor for soil organic matter formation in stable fractionsVillarino, Sebastián HoracioPinto, PriscilaJackson, Robert B.Piñeiro, GervasioSOIL CARBONMINERAL‐ASSOCIATED ORGANIC MATTERPARTICULATE ORGANIC MATTERhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Soil organic carbon formation remains poorly understood despite its importance for human livelihoods. Uncertainties remain for the relative contributions of aboveground, root, and rhizodeposition inputs to particulate (POC) and mineral-Associated (MAOC) organic carbon fractions. Combining a novel framework with isotope tracer studies, we quantified POC and MAOC formation efficiencies (% of C-inputs incorporated into each fraction). We found that rhizodeposition inputs have the highest MAOC formation efficiency (46%) as compared to roots (9%) or aboveground inputs (7%). In addition, rhizodeposition unexpectedly reduced POC formation, likely because it increased decomposition rates of new POC. Conversely, root biomass inputs have the highest POC formation efficiency (19%). Therefore, rhizodeposition and roots appear to play opposite but complementary roles for building MAOC and POC fractions.Fil: Villarino, Sebastián Horacio. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata; ArgentinaFil: Pinto, Priscila. 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: Jackson, Robert B.. University of Stanford; Estados UnidosFil: Piñeiro, Gervasio. 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; ArgentinaScience Advances is the American Association for the Advancement of Science2021-04info: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/11336/164549Villarino, Sebastián Horacio; Pinto, Priscila; Jackson, Robert B.; Piñeiro, Gervasio; Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions; Science Advances is the American Association for the Advancement of Science; Science Advances; 7; 16; 4-2021; 1-142375-2548CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://advances.sciencemag.org/lookup/doi/10.1126/sciadv.abd3176info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.abd3176info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:23:15Zoai:ri.conicet.gov.ar:11336/164549instacron: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:34982024-05-08 14:23:15.945CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
title Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
spellingShingle Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
Villarino, Sebastián Horacio
SOIL CARBON
MINERAL‐ASSOCIATED ORGANIC MATTER
PARTICULATE ORGANIC MATTER
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
title_short Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
title_full Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
title_fullStr Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
title_full_unstemmed Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
title_sort Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions
dc.creator.none.fl_str_mv Villarino, Sebastián Horacio
Pinto, Priscila
Jackson, Robert B.
Piñeiro, Gervasio
author Villarino, Sebastián Horacio
author_facet Villarino, Sebastián Horacio
Pinto, Priscila
Jackson, Robert B.
Piñeiro, Gervasio
author_role author
author2 Pinto, Priscila
Jackson, Robert B.
Piñeiro, Gervasio
author2_role author
author
author
dc.subject.none.fl_str_mv SOIL CARBON
MINERAL‐ASSOCIATED ORGANIC MATTER
PARTICULATE ORGANIC MATTER
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
topic SOIL CARBON
MINERAL‐ASSOCIATED ORGANIC MATTER
PARTICULATE ORGANIC MATTER
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
description Soil organic carbon formation remains poorly understood despite its importance for human livelihoods. Uncertainties remain for the relative contributions of aboveground, root, and rhizodeposition inputs to particulate (POC) and mineral-Associated (MAOC) organic carbon fractions. Combining a novel framework with isotope tracer studies, we quantified POC and MAOC formation efficiencies (% of C-inputs incorporated into each fraction). We found that rhizodeposition inputs have the highest MAOC formation efficiency (46%) as compared to roots (9%) or aboveground inputs (7%). In addition, rhizodeposition unexpectedly reduced POC formation, likely because it increased decomposition rates of new POC. Conversely, root biomass inputs have the highest POC formation efficiency (19%). Therefore, rhizodeposition and roots appear to play opposite but complementary roles for building MAOC and POC fractions.
publishDate 2021
dc.date.none.fl_str_mv 2021-04
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/11336/164549
Villarino, Sebastián Horacio; Pinto, Priscila; Jackson, Robert B.; Piñeiro, Gervasio; Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions; Science Advances is the American Association for the Advancement of Science; Science Advances; 7; 16; 4-2021; 1-14
2375-2548
CONICET Digital
CONICET
url http://hdl.handle.net/11336/164549
identifier_str_mv Villarino, Sebastián Horacio; Pinto, Priscila; Jackson, Robert B.; Piñeiro, Gervasio; Plant rhizodeposition: A key factor for soil organic matter formation in stable fractions; Science Advances is the American Association for the Advancement of Science; Science Advances; 7; 16; 4-2021; 1-14
2375-2548
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://advances.sciencemag.org/lookup/doi/10.1126/sciadv.abd3176
info:eu-repo/semantics/altIdentifier/doi/10.1126/sciadv.abd3176
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 Science Advances is the American Association for the Advancement of Science
publisher.none.fl_str_mv Science Advances is the American Association for the Advancement of Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15,812455

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