Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina

Autores
Gonzalez Roglich, Mariano; Swanson, Jennifer; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Woody plant encroachment is a widespread process of land cover change driven by a combination of local land use practices and regional to global environmental changes. Increases in woody plant cover alter the distribution of carbon in the ecosystem and can affect water and nutrient cycling. Although semiarid rangelands comprise almost half of the global land surface, our understanding on the effects of woody plant encroachment on carbon stocks in these ecosystems is uncertain ? studies have found both net C gains and losses. We measured, for the first time in South American semiarid savannas, ecosystem C stocks along a gradient of woody plant density across 30,000 km2 of the Caldenal in central Argentina. We characterized changes in C stocks in live biomass (woody and herbaceous, above- and belowground), litter, and soil organic carbon (to 1.5 m depth) pools along a woody plant cover gradient (0?94%). We found a significant increase in ecosystem C stocks with increasing woody cover, with mean values of 4.5, 8.4, 12.4, and 16.5 kg C m-2 for grasslands, shrublands, open and closed forests, respectively. Using dendrochronological data we estimated the average C accrual rate to be 104 g C m-2 yr-1 at the ecosystem (plant + soil) level. Woody plant cover and soil silt content were the two primary factors accounting for the variability of ecosystem C. We developed simple regression models that reliably predict soil, tree and ecosystem C stocks from basic field measurements of woody plant cover and soil silt content. These models could prove to be valuable tools for broad scale estimation if linked to regional soil maps and remotely sensed data, allowing for precise and spatially explicit estimation of C stocks and change at regional scales.
Fil: Gonzalez Roglich, Mariano. University Of Duke; Estados Unidos
Fil: Swanson, Jennifer. University Of Duke; Estados Unidos
Fil: Jobbagy Gampel, Esteban Gabriel. Universidad Nacional de San Luis; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina
Fil: Jackson, Robert B.. University Of Stanford; Estados Unidos
Materia
Caldenal Soil
Prosopis Caldenia
Biomass
Biogeochemistry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/14642
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Shifting carbon pools along a plant cover gradient in woody encroached savannas of central ArgentinaGonzalez Roglich, MarianoSwanson, JenniferJobbagy Gampel, Esteban GabrielJackson, Robert B.Caldenal SoilProsopis CaldeniaBiomassBiogeochemistryhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Woody plant encroachment is a widespread process of land cover change driven by a combination of local land use practices and regional to global environmental changes. Increases in woody plant cover alter the distribution of carbon in the ecosystem and can affect water and nutrient cycling. Although semiarid rangelands comprise almost half of the global land surface, our understanding on the effects of woody plant encroachment on carbon stocks in these ecosystems is uncertain ? studies have found both net C gains and losses. We measured, for the first time in South American semiarid savannas, ecosystem C stocks along a gradient of woody plant density across 30,000 km2 of the Caldenal in central Argentina. We characterized changes in C stocks in live biomass (woody and herbaceous, above- and belowground), litter, and soil organic carbon (to 1.5 m depth) pools along a woody plant cover gradient (0?94%). We found a significant increase in ecosystem C stocks with increasing woody cover, with mean values of 4.5, 8.4, 12.4, and 16.5 kg C m-2 for grasslands, shrublands, open and closed forests, respectively. Using dendrochronological data we estimated the average C accrual rate to be 104 g C m-2 yr-1 at the ecosystem (plant + soil) level. Woody plant cover and soil silt content were the two primary factors accounting for the variability of ecosystem C. We developed simple regression models that reliably predict soil, tree and ecosystem C stocks from basic field measurements of woody plant cover and soil silt content. These models could prove to be valuable tools for broad scale estimation if linked to regional soil maps and remotely sensed data, allowing for precise and spatially explicit estimation of C stocks and change at regional scales.Fil: Gonzalez Roglich, Mariano. University Of Duke; Estados UnidosFil: Swanson, Jennifer. University Of Duke; Estados UnidosFil: Jobbagy Gampel, Esteban Gabriel. Universidad Nacional de San Luis; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; ArgentinaFil: Jackson, Robert B.. University Of Stanford; Estados UnidosElsevier Science2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/14642Gonzalez Roglich, Mariano; Swanson, Jennifer; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.; Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina; Elsevier Science; Forest Ecology And Management; 331; 1-2014; 71-780378-1127enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378112714004782info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2014.07.035info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:40:57Zoai:ri.conicet.gov.ar:11336/14642instacron: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:34982025-10-15 15:40:57.378CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
title Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
spellingShingle Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
Gonzalez Roglich, Mariano
Caldenal Soil
Prosopis Caldenia
Biomass
Biogeochemistry
title_short Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
title_full Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
title_fullStr Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
title_full_unstemmed Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
title_sort Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina
dc.creator.none.fl_str_mv Gonzalez Roglich, Mariano
Swanson, Jennifer
Jobbagy Gampel, Esteban Gabriel
Jackson, Robert B.
author Gonzalez Roglich, Mariano
author_facet Gonzalez Roglich, Mariano
Swanson, Jennifer
Jobbagy Gampel, Esteban Gabriel
Jackson, Robert B.
author_role author
author2 Swanson, Jennifer
Jobbagy Gampel, Esteban Gabriel
Jackson, Robert B.
author2_role author
author
author
dc.subject.none.fl_str_mv Caldenal Soil
Prosopis Caldenia
Biomass
Biogeochemistry
topic Caldenal Soil
Prosopis Caldenia
Biomass
Biogeochemistry
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Woody plant encroachment is a widespread process of land cover change driven by a combination of local land use practices and regional to global environmental changes. Increases in woody plant cover alter the distribution of carbon in the ecosystem and can affect water and nutrient cycling. Although semiarid rangelands comprise almost half of the global land surface, our understanding on the effects of woody plant encroachment on carbon stocks in these ecosystems is uncertain ? studies have found both net C gains and losses. We measured, for the first time in South American semiarid savannas, ecosystem C stocks along a gradient of woody plant density across 30,000 km2 of the Caldenal in central Argentina. We characterized changes in C stocks in live biomass (woody and herbaceous, above- and belowground), litter, and soil organic carbon (to 1.5 m depth) pools along a woody plant cover gradient (0?94%). We found a significant increase in ecosystem C stocks with increasing woody cover, with mean values of 4.5, 8.4, 12.4, and 16.5 kg C m-2 for grasslands, shrublands, open and closed forests, respectively. Using dendrochronological data we estimated the average C accrual rate to be 104 g C m-2 yr-1 at the ecosystem (plant + soil) level. Woody plant cover and soil silt content were the two primary factors accounting for the variability of ecosystem C. We developed simple regression models that reliably predict soil, tree and ecosystem C stocks from basic field measurements of woody plant cover and soil silt content. These models could prove to be valuable tools for broad scale estimation if linked to regional soil maps and remotely sensed data, allowing for precise and spatially explicit estimation of C stocks and change at regional scales.
Fil: Gonzalez Roglich, Mariano. University Of Duke; Estados Unidos
Fil: Swanson, Jennifer. University Of Duke; Estados Unidos
Fil: Jobbagy Gampel, Esteban Gabriel. Universidad Nacional de San Luis; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina
Fil: Jackson, Robert B.. University Of Stanford; Estados Unidos
description Woody plant encroachment is a widespread process of land cover change driven by a combination of local land use practices and regional to global environmental changes. Increases in woody plant cover alter the distribution of carbon in the ecosystem and can affect water and nutrient cycling. Although semiarid rangelands comprise almost half of the global land surface, our understanding on the effects of woody plant encroachment on carbon stocks in these ecosystems is uncertain ? studies have found both net C gains and losses. We measured, for the first time in South American semiarid savannas, ecosystem C stocks along a gradient of woody plant density across 30,000 km2 of the Caldenal in central Argentina. We characterized changes in C stocks in live biomass (woody and herbaceous, above- and belowground), litter, and soil organic carbon (to 1.5 m depth) pools along a woody plant cover gradient (0?94%). We found a significant increase in ecosystem C stocks with increasing woody cover, with mean values of 4.5, 8.4, 12.4, and 16.5 kg C m-2 for grasslands, shrublands, open and closed forests, respectively. Using dendrochronological data we estimated the average C accrual rate to be 104 g C m-2 yr-1 at the ecosystem (plant + soil) level. Woody plant cover and soil silt content were the two primary factors accounting for the variability of ecosystem C. We developed simple regression models that reliably predict soil, tree and ecosystem C stocks from basic field measurements of woody plant cover and soil silt content. These models could prove to be valuable tools for broad scale estimation if linked to regional soil maps and remotely sensed data, allowing for precise and spatially explicit estimation of C stocks and change at regional scales.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/14642
Gonzalez Roglich, Mariano; Swanson, Jennifer; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.; Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina; Elsevier Science; Forest Ecology And Management; 331; 1-2014; 71-78
0378-1127
url http://hdl.handle.net/11336/14642
identifier_str_mv Gonzalez Roglich, Mariano; Swanson, Jennifer; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.; Shifting carbon pools along a plant cover gradient in woody encroached savannas of central Argentina; Elsevier Science; Forest Ecology And Management; 331; 1-2014; 71-78
0378-1127
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378112714004782
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foreco.2014.07.035
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.221938

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