Stream acidification and base cation losses with grassland afforestation

Autores
Farley, Kathleen A.; Piñeiro, Gervasio; Palmer, Sheila M.; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Afforestation of natural grasslands with fast-growing pine and eucalyptus species is increasing globally, but little is known about its effect on ecosystems and watersheds and, ultimately, the quality of water resources. To investigate the biogeochemical and hydrological consequences of this land use change, we sampled stream water in paired watersheds in Uruguay and Argentina. In watersheds planted with pine, we found no change in stream pH following afforestation, while in watersheds planted with eucalyptus, pH was 0.7 units lower on average than in streams draining grasslands. To further investigate the mechanism behind the decrease in pH, we sampled soils and streams of eucalypt catchments in Uruguay and analyzed exchangeable base cation concentrations, alkalinity, and dissolved inorganic carbon (DIC). At these sites, Ca, Mg, and Na concentrations were >30% lower in afforested soils than in grassland soils, and pH was significantly lower below 10 cm depth. Stream measurements taken over three years illustrate that these soil changes were also manifested in stream water chemistry. In the eucalypt watersheds, base cation concentrations were >40% lower, and alkalinity and DIC were halved in stream water. A test with data from additional sites where both pines and eucalypts were planted nearby showed that eucalyptus has a stronger acidifying effect than pine. Overall, our data suggest that repeated harvesting cycles at some locations could negatively impact the soil store of base cations and reduce downstream water quality. Our results can be used to help minimize negative impacts of this land use and to inform policy in this and other regions targeted for plantation forestry
Fil: Farley, Kathleen A.. San Diego State University; Estados Unidos
Fil: Piñeiro, Gervasio. University of Duke; Estados Unidos. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Palmer, Sheila M.. University of Leeds. School of Geography; Reino Unido
Fil: Jobbagy Gampel, Esteban Gabriel. University of Duke; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina
Fil: Jackson, Robert B.. University of Duke; Estados Unidos
Materia
SOIL ACIDITY
BASE CATIONS
WATER QUALITY
EUCALYPTUS
PINUS
LAND USE CHANGE
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:11336/135148

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network_name_str CONICET Digital (CONICET)
spelling Stream acidification and base cation losses with grassland afforestationFarley, Kathleen A.Piñeiro, GervasioPalmer, Sheila M.Jobbagy Gampel, Esteban GabrielJackson, Robert B.SOIL ACIDITYBASE CATIONSWATER QUALITYEUCALYPTUSPINUSLAND USE CHANGEhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Afforestation of natural grasslands with fast-growing pine and eucalyptus species is increasing globally, but little is known about its effect on ecosystems and watersheds and, ultimately, the quality of water resources. To investigate the biogeochemical and hydrological consequences of this land use change, we sampled stream water in paired watersheds in Uruguay and Argentina. In watersheds planted with pine, we found no change in stream pH following afforestation, while in watersheds planted with eucalyptus, pH was 0.7 units lower on average than in streams draining grasslands. To further investigate the mechanism behind the decrease in pH, we sampled soils and streams of eucalypt catchments in Uruguay and analyzed exchangeable base cation concentrations, alkalinity, and dissolved inorganic carbon (DIC). At these sites, Ca, Mg, and Na concentrations were >30% lower in afforested soils than in grassland soils, and pH was significantly lower below 10 cm depth. Stream measurements taken over three years illustrate that these soil changes were also manifested in stream water chemistry. In the eucalypt watersheds, base cation concentrations were >40% lower, and alkalinity and DIC were halved in stream water. A test with data from additional sites where both pines and eucalypts were planted nearby showed that eucalyptus has a stronger acidifying effect than pine. Overall, our data suggest that repeated harvesting cycles at some locations could negatively impact the soil store of base cations and reduce downstream water quality. Our results can be used to help minimize negative impacts of this land use and to inform policy in this and other regions targeted for plantation forestryFil: Farley, Kathleen A.. San Diego State University; Estados UnidosFil: Piñeiro, Gervasio. University of Duke; Estados Unidos. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Palmer, Sheila M.. University of Leeds. School of Geography; Reino UnidoFil: Jobbagy Gampel, Esteban Gabriel. University of Duke; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; ArgentinaFil: Jackson, Robert B.. University of Duke; Estados UnidosAmerican Geophysical Union2008-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/135148Farley, Kathleen A.; Piñeiro, Gervasio; Palmer, Sheila M.; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.; Stream acidification and base cation losses with grassland afforestation; American Geophysical Union; Water Resources Research; 44; 7; 7-2008; 1-110043-1397CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1029/2007WR006659info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007WR006659info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:04Zoai:ri.conicet.gov.ar:11336/135148instacron: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:34982025-09-29 10:14:04.513CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Stream acidification and base cation losses with grassland afforestation
title Stream acidification and base cation losses with grassland afforestation
spellingShingle Stream acidification and base cation losses with grassland afforestation
Farley, Kathleen A.
SOIL ACIDITY
BASE CATIONS
WATER QUALITY
EUCALYPTUS
PINUS
LAND USE CHANGE
title_short Stream acidification and base cation losses with grassland afforestation
title_full Stream acidification and base cation losses with grassland afforestation
title_fullStr Stream acidification and base cation losses with grassland afforestation
title_full_unstemmed Stream acidification and base cation losses with grassland afforestation
title_sort Stream acidification and base cation losses with grassland afforestation
dc.creator.none.fl_str_mv Farley, Kathleen A.
Piñeiro, Gervasio
Palmer, Sheila M.
Jobbagy Gampel, Esteban Gabriel
Jackson, Robert B.
author Farley, Kathleen A.
author_facet Farley, Kathleen A.
Piñeiro, Gervasio
Palmer, Sheila M.
Jobbagy Gampel, Esteban Gabriel
Jackson, Robert B.
author_role author
author2 Piñeiro, Gervasio
Palmer, Sheila M.
Jobbagy Gampel, Esteban Gabriel
Jackson, Robert B.
author2_role author
author
author
author
dc.subject.none.fl_str_mv SOIL ACIDITY
BASE CATIONS
WATER QUALITY
EUCALYPTUS
PINUS
LAND USE CHANGE
topic SOIL ACIDITY
BASE CATIONS
WATER QUALITY
EUCALYPTUS
PINUS
LAND USE CHANGE
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Afforestation of natural grasslands with fast-growing pine and eucalyptus species is increasing globally, but little is known about its effect on ecosystems and watersheds and, ultimately, the quality of water resources. To investigate the biogeochemical and hydrological consequences of this land use change, we sampled stream water in paired watersheds in Uruguay and Argentina. In watersheds planted with pine, we found no change in stream pH following afforestation, while in watersheds planted with eucalyptus, pH was 0.7 units lower on average than in streams draining grasslands. To further investigate the mechanism behind the decrease in pH, we sampled soils and streams of eucalypt catchments in Uruguay and analyzed exchangeable base cation concentrations, alkalinity, and dissolved inorganic carbon (DIC). At these sites, Ca, Mg, and Na concentrations were >30% lower in afforested soils than in grassland soils, and pH was significantly lower below 10 cm depth. Stream measurements taken over three years illustrate that these soil changes were also manifested in stream water chemistry. In the eucalypt watersheds, base cation concentrations were >40% lower, and alkalinity and DIC were halved in stream water. A test with data from additional sites where both pines and eucalypts were planted nearby showed that eucalyptus has a stronger acidifying effect than pine. Overall, our data suggest that repeated harvesting cycles at some locations could negatively impact the soil store of base cations and reduce downstream water quality. Our results can be used to help minimize negative impacts of this land use and to inform policy in this and other regions targeted for plantation forestry
Fil: Farley, Kathleen A.. San Diego State University; Estados Unidos
Fil: Piñeiro, Gervasio. University of Duke; Estados Unidos. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Palmer, Sheila M.. University of Leeds. School of Geography; Reino Unido
Fil: Jobbagy Gampel, Esteban Gabriel. University of Duke; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina
Fil: Jackson, Robert B.. University of Duke; Estados Unidos
description Afforestation of natural grasslands with fast-growing pine and eucalyptus species is increasing globally, but little is known about its effect on ecosystems and watersheds and, ultimately, the quality of water resources. To investigate the biogeochemical and hydrological consequences of this land use change, we sampled stream water in paired watersheds in Uruguay and Argentina. In watersheds planted with pine, we found no change in stream pH following afforestation, while in watersheds planted with eucalyptus, pH was 0.7 units lower on average than in streams draining grasslands. To further investigate the mechanism behind the decrease in pH, we sampled soils and streams of eucalypt catchments in Uruguay and analyzed exchangeable base cation concentrations, alkalinity, and dissolved inorganic carbon (DIC). At these sites, Ca, Mg, and Na concentrations were >30% lower in afforested soils than in grassland soils, and pH was significantly lower below 10 cm depth. Stream measurements taken over three years illustrate that these soil changes were also manifested in stream water chemistry. In the eucalypt watersheds, base cation concentrations were >40% lower, and alkalinity and DIC were halved in stream water. A test with data from additional sites where both pines and eucalypts were planted nearby showed that eucalyptus has a stronger acidifying effect than pine. Overall, our data suggest that repeated harvesting cycles at some locations could negatively impact the soil store of base cations and reduce downstream water quality. Our results can be used to help minimize negative impacts of this land use and to inform policy in this and other regions targeted for plantation forestry
publishDate 2008
dc.date.none.fl_str_mv 2008-07
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/11336/135148
Farley, Kathleen A.; Piñeiro, Gervasio; Palmer, Sheila M.; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.; Stream acidification and base cation losses with grassland afforestation; American Geophysical Union; Water Resources Research; 44; 7; 7-2008; 1-11
0043-1397
CONICET Digital
CONICET
url http://hdl.handle.net/11336/135148
identifier_str_mv Farley, Kathleen A.; Piñeiro, Gervasio; Palmer, Sheila M.; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.; Stream acidification and base cation losses with grassland afforestation; American Geophysical Union; Water Resources Research; 44; 7; 7-2008; 1-11
0043-1397
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1029/2007WR006659
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007WR006659
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 American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
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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