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dc.contributor.author
Berthrong, Sean T.
dc.contributor.author
Piñeiro, Gervasio
dc.contributor.author
Jobbagy Gampel, Esteban Gabriel
dc.contributor.author
Jackson, Robert B.
dc.date.available
2017-04-20T22:06:38Z
dc.date.issued
2012-01
dc.identifier.citation
Berthrong, Sean T.; Piñeiro, Gervasio; Jobbagy Gampel, Esteban Gabriel; Jackson, Robert B.; Soil C and N changes with afforestation of grasslands across gradients of precipitation and plantation age; Ecological Society of America; Ecological Applications; 22; 1; 1-2012; 76-86
dc.identifier.issn
1051-0761
dc.identifier.uri
http://hdl.handle.net/11336/15539
dc.description.abstract
Afforestation, the conversion of unforested lands to forests, is a tool for sequestering anthropogenic carbon dioxide into plant biomass. However, in addition to altering biomass, afforestation can have substantial effects on soil organic carbon (SOC) pools, some of which have much longer turnover times than plant biomass. An increasing body of evidence suggests that the effect of afforestation on SOC may depend on mean annual precipitation (MAP). The goal of this study was to test how labile and bulk pools of SOC and total soil nitrogen (TN) change with afforestation across a rainfall gradient of 600–1500 mm in the Rio de la Plata grasslands of Argentina and Uruguay. The sites were all former grasslands planted with Eucalyptus spp. Overall, we found that afforestation increased (up to 1012 kg C·ha−1·yr−1) or decreased (as much as 1294 kg C·ha−1·yr−1) SOC pools in this region and that these changes were significantly related to MAP. Drier sites gained, and wetter sites lost, SOC and TN (r2 = 0.59, P = 0.003; and r2 = 0.57, P = 0.004, respectively). Labile C and N in microbial biomass and extractable soil pools followed similar patterns to bulk SOC and TN. Interestingly, drier sites gained more SOC and TN as plantations aged, while losses reversed as plantations aged in wet sites, suggesting that plantation age in addition to precipitation is a critical driver of changes in soil organic matter with afforestation. This new evidence implies that longer intervals between harvests for plantations could improve SOC storage, ameliorating the negative trends found in humid sites. Our results suggest that the value of afforestation as a carbon sequestration tool should be considered in the context of precipitation and age of the forest stand.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Ecological Society of America
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Afforestations
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Argentina
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Eucalyptus Plantation
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Precipitation
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Soil Nitrogen
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Soil Organic Carbon
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Uruguay
dc.subject.classification
Ecología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Soil C and N changes with afforestation of grasslands across gradients of precipitation and plantation age
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-04-18T14:26:21Z
dc.journal.volume
22
dc.journal.number
1
dc.journal.pagination
76-86
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Washington
dc.description.fil
Fil: Berthrong, Sean T.. University Of Duke; Estados Unidos
dc.description.fil
Fil: 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; Argentina
dc.description.fil
Fil: Jobbagy Gampel, Esteban Gabriel. 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 ; Argentina
dc.description.fil
Fil: Jackson, Robert B.. University Of Duke; Estados Unidos
dc.journal.title
Ecological Applications
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1890/10-2210.1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1890/10-2210.1/abstract
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