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dc.contributor.author
Pancotto, Veronica Andrea
dc.contributor.author
Bodegom, P. M. van
dc.contributor.author
Hal, J. van
dc.contributor.author
Logtestijn, R. S. P. van
dc.contributor.author
Blokker, P.
dc.contributor.author
Toet, S.
dc.contributor.author
Aerts, R.
dc.date.available
2017-03-01T18:36:03Z
dc.date.issued
2010-04
dc.identifier.citation
Pancotto, Veronica Andrea; Bodegom, P. M. van; Hal, J. van; Logtestijn, R. S. P. van; Blokker, P.; et al.; N deposition and elevated CO2 on methane emissions: Differential responses of indirect effects compared to direct effects through litter chemistry feedbacks; American Geophysical Union; Journal of Geophysical Research; 115; G2; 4-2010; 1-10
dc.identifier.uri
http://hdl.handle.net/11336/13415
dc.description.abstract
Increases in atmospheric CO2 concentration and N deposition are expected to affect methane (CH4) production in soils and emission to the atmosphere, directly through increased plant litter production and indirectly through changes in substrate quality. We examined how CH4 emission responded to changes in litter quality under increased N and CO2, beyond differences in CH4 resulting from changes in litter production. We used senesced leaves from 13C-labeled plants of Molinia caerulea grown at elevated and ambient CO2 and affected by N fertilization to carry out two experiments: a laboratory litter incubation and a pot experiment. N fertilization increased N and decreased C concentrations in litter whereas elevated CO2 decreased litter quality as reflected in litter C and N concentrations and in the composition of lignin and saturated fatty acids within the litter. In contrast to our expectations, CH4 production in the laboratory incubation decreased when using litter from N-fertilized plants as substrate, whereas litter from elevated CO2 had no effect, compared to controls without N and at ambient CO2. Owing to high within-treatment variability in CH4 emissions, none of the treatment effects were reflected in the pot experiment. C mineralization rates were not affected by any of the treatments. The decrease in CH4 emissions due to indirect effects of N availability through litter quality changes (described here for the first time) contrast direct effects of N fertilization on CH4 production. The complex interaction of direct effects with indirect effects of increased N on litter quality may potentially result in a net decrease in CH4 emissions from wetlands in the long term.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ch4 Production And Emission
dc.subject
Carbon Mineralization
dc.subject
Nitrogen Deposition
dc.subject
Elevated Co2
dc.subject.classification
Ecología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
N deposition and elevated CO2 on methane emissions: Differential responses of indirect effects compared to direct effects through litter chemistry feedbacks
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-02-07T18:02:22Z
dc.identifier.eissn
2169-8961
dc.journal.volume
115
dc.journal.number
G2
dc.journal.pagination
1-10
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Bethesda
dc.description.fil
Fil: Pancotto, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
dc.description.fil
Fil: Bodegom, P. M. van. University Of Amsterdam; Países Bajos
dc.description.fil
Fil: Hal, J. van. University Of Amsterdam; Países Bajos
dc.description.fil
Fil: Logtestijn, R. S. P. van. University Of Amsterdam; Países Bajos
dc.description.fil
Fil: Blokker, P.. University Of Amsterdam; Países Bajos
dc.description.fil
Fil: Toet, S.. University Of Amsterdam; Países Bajos. University Of York; Reino Unido
dc.description.fil
Fil: Aerts, R.. University Of Amsterdam; Países Bajos
dc.journal.title
Journal of Geophysical Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1029/2009JG001099/full
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2009JG001099


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