Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/3321
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dc.contributor.authorSubke, Jens-Arne-
dc.contributor.authorVallack, Harry W-
dc.contributor.authorMagnusson, Tord-
dc.contributor.authorKeel, Sonja G-
dc.contributor.authorMetcalfe, Daniel B-
dc.contributor.authorHogberg, Peter-
dc.contributor.authorIneson, Phil-
dc.date.accessioned2012-09-03T23:32:25Z-
dc.date.issued2009-07-
dc.identifier.urihttp://hdl.handle.net/1893/3321-
dc.description.abstractPhysical diffusion of isotopic tracers into and out of soil pores causes considerable uncertainty for the timing and magnitude of plant belowground allocation in pulse-labelling experiments. Here, we partitioned soil CO(2) isotopic fluxes into abiotic tracer flux (physical return), heterotrophic flux, and autotrophic flux contributions following (13)CO(2) labelling of a Swedish Pinus sylvestris forest. Soil CO(2) efflux and its isotopic composition from a combination of deep and surface soil collars was monitored using a field- deployed mass spectrometer. Additionally, (13)CO(2) within the soil profile was monitored. Physical (abiotic) efflux of (13)CO(2) from soil pore spaces was found to be significant for up to 48 h after pulse labelling, and equalled the amount of biotic label flux over 6 d. Measured and modelled changes in (13)CO(2) concentration throughout the soil profile corroborated these results. Tracer return via soil CO(2) efflux correlated significantly with the proximity of collars to trees, while daily amplitudes of total flux (including heterotrophic and autotrophic sources) showed surprising time shifts compared with heterotrophic fluxes. The results show for the first time the significance of the confounding influence of physical isotopic CO(2)-tracer return from the soil matrix, calling for the inclusion of meaningful control treatments in future pulse-chase experiments.en_UK
dc.language.isoen-
dc.publisherWiley-Blackwell-
dc.relationSubke J, Vallack HW, Magnusson T, Keel SG, Metcalfe DB, Hogberg P & Ineson P (2009) Short-term dynamics of abiotic and biotic soil 13CO2 effluxes after in situ 13CO2 pulse labelling of a boreal pine forest, New Phytologist, 183 (2), pp. 349-357.-
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author; you can only request a copy if you wish to use this work for your own research or private study.-
dc.subject13CO2en_UK
dc.subjectautotrophic respirationen_UK
dc.subjectpulse labellingen_UK
dc.subjectsoil CO2 effluxen_UK
dc.subjectsoil CO2 efflux partitioningen_UK
dc.subjectsoil CO2 transport modellingen_UK
dc.subjectstable isotopesen_UK
dc.subject.lcshSoil ecology-
dc.subject.lcshSoil chemistry-
dc.subject.lcshForest ecology-
dc.subject.lcshCarbon dioxide Environmental aspects-
dc.titleShort-term dynamics of abiotic and biotic soil 13CO2 effluxes after in situ 13CO2 pulse labelling of a boreal pine foresten_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-31T00:00:00Z-
dc.rights.embargoreasonThe publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.-
dc.identifier.doihttp://dx.doi.org/10.1111/j.1469-8137.2009.02883.x-
dc.citation.jtitleNew Phytologist-
dc.citation.issn0028-646X-
dc.citation.volume183-
dc.citation.issue2-
dc.citation.spage349-
dc.citation.epage357-
dc.citation.publicationstatusPublished-
dc.citation.peerreviewedRefereed-
dc.type.statusPublisher version (final published refereed version)-
dc.author.emailjens-arne.subke@stir.ac.uk-
dc.contributor.affiliationBiological and Environmental Sciences-
dc.contributor.affiliationUniversity of York-
dc.contributor.affiliationSwedish University of Agricultural Sciences-
dc.contributor.affiliationSwedish University of Agricultural Sciences-
dc.contributor.affiliationSwedish University of Agricultural Sciences-
dc.contributor.affiliationSwedish University of Agricultural Sciences-
dc.contributor.affiliationUniversity of York-
dc.rights.embargoterms2999-12-31-
dc.rights.embargoliftdate2999-12-31-
Appears in Collections:Biological and Environmental Sciences Journal Articles

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