Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLeith, Fraser Ien_UK
dc.contributor.authorGarnett, Mark Hen_UK
dc.contributor.authorDinsmore, Kerry Jen_UK
dc.contributor.authorBillett, Michaelen_UK
dc.contributor.authorHeal, Kate Ven_UK
dc.description.abstractRadiocarbon isotopes are increasingly being used to investigate the age and source of carbon released from peatlands. Here we use combined14C and δ13C measurements to determine the isotopic composition of soil and soil decomposition products [dissolved organic carbon (DOC), CO2and CH4] in a peatland–riparian–stream transect, to establish the isotopic signature and potential connectivity between carbon pools. Sampling was conducted during two time periods in 2012 to investigate processes under different temperature, hydrological and flux conditions. Isotopic differences existed in the peatland and riparian zone soil organic matter as a result of the riparian depositional formation. The peatland had a mean radiocarbon age of 551±133years BP, with age increasing with depth, and δ13C values consistent with C3 plant material as the primary source. In contrast the riparian zone had a much older radiocarbon age of 1,055±107years BP and showed no age/depth relationship; δ13C in the riparian zone was also consistent with C3 plant material. With the exception of DOC in September, soil decomposition products were predominately >100%modern with14C values consistent with derivation from organic matter fixed in the previous 5years. Emissions of CO2and CH4from the soil surface were also modern. In contrast, CO2and CH4evaded from the stream surface was older (CH4: 310–537years BP, CO2: 36years BP to modern) and contained a more complex mix of sources combining soil organic matter and geogenic carbon. The results suggest considerable vertical transport of modern carbon to depth within the soil profile. The importance of modern recently fixed carbon and the differences between riparian and stream isotopic signatures suggests that the peatland (not the riparian zone) is the most important source of carbon to stream water.en_UK
dc.relationLeith FI, Garnett MH, Dinsmore KJ, Billett M & Heal KV (2014) Source and age of dissolved and gaseous carbon in a peatland-riparian-stream continuum: A dual isotope (14C and δ13C) analysis. Biogeochemistry, 119 (1-3), pp. 415-433.
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.en_UK
dc.subjectAquatic exporten_UK
dc.subjectRiparian zoneen_UK
dc.titleSource and age of dissolved and gaseous carbon in a peatland-riparian-stream continuum: A dual isotope (14C and δ13C) analysisen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Leith et al_Biogeochemistry_2014.pdf] The 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.en_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)en_UK
dc.contributor.affiliationNERC Radiocarbon Facility (Environment)en_UK
dc.contributor.affiliationCentre for Ecology & Hydrology (CEH)en_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of Edinburghen_UK
rioxxterms.apcnot requireden_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorLeith, Fraser I|en_UK
local.rioxx.authorGarnett, Mark H|en_UK
local.rioxx.authorDinsmore, Kerry J|en_UK
local.rioxx.authorBillett, Michael|0000-0003-3737-6063en_UK
local.rioxx.authorHeal, Kate V|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenameLeith et al_Biogeochemistry_2014.pdfen_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

Files in This Item:
File Description SizeFormat 
Leith et al_Biogeochemistry_2014.pdfFulltext - Published Version688.15 kBAdobe PDFUnder Embargo until 2999-12-07    Request a copy

This item is protected by original copyright

Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

The metadata of the records in the Repository are available under the CC0 public domain dedication: No Rights Reserved

If you believe that any material held in STORRE infringes copyright, please contact providing details and we will remove the Work from public display in STORRE and investigate your claim.