Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/26395
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dc.contributor.authorWookey, Philipen_UK
dc.contributor.authorBol, Rolanden_UK
dc.contributor.authorCaseldine, Christopher Jen_UK
dc.contributor.authorHarkness, Douglas Den_UK
dc.date.accessioned2017-12-21T02:13:12Z-
dc.date.available2017-12-21T02:13:12Zen_UK
dc.date.issued2002-02en_UK
dc.identifier.urihttp://hdl.handle.net/1893/26395-
dc.description.abstractWe studied the late Holocene foreland and adjacent unglaciated terrain of a small cirque glacier system in north Iceland to explore the relationship between soil/ surface age, vegetation and soil evolution, and C isotope signatures of respired CO2 Field-based sampling of respired CO2 from vegetation/soil monoliths across the chronosequence was used as the basis for an analysis of the 12C:13C:14C atom ratios of CO2 using Isotope Ratio Mass Spectrometry (IRMS) and Accelerator Mass Spectrometry (AMS). Residual soil organic matter (SOM) fractions (humic and humin) were also 14C-dated from each of the surfaces, vegetation described, and soil C and N contents analyzed. Our major conclusions are (1) that ecosystem respiration in this mid-alpine environment is strongly dominated by "young" C and is not related to the 14C age of residual SOM fractions; (2) δ13C values of respired CO2, by contrast, do vary both with age of surface and with absolute respiration rate, but there is no clear indication of any effects mediated by plant species and functional type and/or the degree of reworking of SOM by decomposer organisms; and (3) the 14C dating of residual SOM fractions, together with the soil profile characteristics (including tephra deposits) and vegetation cover, both suggest some radical disturbance in soil development and SOM formation at Site 1 (the oldest surface studied here), and no clear signs of classical succession when comparing Sites 1 to 3. Finally, in the light of these observations, the familiar concept of chronosequences, and the predictable processes of ecosystem development that they often imply, are challenged in a mid-alpine tundra setting where recent climate change and anthropogenic influences (e.g., grazing pressure) are superimposed upon time as an ecological factor.en_UK
dc.language.isoenen_UK
dc.publisherINSTAAR, University of Coloradoen_UK
dc.relationWookey P, Bol R, Caseldine CJ & Harkness DD (2002) Surface age, ecosystem development, and C isotope signatures of respired CO2 in an alpine environment, north Iceland. Arctic, Antarctic, and Alpine Research, 34 (1), pp. 76-87. https://doi.org/10.2307/1552511en_UK
dc.rightsThe publisher has not responded to our queries therefore this work cannot 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.rights.urihttp://www.rioxx.net/licenses/under-embargo-all-rights-reserveden_UK
dc.titleSurface age, ecosystem development, and C isotope signatures of respired CO2 in an alpine environment, north Icelanden_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-29en_UK
dc.rights.embargoreason[1552511.pdf] The publisher has not responded to our queries. This work cannot be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.identifier.doi10.2307/1552511en_UK
dc.citation.jtitleArctic, Antarctic, and Alpine Researchen_UK
dc.citation.issn1938-4246en_UK
dc.citation.issn1523-0430en_UK
dc.citation.volume34en_UK
dc.citation.issue1en_UK
dc.citation.spage76en_UK
dc.citation.epage87en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusVoR - Version of Recorden_UK
dc.author.emailphilip.wookey1@stir.ac.uken_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationInstitute of Grassland and Environmental Researchen_UK
dc.contributor.affiliationUniversity of Exeteren_UK
dc.contributor.affiliationNERC Radiocarbon Laboratoryen_UK
dc.identifier.isiWOS:000174856400011en_UK
dc.identifier.scopusid2-s2.0-0036220763en_UK
dc.identifier.wtid524132en_UK
dc.contributor.orcid0000-0001-5957-6424en_UK
dcterms.dateAccepted2002-02-28en_UK
dc.date.filedepositdate2017-12-19en_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionVoRen_UK
local.rioxx.authorWookey, Philip|0000-0001-5957-6424en_UK
local.rioxx.authorBol, Roland|en_UK
local.rioxx.authorCaseldine, Christopher J|en_UK
local.rioxx.authorHarkness, Douglas D|en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate2999-12-29en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved||en_UK
local.rioxx.filename1552511.pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source1523-0430en_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

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