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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1111/nph.12285
|2 doi
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|a eng
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|a Street, Lorna E
|e verfasserin
|4 aut
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|a The role of mosses in carbon uptake and partitioning in arctic vegetation
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|c 2013
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 24.01.2014
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|a Date Revised 16.04.2021
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|a published: Print-Electronic
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|a CommentIn: New Phytol. 2013 Jul;199(1):7-9. doi: 10.1111/nph.12334. - PMID 23713551
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|a Citation Status MEDLINE
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|a © 2013 The Authors. New Phytologist © 2013 New Phytologist Trust.
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|a The Arctic is already experiencing changes in plant community composition, so understanding the contribution of different vegetation components to carbon (C) cycling is essential in order to accurately quantify ecosystem C balance. Mosses contribute substantially to biomass, but their impact on carbon use efficiency (CUE) - the proportion of gross primary productivity (GPP) incorporated into growth - and aboveground versus belowground C partitioning is poorly known. We used (13) C pulse-labelling to trace assimilated C in mosses (Sphagnum sect. Acutifolia and Pleurozium schreberi) and in dwarf shrub-P. schreberi vegetation in sub-Arctic Finland. Based on (13) C pools and fluxes, we quantified the contribution of mosses to GPP, CUE and partitioning. Mosses incorporated 20 ± 9% of total ecosystem GPP into biomass. CUE of Sphagnum was 68-71%, that of P. schreberi was 62-81% and that of dwarf shrub-P. schreberi vegetation was 58-74%. Incorporation of C belowground was 10 ± 2% of GPP, while vascular plants alone incorporated 15 ± 4% of their fixed C belowground. We have demonstrated that mosses strongly influence C uptake and retention in Arctic dwarf shrub vegetation. They increase CUE, and the fraction of GPP partitioned aboveground. Arctic C models must include mosses to accurately represent ecosystem C dynamics
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Carbon Isotopes
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|a Carbon Dioxide
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|a Carbon
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|a Subke, Jens-Arne
|e verfasserin
|4 aut
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|a Sommerkorn, Martin
|e verfasserin
|4 aut
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|a Sloan, Victoria
|e verfasserin
|4 aut
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|a Ducrotoy, Helene
|e verfasserin
|4 aut
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|a Phoenix, Gareth K
|e verfasserin
|4 aut
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|a Williams, Mathew
|e verfasserin
|4 aut
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|i Enthalten in
|t The New phytologist
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|g 199(2013), 1 vom: 03. Juli, Seite 163-175
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