Articles | Volume 1, issue 2
SOIL, 1, 537–542, 2015
https://doi.org/10.5194/soil-1-537-2015
SOIL, 1, 537–542, 2015
https://doi.org/10.5194/soil-1-537-2015

Short communication 28 Jul 2015

Short communication | 28 Jul 2015

14C in cropland soil of a long-term field trial – experimental variability and implications for estimating carbon turnover

J. Leifeld and J. Mayer

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Status: closed
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (19 May 2015) by Boris Jansen
AR by Jens Leifeld on behalf of the Authors (30 Jun 2015)  Author's response    Manuscript
ED: Publish as is (04 Jul 2015) by Boris Jansen
ED: Publish as is (08 Jul 2015) by Kristof Van Oost(Executive Editor)
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Short summary
We present 14C data for field replicates of a controlled agricultural long-term experiment. We show that 14C variability is, on average, 12 times that of the analytical precision of the 14C measurement. Experimental 14C variability is related to neither management nor soil depth. Application of a simple carbon turnover model reveals that experimental variability of radiocarbon results in higher absolute uncertainties of estimated carbon turnover time for deeper soil layers.