Articles | Volume 17, issue 11
https://doi.org/10.5194/bg-17-2971-2020
https://doi.org/10.5194/bg-17-2971-2020
Research article
 | 
11 Jun 2020
Research article |  | 11 Jun 2020

The soil organic carbon stabilization potential of old and new wheat cultivars: a 13CO2-labeling study

Marijn Van de Broek, Shiva Ghiasi, Charlotte Decock, Andreas Hund, Samuel Abiven, Cordula Friedli, Roland A. Werner, and Johan Six

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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (23 Mar 2020) by Sara Vicca
AR by Marijn Van de Broek on behalf of the Authors (11 Apr 2020)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (15 Apr 2020) by Sara Vicca
RR by Stefan Karlowsky (29 Apr 2020)
RR by Anonymous Referee #2 (29 Apr 2020)
ED: Publish subject to technical corrections (29 Apr 2020) by Sara Vicca
AR by Marijn Van de Broek on behalf of the Authors (01 May 2020)  Author's response   Manuscript 
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Short summary
Four wheat cultivars were labeled with 13CO2 to quantify the effect of rooting depth and root biomass on the belowground transfer of organic carbon. We found no clear relation between the time since cultivar development and the amount of carbon inputs to the soil. Therefore, the hypothesis that wheat cultivars with a larger root biomass and deeper roots promote carbon stabilization was rejected. The amount of root biomass that will be stabilized in the soil on the long term is, however, unknown.
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