Massive carbon addition to an organic-rich Andosol increased the subsoil but not the topsoil carbon stock

Zieger, Antonia; Kaiser, Klaus; Ríos Guayasamín, Pedro; Kaupenjohann, Martin

doi:https://doi.org/10.5194/bg-15-2743-2018

Articles | Volume 15, issue 9

https://doi.org/10.5194/bg-15-2743-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-15-2743-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 9

Research article

|

07 May 2018

Research article |

| 07 May 2018

Massive carbon addition to an organic-rich Andosol increased the subsoil but not the topsoil carbon stock

Antonia Zieger, Klaus Kaiser, Pedro Ríos Guayasamín, and Martin Kaupenjohann

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Final revised paper (published on 07 May 2018)
Supplement to the final revised paper
Preprint (discussion started on 02 Nov 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'comments', Anonymous Referee #2, 27 Nov 2017
- AC1: 'Response to the comments & one question', Antonia Zieger, 20 Dec 2017
RC2: 'Comments', Anonymous Referee #3, 29 Nov 2017
- AC2: 'Response to the comments', Antonia Zieger, 16 Jan 2018
RC3: 'review of manuscript: Massive carbon addition to an organic-rich Andosol did not increase the topsoil but the subsoil carbon stock', Anonymous Referee #4, 03 Dec 2017
- AC3: 'Response to comments', Antonia Zieger, 16 Jan 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (23 Jan 2018) by Yakov Kuzyakov

AR by Antonia Zieger on behalf of the Authors (09 Mar 2018) Author's response Manuscript

ED: Publish as is (22 Mar 2018) by Yakov Kuzyakov

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Short summary

We tested a current theory, which proposes an upper limit for organic carbon (OC) stocks independent of increasing carbon input for a soil with already large OC stocks. The soil received a large additional carbon input as sawdust. In response, only the OC stock in 25–50 cm depth increased significantly. We assume, that due to saturation in 0–25 cm, added OC migrates downwards and becomes retained in 25–50 cm. This indicates the possibility to sustainably increase already large OC stocks further.