Modelling the genesis of equatorial podzols: age and implications for carbon fluxes

Doupoux, Cédric; Merdy, Patricia; Montes, Célia Régina; Nunan, Naoise; Melfi, Adolpho José; Pereira, Osvaldo José Ribeiro; Lucas, Yves

doi:https://doi.org/10.5194/bg-14-2429-2017

Articles | Volume 14, issue 9

https://doi.org/10.5194/bg-14-2429-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-14-2429-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 9

Research article

|

12 May 2017

Research article |

| 12 May 2017

Modelling the genesis of equatorial podzols: age and implications for carbon fluxes

Cédric Doupoux, Patricia Merdy, Célia Régina Montes, Naoise Nunan, Adolpho José Melfi, Osvaldo José Ribeiro Pereira, and Yves Lucas

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Final revised paper (published on 12 May 2017)
Preprint (discussion started on 18 Jan 2017)

Interactive discussion

Status: closed

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

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RC1: 'Comment on Doupoux et al.', Carlos Sierra, 17 Feb 2017
- AC1: 'Response to Dr. C.A. Sierra', Cédric DOUPOUX, 08 Mar 2017
  - AC2: 'Version of the manuscript corrected after the Referee comment and the Author's response', Cédric DOUPOUX, 09 Mar 2017
RC2: 'review report', Anonymous Referee #2, 13 Mar 2017
- AC3: 'Response to Referee #2', Cédric DOUPOUX, 24 Mar 2017

Peer-review completion

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

ED: Reconsider after major revisions (24 Mar 2017) by Victor Brovkin

AR by Cédric DOUPOUX on behalf of the Authors (05 Apr 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (05 Apr 2017) by Victor Brovkin

RR by Carlos Sierra (07 Apr 2017)

ED: Publish as is (11 Apr 2017) by Victor Brovkin

Short summary

Amazonian podzol soils store huge amounts of carbon and play a key role in transferring organic matter to the Amazon River. We modelled their formation by constraining both total carbon and radiocarbon. We found that the most waterlogged zones of the podzolized areas are the main source of dissolved organic matter found in the river network. The genesis time calculated considering the more likely settings runs to around 15–25 and 150–250 kyr for young and old podzols, respectively.