Articles | Volume 3, issue 3
SOIL, 3, 139–152, 2017
https://doi.org/10.5194/soil-3-139-2017
SOIL, 3, 139–152, 2017
https://doi.org/10.5194/soil-3-139-2017

Original research article 22 Aug 2017

Original research article | 22 Aug 2017

A deeper look at the relationship between root carbon pools and the vertical distribution of the soil carbon pool

Ranae Dietzel et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after minor revisions (review by Editor) (30 May 2017) by Marie-France Dignac
AR by Ranae Dietzel on behalf of the Authors (15 Jun 2017)  Author's response    Manuscript
ED: Publish as is (29 Jun 2017) by Marie-France Dignac
ED: Publish subject to technical corrections (11 Jul 2017) by John Quinton(Executive Editor)
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Short summary
Roots deeper in the soil are made up of more carbon and less nitrogen compared to roots at shallower depths, which may help explain deep-carbon origin. A comparison of prairie and maize rooting systems showed that in moving from prairie to maize, a large, structural-tissue-dominated root carbon pool with slow turnover concentrated at shallow depths was replaced by a small, nonstructural-tissue-dominated root carbon pool with fast turnover evenly distributed in the soil profile.