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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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.