Articles | Volume 6, issue 1
https://doi.org/10.5194/soil-6-115-2020
https://doi.org/10.5194/soil-6-115-2020
Original research article
 | 
23 Mar 2020
Original research article |  | 23 Mar 2020

Depletion of soil carbon and aggregation after strong warming of a subarctic Andosol under forest and grassland cover

Christopher Poeplau, Páll Sigurðsson, and Bjarni D. Sigurdsson

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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 major revisions (17 Nov 2019) by Cornelia Rumpel
AR by Christopher Poeplau on behalf of the Authors (18 Nov 2019)  Author's response   Manuscript 
ED: Publish subject to minor revisions (review by editor) (05 Feb 2020) by Cornelia Rumpel
AR by Christopher Poeplau on behalf of the Authors (05 Feb 2020)  Author's response   Manuscript 
ED: Publish as is (12 Feb 2020) by Cornelia Rumpel
ED: Publish as is (19 Feb 2020) by Kristof Van Oost (Executive editor)
AR by Christopher Poeplau on behalf of the Authors (19 Feb 2020)  Manuscript 
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Short summary
Global warming leads to increased mineralisation of soil organic matter, inducing a positive climate–carbon cycle feedback loop. Loss of organic matter can be associated with loss of soil structure. Here we use a strong geothermal gradient to investigate soil warming effects on soil organic matter and structural parameters in subarctic forest and grassland soils. Strong depletion of organic matter caused a collapse of aggregates, highlighting the potential impact of warming on soil function.