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dc.contributor.author
Colombi, Tino
dc.contributor.author
Walder, Florian
dc.contributor.author
Büchi, Lucie
dc.contributor.author
Sommer, Marlies
dc.contributor.author
Liu, Kexing
dc.contributor.author
Six, Johan
dc.contributor.author
Van der Heijden, Marcel G.A.
dc.contributor.author
Charles, Raphaël
dc.contributor.author
Keller, Thomas
dc.date.accessioned
2019-03-29T08:38:31Z
dc.date.available
2019-03-29T04:07:19Z
dc.date.available
2019-03-29T08:38:31Z
dc.date.issued
2019
dc.identifier.issn
2199-3971
dc.identifier.issn
2199-398X
dc.identifier.other
10.5194/soil-5-91-2019
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/334548
dc.identifier.doi
10.3929/ethz-b-000334548
dc.description.abstract
Arable soils may act as a sink in the global carbon cycle, but the prediction of their potential for carbon sequestration remains challenging. Amongst other factors, soil aeration is known to influence root growth and microbial activity and thus inputs and decomposition of soil organic carbon. However, the influence of soil aeration on soil organic carbon content has been explored only little, especially at the farm level. Here, we investigated relationships between gas transport properties and organic carbon content in the topsoil and subsoil of 30 fields of individual farms, covering a wide range of textural composition. The fields were managed either conventionally, organically, or according to no-till practice. Despite considerable overlap between the management systems, we found that tillage increased soil gas transport capability in the topsoil, while organic farming resulted in higher soil organic carbon content. Remarkably, higher gas transport capability was associated with higher soil organic carbon content, both in the topsoil and subsoil (0.53 < R2 < 0.71). Exogenous organic carbon inputs in the form of crop residues and organic amendments, in contrast, were not related to soil organic carbon content. Based on this, we conjecture that higher gas transport capability resulted in improved conditions for root growth, which eventually led to increased input of soil organic carbon. Our findings show the importance of soil aeration for carbon storage in soil and highlight the need to consider aeration in the evaluation of carbon sequestration strategies in cropping systems.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Copernicus Publications
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
On-farm study reveals positive relationship between gas transport capacity and organic carbon content in arable soil
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2019-03-19
ethz.journal.title
Soil
ethz.journal.volume
5
en_US
ethz.journal.issue
1
en_US
ethz.pages.start
91
en_US
ethz.pages.end
105
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Göttingen
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2019-03-29T04:07:20Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-03-29T08:38:40Z
ethz.rosetta.lastUpdated
2019-03-29T08:38:40Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.atitle=On-farm%20study%20reveals%20positive%20relationship%20between%20gas%20transport%20capacity%20and%20organic%20carbon%20content%20in%20arable%20soil&amp;rft.jtitle=Soil&amp;rft.date=2019&amp;rft.volume=5&amp;rft.issue=1&amp;rft.spage=91&amp;rft.epage=105&amp;rft.issn=2199-3971&amp;2199-398X&amp;rft.au=Colombi,%20Tino&amp;Walder,%20Florian&amp;B%C3%BCchi,%20Lucie&amp;Sommer,%20Marlies&amp;Liu,%20Kexing&amp;rft.genre=article&amp;
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