Integrating plant litter quality, soil organic matter stabilization, and the carbon saturation concept

dc.contributor.author Castellano, Michael
dc.contributor.author Castellano, Michael
dc.contributor.author Mueller, Kevin
dc.contributor.author Olk, Daniel
dc.contributor.author Sawyer, John
dc.contributor.author Sawyer, John
dc.contributor.author Six, Johan
dc.contributor.department Agronomy
dc.date 2018-08-10T14:30:34.000
dc.date.accessioned 2020-06-29T23:02:33Z
dc.date.available 2020-06-29T23:02:33Z
dc.date.issued 2015-09-01
dc.description.abstract <p>Labile, ‘high-quality’, plant litters are hypothesized to promote soil organic matter (SOM) stabilization in mineral soil fractions that are physicochemically protected from rapid mineralization. However, the effect of litter quality on SOM stabilization is inconsistent. High-quality litters, characterized by high N concentrations, low C/N ratios, and low phenol/lignin concentrations, are not consistently stabilized in SOM with greater efficiency than ‘low-quality’ litters characterized by low N concentrations, high C/N ratios, and high phenol/lignin concentrations. Here, we attempt to resolve these inconsistent results by developing a new conceptual model that links litter quality to the soil C saturation concept. Our model builds on the Microbial Efficiency-Matrix Stabilization framework (Cotrufo <em>et al</em>., 2013) by suggesting the effect of litter quality on SOM stabilization is modulated by the extent of soil C saturation such that high-quality litters are not always stabilized in SOM with greater efficiency than low-quality litters.</p>
dc.description.comments <p>This article is published as Castellano, Michael J., Kevin E. Mueller, Daniel C. Olk, John E. Sawyer, and Johan Six. "Integrating plant litter quality, soil organic matter stabilization, and the carbon saturation concept." <em>Global change biology</em> 21, no. 9 (2015): 3200-3209. doi: <a href="https://doi.org/10.1111/gcb.12982">10.1111/gcb.12982</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/100/
dc.identifier.articleid 1099
dc.identifier.contextkey 8864260
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/100
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4424
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/100/2015_Castellano_IntegratingPlant.pdf|||Fri Jan 14 18:11:38 UTC 2022
dc.source.uri 10.1111/gcb.12982
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.title Integrating plant litter quality, soil organic matter stabilization, and the carbon saturation concept
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 1f34589d-68d7-4578-adfb-28caa0e9d604
relation.isAuthorOfPublication 17ce8a78-56b3-47be-abcb-b22968be40f2
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
File
Original bundle
Now showing 1 - 1 of 1
Name:
2015_Castellano_IntegratingPlant.pdf
Size:
310.41 KB
Format:
Adobe Portable Document Format
Description:
Collections