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A simple method for estimating the influence of eroding soil profiles on atmospheric CO2

dc.contributor.author Billings, SA
dc.contributor.author Buddemeier, RW
dc.contributor.author DeB Richter, D
dc.contributor.author Van Oost, K
dc.contributor.author Bohling, G
dc.date.accessioned 2011-06-21T17:21:58Z
dc.date.issued 2010-04-01
dc.identifier.issn 0886-6236
dc.identifier.uri https://hdl.handle.net/10161/3960
dc.description.abstract Although soil erosion has often been considered a net source of atmospheric carbon (C), several recent studies suggest that erosion serves as a net C sink. We have developed a spreadsheet-based model of soil organic C dynamics within an eroding profile (Soil Organic Carbon, Erosion, Replacement, and Oxidation (SOrCERO)) that calculates effects of soil organic carbon (SOC) erosion and altered SOC oxidation and production on the net exchange of C between the eroding profile and atmosphere. SOrCERO suggests that erosion can induce a net C sink or source, depending on management practices, the extent to which SOC oxidation and production characteristics change with erosion, and the fate of eroded SOC. Varying these parameters generated a wide range of C source and sink estimates (maximum net source and sink of 1.1/3.1 Pg C yr-1 respectively, applying results globally), highlighting research needs to constrain model estimates. We invite others to download SOrCERO (http://www.kbs.ku.edu/people/staff-www/billings/index.html) to test conceptual models and eroding soil profiles of interest in a consistent, comparable fashion. Copyright 2010 by the American Geophysical Union.
dc.language.iso en_US
dc.relation.ispartof Global Biogeochemical Cycles
dc.relation.isversionof 10.1029/2009GB003560
dc.title A simple method for estimating the influence of eroding soil profiles on atmospheric CO2
dc.title.alternative
dc.type Journal article
dc.description.version Version of Record
duke.date.pubdate 2010-4-2
duke.description.issue
duke.description.volume 24
dc.relation.journal Global Biogeochemical Cycles
pubs.begin-page GB2001
pubs.issue 2
pubs.organisational-group Duke
pubs.organisational-group Environmental Sciences and Policy
pubs.organisational-group Nicholas School of the Environment
pubs.publication-status Published
pubs.volume 24


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