Short‐Term Changes in Physical and Chemical Properties of Soil Charcoal Support Enhanced Landscape Mobility

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dc.citation.firstpage3098
dc.citation.issueNumber11
dc.citation.journalTitleJournal of Geophysical Research: Biogeosciences
dc.citation.lastpage3107
dc.citation.volumeNumber122
dc.contributor.authorPyle, Lacey A.
dc.contributor.authorMagee, Kate L.
dc.contributor.authorGallagher, Morgan E.
dc.contributor.authorHockaday, William C.
dc.contributor.authorMasiello, Caroline A.
dc.date.accessioned2018-06-29T16:54:54Z
dc.date.available2018-06-29T16:54:54Z
dc.date.issued2017
dc.description.abstractCharcoal is a major component of the stable soil organic carbon reservoir, and the physical and chemical properties of charcoal can sometimes significantly alter bulk soil properties (e.g., by increasing soil water holding capacity). However, our understanding of the residence time of soil charcoal remains uncertain, with old measured soil charcoal ages in apparent conflict with relatively short modeled and measured residence times. These discrepancies may exist because the fate of charcoal on the landscape is a function not just of its resistance to biological decomposition but also its physical mobility. Mobility may be important in controlling charcoal landscape residence time and may artificially inflate estimates of its degradability, but few studies have examined charcoal vulnerability to physical redistribution. Charcoal landscape redistribution is likely higher than other organic carbon fractions owing to charcoal's low bulk density, typically less than 1.0ﾠg/cm3. Here we examine both the physical and chemical properties of soil and charcoal over a period of two years following a 2011 wildfire in Texas. We find little change in properties with time; however, we find evidence of enhanced mobility of charcoal relative to other forms of soil organic matter. These data add to a growing body of evidence that charcoal is preferentially eroded, offering another explanation for variations observed in its environmental residence times.
dc.identifier.citationPyle, Lacey A., Magee, Kate L., Gallagher, Morgan E., et al.. "Short‐Term Changes in Physical and Chemical Properties of Soil Charcoal Support Enhanced Landscape Mobility." <i>Journal of Geophysical Research: Biogeosciences,</i> 122, no. 11 (2017) Wiley: 3098-3107. https://doi.org/10.1002/2017JG003938.
dc.identifier.doihttps://doi.org/10.1002/2017JG003938
dc.identifier.urihttps://hdl.handle.net/1911/102324
dc.language.isoeng
dc.publisherWiley
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleShort‐Term Changes in Physical and Chemical Properties of Soil Charcoal Support Enhanced Landscape Mobility
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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