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Accuracy and Precision of Tidal Wetland Soil Carbon Mapping in the Conterminous United States: Public Soil Carbon Data Release

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dc.contributor.author Holmquist, James R. en
dc.contributor.author Windham-Myers, Lisamarie en
dc.contributor.author Bliss, Norman en
dc.contributor.author Crooks, Stephen en
dc.contributor.author Morris, James T. en
dc.contributor.author Megonigal, J. Patrick en
dc.contributor.author Troxler, Tiffany en
dc.contributor.author Weller, Donald E. en
dc.contributor.author Callaway, John en
dc.contributor.author Drexler, Judith en
dc.contributor.author Ferner, Matthew C. en
dc.contributor.author Gonneea, Meagan E. en
dc.contributor.author Kroeger, Kevin D. en
dc.contributor.author Schile-Beers, Lisa en
dc.contributor.author Woo, Isa en
dc.contributor.author Buffington, Kevin en
dc.contributor.author Boyd, Brandon M. en
dc.contributor.author Breithaupt, Joshua en
dc.contributor.author Brown, Lauren N. en
dc.contributor.author Dix, Nicole en
dc.contributor.author Hice, Lyndie en
dc.contributor.author Horton, Benjamin P. en
dc.contributor.author MacDonald, Glen M. en
dc.contributor.author Moyer, Ryan P. en
dc.contributor.author Reay, William en
dc.contributor.author Shaw, Timothy en
dc.contributor.author Smith, Erik en
dc.contributor.author Smoak, Joseph M. en
dc.contributor.author Sommerfield, Christopher en
dc.contributor.author Thorne, Karen en
dc.contributor.author Velinsky, David en
dc.contributor.author Watson, Elizabeth en
dc.contributor.author Wilson Grimes, Kristen en
dc.contributor.author Woodrey, Mark en
dc.date.accessioned 2018-06-07T19:02:04Z
dc.date.available 2018-06-07T19:02:04Z
dc.date.issued 2018
dc.identifier.citation Holmquist, James R., Windham-Myers, Lisamarie, Bliss, Norman, Crooks, Stephen, Morris, James T., Megonigal, J. Patrick, Troxler, Tiffany, Weller, Donald E., Callaway, John, Drexler, Judith, Ferner, Matthew C., Gonneea, Meagan E., Kroeger, Kevin D., Schile-Beers, Lisa, Woo, Isa, Buffington, Kevin, Boyd, Brandon M., Breithaupt, Joshua, Brown, Lauren N., Dix, Nicole, Hice, Lyndie, Horton, Benjamin P., MacDonald, Glen M., Moyer, Ryan P., Reay, William et al. 2018. [Dataset] "<em>Accuracy and Precision of Tidal Wetland Soil Carbon Mapping in the Conterminous United States: Public Soil Carbon Data Release</em>." Distributed by Smithsonian Research Online. en
dc.description.abstract Tidal wetlands produce long-term soil organic carbon (C) stocks. Thus for carbon accounting purposes, we need accurate and precise information on the magnitude and spatial distribution of those stocks. We assembled and analyzed an unprecedented soil core dataset, and tested three strategies for mapping carbon stocks: applying the average value from the synthesis to mapped tidal wetlands, applying models fit using empirical data and applied using soil, vegetation and salinity maps, and relying on independently generated soil carbon maps. Soil carbon stocks were far lower on average and varied less spatially and with depth than stocks calculated from available soils maps. Further, variation in carbon density was not well-predicted based on climate, salinity, vegetation, or soil classes. Instead, the assembled dataset showed that carbon density across the conterminous united states (CONUS) was normally distributed, with a predictable range of observations. We identified the simplest strategy, applying mean carbon density (27.0 kgC m-3), as the best performing strategy, and conservatively estimated that the top meter of CONUS tidal wetland soil contains 0.72 petagrams C. This strategy could provide standardization in CONUS tidal carbon accounting until such a time as modeling and mapping advancements can quantitatively improve accuracy and precision. This data release includes the soil carbon data currently considered public by the data submittors. Additional detail can be found in the publication. Holmquist JR et al. (2018). Accuracy and Precision of Tidal Wetlands Soil Carbon Mapping in the Conterminous United States. Scientific Reports. DOI:10.1038/s41598-018-26948-7 en
dc.publisher Smithsonian Research Online en
dc.rights Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.subject.other salt marshes
dc.subject.other soil mapping
dc.title Accuracy and Precision of Tidal Wetland Soil Carbon Mapping in the Conterminous United States: Public Soil Carbon Data Release en
dc.type Dataset en
dc.identifier.srbnumber 146560
dc.description.SIUnit SERC en
dc.description.SIUnit Dataset en


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