Tidal Wetland Soil Carbon Stocks for the Conterminous United States, 2006-2010

This dataset provides modeled estimates of soil carbon stocks for tidal wetland areas of the Conterminous United States (CONUS) for the period 2006-2010. Wetland areas were determined using both 2006-2010 Coastal Change Analysis Program (C-CAP) raster maps and the National Wetlands Inventory (NWI) vector data. All 30 x 30-meter C-CAP pixels were extracted that are coded as estuarine emergent, scrub/shrub, or forested in either 2006 or 2010. A soil database for model fitting and validation was compiled from 49 different studies with spatially explicit empirical depth profile data and associated metadata, totaling 1,959 soil cores from 18 of the 22 coastal states. Reported estimates of carbon stocks were derived with modeling approaches that included (1) applying a single average carbon stock value from the compiled soil core data, (2) applying models fit using the empirical data and applied spatially using soil, vegetation and salinity maps, (3) relying on independently generated soil carbon maps from The United States Department of Agriculture (USDA)'s Soil Survey Geographic Database (SSURGO), and the NWI that intersected with mapped tidal wetlands, and (4) using a version of SSURGO bias-corrected for bulk density. Comparisons of uncertainty, precision, and accuracy among these four approaches are also provided.

Data and Resources

Additional Info

Field Value
Maintainer undefined
Last Updated July 30, 2019, 21:16 (CDT)
Created July 30, 2019, 21:16 (CDT)
Identifier C1593578656-ORNL_DAAC
Issued 2019-02-20
Modified 2019-04-15
accessLevel public
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
citation Archived by National Aeronautics and Space Administration, U.S. Government, ORNL_DAAC. https://doi.org/10.3334/ORNLDAAC/1612. Holmquist, J.R., L. Windham-Myers, N. Bliss, S. Crooks, J.T. Morris, P.J. Megonigal, T. Troxler, D. Weller, J. Callaway, J. Drexler, M.C. Ferner, M.E. Gonneea, K. Kroeger, L. Schile-beers, I. Woo, K. Buffington, B.M. Boyd, J. Breithaupt, L.N. Brown, N. Dix, L. Hice, B.P. Horton, G.M. Macdonald, R.P. Moyer, W. Reay, T. Shaw, E. Smith, J.M. Smoak, C. Sommerfield, K. Thorne, D. Velinsky, E. Watson, K. Grimes, and M. Woodrey. 2019. Tidal Wetland Soil Carbon Stocks for the Conterminous United States, 2006-2010. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1612.
graphic-preview-description Results of three alternative carbon stock estimation approaches for the Louisiana Delta region: Left, using SSURGO data as independent soils data; Middle, using the SSURGO data after bulk density data were bias-corrected; Right, using the empirical average from the compiled soils dataset of 27 kg C /m3 (Holmquist et al., 2018).
graphic-preview-file https://daac.ornl.gov/CMS/guides/Tidal_Wetland_Soil_Carbon_Fig1.png
landingPage https://doi.org/10.3334/ORNLDAAC/1612
metadata_type geospatial
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 5db777dfefa429b84b60251ab671dc3261857484
source_schema_version 1.1
spatial -127.97 22.73 -65.27 48.24
temporal 2006-01-01T00:00:00Z/2010-12-31T23:59:59Z