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

Description

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.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1612
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1612
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/cms/Tidal_Wetland_Soil_Carbon/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/CMS/guides/Tidal_Wetland_Soil_Carbon.html
34 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). https://daac.ornl.gov/CMS/guides/Tidal_Wetland_Soil_Carbon_Fig1.png
33 Tidal Wetland Soil Carbon Maps in the Conterminous United States, 2010-2016: Tidal_Wetland_Soil_Carbon.pdf https://data.ornldaac.earthdata.nasa.gov/public/cms/Tidal_Wetland_Soil_Carbon/comp/Tidal_Wetland_Soil_Carbon.pdf

Tags

  • ecosystems
  • soils
  • land-surface
  • biosphere
  • ecological-dynamics
  • earth-science

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