Uncertainties in peat volume and soil carbon estimated using ground penetrating radar and probing

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Soil Science Society of America Journal

DOI:https://doi.org/10.2136/sssaj2012.0040· OSTI ID:1054991

Parsekian, Andrew D. ^[1]; Slater, Lee ^[1]; Ntarlagiannis, Dimitrios ^[1]; Nolan, James ^[1]; Sebestyen, Stephen D ^[2]; Kolka, Randall K ^[2]; Hanson, Paul J ^[3]

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1. Rutgers University
2. USDA Forest Service, Grand Rapids, MN
3. ORNL

We evaluate the uncertainty in calculations of peat basin volume using high-resolution data . to resolve the three-dimensional structure of a peat basin using both direct (push probes) and indirect geophysical (ground penetrating radar) measurements. We compared volumetric estimates from both approaches with values from literature. We identified subsurface features that can introduce uncertainties into direct peat thickness measurements including the presence of woody peat and soft clay or gyttja. We demonstrate that a simple geophysical technique that is easily scalable to larger peatlands can be used to rapidly and cost effectively obtain more accurate and less uncertain estimates of peat basin volumes critical to improving understanding of the total terrestrial carbon pool in peatlands.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1054991
• Journal Information: Soil Science Society of America Journal, Vol. 76, Issue 5; ISSN 0361--5995
• Country of Publication: United States
• Language: English