Percent moisture, bulk density, percent loss on ignition and percent organic carbon were measured for peat collected from soils in the Imnavait Creek watershed.
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Soil cores were collected along a topographic sequence from the footslope to the ridge crest as well as the Imnavait Creek floodplain. Each core of peat, approximately 15 cm2 was cut to the depth of mineral soils and sampled at1 to 2 cm intervals.
Percent moisture was determined by drying to constant weight at 105 degrees Celcius and loss on ignition to be converted to percent organic carbon, determined by combustion at 550 degrees Celcius.Dried samples were ground to a fine powder and prepared for del 13C and radiocarbon measurements.
Reference Citations: Schell, D.M., Ziemann, P., Parrish, D., and Brown, E.
Foodweb and Nutrient Dynamics in Nearshore Alaskan
Beaufort Sea Waters. In: Envir. Assessment Alaskan
Cont. Shelf, Final Rept. Vol. 25., pp 327-499.
MMS/NOAA OCSEAP, Anchorage, AK.
% ORG C = 0.475 x % LOI + 0.14
del 13C = [(13C/12C sample / 13C/12C standard) - 1] x 1000
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Version 3: Updated to newer metadata form (with sites sheet). Fixed discrepency with variable names. Units updated to current standards. CH March 2013.
Version 2: Checked keywords against the LTER network preferred list and replaced non-preferred terms. Jim L 27Jan14
Version 3: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015
Version 4: Changed Distrubution URL since the LTER network DAS system is being discontinued. JimL 9Apr2015