Analysis data from soil heating experiment
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资源简介:
The data contains soil properties following laboratory heating treatment of five soils to six temperatures (150, 250, 350, 450, 550 and 650 Celsius).
Description of variables:
Soil Series:
Soil
series
Geographic location (decimal degrees)
Vista
36.97141 N,
119.56800 W
Musick
37.06073 N,
119.37348 W
Shaver
37.05405 N,
119.14498 W
Sirretta
37.16189 N,
119.20198 W
Chiquito
37.29214 N, 119.09464 W
Replicate: Sample replicate identification number.
Heating Temperature: Treatment temperature in Celsius. Untreated/control samples are assigned the value 25 (~room temperature).
Masslost:
Mass percent lost.
Aggregate stability: Water stable aggregate percent of soils measured by wet-sieving.
pH-water: Soil pH measured in 1:2 suspension-solution ratio mixture in a deionized water.
pH-CaCl2: Soil pH measured in 1:2 suspension-solution ratio mixture in 0.01M CaCl2 solution.
Specific Surface Area: Mass loss adjusted specific surface area in m2/g measured by an automated N2-BET analyzer.
CEC: Mass loss adjusted cation exchange capacity in cmolc/kg measured by barium exchange method. Values below the instrument minimum detection limit (2cmolc/kg) have been assigned a value of 1.
Macroaggregate: Mass percent of 2-0.25 mm size aggregates determined by dry-sieving.
Microaggregates: Mass percent of 0.25-0.053 mm size aggregates determined by dry-sieving.
Silt-clay-size: Mass percent of <0.053 mm size aggregates determined by dry-sieving.
del-15-N: Per mill (‰) δ15N isotope concentration.
del-13-C:Per mill (‰) δ13C isotope concentration.
N: Mass percent nitrogen concentration.
C: Mass percent carbon concentration
C:N ratio: Carbon to nitrogen elemental mass ratio.
Size Fraction: Aggregate size class determined by dry-sieving.
Data description for the FTIR data:
The fist column is the mid infrared wavenumber from Fourier transform infrared spectroscopy (FTIR) in cm-1.
The rest of the columns are the relative infrared absorption spectrum values for each sample-treatment combination.
创建时间:
2017-02-03



