TN021

Attributes in entity 1: Density Fractionation; carbon and nitrogren content by fraction		Details
1. DBCODE Definition: Database Code (assigned by FSDB data manager) Domain: enum
2. ENTITY Definition: Entity number (data table number) Units: number Domain: range (minimum = 1.  maximum = 1.)
3. YEAR Definition: Year of sampling Units: year (yyyy) Domain: range (minimum = 1999.  maximum = 1999.)
4. FRACTION Definition: Density fraction of carbon in g/cm3 Domain: enum
5. SAMPLE_NO Definition: Sample Code Units: number Domain: range (minimum = 1.  maximum = 18.)
6. PLOT Definition: Plot Code Domain: place
7. TREAT Definition: Treatment Domain: enum
8. SOIL_MASS_WET Definition: Mass of soil sample prior to drying Units: grams Domain: range (minimum = 50.000  maximum = 50.090)
9. SOIL_MASS_DRY Definition: Dry mass of soil sample at 50 degrees celcius Units: grams Domain: range (minimum = 0.000  maximum = 46.460)
10. PCT_C_ALL Definition: Average %C in all soil fractions of the soil sample Units: percent Domain: range (minimum = 0.0000  maximum = 100.0000)
11. PCT_N_ALL Definition: Average %N in all soil fractions of the soil sample Units: percent Domain: range (minimum = 0.0000  maximum = 100.0000)
12. SOIL_MASS_FRACTION Definition: Dry mass of soil subsample fraction at 50 degrees celcius Units: grams Domain: range (minimum = 0.800  maximum = 28.900)
13. PCT_C_FRACTION Definition: Percent C in the dried subsample fraction Units: percent Domain: range (minimum = 0.00  maximum = 100.00)
14. PCT_N_FRACTION Definition: Percent N in the dried subsample fraction Units: percent Domain: range (minimum = 0.00  maximum = 100.00)
15. MGC_GSOIL_FRACTION Definition: millgrams of C per gram of subsample fraction Units: milligrams Domain: range (minimum = 0.010  maximum = 53.500)
16. MGC_FRACTION_GSOIL_ALL Definition: milligrams of C in fraction per gram of bulk soil Units: milligrams per gram Domain: range (minimum = 0.240  maximum = 1160.350)
17. MGN_GSOIL_FRACTION Definition: milligrams of N per gram of subsample fraction Units: milligrams Domain: range (minimum = 0.080  maximum = 42.820)
18. MGN_FRACTION_GSOIL_ALL Definition: milligrams of N in fraction per gram of bulk soil Units: milligrams per gram Domain: range (minimum = 0.020  maximum = 934.440)