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TD031

Attributes in entity 1: Sample weights, mass loss, carbon and nitrogen dynamics

     Details
1. DBCODE
Definition: FSDB database code
Domain: enum
2. ENTITY
Definition: Entity number
Units: number
Domain: range (minimum = 1.  maximum = 1.)
3. SITE
Definition: Site where samples were incubated
Domain: enum
4. REP
Definition: Replicate number
Units: number
Domain: range (minimum = 1.  maximum = 4.)
5. TIME
Definition: The time the litter will be harvested (sequential collection number)
Units: number
Domain: range (minimum = 1.  maximum = 6.)
6. TIMEOUT
Definition: The amout of time that the root sample incubated in the field
Units: number of years
Domain: range (minimum = 0.25  maximum = 2.00)
7. SPECIES
Definition: Root species code
Domain: taxa
8. TYPE
Definition: Diameter class of the root sample, position for the GOBA (dowel) sample
Domain: enum
9. SAMP_NUM
Definition: Unique sample number, except for GOBA dowels that are differentiated by type
Units: number
Domain: range (minimum = 1.  maximum = 10804.)
10. IODW
Definition: Initial oven dry weight before field incubation
Units: grams
Domain: range (minimum = 0.000  maximum = 3549.500)
11. IASH
Definition: Percent of initial sample composed of ash
Units: percent
Domain: range (minimum = 0.00  maximum = 12.32)
12. IAFODW
Definition: Initial ash-free oven dry weight
Units: grams
Domain: range (minimum = 0.00  maximum = 3525.72)
13. INI_C
Definition: Percent of initial sample composed of carbon ((100-iash)/1.9)
Units: percent
Domain: range (minimum = 44.74  maximum = 54.40)
14. INI_N
Definition: Percent of initial sample composed of nitrogen
Units: percent
Domain: range (minimum = 0.13  maximum = 2.19)
15. INI_C_CONT
Definition: Carbon content of initial sample ashfree basis
Units: grams
Domain: range (minimum = 0.000  maximum = 1805.520)
16. INI_N_CONT
Definition: Nitrogen content of initial sample ashfree basis
Units: grams
Domain: range (minimum = 0.000  maximum = 7.117)
17. FWW
Definition: Final wet weight of sample after field incubation
Units: grams
Domain: range (minimum = 6.79  maximum = 9091.20)
18. FOW
Definition: Final oven dry weight of sample after field incubation
Units: grams
Domain: range (minimum = 2.10  maximum = 3516.00)
19. FASH
Definition: Percent of sample composed of ash after field incubation
Units: percent
Domain: range (minimum = 0.01  maximum = 26.30)
20. FAFOW
Definition: Final ash-free oven dry weight after field incubation
Units: grams
Domain: range (minimum = 1.617  maximum = 3463.260)
21. MOISTURE
Definition: Percent moisture of final sample after field incubation, can be over 100 moisture=100*((fww-fow)/fow) ie. water weight/dry weight * 100
Units: percent
Domain: range (minimum = 2.5  maximum = 2439.0)
22. MASSLOSS
Definition: Percent of the mass of the sample that was lost during incubation
Units: percent
Domain: range (minimum = -9.06  maximum = 77.22)
23. CARBON
Definition: Percent of final sample composed of carbon after field incubation ((100-fash)/1.9)
Units: percent
Domain: range (minimum = 38.79  maximum = 52.63)
24. CARBON_REM
Definition: Percent of initial carbon content (mass) remaining after field incubation ie. final carbon content/initial carbon content
Units: percent
Domain: range (minimum = 17.46  maximum = 106.03)
25. AF_N
Definition: Percent of sample composed of nitrogen after field incubation
Units: percent
Domain: range (minimum = 0.03  maximum = 2.60)
26. NITRO_REM
Definition: Percent of initial nitrogen content (mass) remaining after field incubation ie. final nitrogen content/initial nitrogen content
Units: percent
Domain: range (minimum = 10.42  maximum = 219.23)
27. C_N_RATIO
Definition: Ratio of carbon to nitrogen (c:n)
Units: number
Domain: range (minimum = 18.18  maximum = 1728.70)