TD023

Attributes in entity 13: Nitrogen concentration data		Details
1. STCODE Definition: Database code Domain: enum
2. FORMAT Definition: Entity number Units: number Domain: range (minimum = 13.  maximum = 13.)
3. SITE Definition: Site code Domain: place
4. REP Definition: Replicate code Domain: enum
5. DURATION Definition: The length of time (number of years) the litter will remain on site before it is harvested. Units: number of years Domain: range (minimum = 0.  maximum = 20.)
6. SPECIES Definition: Litter species code Domain: taxa
7. TYPE Definition: The substrate of the litter : leaves, roots, wood Domain: enum
8. NIR_NUM Definition: Unique sample number Units: number Domain: range (minimum = 1.  maximum = 48704.)
9. I_NITRO Definition: Percent initial nitrogen content of individual sample Units: percent Domain: range (minimum = 0.000  maximum = 2.450)
10. AF_I_NITRO Definition: Percent initial ashfree nitrogen content of individual sample Units: percent Domain: range (minimum = 0.000  maximum = 3.938)
11. F_NITRO Definition: Percent final nitrogen content of individual sample after incubation Units: percent Domain: range (minimum = 0.000  maximum = 5.440)
12. AF_F_NITRO Definition: Percent final ashfree nitrogen content of individual sample after incubation Units: percent Domain: range (minimum = 0.000  maximum = 100.000)
13. IAFW Definition: Initial ash free weight (iodw*iash) Units: grams Domain: range (minimum = 0.746  maximum = 11.363)
14. FAFW Definition: Final ash free weight (fow*fash) Units: grams Domain: range (minimum = 0.025  maximum = 11.404)
15. PAFRM Definition: Percent ash free remaining mass (fafw/iafw) Units: percent Domain: range (minimum = 0.455  maximum = 497.721)
16. KAFW Definition: Decay rate ash free weight basis (fafw/iafw) Units: number Domain: range (minimum = -7.206  maximum = 1.121)
17. I_N_CONT Definition: Initial nitrogen content ((AF_I_NITRO/100)*IAFW) Units: percent Domain: range (minimum = 0.000  maximum = 0.238)
18. F_N_CONT Definition: Final nitrogen content ((AF_F_NITRO/100)*FAFW) Units: percent Domain: range (minimum = 0.000  maximum = 2.898)
19. N_CONC Definition: Nitrogen concentration/proportion remaining after incubation (F_N_CONT / I_N_CONT) Units: number Domain: range (minimum = 0.000  maximum = 69.719)
20. TIMEOUT Definition: Time in years that litter sample incubated in field Units: number of years Domain: range (minimum = 0.23  maximum = 10.22)
21. COMMENT Definition: Coded comments Domain: enum