TD023

Attributes in entity 3: Wet Chemical Data of Litter Subsamples		Details
1. STCODE Definition: Database code Domain: enum
2. FORMAT Definition: Entity number Units: number Domain: range (minimum = 3.  maximum = 3.)
3. SPECIES Definition: Litter species code Domain: taxa
4. BATCH Definition: Batch number that represents whether a sample run was repeated or not. Domain: enum
5. TYPE1 Definition: The substrate of the litter: leaves, roots, wood Domain: enum
6. NIR_NUM Definition: Unique sample number Units: number Domain: range (minimum = 1.  maximum = 99999.)
7. DUP Definition: Indicates if a sample measurement was repeated to check measurements. Domain: enum
8. SAMPLEDATE Definition: Date of sampling Units: date as datetime type Domain: range (minimum = Dec 18 1990 12:00AM  maximum = Sep 15 2004 12:00AM)
12. 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.)
13. REP Definition: Replicate code Domain: enum
14. SITE Definition: Site code Domain: place
15. ASH Definition: Percent of sample that was composed of ash Units: percent Domain: range (minimum = 0.10  maximum = 95.00)
16. NPE Definition: Non-polar extractives Units: percent Domain: range (minimum = 0.01  maximum = 39.53)
17. WS Definition: Water soluble extractives Units: percent Domain: range (minimum = 1.00  maximum = 61.40)
18. ACIDSOL Definition: Acid soluble extractives Units: percent Domain: range (minimum = 10.00  maximum = 95.73)
19. LIGNIN Definition: Lignin as measured by Ryan et al method. Units: percent Domain: range (minimum = -11.00  maximum = 96.00)
20. TANNIN Definition: Tannin measured against tannic acid standard using denis-folin reagent Units: percent Domain: range (minimum = 0.00  maximum = 21.00)
21. WSCARB Definition: Percent water soluble carbohydrates as measured by ryan et al. method. Units: percent Domain: range (minimum = 0.10  maximum = 50.00)
22. ASCARB Definition: Percent acid soluble carbohydrates as measured by ryan et al. method. Units: percent Domain: range (minimum = 0.10  maximum = 90.00)
23. CARBON Definition: Carbon content Units: percent Domain: range (minimum = 3.50  maximum = 55.70)
24. NITROGEN Definition: Total nitrogen as measured by kjeldahl method. Units: percent Domain: range (minimum = 0.05  maximum = 4.00)
25. LAB Definition: Laboratory name where analysis was performed Domain: enum