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TD021

Attributes in entity 3: Wet chemistry data

     Details
1. DBCODE
Definition: FSBD study code
Domain: enum
2. ENTITY
Definition: FSDB entity number
Units: number
Domain: range (minimum = 3.  maximum = 3.)
3. SITE
Definition: Site where samples were incubated in field
Domain: place
4. TIME
Definition: Proposed time interval to collect samples in the field; interval is typically 1 year, but at the Mexico sites (tropical) it is half a year; refer to TIMEOUT for field incubation time
Units: number of years
Domain: range (minimum = 0.  maximum = 0.)
5. SPECIES
Definition: Species code of sample
Domain: taxa
6. SIZE
Definition: Diameter class of branch sample
Domain: enum
7. SOURCE
Definition: Part of tree from which sample was cut
Domain: enum
8. SAMPLE_NO
Definition: Indicates if sample is repeated 1 is first, 2 is duplicate
Units: number
Domain: range (minimum = 1.  maximum = 8.)
9. DATE
Definition: Date samples were run
Units: date as date type
Domain: range (minimum = Jan 10 1998  maximum = Jan 24 1998)
11. NIR_NUM
Definition: Unique number for individual or pooled samples
Units: number
Domain: range (minimum = 90046.  maximum = 94457.)
13. ASH
Definition: Percent of sample that was composed of ash
Units: percent
Domain: range (minimum = 0.43  maximum = 2.07)
14. NPE
Definition: Non-polar extractives
Units: percent
Domain: range (minimum = 0.45  maximum = 9.88)
15. WS
Definition: Water soluble extractives
Units: percent
Domain: range (minimum = 4.06  maximum = 13.29)
16. ACIDSOL
Definition: Acid soluble carbohydrates
Units: percent
Domain: range (minimum = 34.71  maximum = 65.38)
17. LIGNIN
Definition: Lignin as measured by Ryan et. al. method
Units: percent
Domain: range (minimum = 28.28  maximum = 57.28)
18. TANNIN
Definition: Tannin measured against tannic acid standard using denis-folin reagent
Units: percent
Domain: range (minimum = 0.12  maximum = 4.32)
19. WSCARB
Definition: Percent water soluble carbohydrates as measured by Ryan et. al. method
Units: percent
Domain: range (minimum = 0.72  maximum = 3.62)
20. ASCARB
Definition: Percent acid soluble carbohydrates as measured by Ryan et. al. method
Units: percent
Domain: range (minimum = 4.55  maximum = 37.01)
21. NITROGEN
Definition: Total nitrogen as measured by kjeldahl method
Units: percent
Domain: range (minimum = 0.03  maximum = 0.23)
22. LAB
Definition: Code to indicate lab which performed the analysis
Domain: enum