TD022

Attributes in entity 3: Tissue Density		Details
1. DBCODE Definition: FSDB Database Code Domain: enum
2. ENTITY Definition: Entity number Units: number Domain: range (minimum = 3.  maximum = 3.)
3. STUDYID Definition: Study Id, matches those in TD12 and TV010 whenever possible Domain: enum
4. STAND Definition: Code for stand Domain: place
6. PLOT Definition: Arbitrary site number associated with cwd piece. Domain: freetext
7. YEAR Definition: Year the sample collection took place Units: year (yyyy) Domain: range (minimum = 1980.  maximum = 2001.)
10. NUMBER Definition: Identifying code/number of CWD piece Domain: freetext
11. SECTION Definition: Cross-section number or letter of sample; often more than one is taken to give replication Domain: freetext
12. TISSUE Definition: Tissue type of the sample Domain: enum
13. THICKNESS Definition: Thickness of the sample, may not be recorded if water displacement used to measure the volume. Units: millimeters Domain: range (minimum = 11.0  maximum = 281.7)
14. AREA Definition: Area of the sample, may not be recorded if water displacement used to measure the volume. Units: square centimeters Domain: range (minimum = 0.3  maximum = 10496.0)
15. VOLUME Definition: Volume of the sample, if based on water displacement then thickness and area will be missing. samples soaked 24-48 hrs before displacement measurement Units: cubic centimeters Domain: range (minimum = 0.7  maximum = 98357.8)
16. DRYWT Definition: Usually dry weight of subsample (a wedge), usually after 4-7 days at 55 C. Units: grams Domain: range (minimum = 0.30  maximum = 4057.00)
17. WETWT Definition: Usually wet weight of subsample (a wedge), may be missing if water displacement used to measure the volume Units: grams Domain: range (minimum = 0.48  maximum = 6453.50)
18. DENSITY Definition: Density of sample; calculated from dry weight divided by fresh volume. usually total dry weight divided by the volume of a cross-section Units: grams per cubic centimeter Domain: range (minimum = 0.000  maximum = 1.440)
19. MOISTURE Definition: Moisture content of subsample; calculated as water weight lost during drying divided by the dry weight. Units: percent Domain: range (minimum = 0.2  maximum = 3641.0)
20. TOTWETWT Definition: Total wet weight of the sample (entire cross-section) measured in the field Units: grams Domain: range (minimum = 0.50  maximum = 42189.00)
21. TOTDRYWT Definition: Total dry weight of the sample (entire cross-section) calc-ted from total wet weight and ratio between subsample dry and wet wghts Units: grams Domain: range (minimum = 0.000  maximum = 12532.615)
22. SAMPLEDATE Definition: Date the sample collection took place Units: date as date type Domain: range (minimum = Sep 1 1982  maximum = Jun 11 2001)