DF028

Attributes in entity 1: Raw stand-structure and age-structure data		Details
1. DBCODE Definition: FSDB Database Code DF028 Domain: enum
2. ENTITY Definition: Entity number Units: number Domain: range (minimum = 1.  maximum = 1.)
3. WATERSHED Definition: Research Watershed Domain: place
4. TRANSECT Definition: Transect number: values range from 1 to 53 in the Fall Creek watershed, 1-60 in the Blue River watershed, 1-3 at Browder Creek, 1-3 at Gate Creek, and 1-6 at Soapgrass Mountain Units: number Domain: range (minimum = 1.  maximum = 60.)
5. PLOT Definition: Plot number along each transect; values range from 1 to 5 in each transect (rarely plot #6 was used if a large number of additional trees was cored to replace trees with heartrot in the plots) Units: number Domain: range (minimum = 1.  maximum = 6.)
6. PLOT_ID Definition: Six digit code unique to each plot; the first two digits indicate the watershed, the second two digits indicate the transect number, and the last two digits indicate the plot number Domain: place
7. SPECIES Definition: Four-letter code used to identify each tree species Domain: taxa
8. DBH Definition: Diameter at Breast Height, recorded to the nearest 0.1 cm Units: centimeters Domain: range (minimum = 7.6  maximum = 227.3)
9. STATUS Definition: Live or dead Domain: enum
10. CORE_NUM Definition: Unique number for tree cores collected in each plot; values start at 1 in each plot Units: number Domain: range (minimum = 1.  maximum = 99.)
11. CORE_HEIGHT Definition: Core height above the mineral soil surface Units: centimeters Domain: range (minimum = 0.  maximum = 192.)
12. INNER_RING Definition: Calendar year of the innermost ring present within the core Units: number Domain: range (minimum = 1185.  maximum = 1986.)
13. CROSS_DATED Definition: Specifies whether or not the core was cross-dated Domain: enum
14. FULL_ARC Definition: Specifies whether or not the innermost ring in the tree core forms a complete arc, establishment dates only estimated if the innermost ring forms a full arc Domain: enum
15. PITH_YR Definition: Estimated pith year calculated using the geometric method of Duncan (1989); only calculated if Full_Arc_Present = y Units: number Domain: range (minimum = 1181.  maximum = 1980.)
16. ESTAB_YR Definition: The estimated pith year minus the estimated number of years to reach coring height calculated using the equation of Morrison and Swanson (1990) Units: number Domain: range (minimum = 1175.  maximum = 1977.)
17. PITH_ERROR Definition: Difference between the year of the innermost ring and the estimated pith year; indicates how far off center the core is Units: number Domain: range (minimum = 0.  maximum = 62.)
18. CORE_HT_ERROR Definition: Estimated number of years to reach coring height (Pith_Year - Establishment_Year) Units: number Domain: range (minimum = 0.  maximum = 16.)
19. OUT_OF_PLOT Definition: Indicates trees located out of the sample plot that were cored to substitute for a tree in the plot where the pith could not be reached due to heartrot or the tree was too big Domain: enum
20. CATFACE Definition: Specifies whether or not the tree has a catface (an open wound extending to the ground) Domain: enum
21. HEARTROT Definition: Specifies whether or not the tree has heartrot (cores from trees with heartrot usually were replaced by coring another tree of the same species and similar size outside of the plot -- see information in the notes Domain: enum
22. CHARCOAL Definition: Specifies whether or not the tree has charcoal on its bark Domain: enum
23. NOTES Definition: Additional information about the tree (e.g., for dead trees it specifies whehter it is a snag or a stump, for tree located outside of the plot, it specifies which core it replaces) Domain: freetext
24. TREE_ID Definition: Unique tree ID for each tree within a plot. Domain: freetext