FS123

Attributes in entity 1: Overstory tree and snag data		Details
1. DBCODE Definition: Database Code Domain: enum
2. ENTITY Definition: Entity number Units: number Domain: range (minimum = 1.  maximum = 1.)
3. PLOTID Definition: Measurement plot identification code comprised of TAC and Plot Domain: place
4. TAC Definition: Treatment Activity Code referencing the experimental treatment unit Domain: enum
5. PLOT Definition: The 0.1 ha circular measurement plot; assigned an alpha numeric code unique to the TAC in which it occurs Domain: enum
6. BLOCK Definition: Block is a statistical grouping of TACs; each block consists of four TACs, each representing one of the four experimental treatments Domain: enum
7. TREATMENT Definition: Experimental treatment applied to the TAC Domain: enum
8. TAG Definition: Numerical code assigned to an individual live tree (> 5 cm dbh) or snag (> 10 cm dbh) within a 0.1 ha plot. Assigned numbers are unique within a Plot. A numbered aluminum tag is attached to the stem at DBH. Trees without tags were assigned tags>10,000 Units: number Domain: range (minimum = 1.  maximum = 99000.)
9. AZ Definition: Azimuth from plot center to the tree or snag as measured with a compass accounting for magnetic declination (true azimuth) Units: degrees azimuth Domain: range (minimum = 1.  maximum = 360.)
10. SPECIES Definition: Recorded alpha numeric code for species scientific name Domain: taxa
11. YEAR Definition: Year the data was collected Units: year (yyyy) Domain: range (minimum = 1998.  maximum = 2005.)
12. DBH Definition: Diameter at breast height - diameter of the tree/snag bole measured at the dbh nail height (exisiting tag) or at 1.37 meters above ground on uphill side (when establishing a new tag). Units: centimeters Domain: range (minimum = 4.0  maximum = 100.0)
13. SURVIVAL Definition: Survival status: Live, Dead, or Snag Domain: enum
14. SNAGDCL Definition: Snag Decay Class - Also see related file Decay Class chart Domain: enum
15. SNHT Definition: Snag Height - total height of snag from ground (uphill side) to existing top. Units: meters Domain: range (minimum = 0.0  maximum = 40.0)
16. SNTOP Definition: Snag Top - classification of snag top condition (Intact or Broken) Domain: enum
17. CRNBHT Definition: Crown Base Height- vertical height from ground (uphill side) to the base of the live crown; live crown base is determined by the lowest occurrence of live limbs occupying one-third or more of the bole circumference (one-third live whorl) . Units: meters Domain: range (minimum = 0.0  maximum = 20.0)
18. CRNCL Definition: Crown Class - tree crown position within the canopy of neighboring trees (Dominant, Co-dominant, Intermediate, or Overtopped) Domain: enum
19. TREECOND Definition: Current status of tree or snag based on direct observation Domain: enum