TP122

Attributes in entity 1: LTEP 20-year tree plot inventory data set		Details
1. DBCODE Definition: Database Code TP122 Domain: enum
2. ENTITY Definition: Entity number (data table number) Units: number Domain: range (minimum = 1.  maximum = 1.)
3. YEAR Definition: Year measurements were taken Units: year (yyyy) Domain: range (minimum = 1992.  maximum = 2010.)
4. EXPBLOCK Definition: Experimental block code system used internally on LTEP data sheets and in database entry Domain: enum
5. EXPUNIT Definition: Experimental unit: Block, Vegetation treatment, Organic matter treatment Domain: enum
6. TREEPLOTCODE Definition: Tree plot identifier with Experimental block (EXPBLOCK), Vegetation treatment (VEGTX), Organic matter treatment (OMATTERTX), and Grid point coordinates (GRID). Same as TREEPLOTTAG except without hyphens, spaces, or commas. Domain: place
7. TREEID Definition: Unique 14-character code specific to each tree: Experimental unit (4 characters), X-coordinate (3 chars), Y-coordinate (3 chars), Tree tag number (4 chars). Note: tree tags preceeded by an 'N' do not directly correspond to trees subsequently measured. Domain: freetext
8. SPECIES Definition: Plant species code from USDA Plants Database (changed to a common code, when codes have changed) Domain: taxa
9. ORIGIN Definition: Tree origin Domain: enum
10. LIVEORDEAD Definition: Live or Dead (Note alternate condition present in immediate post-wildfire trees) Domain: enum
11. CROWNCLASS Definition: Crown class Domain: enum
12. SNAGSTAGE Definition: Decay stage of standing snag Domain: enum
13. TREESTATUS Definition: Status of tree since last survey- whether preexisting (live or dead, standing or down, residual) or not (ingrowth) and whether mostly died after fire, then resprouted. Domain: enum
14. DBH Definition: Diameter at breast height (1.37 m) above ground, taken from the uphill side of the tree Units: centimeters Domain: range (minimum = 1.1  maximum = 136.6)
15. DBH_FLAG Definition: Non-numerical entries (na, nm) for diameter at breast height (DBH) Domain: enum
16. TREEHT Definition: Tree height; measured from the base of the tree to the uppermost distinguishable top of the tree, even if the top was dead (not green) Units: meters Domain: range (minimum = 0.2  maximum = 47.1)
17. TREEHT_FLAG Definition: Non-numerical entries (na, nm) for tree height (TRHT) Domain: enum
18. BLCHT Definition: Base to live crown height; measured from the base of the tree to the lowest living foliage. Small green branches below the main crown were visually added to the main crown volume and the height then measured at the adjusted crown level. Units: meters Domain: range (minimum = 0.0  maximum = 34.6)
19. BLCHT_FLAG Definition: Non-numerical entries (na, nm) for base to live crown height (BLCHT) Domain: enum
20. AGEBH Definition: Age of tree (number of rings) at breast height. Lower than actual tree age. Units: number Domain: range (minimum = 24.  maximum = 127.)
21. AGEBH_FLAG Definition: Non-numerical entries (N, nm, Y) for age at breast height (AGEBH) Domain: enum
22. DAMAGE1 Definition: Primary damage-causing agent; codes from USFS Region 6 Stand Examination Procedures (1991). First two numbers are the damage agent; third number indicates the severity of damage. Domain: enum
24. DAMAGE2 Definition: Secondary damage-causing agent; codes from USFS Region 6 Stand Examination Procedures (1991). First two numbers are the damage agent; third number indicates the severity of damage. Domain: enum
26. BAPERTREE Definition: Calculation of the basal area per tree; BAPERTREE=(DBH/2)^2*PI() Units: square centimeters Domain: range (minimum = 0.95  maximum = 14655.18)
27. BAPERTREE_FLAG Definition: Non-numerical entries (na, nm) for basal area per tree (BAPERTREE) Domain: enum
28. BAPERHA Definition: Calculation of the basal area per hectare; BAPERHA=BAPERTREE/PLOTAREA Units: square meters per hectare Domain: range (minimum = 0.00  maximum = 45.23)
29. BAPERHA_FLAG Definition: Non-numerical entries (na, nm) for basal area per hectare (BAPERHA) Domain: enum
30. LCR Definition: Calculation of the live-crown ratio (ratio of live crown to total tree height); LCR=LCL/TRHT Units: number Domain: range (minimum = 0.00  maximum = 1.00)
31. LCR_FLAG Definition: Non-numerical entries (nm) for the live-crown ratio (LCR) Domain: enum
32. LCL Definition: Calculation of the length (height) of the live crown; LCL=TRHT-BLCHT Units: meters Domain: range (minimum = 0.0  maximum = 35.0)
33. LCL_FLAG Definition: Non-numerical entries (nm) for the live-crown length (LCL) Domain: enum
34. COMMENTS Definition: Comments on any topic Domain: freetext