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TREE DATA National Manual Version 1.55
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Subplot Number Coded separately from tree number
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Tree Record Number Three digit code SK2: Georgia use same old tree numbers, start with next available for new trees SK 1, 3: Start at 001 SK 9: Arkansas start at 001
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Condition Class Number Put the trees in the condition they belong to:
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Azimuth & Horizontal Distance No change
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Present Tree Status Formerly called “Tree History” The following New codes are one digit: 0 No Status 1Live Tree 2Dead 3Removal 4Missing
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SK2 remeasured trees Code “0” for No Status – Tree is not presently in the sample (remeasured plots only). The tree was incorrectly tallied at the previous survey or currently is not tallied due to definition or procedural change. Code “4” for Missing – A tree was tallied in previous inventory but now is missing due to natural causes such as landslide, fire, etc. (remeasured plots only).
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New Tree Reconcile For remeasured locations only Record a NEW TREE RECONCILE for any new tally tree that was not tallied in the previous inventory; this code is used to identify the reason a new tree appeared in the inventory.
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Codes: 1.Ingrowth – New tally tree not qualifying as through growth (includes reversions and, on sample kind = 2 plots, the new off-set micorplot tally). 2.THROUGH Growth – New tally tree 5.0 inches DBH and larger within the microplot (including co-located microplot). 3.Missed Live Tree – A live tree missed at previous inventory and that is live, dead or removed now 4.Missed Dead – A dead tree missed at previous inventory and that is dead or removed now.
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Lean Angle Record the code that describes the angle of lean from vertical of the tree from the base to top of actual length. Trees supported by other trees or by their own branches are considered standing. 0Standing (less than 45 degrees of lean) 1 Down (more than 45 degrees of lean)
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Species There are several Species codes that have changed!! Use code 299 for unknown dead conifers and 999 for unknown dead hardwoods when the generic or species codes cannot be used. The generic code (e.g. 400, 540) should only be used when you are sure the species is on the species list, but you cannot differentiate among acceptable species.
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Current Diameter at Breast Height (DBH) The following has changed:
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Questions about DBH What do you do when you measure a diameter above 4.5’ and it is a 10.9” Hardwood? Do you give this tree a Tree Grade? What do you do when the tree is 4.9” above an abnormality @ 4.5’
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DBH for Remeasured Trees Remeasuring the diameter of a tree tallied at a previous survey, take the measurement at the location monumented by the previous crew unless it is not physically possible 12 inchesExcept the previous location is more than 12 inches beyond where the diameter should be measured according to current protocols Assign a DIAMETER CHECK code of 2 whenever the point of remeasurement is moved.
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Length To Diameter Measurement Point For those trees measured directly at 4.5 ft above the ground, leave this item blank. If the diameter is measured above 4.5 ft, record the actual length from the ground, to the nearest 0.1 in
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Percent Rotten/Missing Cull Formerly called “Cubic Foot Cull” No changes except instead of 5% increments we are now coding Rotten/Missing Cull to the nearest 1%
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Percent Board Foot Cull No changes except instead of 5% increments, we are now coding Rotten/Missing Cull to the nearest 1% Make changes on page App 3-16
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Total Length & Actual Length TOTAL LENGTH is to the nearest 1.0 ft from ground level to the tip of the apical meristem. If the tree has a broken or missing top, estimate what the total length would be if there were no missing or broken top. ACTUAL LENGTH – for trees with broken or missing tops, record the length of the remaining portion of the tree.
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Length Method Record the code that indicates the method used to determine tree lengths. 1 Total and actual lengths are field measured with a measurement instrument (e.g., clinometer, relascope, tape) 2 Total length is visually estimated, actual length is measured with an instrument. 3 Total and actual lengths are visually estimated.
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Compacted Crown Ratio No real change except that the coding is the actual percent No range codes
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Fusiform/Comandra Rust/Hardwood Dieback Record the incidence of fusiform, comandra rust and dieback. 0 None 1 Fusiform, Comandra Rust: Only on slash and loblolly 2 Dieback: HARDWOODS ONLY
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Dieback Severity Record the severity of hardwood dieback 1 = 10 to 19% 2 = 20 to 29% Etc….
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Cause of Death Record the cause of death for all trees that have died, been cut or moved into a landcleared or remeasured condition since the previous survey. If cause of death cannot be reliably estimated, record unknown/not sure. 10 Insect 20 Disease 30 Fire 40 Animal 50 Weather 60 Vegetation (suppression, competition, vines/kudzu) 70 Unknown/not sure/other
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80 Human (other than below) 81 Logging (cut or killed, utilized or not utilized) 82 Timber Stand Improvement 83 Landclearing (cut or killed, utilized or not utilized) 90Physical (hit by falling tree)
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5200 Mortality Year Record the estimated year that remeasured trees died or were cut Examples: 1998, 1999, 2000, etc.
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5220 Utilization Class Record the code to identify cut trees that have been removed from the site. 00 Not utilized 11 Commercial utilization – some portion of the tree removed for commercial purposes. 12 Non-commercial utilization – some portion of the tree removed for non- commercial purposes.
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Tree Notes Record notes pertaining to an individual tree as called for to explain or describe another variable
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