Snags and Volume Flashcards
Volume regulation
Harvest the allowable cut each cutting cycle
Allowable cut
Annual growth rate x Cutting Cycle Length
Guiding Tree Diameter Limit
Harvesting trees in this diameter class and larger will provide the allowable cut
Snag Class 1
All limbs, pointed top, 100% bark, intact sapwood, height intact
Snag Class 2
Few limbs, top may be broken, some bark and height loss, sapwood decay
Snag Class 3
Limb stubs, broken bole, bark and sapwood sloughed and broken top
Snag Class 4
Few stubs, bole broken/rotten, 50% bark, sapwood sloughed
Snag Class 5
No stubs, broken and rotten bole, 20% bark, sapwood gone rotten 50%
Uneven Age Goal
Lot of small trees and very few large trees
J-Shape
Graphed DBH is J shaped = balanced uneven-aged stand
BDq
B- Basal Area
D- Maximum Diameter
q- Slope of your curve
Basal Area per Tree
DBH^2 * 0.005454