Factors To Consider When Deciding Whether To Thin Flashcards
1
Q
Name the factors
A
- Site factors
- Objectives
- Stocking density
- BA threshold
- Visual assessment
- Reason for thinning
- access
- timber prices
- Disease
2
Q
Site factors
A
-Risk of windblown trees along road and right of way, age of trees
3
Q
Objectives
A
- What does the land owner wish to achieve?
- Obtain maximum income from site? Biodiversity?
4
Q
Stocking density
A
-number of trees and the species
5
Q
BA threshold
A
-Based on the BA threshold is it ready to thin?
6
Q
Visual assessment
A
- think, weak stems and narrow crowns
- is less than 1/3 of the tree live crown?
- More than 70-80% canopy cover
7
Q
Reason for thinning
A
- Increase timber quality
- Intermediate financial return
- Increase stability - wind damage
- Environmental considerations - let more light in
8
Q
Access
A
- Timber extraction trucks or tractors
- Stacking areas
- Terrain
9
Q
Timber prices
A
-Timber market and prices
10
Q
Disease
A
-Any diseased trees that need to be thinned out
