In a variable plot, how many trees should you have, on average, per plot?
No more than 5
5-10
10-15
At least 15
A variable plot will tend to include trees that are:
Smaller and further from plot center
Smaller and closer to plot center
Larger and further from plot center
Larger and closer to plot center
When using a glass prism, you should:
Hold the prism over the plot center
Keep your eye over plot center
Hold the prism up to each tree
Keep plot center between your eye and the prism
When using a glass wedge prism, a tree is in if:
The view of the tree trunk completely fills the prism
The view of the tree trunk does not completely fill the prism
The view of the tree trunk is completely shifted away from the view you can see with your naked eye
The view of the tree trunk overlaps with the view you can see with your naked eye
Suppose you begin sampling a stand with a BAF 20 prism. At your 3rd plot, you find you have more than the desired number of trees in your plot. What should you do?