OBJECTIVE FORESTRY

FORESTRY

GENERAL FORESTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following tools can be used to determine the basal area?
A
Wedge Prism, Relaskop
B
Relaskop, Dot Grid
C
Wedge Prism, Dot Grid
D
Log Rule, Dot Grid
Explanation: 

Detailed explanation-1: -The Relascope is very similar to the angle gauge and the wedge prism in that it can be used to find the basal area of a tree from a point depending on the basal area factor in a variable radius sampling method.

Detailed explanation-2: -The Spiegel-Relaskop is mainly used to capture the stock footprint using the angle-count sampling method to determine basal area density in forests by simple counting. Thus, the forest can be optimized for forestry or the results can be used for investigations.

Detailed explanation-3: -With a prism you need to use the prism as the centre of the plot and rotate around it. Multiply the number of in trees by 2 to get the basal area for the stand in square meters per ha. (For example, if you count 20 trees, your basal area is 40 square metres per hectare).

Detailed explanation-4: —The prism helps to train the eye to estimate the basal area of stands, use it. For more detailed information on the differences on fixed area sampling versus variable point sampling (using a prism) please read below.

There is 1 question to complete.