Certified Arborist Test Practice Test
Certified Arborist Test Trees and Construction 2
What is the Critical Root Zone (CRZ) and how is it typically calculated?
Select your answer
A
The area directly under the canopy; measured by crown drip line
B
A circular area around the trunk; typically 1 foot of radius per inch of trunk diameter
C
The top 2 inches of soil; measured by soil tests
D
The area between the trunk and the first lateral root
Hint
