1. A commercial thinning is needed when a stand has too many trees growing on it.
a) True b) False
2. When considering a CT, softwood stands should have at least a LC4 and hardwood stands should have at least a LC2.
3. Softwoods have deeper root systems than hardwoods and are more wind resistant.
4. Basal area is the area in square metres (or square feet) of the cross section of the trunk of a tree at breast height.
5. When thinning, the crowns of trees should generally be at least 1 metre apart. a) True b) False
6. Spring or fall is the best time for a CT.
7. Extraction trails should be laid out in a herring bone fashion.