Anatomy_of_Tree_Failure

Terminology to Know

Risk - the possibility of something undesirable or destructive happening. In this case, the "risk" of a tree is considered in terms of dangers to humans. So if a tree falls on a wilderness space far from people traffic, the risk is considered "low" or even zero.

Failure - a very special, arboriculture-specific term that refers to a part of a tree breaking off or falling down. A " branch failed" means that a branch has fallen off. A "tree failed" means that the entire tree fell down. 

Defect - A possible characteristic that could lead to tree failure.

Target - anything that might be damaged by a tree failure.

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