Which method is NOT typically used to assess tree protection zones?

The seedling method is not typically used to assess tree protection zones. This is primarily because tree protection zones focus on preserving the health and viability of mature trees rather than assessing the growth or placement of seedlings.

In the context of tree protection, the other methods mentioned have specific applications:

• The site occupancy method evaluates whether the area around a tree is being disturbed or occupied by other elements, which informs how much protection is needed for the tree's roots and canopy.

• The trunk diameter method uses the size of the tree trunk to calculate the size of the tree protection zone, based on established formulas that take into account the growth requirements of mature trees.

• The drip line method defines the protection zone by the outer edge of the tree's canopy, recognizing that roots often extend beyond the visible drip line of foliage and are thus crucial for the tree's water and nutrient uptake.

Understanding these methodologies highlights the focus on mature trees rather than seedlings, which are not typically considered when assessing areas that require protection during construction or land development.