Which of the following statements is true regarding tree protection zones?

The statement regarding tree protection zones being suitable for mature trees at a measurement of two feet per inch of Diameter at Breast Height (DBH) is accurate. This guideline emphasizes the importance of extending protection around the tree's root system, which is crucial for maintaining overall tree health and stability. Mature trees have extensive root systems that can be significantly impacted by construction activities or soil disturbances.

By providing a buffer of two feet per inch of DBH, this guideline helps ensure that a significant portion of the root zone is preserved, allowing for adequate water and nutrient absorption, as well as minimizing soil compaction and damage that can occur during nearby construction. This level of consideration is particularly vital for mature trees, which are often more susceptible to damage due to their size and the development of their root systems.

Other options present different misconceptions about the appropriate size and relevance of tree protection zones, but only the two feet per inch of DBH accurately reflects best practices in arboricultural management for mature trees. Understanding these guidelines is essential for anyone involved in tree management or arborist practices, ensuring the longevity and health of trees in urban and suburban environments.