Which of the following could be a result of inadequate tree protection zones?

Inadequate tree protection zones can lead to increased tree mortality, which is a significant concern in urban forestry and tree management. Tree protection zones are established to safeguard the root systems and overall health of trees, particularly during construction or other disturbances. When these zones are not properly maintained or are too small, several detrimental factors can come into play.

One primary concern is the compaction of soil, which restricts air and water movement to the roots, making it difficult for trees to absorb essential nutrients. Additionally, if the root zone is disturbed or damaged, it can lead to a decline in the tree's physiological function, making it more susceptible to diseases and pests. The stress caused by such adverse conditions can ultimately lead to mortality, as the tree's ability to thrive and grow is severely compromised.

In contrast, improved soil health or enhanced tree growth are outcomes that suggest a supportive environment for trees, whereas inadequate tree protection zones do not facilitate these positive results. Greater biodiversity typically stems from healthy ecosystems that include a variety of flora and fauna, and the disruption caused by neglecting tree protection zones can negatively impact these ecosystems as well.