What does the term "deadwooding" refer to?

The term "deadwooding" specifically refers to the practice of removing dead branches from a tree. This process is essential for maintaining tree health and safety, as dead branches can attract pests and diseases, pose a risk of falling, and impede the growth of the tree by diverting energy away from healthy areas. Removing these dead branches helps improve overall tree structure, enhances light penetration, and facilitates better air circulation.

The other options involve activities that, while related to tree care, do not capture the specific meaning of "deadwooding." Pruning unnecessary branches deals with shaping and managing the size of a tree but doesn't focus solely on dead wood. Cutting live branches is related to promoting growth rather than addressing the removal of dead material. Planting new trees is an entirely different activity focused on growth and replacement rather than the maintenance of existing trees. Thus, the correct understanding of "deadwooding" directly aligns with the removal of branches that are no longer alive.