Describe the term "crown reduction."

Crown reduction refers to a pruning technique that involves selectively removing sections of the tree's canopy to decrease its overall height or spread while maintaining its natural shape and form. This method is often used to reduce the risk of branch breakage or tree failure due to excessive weight, as well as to improve light penetration and air circulation around the tree. By focusing on specific branches and selectively shortening or removing them, the aesthetic integrity of the tree is preserved, allowing it to continue growing healthily while minimizing potential hazards.

In contrast, other choices describe either alternative techniques or objectives that do not align with the definition of crown reduction. For instance, entirely removing a tree's canopy would lead to a drastic alteration in the tree's structure and health, and enhancing flower production or increasing foliage density represents different horticultural practices focused on promoting growth or reproductive aspects rather than size reduction.