This approach, known as interplanting, encourages age diversity in the stand and minimizes aesthetic and environmental impacts of large-scale tree removal. Interplanting copies nature by providing new trees to take over before older trees come down. Diversity or monoculture in tree species replacement will usually be an issue in most communities. Species diversity stabilizes the urban forest and tends to reduce losses due to harmful insects or disease. While having similar maintenance requirements is a primary consideration in species selection, large-scale monocultures should be avoided.
Diversity also offers the adjacent property owners some individuality.
Again, citizen involvement is valuable in developing the rotation plan. Management planning for replacement trees must ensure the long-range maintenance for these replacement trees. Young trees require considerable care, such as watering, fertilizing, insect and disease control, and regularly scheduled pruning. Any plan must ensure long-range maintenance to protect the investment of public funds in replanting. For example, scheduled trimming of young trees reduces the need for expensive corrective pruning of mature trees.