Tree management

Managing trees in an urban context is anything but simple and must be planned for the long term. Therefore, planning over time is necessary, which involves not only the replacement of felled or deteriorated trees but also the planting of a sufficient number of new plants to preserve and, as far as possible, increase the city's green heritage.

The general objectives of public tree management are:

• Ensuring the preservation and improving the health of trees
• Protecting the safety of citizens and managing exposure to risk
• Establishing guidelines for monitoring and inspection
• Promoting the professional development of technical and operational staff

Determining the need for intervention is usually based on periodic surveys conducted by specialists, supplemented by general considerations based on reflections and tools that take into account various aspects:

• Overall condition of the tree stock
• Intensity of use
• Location within the city
• Exposure to risk
• Uniqueness, protections, and legal constraints
• Damage and defects to roots due to excavations or other interventions
• List of the most at-risk species
• Statistics of tree failures/incidents

Interventions carried out in the area follow a linear strategy that aims at a contained use of resources, both human and financial, and that sets priorities and intervention needs based on objective criteria. The general objective is the conservation of the tree heritage, diversifying it and identifying the most suitable species and genera in relation to the ongoing climatic evolution.

Special consideration is given to monumental or valuable trees, identified based on precise criteria, for which specific measures and care are adopted.