Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Functions (hierarchy name)
4. functions (activities)
5. [functions by general context]
6. maintenance

Narrower term/s

• avalanche protection
• landslide protection
• environmental protection[+]
  • landscape protection
• flood control
• lightning protection
• preservation (function)[+]
  • historic preservation
  • digital preservation
  • minimal intervention
  • formalin preservation
• life-saving
• site protection
• ultraviolet protection
• rodent control
• stewardship

Anotations

Scope note:

Generally refers to the activity of keeping people and things safe from harm or deterioration. For actions taken to prevent further changes or deterioration in objects, sites, or structures, use "preservation". When such actions are taken on buildings or other structures specifically for cultural, aesthetic, or historic reasons, use "historic preservation."