conservation (n.)

• attention
• care
• conservancy
• control
• custody
• economy
• governing
• guardianship
• husbandry
• keeping
• maintenance
• management
• preservation
• protection
• safekeeping
• salvage
• salvation
• saving
• storage
• stowage
• supervising
• supervision
• support
• sustentation
• upkeep
• warehousing