conservancy

the careful maintaining and protection of something valuable especially in its natural or original state <she's devoted her life to conservancy of the rain forest> Synonyms conservation, preservation, sustentationRelated Words care, maintenance, upkeep; salvation, saving; defense, guardianship, guarding, keeping, protection, safeguarding, safekeeping; economy, husbandry, managementNear Antonyms dereliction, ignoring, neglect, squandering, waste; destruction, ruin; damage, harm, hurt, injury