A qanāt (from, in "kariz") is a water management system used to provide a reliable supply of water for human settlements and irrigation in hot, arid and semi-arid climates.
A qanāt (from, in "kariz") is one of a series of well-like vertical shafts, connected by gently sloping tunnels. They create a reliable supply of water for human settlements and irrigation in hot, arid and semi-arid climates.