depletions

(n) : The consumption of a resource faster than it can be replenished.

(n) : The act of depleting, or the state of being depleted; exhaustion.

(n) : (accounting, mining, timber industry, oil industry) gradual expense or use of natural resources over time.

(n) : (medicine, archaic) The act of relieving congestion or plethora, by purging, blood-letting, or reduction of the system by abstinence.