active pool That part of a biogeochemical cycle in which the nutrient element under consideration is exchanged rapidly between the biotic and abiotic components. Usually the active pool is smaller than the reservoir pool, and it is sometimes referred to as the ‘exchange’ or ‘cycling’ pool.

active pool The part of a biogeochemical cycle in which the nutrient element under consideration exchanges rapidly between the biotic and abiotic components. Usually it is smaller than the reservoir pool, and is sometimes referred to as the ‘exchange’ or ‘cycling’ pool.

active pool The part of a biogeochemical cycle in which the nutrient element under consideration exchanges rapidly between the biotic and abiotic components. Usually the active pool is smaller than the reservoir pool, and it is sometimes referred to as the ‘exchange’ or ‘cycling’ pool.