Definitions for "Biogeochemical cycle"
The chemical interactions among the atmosphere, biosphere, hydrosphere, and lithosphere.
The chemical interactions that take place among the atmosphere, biosphere , hydrosphere, and geosphere.
The circulation (cycling) of chemical elements such as nitrogen, carbon, etc. in specific pathways from the abiotic portions of the environment into organic substances (flora and fauna) and then back again into abiotic forms.
The movement of a particular material through an ecosystem over long periods of time.