Ecosystem processes are the events and actions that link organisms with their environment. Examples of ecosystem processes include nutrient cycling, carbon sequestration, primary productivity, and decay.
Source: Hardy, Colin C., Ottmar, Roger D., Peterson, Janice L., Core, John E., and Seamon, Paula. 2001. Smoke Management Guide for Prescribed and Wildland Fire 2001 Edition. Produced by the National Wildfire coordinating Group Fire Use Working Team.