is the repeated pathway of particular nutrients or elements from the environment through one or more organisms back to the environment: includes the carbon cycle, the nitrogen cycle, the phosphorus cycle
the exchange or transformation of elements among the living (organic and biotic) and nonliving (inorganic and abiotic) components of an ecosystem.
Flow of nutrients through agro-ecosystems.
Circulation of exchange of elements such as nitrogen and carbon between non-living and living portions of the environment. Includes all mineral and nutrient cycles involving mammals and vegetation. ( FEMAT, IX-23)
the process by which nutrients move from the soil to plants, animals and back to the soil again. These nutrients are then used by the plant and thus the cycle continues.
All the processes by which nutrients are transferred from one organism to another. For instance, the carbon cycle includes uptake of carbon dioxide by plants, ingestion by animals, and respiration and decay of the animal.
The exchange of elements between the living and non-living components of an ecosystem.