Terrestrial Carbon Cycle


  1. Draw an landscape showing the reservoirs. Label the reservoirs.
  2. Use arrows to represent the fluxes that connect reservoirs. Label the arrows.
  3. When finished, check that you have correct number of reservoirs and fluxes.


Where carbon and its compounds are stored or retained:

  1. animals
  2. atmosphere
  3. decomposers
  4. plants
  5. soil


Movement of carbon.

  1. Animals breathe CO2 to the atmosphere. Label = animal respiration.
  2. Animals eat the plants and convert it to animal tissue. Label = consumption.
  3. Decomposers (bacteria and fungi) in soil convert dead organisms and litter into CO2 that stays in soil. Label = decomposition.
  4. Plant release CO2 to the atmosphere. Label = plant respiration.
  5. Plants take-up CO2 from the atmosphere. Label = assimilation.
  6. Soil gradually releases CO2 to the atmosphere. Label = soil respiration.