First, CARBON is base element forming our whole ecosystem. Carbon is able to form 4 bonds with 4 other specific atoms or multiple bonds form with one or more atoms.
And the carbon cycle is the circulation of carbon element which exists in everywhere such as
Then, What about the forest ecosystem? How forest related with Carbon Cycle?
So, forest ecosystem is included in Biosphere, and also the trees affects Atmosphere environment. Two specific ways plants' carbon cycling processes which made balance of carbon(CO2) amount in atmosphere are Photosynthesis and Cellular Respiration.