Plant needs energy for growth, transport and maintenance of vital functions as animals do. To get the energy required, they oxidize (i.e. burn the photosynthetically fixed sugars). At the same time, water and carbon dioxide are released as waste products. Respiration occurs in all living plant parts (i.e. in the leaves, trunk and roots).
Explore obervations made at Hyytiälä Forestry Field Station and see how plant respiration affects carbon flow.