330 likes | 847 Vues
Primary Productivity: rate of formation of energy-rich organic compounds from inorganic materials. This is usually the same thing as photosynthesis, but can also be chemosynthesis.Gross Primary Productivity (GPP): total amount of organic material fixed in the primary productivity processNet Primary Productivity (NPP): amount of total production left to support other trophic levels after losses from plant respiration.
E N D