The rate at which energy is stored (i.e. the amount of energy fixed in a given time) by photosynthetic and chemosynthetic activity of producer organisms (chiefly green plants) in the form of organisms substances which can be used as food materials). Values are expressed in Grams of dry organic matter (or carbon) produces per square meter per day. Odum (1959)
PRIMARY PRODUCTIVITY
Meaning of PRIMARY PRODUCTIVITY in English
Fishery English glossary. Английский глоссарий рыболовства . 2012