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Preferred Term:

primary productivity

A measure of the rate at which new organic matter is formed and accumulated through photosynthesis and chemosynthesis activity of producer organisms (chiefly, green plants). The rate of primary production is estimated by measuring the amount of oxygen released (oxygen method) or the amount of carbon assimilated by the plant (carbon method).
Concept Schemes:
Entry Terms:
  • primary production (ecology)
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RDF/XMLCreated 2006-01-19, last modified 2018-11-16