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What is NPP

Specify the formula of the net primary production (NPP)? Explain in detail. How NPP does is related to the energy pyramids?

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Net primary production or NPP is described as the gross primary productivity less organic material consumed as energy source in the metabolism of producers: NPP = GPP - (organic material spent in aerobic respiration). It describes the organic material available within the first tropic level. < /FONT >

The base of energy pyramids should represent the NPP and not GPP as the idea of these pyramids is to display the available energy in each trophic level of food chain.

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