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Gross primary production consists of the amount of light energy that is converted to chemical energy by photosynthesis per unit of time. This chemical energy is going to two places-- respiration and growth of new biomass. Net primary production omits the energy used in respiration... just the energy going to new plant growth.

Mathematically: (R = respiration)

NPP = GPR - R

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โˆ™ 2009-08-15 04:38:57
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Q: What is the difference between gross primary production and net primary production?
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