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the gross primary productivity of an ecosystem is 3.5 kgc/m2/year, and the energy needed by the producers for their own respiration is 3.0 kgc/m2/year. what is the net primary productivity of such an ecosystem?

Sagot :

The net primary productivity of the ecosystem would be 0.5 kgc/cm2/year

The net primary productivity represents the amount of food produced by the ecosystem after the amount burned by respiration has been removed from the total food produced.

The gross primary productivity refers to all the food produced or photosynthesis that takes place in the ecosystem.

Thus:

Net Primary Productivity (NPP) = Gross Primary Productivity (GPP) - Respiration (R)

In this case, GPP = 3.5 kgc/m2/year, R = 3.0 kgc/m2/year

Therefore:

NPP = 3.5 - 3.0

           = 0.5 kgc/cm2/year

More on ecosystem productivity can be found here: https://brainly.com/question/1909602