Question

Write the equation that helps in deriving the net primary productivity of an ecosystem.

Answer 1

In order to be oriented towards the development and reproduction of primary producers, net primary production is possible. As such, it is affordable to herbivores for consumption.

Complete answer:
- Gross primary production (GPP) is the quantity of chemical energy which primary producers generate over a given period of time, usually expressed as carbon biomass.
- Primary producers use a certain percentage of this fixed energy for cell respiration and preservation of mature tissues (“development respiration" and "preservation respiration").
- Net primary production (NPP) is related to the remaining fixed energy (photosynthate mass). The generation of chemical energy of organic compounds through living organisms is the primary production.
- The key source of this energy is solar, but lithographic species use the chemical energy in inorganic molecules to drive a small portion of primary production.
Gross Primary Productivity minus Respiration Loss (R) is provided by Net Primary Productivity (NPP).

The equation for obtaining NPP is therefore presented by:-
NPP = GPP - R

Note: Net primary production is the level at which net usable chemical energy is produced by all the photosynthetic organisms in an ecosystem. As stated, the difference between the rate where the useful chemical energy (GPP) is generated by plants in an environment and the rate in which they use any of that energy throughout respiration is equivalent.