Question

GPP – R = NPP
What does ‘R’ represent in the given equation for productivity in an ecosystem? [Delhi 2014C]

Answer 1

Answer:

Explanation: respiration coz when we respire we loose energy

Answer 2

Answer:

The R refers to the respiratory losses.

Explanation:

• The Net Primary Production, or NPP, is equal to the Gross Primary Production, or GPP, less the Carbon respiration, or R, and represents the system's overall production.
• The equation is NPP = GPP – R.
• The NPP measures the ecosystem's overall plant productivity. The ecosystem becomes more resilient by having a consistent efficiency in NPP. The pace at which plants store energy through photosynthesis is referred to as the GPP.
• Respiration losses- ‘R’ represent in the given equation for productivity in an ecosystem.
• NPP, or net primary productivity, is the rate at which biomass or energy accumulates. The energy used for metabolic functions like breathing is not included in gross production (GPP).

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