Question:
Differentiate between Net primary productivity and Gross primary productivity in an ecosystem.
Differentiate between Net primary productivity and Gross primary productivity in an ecosystem.
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NPP is the usable energy stored in biomass, while GPP includes all energy captured before accounting for respiration losses.
Updated On: Jan 13, 2026
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Solution and Explanation
| Property | Gross Primary Productivity (GPP) | Net Primary Productivity (NPP) |
|---|---|---|
| Definition | Total amount of organic matter produced by producers via photosynthesis. | Amount of organic matter remaining after respiratory losses by producers. |
| Energy Used in Respiration | Includes energy used in respiration. | Excludes energy used in respiration. |
| Formula | GPP = NPP + Respiration | NPP = GPP - Respiration |
| Represents | It represents the total energy captured. | It represents the energy available to herbivores and decomposers. |
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