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प्रश्न
Answer the following question.
Describe the inter-relationship between productivity, gross primary productivity, and net productivity.
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उत्तर
The rate of biomass production per unit area, over a time period by plant during photosynthesis is called productivity.
- It is expressed (kcal m-2)yr-1or g/m2/yr or g m-2y-1.
- The amount of biomass or organic matter produced per unit area over a time period in plants during photosynthesis is called primary production.

| * It is the rate of production of organic matter during photosynthesis in an ecosystem. | * It is the weight of the organic matter stored by the produces in a unit area/volume per unit time. |
| * Some of GPP is utilized in respiration. |
NPP = GPP - R |
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संबंधित प्रश्न
What is primary productivity?
Write the relationship between productivity, gross primary productivity, net primary productivity, and secondary productivity.
The biomes energy available for consumption by herbivores is called ______.
Which one of the following ecosystem is most productive in term of net primary production?
In the equation GPP − R = NPP R represents ______
Productivity is the rate of production of biomass expressed in terms of ______.
Which of the following ecosystems is most productive in terms of net primary production?
Justify the pitcher plant as a producer.
Why is the rate of assimilation of energy at the herbivore level called secondary productivity?
Which of the following is the unit of productivity of an Ecosystem?
