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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
Write the equation that helps in deriving the net primary productivity of an ecosystem.
What is primary productivity?
State the relation between gross and net primary productivity.
Which of the following ecosystems is most productive in terms of net primary production?
Justify the pitcher plant as a producer.
The primary productivity in an ecosystem is expressed as ______.
- gm-2 yr-1
- gm-2 yr
- Kcal m-2 yr-1
- Kcal m-2
In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x(kcal m−2) yr−1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
What is the relationship between Gross Primary Productivity (GPP) and Net Primary Productivity (NPP)?
Which of the following is a limiting factor for productivity in terrestrial ecosystems?
How does plant species composition affect ecosystem productivity?
