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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?
What is primary productivity?
Explain what does the equation given below show:
NPP = GPP – R
Secondary productivity is rote of formation of new organic matter by ______.
Which one of the following ecosystem is most productive in term of net primary production?
Which one of the following ecosystem has the highest annual net productivity?
Justify the pitcher plant as a producer.
Why is the rate of assimilation of energy at the herbivore level called secondary productivity?
The primary productivity in an ecosystem is expressed as ______.
- gm-2 yr-1
- gm-2 yr
- Kcal m-2 yr-1
- Kcal m-2
Primary productivity in an ecosystem refers to the rate of generation of ______.
