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प्रश्न
Write the equation that helps in deriving the net primary productivity of an ecosystem.
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उत्तर
Net primary productivity (NPP) in an ecosystem can be derived using the following equation:
NPP = GPP (Gross primary productivity) − R (Respiratory losses).
संबंधित प्रश्न
What is primary productivity?
How are productivity, gross productivity, net primary productivity and secondary productivity interrelated ?
Distinguish between primary and secondary productivity.
What is primary productivity?
Why does primary productivity vary in different types of ecosystems?
State the relation between gross and net primary productivity.
Explain what does the equation given below show :
NPP = GPP – R
Answer the following question.
Describe the inter-relationship between productivity, gross primary productivity, and net productivity.
Write the relationship between productivity, gross primary productivity, net primary productivity, and secondary productivity.
Which one of the following ecosystem has the highest annual net productivity?
If A = Gross primary productivity, B = Net primary productivity and C = Respiration losses, then what will be the correct relation between them?
Justify the pitcher plant as a producer.
Why are oceans least productive?
Why is the rate of assimilation of energy at the herbivore level called secondary productivity?
Use the information provided in the table given below to answer the following questions:
| Tropic level | Net Production(KJm-2y-1) | Respiration (KJm-2y-1) |
| Top Carnivore | 50 | 35 |
| Carnivores | 420 | 378 |
| Herbivores | 4490 | 4041 |
| Producers | 45000 | 40,367 |
- Calculate the gross primary productivity.
- Analyze the trend in the Net Production from Producers to Top Carnivore. Give a reason for your observation.
