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प्रश्न
What is the primary productivity of an ecosystem and how is it expressed?
उत्तर
Primary production is defined as the amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis. It is expressed in terms of weight (g–2) or energy (kcal m–2)
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संबंधित प्रश्न
Write the equation that helps in deriving the net primary productivity of an ecosystem.
How are productivity, gross productivity, net primary productivity and secondary productivity interrelated ?
Distinguish between primary and secondary productivity.
Why does primary productivity vary in different types of ecosystems?
Explain what does the equation given below show :
NPP = GPP – R
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?
Which one of the following ecosystem has the highest annual net productivity?
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.
