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प्रश्न
Why are oceans least productive?
उत्तर
Oceans are the least productive because
- There is insufficient radiation as sunlight decreases with the increasing depth of the ocean.
- Oceans are nitrogen deficient which is an important nutrient for plants.
- Conditions oi high salinity which is not favourable for all plants.
- There is no substratum to support plants.
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संबंधित प्रश्न
What is primary productivity?
What is primary productivity?
Why does primary productivity vary in different types of ecosystems?
Answer the following question.
Describe the inter-relationship between productivity, gross primary productivity, and net productivity.
How much of the net primary productively of a terrestrial ecosystem is eaten and digested by herbivores?
Which one of the following ecosystem has the highest annual net productivity?
In the equation GPP − R = NPP R represents ______
Which of the following ecosystems is most productive in terms of net primary production?
Which of the following ecosystems will be more productive in terms of primary productivity? Justify your answer. A young forest, a natural old forest, a shallow polluted lake, alpine meadow.
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.
