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प्रश्न
Productivity is the rate of production of biomass expressed in terms of ______.
विकल्प
(kcal m–3) yr–1
g–2 yr–1
g–1 yr–1
(kcal m–2) yr–1
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उत्तर
Productivity is the rate of production of biomass expressed in terms of g–1 yr–1.
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संबंधित प्रश्न
How are productivity, gross productivity, net primary productivity and secondary productivity interrelated ?
Secondary productivity is rote of formation of new organic matter by ______.
Which of the following ecosystems is most productive in terms of net primary production?
Why are oceans least productive?
Why is the rate of assimilation of energy at the herbivore level called secondary productivity?
Primary productivity varies from ecosystem to ecosystem. Explain?
Justify the following statement in terms of ecosystem dynamics. “Nature tends to increase the gross primary productivity, while man tends to increase the net primary 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.
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 rate at which biomass is synthesised by a trophic level per unit area per unit time called?
Which of the following best describes Net Primary Productivity (NPP)?
What is the relationship between Gross Primary Productivity (GPP) and Net Primary Productivity (NPP)?
Which organismal category is responsible for producing primary productivity in ecosystems?
Which type of productivity involves the transfer and assimilation of organic matter across consumer trophic levels?
Which of the following is a limiting factor for productivity in terrestrial ecosystems?
Which nutrient is essential for enzyme synthesis and chlorophyll production in plants?
How does plant species composition affect ecosystem productivity?
Which human activity indirectly reduces ecosystem productivity?
Which of the following correctly represents the energy flow in an ecosystem based on productivity concepts?
