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प्रश्न
Write the relationship between productivity, gross primary productivity, net primary productivity, and secondary productivity.
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उत्तर
Productivity: It is the rate of production of biomass at any trophic level at any given interval of time.
Gross productivity: It is the rate of production of organic matter by green plants per unit time per unit area. In other words, it is the total amount of productivity.
Net primary productivity: It is the difference between gross primary productivity and the loss due to respiration. Net primary productivity is the difference between gross primary productivity and respiratory loss.
NPP = GPP - R
Secondary productivity is the rate of formation of organic matter by consumers.
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संबंधित प्रश्न
What is primary productivity?
How are productivity, gross productivity, net primary productivity and secondary productivity interrelated ?
Distinguish between primary and secondary productivity.
State the relation between gross and net primary productivity.
What is the primary productivity of an ecosystem and how is it expressed?
Secondary productivity is rote of formation of new organic matter by ______.
Productivity is the rate of production of biomass expressed in terms of ______.
Why is the rate of assimilation of energy at the herbivore level called secondary productivity?
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.
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?
