Regarding the Gross Primary Productivity (GPP | vedclass

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Question

(B) Gross Primary Productivity $(GPP)$ is the total amount of organic matter produced by producers through photosynthesis in an ecosystem per unit are

Vedclass · Accepted Answer

Gross Primary Productivity is always greater than Net Primary Productivity.

Vedclass · Answer

(B) Gross Primary Productivity $(GPP)$ is the total amount of organic matter produced by producers through photosynthesis in an ecosystem per unit area over a time period.Some of this produced energy is consumed by the producers themselves for their own respiration $(R)$.Net Primary Productivity $(NPP)$ is the remaining biomass available for consumption by heterotrophs.The relationship is defined by the equation: $NPP = GPP - R$.Since $R$ is always a positive value,$GPP$ must always be greater than $NPP$ $(GPP > NPP)$.

Column-$I$	Column-$II$
$(a)$ $\text{NPP}$ of ocean	$(i)$ $115$ billion tons
$(b)$ Annual $\text{NPP}$ of the whole biosphere	$(ii)$ $170$ billion tons
$(c)$ $\text{NPP}$ of terrestrial ecosystem	$(iii)$ $55$ billion tons
$(d)$ Secondary productivity	$(iv)$ Heterotrophs

Regarding the Gross Primary Productivity $(GPP)$ and Net Primary Productivity $(NPP)$ of an ecosystem,which of the following statements is correct?

Similar Questions

At which of the following levels can Net Primary Productivity $(NPP)$ be obtained?

The biomass available for consumption by the herbivores and the decomposers is called:

Distinguish between:
$(a)$ Litter and detritus
$(b)$ Primary and secondary productivity

$A$ is required for higher primary productivity. $B$ have the lowest primary productivity as the soil is deficient in moisture.
Choose the correct option for $A$ and $B$.

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