Write an essay on productivity of an ecosystem.
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❤. PRODUCTIVITY OF ECOSYSTEM ❤
❤. PRODUCTIVITY ❤
⭐. The ratw of production of biomass is called productivity of the ecosystem .
⭐. It is of two types
i) primary productivity.
ii) Secondary productivity.
❤. PRIMARY PRODUCTIVITY ❤
⭐. The amount of biomass (or) organic matter produced perunit area over a period of time by plants, during photosynthesis is called primary productivity.
i)Gross Primary Productivity (GPP)
ii) Net primary productivity(NPP)
✨. GROSS PRIMARY PRODUCTIVITY( GPP)✨
⭐. It is the rate of production of organic matter during photosynthesis.
⭐.A considerable ammount of GPP is utilized by plants for their catabolic process (respiration)..
✨. NET PRIMARY PRODUCTIVITY (NPP)✨
⭐. Gross primary productivity minus respirator loss(R) is the net primary productivity .
⭐. On average about 20-25% of GPP is used for the catabolic activity.
FORMULA : Npp = GPP - R.
⭐. Net primary productivity is the biomass available for the consunption of the herbivores and decomposers.
❤. SECONDARY PRODUCTIVITY ❤
⭐. It is defined as the rate of formation of new organic matter by consumers.
Productivity of ecosystem :
The quantity or the measure of production of biomass in an ecosystem is termed as productivity.
Primary productivity
Quantity of biomass that is produced in a unit area in a time period during photosynthetic process is termed as primary production.
It depends on the plants' photosynthetic ability and also on the availability of nutrients.
Secondary productivity
It is the quantity of the biomass formed by the consumers.
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