Question

Explain how annual net ecosystem production can vary considerably from year-to-year while gross primary production and ecosystem respiration are relatively less variable.

Answer 1

Net primary production is the rate at which all the plants in an ecosystem produce net useful chemical energy. it is equal to the difference between the rate at which the plants in an ecosystem produce useful chemical energy(GPP) and the rate at which they use dome of that energy during respiration.

Net ecosystem production is defined as the difference between fross primary production and total ecosystem respiration, represents the total amount of organic corbon in an ecosystem available for storage, export as prganic carnon dioxide through fire or ultrviolet oxidation.In terms of NPP per unit area, the most productive systems are estuaties, swamps and marshes, tropical rain forests and temperature rain forest. NET primary production per unit area of the worlds common ecosystems.

Net primary productivity or the production of plant biomass, is equal to all of the carbon taken up ny the begetation through photosynthasis called gross primary production or gpp') minus the carbon that is lost to respiration.

Acutally ecosystem is a biological community of interacting organisms and thie physical environment. in generall use a complex network or inter connected system.