The continuous movement of nitrogen through the atmosphere, soil, water and living organisms, involving fixation of inert atmospheric nitrogen into usable forms, its uptake and cycling through food webs, and its eventual return to the atmosphere through denitrification. As a nutrient essential to all life yet scarce in a biologically usable form, the nitrogen cycle's balance strongly limits ecosystem productivity.
Facts
Process TypeBiogeochemical or Pedological 1 Sources
1. Nitrogen Cycle (Wikipedia)
Wikimedia FoundationIntroductionQuote, Introduction
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmospheric, terrestrial, and marine ecosystems.
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