Overview   Biogeochemical Cycles   Spheres of B. Cycles   Nitrogen Properties   Simple Nitrogen Cycle   Human Influences   Spheres of the N Cycle   Choose a Sphere     Glossary BACK

To view the definition of any of the terms in this glossary, please click on the term name.     Ammonia (NH3), Ammonium Ion (NH4+)   Anthropogenic Inputs & Outputs   Elemental Compound   Fluxes   Henry's Law   Inputs   Isotopes of Nitrogen   Mediating Factors   (Biological, Chemical, and Physical) Natural Inputs & Outputs   Nitric Acid (HNO3), Nitrate Ion (NO3-)   Nitric Oxide (NO)   Nitrogen Dioxide (NO2)   Nitrogen Fixation   Nitrogen Species   Nitrous Oxide (N2O)   Organic Nitrogen   Oxidation and Reduction   Oxidation State   Outputs   Pool   Storage   Transformations   Urea (CO(NH2)2)   Volatilization   BACK