Science in China Series C: Life Sciences

, Volume 48, Supplement 2, pp 669–678 | Cite as

The global nitrogen cycle: Past, present and future

  • James N. Galloway


Food and energy production converts N2 to reactive N species that cascade through environmental reservoirs and in the process impact human and ecosystem health. This presentation will examine the impact of increased N mobilization on the global N cycle by contrasting N distribution in the late-19th century with those of the late-20th century. The presentation will give a general overview of regional differences and will conclude with a projection of the global N cycle for 2050.


global N cycle human Nr creation N budgets consquences of N cycle alteration 


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Copyright information

© Science in China Press 2005

Authors and Affiliations

  • James N. Galloway
    • 1
  1. 1.Environmental Sciences DepartmentUniversity of VirginiaCharlottesvilleUSA

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