title: The global nitrogen cycle: past, present and future.
abstract: Food and energy production converts N(2) 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.
authors.affiliation: Environmental Sciences Department, University of Virginia, 22904, Charlottesville, Virginia, USA. jng@virginia.edu
authors.forename: James N
authors.initials: JN
authors.lastname: Galloway
mesh_terms: D017753:Ecosystem; D004777:Environment; D004784:Environmental Monitoring; D004787:Environmental Pollution; D005544:Forecasting; D005843:Geography; D014943:Global Health; D006801:Humans; D008954:Models, Biological; D009584:Nitrogen / Q000378:metabolism*; D009930:Organic Chemicals / Q000737:chemistry
chemical_list: D009930:Organic Chemicals; D009584:Nitrogen