The relative influences of nitrogen and phosphorus on oceanic primary production

  title={The relative influences of nitrogen and phosphorus on oceanic primary production},
  author={Toby Tyrrell},
  • T. Tyrrell
  • Published 5 August 1999
  • Environmental Science
  • Nature
A simple model has the potential to resolve the long-running debate amongst oceanographers over whether nitrogen or phosphorus exerts overall control on oceanic primary production. A representation of the competition between nitrogen-fixing and other phytoplankton is inserted into a two-box global model of the oceanic nitrogen and phosphorus cycles. Homeostatic regulation of both nitrate and phosphate concentrations results, with surface waters more deficient in nitrate than phosphate in the… 
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  • V. Smith
  • Environmental Science
  • 1983
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