Loss of plant species after chronic low-level nitrogen deposition to prairie grasslands

Christopher M. Clark () and David Tilman
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Christopher M. Clark: Evolution and Behavior, 100 Ecology, 1987 Upper Buford Circle, University of Minnesota, St. Paul, Minnesota 55108, USA
David Tilman: Evolution and Behavior, 100 Ecology, 1987 Upper Buford Circle, University of Minnesota, St. Paul, Minnesota 55108, USA

Nature, 2008, vol. 451, issue 7179, 712-715

Abstract: Recovery from N deposition The use of nitrogen fertilizers and fossil fuel burning is causing nitrogen deposition in industrialized countries at up to seven times the pre-industrial rate. A long-term (23-year) study of prairie grasslands in Minnesota now suggests that the effects of such extended nitrogen deposition have been underestimated. Chronic low-level nitrogen addition led to a gradual loss of plant species diversity, but diversity had recovered 13 years after nitrogen addition had ceased, suggesting that some of the harmful effects of past deposition are reversed by reductions in the rate of deposition.

Date: 2008
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DOI: 10.1038/nature06503

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