Impact of nitrogen deposition on the species richness of grasslands

Stevens, Carly and Dise, N.B. and Mountford, J.O. and Gowing, D.J.G. (2004) Impact of nitrogen deposition on the species richness of grasslands. Science, 303 (5665). pp. 1876-1879. ISSN 0036-8075

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Abstract

A transect of 68 acid grasslands across Great Britain, covering the lower range of ambient annual nitrogen deposition in the industrialized world (5 to 35 kg Nha–1 year–1), indicates that long-term, chronic nitrogen deposition has significantly reduced plant species richness. Species richness declines as a linear function of the rate of inorganic nitrogen deposition, with a reduction of one species per 4-m2 quadrat for every 2.5 kg Nha–1 year–1 of chronic nitrogen deposition. Species adapted to infertile conditions are systematically reduced at high nitrogen deposition. At the mean chronic nitrogen deposition rate of central Europe (17 kg Nha–1 year–1), there is a 23% species reduction compared with grasslands receiving the lowest levels of nitrogen deposition.

Item Type: Journal Article
Journal or Publication Title: Science
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 53437
Deposited By: ep_importer_pure
Deposited On: 03 Apr 2012 13:21
Refereed?: Yes
Published?: Published
Last Modified: 10 Jun 2019 20:43
URI: https://eprints.lancs.ac.uk/id/eprint/53437

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