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Elevated UV-B radiation effects on experimental grassland communities


L. Norton, tel +44/ (0)1603 593421, fax +44/ (0)1603 592250, e-mail
1Present address: Centre for the Study of Environmental Change and Sustainability, The University of Edinburgh, John Muir Building, The Kings Buildings, Mayfield Rd, Edinburgh EH9 3JL


Experimental grassland communities (turves) were exposed to supplemental levels of UV-B radiation (280–315 nm) at an outdoor facility, under treatment arrays of cellulose diacetate-filtered fluorescent lamps which also produce UV-A radiation (315–400 nm). Control treatments consisted of arrays of polyester-filtered lamps, which allowed for exposure to UV-A radiation alone, and arrays of unenergized lamps allowing for exposure to ambient levels of solar radiation.