Global change and biological soil crusts: effects of ultraviolet augmentation under altered precipitation regimes and nitrogen additions
Biological soil crusts (BSCs), a consortium of cyanobacteria, lichens, and mosses, are essential in most dryland ecosystems. As these organisms are relatively immobile and occur on the soil surface, they are exposed to high levels of ultraviolet (UV) radiation and atmospheric nitrogen (N) deposition...
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Veröffentlicht in: | Global change biology 2008-03, Vol.14 (3), p.670-686 |
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