UV-B radiation and soil microbial communities

David Johnson (), Colin D. Campbell, John A. Lee, Terry V. Callaghan and Dylan Gwynn-Jones
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David Johnson: University of Sheffield, Western Bank
Colin D. Campbell: The Macaulay Land Use Research Institute
John A. Lee: University of Sheffield, Western Bank
Terry V. Callaghan: University of Sheffield, Western Bank
Dylan Gwynn-Jones: Institute of Biological Sciences, University of Wales

Nature, 2003, vol. 423, issue 6936, 138-138

Abstract: Abstract Stark and Hart question our finding1 that increased UV-B irradiation affects the biomass C:N ratio of Arctic soil microbial communities. Our data for microbial carbon biomass (Cmic; 1.0–3.1 mg per g soil) and nitrogen (Nmic; 0.1–0.3 mg per g soil) fall within the range presented by Stark and Hart (0.2–3.9 and 0.04–0.28 mg per g soil for Cmic and Nmic, respectively)2, but the C:N ratios in the control plots are greater than those for both similar3,4 and contrasting soil types2. However, we do not agree that this invalidates our conclusions.

Date: 2003
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DOI: 10.1038/423138a

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