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The influence of nitrogen in stemflow and precipitation on epiphyticbryophytes, Isothecium myosuroides Brd., Dicranum scoparium Hewd. and Thuidium tamariscinum (Hewd) Schimp of Atlantic oakwoods.

Leith, I. D.; Mitchell, R. J.; Truscott, A.-M.; Cape, J. N.; van Dijk, N.; Smith, R. I.; Fowler, D.; Sutton, M. A.. 2008 The influence of nitrogen in stemflow and precipitation on epiphyticbryophytes, Isothecium myosuroides Brd., Dicranum scoparium Hewd. and Thuidium tamariscinum (Hewd) Schimp of Atlantic oakwoods. Environmental Pollution, 155 (2). 237-246. 10.1016/j.envpol.2007.11.031

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Abstract/Summary

The spatial relationship between the concentration and deposition of the major ions in precipitation and stemflow and their influence on the tissue nitrogen concentration of 3 epiphytic bryophytes on Quercus petraea and Q. robur was investigated at 7 UK Atlantic oak woodland sites with a range of total N deposition of 55-250 mmole m-2. The main driver of change in tissue N concentrations of 3 epiphytic bryophytes (Isothecium myosuroides Brid. (Eurhynchium myosuroides (Brid.) Schp.), Dicranum scoparium (Hedw.) and Thuidium tamariscinum (Hedw.) was total N deposition in stemflow, dominated by ammonium deposition. The 3 epiphytic species also showed strong relationships between tissue N concentration and total N deposition in rainfall but a poor correlation with total N ion concentration in rainfall. This study shows that epiphytic bryophytes utilise stemflow N and thus increase their risk from inputs of total N deposition compared to terricolous species at the same site.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.envpol.2007.11.031
Programmes: CEH Programmes pre-2009 publications > Biogeochemistry > BG02 Recovery from acidification and eutrophication > BG02.1 Linking Nitrogen Deposition and Biodiversity
CEH Sections: Billett
ISSN: 0269-7491$
Additional Keywords: Epiphytic bryophytes, N deposition, Rainfall, Stemflow, Tissue N concentration
NORA Subject Terms: Ecology and Environment
Date made live: 12 Sep 2008 08:29
URI: http://nora.nerc.ac.uk/id/eprint/3952

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