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V

Vogt E., Dragosits U., Braban C.F., Theobald M.R., Dore A.J., van Dijk N., Tang Y.S., McDonald C., Murray S., Rees R.M. et al.. 2013. Heterogeneity of atmospheric ammonia at the landscape scale and consequences for environmental impact assessment. Environmental Pollution. 179:120-131.

Vogt E., Braban C.F., Dragosits U., Theobald M.R., Billett M.F., Dore A.J., Tang Y.S., van Dijk N., Rees R.M., McDonald C. et al.. 2013. Estimation of nitrogen budgets for contrasting catchments at the landscape scale. Biogeosciences. 10(1):119-133.

S

Sutton M.A., Sheppard L.J., Fowler D.. 2009. Potential for the Further Development and Application of Critical Levels to Assess the Environmental Impacts of Ammonia. Atmospheric Ammonia. :41-48.

Skinner R., Ineson P., Hicks W.K, Jones H.E, Sleep D., Leith I.D, Sheppard L.J. 2005. Correlating the spatial distribution of atmospheric ammonia with δ15n values at an ammonia release site. Water, Air and Soil Pollution: Focus. 4(6):219-228.

Sheppard L.J., Leith I.D., Crossley A., van Dijk N., Cape J.N., Fowler D., Sutton M.A.. 2009. Long-Term Cumulative Exposure Exacerbates the Effects of Atmospheric Ammonia on an Ombrotrophic Bog: Implications for Critical Levels. Atmospheric Ammonia. :49-58.

Sheppard L.J., Leith I.D., Leeson S., Mizunuma T., de Bakker R., Elustondo D., Garcia-Gomez H.. 2013. PK additions modify the effects of N dose and form on species composition, species litter chemistry and peat chemistry in a Scottish peatland. Biogeochemistry. 116(1-3):39-53.

Sheppard L.J., Leith I.D., Mizunuma T., Leeson S., Kivimaki S., Cape J.N, van Dijk N., Leaver D., Sutton M.A., Fowler D. et al.. 2014. Inertia in an ombrotrophic bog ecosystem in response to 9 years' realistic perturbation by wet deposition of nitrogen, separated by form. Global Change Biology. 20(2):566-580.

Sheppard L.J, Leith I.D, Leeson S.R, van Dijk N., Field C., Levy P.. 2013. Fate of N in a peatland, Whim bog: immobilisation in the vegetation and peat, leakage into pore water and losses as N2O depend on the form of N. Biogeosciences. 10(1):149-160.

P

Phoenix G.K., Emmett B.A., Britton A.J., Caporn S.J.M., Dise N.B., Helliwell R., Jones L., Leake J.R., Leith I.D., Sheppard L.J. et al.. 2012. Impacts of atmospheric nitrogen deposition: responses of multiple plant and soil parameters across contrasting ecosystems in long-term field experiments. Global Change Biology. 18(4):1197-1215.

Payne R.J., Jassey V.E.J., Leith I.D., Sheppard L.J., Dise N.B., Gilbert D.. 2013. Ammonia exposure promotes algal biomass in an ombrotrophic peatland. Soil Biology & Biochemistry. 57:936-938.

M

Munzi S., Cruz C., Branquinho C., Pinho P., Leith I.D, Sheppard L.J. 2014. Can ammonia tolerance amongst lichen functional groups be explained by physiological responses? Environmental Pollution. 187:206-209.

Millett J., Leith I.D., Sheppard L.J., Newton J.. 2012. Response of Sphagnum papillosum and Drosera rotundifolia to Reduced and Oxidized Wet Nitrogen Deposition. Folia Geobotanica. 47(2)

Manninen S., Woods C., Leith I.D, Sheppard L.J. 2011. Physiological and morphological effects of long-term ammonium or nitrate deposition on the green and red (shade and open grown) Sphagnum capillifolium. Environmental and Experimental Botany. 72(2):140-148.

L

Limpens J., Granath G., Gunnarsson U., Aerts R., Bayley S., Bragazza L., Bubier J., Buttler A., van den Berg L.JL, Francez A.J et al.. 2011. Climatic modifiers of the response to nitrogen deposition in peat-forming Sphagnum mosses: a meta-analysis. New Phytologist. 191(2):496-507.

Limpens J., Granath G., Aerts R., Heijmans M.MPD, Sheppard L.J, Bragazza L., Williams B.L, Rydin H., Bubier J., Moore T. et al.. 2012. Glasshouse vs field experiments: do they yield ecologically similar results for assessing N impacts on peat mosses? New Phytologist. 195(2):404-418.

Levy PE, Burden A, Cooper MDA, Dinsmore KJ, Drewer J, Evans C, Fowler D, Gaiawyn J, Gray A, Jones SK et al.. 2012. Methane emissions from soils: synthesis and analysis of a large UK data set. Global Change Biology. 18(5):1657-1669.

Levy P.E, Gray A., Leeson S.R, Gaiawyn J., Kelly M.PC, Cooper M.DA, Dinsmore K.J, Jones S.K, Sheppard L.J. 2011. Quantification of uncertainty in trace gas fluxes measured by the static chamber method. European Journal of Soil Science. 62(6):811-821.

Leith I.D., van Dijk N., Pitcairn C.E.R., Sheppard L.J., Sutton M.A.. 2009. Standardised Grasses as Biomonitors of Ammonia Pollution Around Agricultural Point Sources. Atmospheric Ammonia. :269-279.

K

Kivimaeki SK, Sheppard LJ, Leith ID, Grace J. 2013. Long-term enhanced nitrogen deposition increases ecosystem respiration and carbon loss from a Sphagnum bog in the Scottish Borders. Environmental and Experimental Botany. 90:53-61.

G

Gray A, Levy PE, Cooper MDA, Jones T, Gaiawyn J, Leeson SR, Ward SE, Dinsmore KJ, Drewer J, Sheppard LJ et al.. 2013. Methane indicator values for peatlands: a comparison of species and functional groups. Global Change Biology. 19(4):1141-1150.

Gidman E, Goodacre R, Emmett B, Sheppard LJ, Leith ID, Gwynn-Jones D. 2005. Applying metabolic fingerprinting to ecology: The use of Fourier-transform infrared spectroscopy for the rapid screening of plant responses to N deposition. Water, Air and Soil Pollution: Focus. 4(6):251-258.

F

Field C.D., Sheppard L.J., Caporn S.J.M., Dise N.B.. 2013. The ability of contrasting ericaceous ecosystems to buffer nitrogen leaching. Mires and Peat. 11:Article5.

E

Evans CD, Goodale CL, Caporn SJM, Dise NB, Emmett BA, Fernandez IJ, Field CD, Findlay SEG, Lovett GM, Meesenburg H et al.. 2008. Does elevated nitrogen deposition or ecosystem recovery from acidification drive increased dissolved organic carbon loss from upland soil? A review of evidence from field nitrogen addition experiments Biogeochemistry. 91(1):13-35.

C

Carter M.S, Larsen K.S, Emmett B., Estiarte M., Field C., Leith I.D, Lund M., Meijide A., Mills R.TE, Niinemets U et al.. 2012. Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands - responses to climatic and environmental changes. Biogeosciences. 9(10):3739-3755.

Carfrae J.A, Sheppard L.J, Raven J.A, Leith I.D, Stein W., Crossley A., Theobald M.. 2005. Early effects of atmospheric ammonia deposition on Calluna vulgaris (L.) hull growing on an ombrotrophic peat bog. Water, Air and Soil Pollution: Focus. 4(6):229-239.

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