@booklet {1418,
	year = {Submitted},
	keywords = {af(st)y, air-pollution, aot40, critical flux versus exposure, exposure indexes, gas-exchange, lettuce, plants, protect vegetation, responses, spring wheat, standard, stomatal conductance, white clover},
	author = {Goumenaki, E. and Fernandez, I. G. and Papanikolaou, A. and Papadopoulou, D. and Askianakis, C. and Kouvarakis, G. and Barnes, J.}
}
@article {1559,
	title = {A review and application of the evidence for nitrogen impacts on ecosystem services.},
	volume = {7},
	year = {2014},
	pages = {76-88},
	author = {Jones, L. and Provins, A. and Harper-Simmonds, L. and Holland, M. and Mills, G. and Hayes, F. and Emmett, B.A. and Hall, J. and Sheppard, L.G. and Smith, R. and Sutton, M. and Hicks, K. and Ashmore, M. and Haines-Young, R.}
}
@article {1584,
	title = {Using the Ecosystems Services Approach to value air quality.},
	year = {2014},
	institution = {DEFRA},
	author = {Jones, M.L.M. and Provins, A. and Harper-Simmonds, L. and Holland, M. and Mills, G. and Hayes, F. and Emmett, B.A. and Hall, J. and Sheppard, L.J. and Smith, R. and Sutton, M. and Hicks, K. and Ashmore, M. and Haines-Young, R.}
}
@article {1440,
	title = {Coastal eutrophication as a driver of salt marsh loss},
	volume = {490},
	year = {2012},
	pages = {388-392},
	author = {Deegan, L.A. and Johnson, D.S. and Warren, R.S. and Peterson, B.P. and Fleeger, J.W. and Fagherazzi, S. and Wollheim, W.M.}
}
@article {1528,
	title = {Effects of ozone on species composition in an upland grassland.},
	volume = {168},
	year = {2012},
	pages = {1137-1146},
	author = {Wedlich, K.V. and Rintoul, N. and Peacock, S. and Cape, N.J. and Coyle, M. and Toet, S. and Barnes, J. and Ashmore, M.}
}
@article {1325,
	title = {Impacts of atmospheric nitrogen deposition: responses of multiple plant and soil parameters across contrasting ecosystems in long-term field experiments},
	volume = {18},
	year = {2012},
	pages = {1197-1215},
	author = {Phoenix, G.K. and Emmett, B.A. and Britton, A.J. and Caporn, S.J.M. and Dise, N.B. and Helliwell, R. and Jones, M.L.M. and Leake, J.R. and Leith, I.D. and Sheppard, L.J. and Sowerby, A. and Pilkington, M.G. and Rowe, E.C. and Ashmore MR and Power, S.A.}
}
@article {1544,
	title = {Nitrogen deposition enhances moss growth but leads to an overall decline in habitat condition of mountain moss-sedge heath.},
	volume = {18},
	year = {2012},
	pages = {290-300},
	author = {Armitage, H.F. and Britton, A.J. and Van der Wal, R. and Pearce, I.S.K. and Thompson, D.B.A. and Woodin, S.J.}
}
@article {1299,
	title = {Collation of evidence of nitrogen impacts on vegetation in relation to UK biodiversity objectives},
	year = {2011},
	institution = {JNCC},
	issn = {447},
	author = {Stevens, C.J. and Smart, S.M. and Henrys, P. and Maskell, L.C. and Walker, K.J. and Preston, C.D. and Crowe, A. and Rowe, E. and Gowing, D.J. and Emmett, B.A.}
}
@article {1522,
	title = {Elevated ozone reduces methane emissions from peatland mesocosms.},
	volume = {17},
	year = {2011},
	pages = {288-296},
	author = {Toet, S. and Ineson, P. and Peacock, S. and Ashmore, M.}
}
@article {1310,
	title = { Impacts of Short Rotation Forestry on Soil Sustainability},
	number = {Forest Research Monograph, 2},
	year = {2011},
	pages = {212pp},
	institution = {Forest Research},
	abstract = {<p>\&nbsp;</p><p>\&nbsp;</p>},
	isbn = {978-0-85538-827-0},
	author = {Vanguelova, E. and Pitman, R.}
}
@article {1578,
	title = {The legacy of enhanced N and S deposition as revealed by the combined analysis of δ13C, δ18O and δ15N in tree rings.},
	volume = {17},
	year = {2011},
	pages = {1946-1962},
	author = {Guerrieri, R. and Mencuccini, M. and Sheppard, L.J. and Saurer, M. and Perks, M.P. and Levy, P. and Sutton, M.A. and Borghetti, M. and Grace, J.}
}
@article {1334,
	title = {The legacy of enhanced N and S deposition as revealed by thecombined analysis of delta 13C, delta 18O and delta 15N in treerings},
	volume = {17},
	year = {2011},
	pages = {1946{\textendash}1962},
	author = {Guerrieri, R. and Mencuccini, M. and Sheppard, L.J. and Saurer, M. and Perks,M.P. and Levy, P. and Sutton, M.A. and Borghetti, M. and Grace, J.}
}
@article {1488,
	title = {New stomatal flux-based critical levels for ozone effects on vegetation.},
	volume = {45},
	year = {2011},
	pages = {5064-5068},
	author = {Mills, G. and Pleijel, H. and Braun, S. and Buker, P. and Bermejo, V. and Calvo, E. and Danielsson, H. and Emberson, L. and Gonzalez Fernandez, I. and Grunhage, L. and Harmens, H. and Hayes, F. and Karlsson, P.E. and Simpson, D.}
}
@article {1556,
	title = {Nitrogen concentrations in mosses indicate the spatial distribution of atmospheric nitrogen deposition in Europe.},
	volume = {159},
	year = {2011},
	pages = {2852-2860},
	author = {Harmens, H. and Norris, D.A. and Cooper, D.M. and Mills, G. and Steinnes, E. and Kubin, E. and Thoni, L. and Aboal, J.R. and Alber, R. and Carballeira, A. and Coskun, M. and De Temmerman, L. and Frolova, M. and Frontasyeva, M. and Gonzales-Miqueo, L. and Jeran, Z. and Leblond, S. and Liiv, S. and Mankovska, B. and Pesch, R. and Poikolainen, J. and Ruhling, A. and Santamaria, J.M. and Simoneie, P. and Schroder, W. and Suchara, I. and Yurukova, L. and Zechmeister, H.G.}
}
@article {472,
	title = {Review and revision of empirical critical loads and dose-response relationships},
	year = {2011},
	institution = {Coordination Centre for Effects},
	address = {Noordwijkerhout},
	isbn = {978-90-6960-251-6},
	author = {Bobbink, R. and Braun, S. and Nordin, A. and Power, S. and Schutz, K. and Strengbom, J. and Weijters, M. and Tomassen, H.},
	editor = {Bobbink, R. and Hettelingh, J.P.}
}
@article {1342,
	title = {UK Status Report July 2011: Update to empirical critical loads of nitrogen},
	year = {2011},
	pages = {55pp},
	author = {Hall, R.J. and Emmett, B. and Garbutt, A. and Jones, L and Rowe, E. and Sheppard, L and Vanguelova, E. and Pitman, R. and Britton, A. and Hester, A. and Ashmore, M. and Power, S. and Caporn, S.}
}
@article {1297,
	title = {Changes in species richness and composition in European acidic grasslands over the past 70 years: the contribution of cumulative atmospheric nitrogen deposition},
	volume = {16},
	year = {2010},
	pages = {344-357},
	author = {Dupre, C. and Stevens, C.J. and Ranke, T. and Bleeker, A. and Peppler-Lisbach, C. and Gowing, D.J.G. and Dise, N.B. and Dorland, E. and Bobbink, R. and Diekmann, M.}
}
@article {1575,
	title = {Chemical fluxes in time through forest ecosystems in the UK {\textendash} Soil response to pollution recovery.},
	volume = {158},
	year = {2010},
	pages = {1857-1869},
	author = {Vanguelova, E.I. and Benham, S. and Pitman, R. and Moffat, A.J. and Broadmeadow, M. and Nisbet, T. and Durrant, D. and Barsoum, N. and Wilkinson, M. and Bochereau, F. and Hutchings, T. and Broadmeadow, S. and Crow, P. and Taylor, P. and Houston, T.D.}
}
@article {1670,
	title = {The Economics of Ecosystems and Biodiversity Ecological and Economic Foundations},
	year = {2010},
	institution = {Earthscan},
	address = {London and Washington},
	url = {http://www.teebweb.org/our-publications/teeb-study-reports/ecological-and-economic-foundations/},
	author = {TEEB, The Economics of Ecosystems and Biodiversity},
	editor = {Pushpam, Kumar}
}
@article {1566,
	title = {First Europe-wide correlation analysis identifying factors best explaining the total nitrogen concentration in mosses.},
	volume = {44},
	year = {2010},
	pages = {3485-3491},
	author = {Schroder, W. and Holy, M. and Pesch, R. and Harmens, H. and Fagerli, H. and Alber, R. and Coskun, M. and De Temmerman, L. and Frolova, M. and Gonzalez-Miqueo, L. and Jeran, Z. and Kubin, E. and Leblond, S. and Liiv, S. and Mankovska, B. and Piispanen, J. and Santamaria, J.M. and Simoneie, P. and Suchara, I. and Yurokova, L. and Thoni, L. and Zechmeister, H.G.}
}
@article {1696,
	title = {Global assessment of nitrogen deposition effects on terrestrial plant diversity: a synthesis},
	volume = {20},
	year = {2010},
	pages = {30-59},
	keywords = {arctic polar semidesert, arctic-alpine ecosystems, atmospheric deposition, boreal ecosystems, critical loads, diversity, ecoregions, long-term, mediterranean ecosystems, n-deposition, nitrogen deposition, nutrient limitation, racomitrium-lanuginosum, simulated environmental-change, southern california, species richness, temperature ecosystems, terrestrial ecosystems, tropical ecosystems, western united-states},
	author = {Bobbink, R. and Hicks, K. and Galloway, J. and Spranger, T. and Alkemade, R. and Ashmore, M. and Bustamante, M. and Cinderby, S. and Davidson, E. and Dentener, F. and Emmett, B. and Erisman, J. W. and Fenn, M. and Gilliam, F. and Nordin, A. and Pardo, L. and de Vries, W.}
}
@article {1554,
	title = {Relationships between lichen community composition and concentrations of NO2 and NH3.},
	volume = {158},
	year = {2010},
	pages = {2553-2560},
	author = {Gadson, S.R. and Dagley, J.R. and Wolseley, P.A. and Power, S.A.}
}
@article {1105,
	title = {Changes in species richness and composition in European acidic grasslands over the past 70 years: the contribution of cumulative atmospheric nitrogen deposition. },
	volume = {161},
	year = {2009},
	pages = {344-357},
	author = {Dupre, C. and Stevens, C.J. and Ranke, T. and Bleeker, A. and Peppler-Lisbach, C, and Gowing, D.J. and Dise, N.B. and Dorland, E. and Bobbink, R. and Diekmann, M.}
}
@article {1345,
	title = {The effects of low levels of nitrogen deposition and grazing on dune grassland},
	volume = {407},
	year = {2009},
	pages = {1391-1404},
	author = {Plassmann, K. and Edwards-Jones, G. and Jones, M.L.M.}
}
@article {1469,
	title = {Light limitation of nutrient-poor lake ecosystems.},
	year = {2009},
	pages = {506-509},
	author = {Karlsson, J. and Bystrom, P. and Ask, J. and Ask, P. and Persson, L. and Jansson, M.}
}
@article {86,
	title = {Are enchytraeid worms (Oligochaeta) sensitive indicators of Ammonia-N impacts on an Ombrotrophic Bog?},
	volume = {44},
	year = {2008},
	pages = {101-108},
	author = {Prendergast, M. T. and Cole, L. and Standen, V. and Rees, R. and Parker, J. and Leith, I. and Sheppard, L.J.}
}
@article {1462,
	title = {Base cation depletion, eutrophication and acidification of species-rich grasslands in response to long-term simulated nitrogen deposition.},
	volume = {155},
	year = {2008},
	pages = {336-349},
	author = {Horswill, P. and O{\textquoteright}Sullivan, O. and Phoenix, G.K. and Lee, J.A. and Leake, J.R.}
}
@article {1421,
	title = {Bryophyte physiological responses to, and recovery from, long-term nitrogen deposition and phosphorus fertilisation in acidic grassland.},
	volume = {180},
	year = {2008},
	pages = {864-874},
	author = {Arroniz-Crespo, M. and Leake, J.R. and Horton, P. and Phoenix, G.K.}
}
@article {1315,
	title = {The effect of nitrogen additions on oak foliage and herbivore communities at sites with high and low atmospheric pollution},
	volume = {151},
	year = {2008},
	edition = {434-442},
	author = {Eatough Jones, M. and Paine, T.D. and Fenn, M.E.}
}
@article {1357,
	title = {Interpreting nitrogen pollution thresholds for sensitive habitats: The importance of concentration versus dose},
	volume = {152},
	year = {2008},
	pages = {253-256},
	author = {Pearce, I. and Van der Wal, R.}
}
@article {1703,
	title = {Reduced nitrogen has a greater effect than oxidised nitrogen on dry heathland vegetation},
	volume = {154},
	year = {2008},
	pages = {359-369},
	keywords = {acidification, amino acids, ammonium toxicity, competition, decline, deposition, grass encroachment, herbaceous species, mesocosins, n enrichiuent, netherlands, nh4+/no3- ratios, nitrate, pinus-nigra, soil, vascular plants},
	author = {Van den Berg, L. J. L. and Peters, C. J. H. and Ashmore, M. R. and Roelofs, J. G. M.}
}
@article {1317,
	title = {Windthrow damage in Picea abies is associated with physical and chemical stem wood properties},
	volume = {22},
	year = {2008},
	pages = {463-473},
	author = {Meyer, F.D. and Paulsen, J. and Korner, C.}
}
@article {1452,
	title = {Derivation of ozone flux-yield relationships for lettuce: a key horticultural crop.},
	volume = {146},
	year = {2007},
	pages = {699-706},
	author = {Goumenaki, E. and Fernandez, I. G. and Papanikolaou, A. and Papadopoulou, D. and Askianakis, C. and Kouvarakis, G. and Barnes, J.}
}
@article {1273,
	title = {Diversity and sensitivity of epiphytes to oxides of nitrogen in London},
	volume = {146},
	year = {2007},
	pages = {299-310},
	abstract = {This study investigated the distribution and diversity of epiphytes in London in relation to NO(x) using fine-scale atmospheric dispersion modelling. The survey recorded over 3000 epiphytes from 334 trees (Fraxinus excelsior) representing 74 lichen, 14 moss, 7 fungal and 3 algal species. There was a significant inverse relationship between diversity and NO(x). Diversity declined where NO(x) exceeded 70 microg m(-3) and NO2 exceeded 40 microg m(-3), suggesting a phytotoxic effect. However, there was a significant positive relationship between NO(x) and lichen abundance due to the ubiquitous distribution of pollution tolerant species, mainly associated with eutrophication. A scale of lichen sensitivity to NO(x) has been derived.},
	author = {Davies, L. and Bates, J.W. and Bell, J.N.B. and James, P.W. and Purvis, O.W.}
}
@article {1117,
	title = {Effects of herbicide spray drift and fertiliser over-spread on selected species of woodland ground flora: Comparison between short-term and long-term impact assessments and field surveys.},
	volume = {44},
	year = {2007},
	pages = {374-384},
	author = {Gove, B. and Power, S. and Buckley, G.P. and Ghazoul, J.}
}
@article {1277,
	title = {Diagnostic indicators of elevated nitrogen deposition},
	volume = {144},
	year = {2006},
	author = {Pitcairn, C.E.R. and Fowler D. and Leith, I.D. and Sheppard, L.J. and Tang, Y.S. and Sutton, M.A. and Famulari D.}
}
@article {1502,
	title = {Differential ozone sensitivity in an old and a modern Swedish wheat cultivar {\textendash} grain yield and quality, leaf chlorophyll and stomatal conductance.},
	volume = {56},
	year = {2006},
	pages = {63-71},
	author = {Pleijel, H. and Eriksen, A.B. and Danielsson, H. and Bondesson, N. and Sellden, G.}
}
@article {1521,
	title = {The effects of tropospheric ozone on the species dynamics of calcareous grassland.},
	volume = {144},
	year = {2006},
	pages = {500-509},
	author = {Thwaites, R.H. and Asmore, M.R. and Morton, A.J. and Pakeman, R.J.}
}
@article {1461,
	title = {Elevated CO2 and O3 alter soil nitrogen transformations beneath trembling aspen, paper birch, and sugar maple.},
	volume = {9},
	year = {2006},
	pages = {1354-1363},
	author = {Holmes, W.E. and Zak, D.R. and Pregitzer, K.S. and King, J.S.}
}
@article {1482,
	title = {Extraordinary drought of 2003 overrules ozone impact on adult beech trees (Fagus sylvatica).},
	volume = {20},
	year = {2006},
	pages = {539-548},
	author = {Low, M. and Herbinger, K. and Nunn, A.J. and Haberle, K.H. and Leuchner, M. and Heerdt, C. and Werner, H. and Wipfler, P. and Pretzsch, H. and Tausz, M. and Matyssek, R.}
}
@article {1610,
	title = {Biomonitoring methods for assessing the impacts of nitrogen pollution: refinement and testing},
	year = {2005},
	institution = {JNCC},
	issn = {386},
	author = {Leith, I. and van Dijk, N. and Pitcairn, C.E.R. and Wolseley, P.A. and Whitfield, C.P. and Sutton, M.A.}
}
@article {1524,
	title = {Impact of rising tropospheric ozone on potato: effects on photosynthesis, growth, productivity and yield quality.},
	volume = {28},
	year = {2005},
	pages = {982-996},
	author = {Vandermeiren, K. and Black, C. and Pleijel, H. and De Temmerman, L.}
}
@article {1355,
	title = {Impacts of grazing on montane heath vegetation in Wales and implications for the restoration of montane areas},
	volume = {125},
	year = {2005},
	pages = {515-524},
	author = {Britton, A.J. and Pearce, I.S.K.P and Jones, B.}
}
@article {1360,
	title = {Mosses and the struggle for light in a nitrogen-polluted world},
	volume = {142 },
	year = {2005},
	pages = {159{\textendash}168.},
	author = {Van der Wal, R. and Pearce, I.S.K. and Brooker, R.W.}
}
@inbook {1278,
	title = {Refining and testing the Ellenberg Index  biomonitoring method at the intensive sites},
	year = {2005},
	pages = {230},
	publisher = {JNCC},
	organization = {JNCC},
	edition = {Biomonitoring methods for assessing the impacts of nitrogen pollution: refinement and testing},
	chapter = {4},
	author = {Pitcairn, C.E.R. and Leith, I.D. and van Dijk N. and Sutton, M.A.}
}
@article {1710,
	title = {Simple Method for Fractionation of Parmelia sulcata Lichen Thalli},
	volume = {52},
	year = {2005},
	pages = {271-274},
	author = {Maslov, A.I. and Pavlova, E.A.}
}
@article {253,
	title = {Bioindicator and biomonitoring methods for assessing the effects of atmospheric nitrogen on statutory nature conservation sites},
	year = {2004},
	address = {Peterborough},
	author = {Sutton, M.A. and Pitcairn, C.E.R. and Leith, I.D. and van Dijk, N. and Tang, Y.S. and Skiba, U. and Smart, S. and Mitchell, R. and Wolseley, P. and James, P. and Purvis, W. and Fowler, D.},
	editor = {Sutton, M.A. and Pitcairn, C.E.R. and Whitfield, C.P.}
}
@article {1119,
	title = {Differential effects of nitrate and ammonium on three fen bryophyte species in relation to pollutant nitrogen input.},
	volume = {164},
	year = {2004},
	pages = {451-458},
	author = {Paulissen, M.P.C.P. and van der Ven, P.J.M. and Dees, A.J. and Bobbink, R.}
}
@article {1429,
	title = {The Ecological Effects of Diffuse Air Pollution from Road Transport.},
	number = {580},
	year = {2004},
	institution = {English Nature},
	address = {Peterborough},
	author = {Bignal, K. and Ashmore, M. and Power, S.}
}
@article {1527,
	title = {The restoration and re-creation of species-rich lowland grassland on land formerly managed for intensive agriculture in the UK.},
	volume = {119},
	year = {2004},
	pages = {1-18},
	author = {Walker, K.J. and Stevens, P.A. and Stevens, D.A. and Mountford, J.O. and Manchester, S.J. and Pywell, R.F.}
}
@article {1506,
	title = {Silver birch and climate change: variable growth and carbon allocation responses to elevated concentrations of carbon dioxide and ozone.},
	volume = {24},
	year = {2004},
	pages = {1227-1237},
	author = {Riikonen, J. and Lindsberg, M.M. and Holopainen, T. and Oksanen, E. and Lappi, J. and Peltonen, P. and Vapaavuori, E.}
}
@article {1713,
	title = {Changing landscapes, habitats and vegetation diversity across Great Britain},
	volume = {67},
	year = {2003},
	pages = {267-281},
	author = {Haines-Young, R. and Barr, C.J. and Firbank, L.G. and Furse, M. and Howard, D.C. and McGowan, G. and Petit, S. and Smart, S.M. and Watkins, J.W.}
}
@article {1326,
	title = {Effects of enhanced nitrogen deposition and phosphorus limitation on nitrogen budgets of semi-natural grasslands},
	volume = {9},
	year = {2003},
	pages = {1309-1321},
	author = {Phoenix, G.K. and Booth, R.E. and Leake, J.R. and Read, D.J. and Grime, J.P. and Lee, J.A.}
}
@article {1358,
	title = {Interplay between nitrogen deposition and grazing causes habitat degradation},
	volume = {6},
	year = {2003},
	pages = {141-146},
	author = {Van der Wal, R. and Pearce, I. and Brooker, R. and Scott, D. and Welch, D. and Woodin, S.}
}
@article {1359,
	title = {Physiological and growth responses of the montane bryophyte Racomitrium lanuginosum to atmospheric nitrogen deposition},
	volume = {160 },
	year = {2003},
	pages = {145{\textendash}155},
	author = {Pearce, I.S.K. and Woodin, S.J. and Van der Wal, R.}
}
@article {1960,
	title = {Effects of manganese on the viability of vegetative diaspores of the epiphytic lichen Hypogymnia physodes},
	year = {2002},
	pages = {127-142},
	author = {Hauck, M and Paul, A and Mulack, C and Fritz, E and Runge, M}
}
@article {709,
	title = {Effects of nitrogen deposition on growth and survival of montane Racomitrium lanuginosum heath},
	volume = {104},
	year = {2002},
	pages = {83-89},
	author = {Pearce, I.F.K. and Van der Wal, R.}
}
@article {1321,
	title = {Growth, nitrogen uptake, and resource allocation in the two tripartite lichens Nephroma arcticum and Peltigera aphthosa during nitrogen stress},
	volume = {153},
	year = {2002},
	pages = {307-315},
	author = {Dahlmann, L. and N{\"a}sholm, T. and Palmqvist, K.}
}
@book {763,
	title = {Growth of Norway spruce (Picea abies) in relation to the AOT40 index.},
	year = {2002},
	type = {Background paper presented at the UNECE Workshop Establishing Ozone Critical Levels II, Goteborg November 2002},
	author = {Skarby, L. and Ottoson, S. and Karlsson, P.E. and Wallin, G. and Sellden, G. and Medin, E. and Pleijel, H.}
}
@article {2023,
	title = {Heavy metal (Pb, Zn, Cd, Fe and Cu) contents of plant foliage near the Anvil Range lead/zinc mine, Faro, Yukon Territory},
	year = {2002},
	pages = {273-279},
	author = {Pugh, R. E and Dick, D. G and Fredeen, A. L}
}
@article {726,
	title = {Long-term implications of industrial pollution stress on lipids composition in Scots pine (Pinus sylvestris L.) roots},
	volume = {24(3)},
	year = {2002},
	pages = {249-255},
	author = {Pukacki, P.M. and Kaminska-Rozak, E.}
}
@article {1107,
	title = {New Atlas of the British and Irish Flora},
	year = {2002},
	author = {Preston, C.D. and Pearman, D.A. and Dines, T.D. (Eds)}
}
@article {1336,
	title = {Soil core method for direct simultaneous determination of N-2 and N2O emissions from forest soils},
	volume = {240},
	year = {2002},
	pages = {105-116},
	author = {Butterbach-Bahl, K. and Willibald, G. and Papen, H.}
}
@article {1672,
	title = {Whole ecosystem N manipulation: An updated review},
	number = {331},
	year = {2002},
	institution = {JNCC},
	author = {Cunha, A. and Power, S.A. and Ashmore, M.R. and Green, P.R.S. and Haworth, B.J. and Bobbink, R.}
}
@article {659,
	title = {Comparison of the effects of dry deposited N as NH3 with wet deposited N as NH4Cl on acid moorland vegetation.},
	year = {2001},
	author = {Leith, I.D. and Sheppard, L.J. and Pitcairn, C.E.R. and Cape, J.N and Hill, P.W. and Kennedy, V.H. and Tang, Y.S. and Smith, R.I. and Fowler D.}
}
@article {577,
	title = {Deposition of acidifying and eutrophying air pollutants in Scotland: Mapping critical loads, critical levels and exceedances},
	year = {2001},
	institution = {Centre for Ecology and Hydrology},
	author = {Fowler, D. and Dragosits, U. and Pitcairn, C.E.R. and Sutton, M.A. and Hall, J. and Roy, D.B. and Weidemann, A.}
}
@article {1478,
	title = {Effects of Simulated Sulphuric Acid Deposition On Calluna Vulgaris/Peat Microcosms and Associated Soil Solutions.},
	volume = {17},
	year = {2001},
	pages = {293-314},
	author = {Parveen, Z. and Smart, R. and White, C. and Gammack, S. and Deacon, C. and Cresser, M.}
}
@article {123,
	title = {Impact Assessment of ionising radiation on wildlife},
	year = {2001},
	institution = {Environment Agency},
	address = {Bristol},
	url = {http://publications.environment-agency.gov.uk/pdf/SR-DPUB-128-e-e.pdf },
	author = {Copplestone, D and Bielby, S and Jones, SR and Paton, D and Daniel, P and Gize, I}
}
@article {696,
	title = {Transboundary Air Pollution: Acidification, Eutrophication and Ground-Level Ozone in the UK - NEGTAP},
	year = {2001},
	edition = {ISBN 1 870393 61 9},
	url = {http://www.pollutantdeposition.ceh.ac.uk/reports},
	author = {NEGTAP (National Expert Group on Transboundary Air Pollution)}
}
@book {597,
	title = {Accounting for nature: assessing habitats in the UK countryside},
	series = {Accounting for nature: assessing habitats in the UK countryside},
	year = {2000},
	publisher = {DETR},
	organization = {DETR},
	address = {London},
	author = {Haines-Young, R.H. and Barr, C.J. and Black, H.I.G. and Briggs, D.J. and Bunce, R.G.H. and Clarke, R.T. and Cooper, A. and Dawson, F.H. and Firbanks, L.G. and Fuller, R.M. and Furse, M.T. and Gillespie, M.K. and Hill, R. and Hornung, M. and Howard, D.C. and McCann, T. and Morecroft, M.D. and Petit, S. and Sier, A.R.J. and Smart, S.M. and Stott, A.P. and Watkins, J.W.}
}
@article {1536,
	title = {Accounting for nature: assessing habitats in the UK countryside.},
	year = {2000},
	institution = {DETR},
	address = {London},
	isbn = {1 85112460 8},
	author = {Haines-Young, R.H. and Barr, C.J. and Black, H.I.J and Briggs, D.J. and Bunce, R.G.H. and Clarke, R.T. and Cooper, A. and Dawson, F.H. and Firbank, L.G. and Fuller, R.M. and Furse, M.T. and Gillespie, M.K. and Hill, R. and Hornung, M. and Howard, D.C. and McCann, T. and Morecroft, M.D. and Petit, S. and Sier, A.R.J. and Smart, S.M. and Smith, G.M. and Stott, A.P. and Stuart, R.C. and Watkins, J.W.}
}
@article {1929,
	title = {Airborne trace metal contamination of wetland sediments at Iniana Dunes National Lakeshore},
	year = {2000},
	pages = {231-260},
	author = {Perkins, S. M and Filippelli, G. M and Souch, C. J}
}
@article {1137,
	title = {Assessing the chronic effects of atmospheric tetrachloroethylene (PER) on plants. Note 48},
	year = {2000},
	publisher = {Wageningen},
	address = {Netherlands},
	author = {Franzaring, J. and Van der Eerden, L.J.M. and Van Dijk, C.J. and Helsper J.P.F.G. and Pikaar P.J.J. and Nijhuis E.H. and Tonneijck A.E.G.}
}
@article {1701,
	title = {Biodiversity - Global biodiversity scenarios for the year 2100},
	volume = {287},
	year = {2000},
	pages = {1770-1774},
	keywords = {co2, fresh-water, future, limitation, threats},
	author = {Sala, O. E. and Chapin, F. S. and Armesto, J. J. and Berlow, E. and Bloomfield, J. and Dirzo, R. and Huber-Sanwald, E. and Huenneke, L. F. and Jackson, R. B. and Kinzig, A. and Leemans, R. and Lodge, D. M. and Mooney, H. A. and Oesterheld, M. and Poff, N. L. and Sykes, M. T. and Walker, B. H. and Walker, M. and Wall, D. H.}
}
@article {518,
	title = {Comparison of techniques to increase Calluna vulgaris cover on heathland invaded by grasses in Breckland, south east England. },
	volume = {95},
	year = {2000},
	pages = {227-232},
	author = {Britton, A.J. and Marrs, R.H. and Carey, P.D. and Pakeman, R.J.}
}
@article {244,
	title = {Plants as Biomonitors of Atmospheric Pollution: A review of their Potential Use in Integrated Pollution Control},
	year = {2000},
	pages = {p318},
	author = {Pakeman, R. and Osborn, D. and Hankard, P.}
}
@article {827,
	title = {Responses of spruce seedlings (Picea abies) to exhaust gas under laboratory conditions - I - plant-insect interactions. },
	volume = {107},
	year = {2000},
	pages = {89-98},
	author = {Viskari, E.L. and Surakka, J. and Pasanen, P. and Mirme, Am. and Ruuskanen, J. and Holopainen, J. K.}
}
@article {790,
	title = {Severe photobiont injuries of lichens strongly associated with air pollution},
	volume = {147},
	year = {2000},
	pages = {579-590},
	author = {Tarhanen, S. and Poikolinen, J. and Holopainen, T. and Oskanen, J.}
}
@article {245,
	title = {Traffic exposure increases natural 15N and heavy metal concentrations in mosses},
	journal = {New Phytologist},
	volume = {147},
	year = {2000},
	pages = {317-326},
	author = {Pearson, J. and Wells, D.M. and Seller, K.J. and Bennett, A. and Soares, A. and Woodall, J. and Ingrouille, M.J.}
}
@proceedings {128,
	title = {Assessment programme to fulfil the commitments of the Nuclear Safety Commission - Proceedings of the Second International Symposium on Ionising Radiation and the Environment},
	year = {1999},
	month = {05/1999},
	address = {Ottawa},
	author = {Thompson P.M.}
}
@article {648,
	title = {Changes in distribution and abundance of submerged macrophytes in the Inner Bay at Long Point, Lake Erie: Implications for foraging waterfowl},
	volume = {25},
	year = {1999},
	pages = {783-798},
	author = {Knapton, R.W. and Petrie, S.A.}
}
@article {1908,
	title = {Concentration and distribution of extractable elements in a soil affected by tillage systems and fertilization},
	year = {1999},
	pages = {185-191},
	author = {Lavado, R. S and Porcelli, C. A and Alvarez, R}
}
@article {483,
	title = {Estimating the uptake of traffic-derived NO2 from N-15 abundance in Norway spruce needles},
	volume = {118(2)},
	year = {1999},
	pages = {124-131},
	author = {Ammann, M. and Siegwolf, R. and Pichlmayer, F. and Suter, M. and Saure, M. and Brunold, C.}
}
@article {263,
	title = {Indicators of climate change in the UK},
	year = {1999},
	institution = {Department of the Environment, Transport and the Regions},
	author = {Cannell, M.G.R. and Palutikof, J.P. and Sparks, T.H.}
}
@article {714,
	title = {Ozone stimulates protonematal growth and gametophore production in Polytrichum commune},
	volume = {102},
	year = {1999},
	pages = {398-403},
	author = {Petersen, R. and Bosley, A. and Rebbeck, J.}
}
@article {514,
	title = {The resistance of the moss Polytrichum commune to acute exposure of simulated acid rain or ozone compared to two fern species: Spore germination},
	volume = {101},
	year = {1999},
	pages = {512-518},
	author = {Bosley, A. and Petersen, R. and Rebbeck, J.}
}
@article {1851,
	title = {Arsenic in wetland vegetation: Availability, phytotoxicity, uptake and effects on plant growth and nutrition},
	year = {1998},
	pages = {189-199},
	author = {Carbonell, A. A and Aarabi, M. A and DeLaune, R. D and Gambrell, R. P and Patrick, W. H}
}
@article {1906,
	title = {Assessment of atmospheric heavy metals by moss monitoring with Isothecium stoloniferum Brid. in the Fraser Valley, B.C., Canada},
	year = {1998},
	pages = {25-44},
	author = {Pott, U and Turpin, D. H}
}
@article {1868,
	title = {Boron, zinc iron and managanese content in four grassland species},
	year = {1998},
	pages = {1286-1293},
	author = {Adarve, M. J and Hernandez, A. J and Gil, A and Pastor, J}
}
@inbook {657,
	title = {Bryology for the Twenty-first Century},
	year = {1998},
	pages = {331-341},
	chapter = {Effects of ozone and atmospheric nitrogen deposition on bryophytes},
	author = {Lee, J.A. and Caporn, S.J.M and Carroll, J. and Foot, J.P. and Johnson, D. and Potter, L. and Taylor, A.F.S. and Bates, J.W. (Eds) and Ashton, N.W. (Eds) and Ducken, J.G.}
}
@article {1844,
	title = {Comparison of bioaccumulation and deposition of antimony, lead and polycyclic aromatic hydrocarbons in two different areas},
	year = {1998},
	pages = {276-280},
	author = {Waber, M and Dietl, C and Kohler, J and Peichl, L}
}
@article {742,
	title = {Consequences of high loads of nitrogen for spruce (Picea abies) and beech (Fagus sylvatica) forests. },
	volume = {139},
	year = {1998},
	pages = {71-89},
	author = {Rennenberg, H. and Kreutzer, K. and Papen, H. and Weber, P.}
}
@article {22,
	title = {Dispersion, deposition and impacts of atmospheric ammonia: quantifying local budgets and spatial variability},
	journal = {Environmental Pollutution (Nitrogen Conference Special Issue)},
	volume = {102},
	year = {1998},
	pages = {349-361},
	chapter = {1},
	author = {Sutton, M.A. and Milford, C. and Dragosits, U. and Place, C.J. and Singles, R.J. and Smith, R.I. and Pitcairn, C.E.R. and Fowler, D. and Hill, J. and ApSimon, H.M. and Ross, C. and Hill, R. and Jarvis, S.C. and Pain, B.F. and Phillips, V.C. and Harrison, R. and Moss, D. and Webb, J. and Espenhahn, S.E. and Lee, D.S. and Hornung, M. and Ullyett, J. and Bull, K.R. and Emmett, B.A. and Lowe, J. and Wyers, G.P.}
}
@article {760,
	title = {Early effects of acid mist on Sitka spruce planted on acid peat.},
	volume = {39},
	year = {1998},
	pages = {1-25},
	author = {Sheppard, L.J. and Crossley, A. and Harvey, F. and Parrington, J. and White, C.C.}
}
@article {717,
	title = {Effects of N additions on the stress sensitivity of Calluna vulgaris. },
	volume = {138},
	year = {1998},
	pages = {663-673},
	author = {Poser, S.A. and Ashmore, M.R. and Cousins, D. and Sheppard, L.J.}
}
@article {720,
	title = {Impacts and fate of experimentally enhanced nitrogen deposition on a British lowland heath. },
	volume = {102},
	year = {1998},
	pages = {27-34},
	author = {Power, S. and Ashmore, M.R. and Cousins, D.A.}
}
@article {1850,
	title = {The influence of arsenic chemical form and concentration on Spartina patens  and  Spartina alterniflora growth and tissue arsenic concentration},
	year = {1998},
	pages = {33-43},
	author = {Carbonell-Barrachina, A. A and Aarabi, M. A and DeLaune, R. D and Gambrell, R. P and Patrick, W. H}
}
@article {17,
	title = {Modelling the spatial distribution of ammonia emissions in the UK},
	journal = {Environmental Pollutution (Nitrogen Conference Special Issue)},
	volume = {102},
	year = {1998},
	pages = {195-203},
	chapter = {1},
	author = {Dragosits, U. and Sutton, M.A. and Place, C.J. and Bayley, A.}
}
@article {19,
	title = {A new inventory for ammonia emissions from U.K. agriculture},
	journal = {(Ammonia Special Issue) Atmospheric Environment },
	volume = {32},
	year = {1998},
	pages = {309-313},
	author = {Pain, B.F. and van der Weerden, T.J. and Chambers, B.J. and Phillips, V.R. and Jarvis, S.C.}
}
@article {590,
	title = {Nitrogen deposition and its contribution to nitrogen cycling and associated soil processes},
	volume = {139},
	year = {1998},
	pages = {49-58},
	author = {Goulding, K.W.T. and Bailey, N.J. and Bradbury, N.J. and Hargreaves, P. and Howe, M. and Murphy, D.V. and Poulton, P.R. and Willison, T.W.}
}
@article {18,
	title = {Regional mass budgets of oxidized and reduced nitrogen and their relative contribution to the N inputs of sensitive ecosystems},
	journal = {Environmental Pollutution (Nitrogen Conference Special Issue)},
	volume = {102},
	year = {1998},
	pages = {337-342},
	chapter = {1},
	author = {Fowler, D. and Sutton, M.A. and Smith, R.I. and Pitcairn, C.E.R. and Coyle, M. and Campbel,l G. and Stedman, J.}
}
@article {85,
	title = {The relationship between nitrogen deposition, species composition and foliar nitrogen concentrations in woodland flora in the vicinity of livestock farms.},
	journal = {Environmental Pollution },
	volume = {102},
	year = {1998},
	pages = {41-48},
	author = {Pitcairn, C.E.R. and Leith, I.D. and Sheppard, L.J. and Sutton, M.A. and Fowler, D. and Munro, R.C. and Tang, S. and Wilson, D.}
}
@article {626,
	title = {Relationships between atmospheric nitrogen inputs and the vertical nitrogen and phosphorus concentration gradients in the lichen Cladonia portentosa},
	volume = {140},
	year = {1998},
	pages = {519-530},
	author = {Hyvdrinen, M. and Crittenden P.D.}
}
@article {251,
	title = {Soil nitrous oxide and nitric oxide emissions as indicators of the exceedance of critical loads of atmospheric nitrogen deposition in semi-natural ecosystems},
	journal = {Environmental Pollution},
	volume = {102},
	year = {1998},
	pages = {457-461},
	author = {Skiba, U. and Sheppard, L.J. and Pitcairn, C.E.R. and Leith, I.D. and Crossley, A. and van Dijk, S. and Kennedy, V.J. and Fowler, D.}
}
@article {728,
	title = {Some effects of acid rain on the mobilisation of elements from bird eggs.},
	volume = {7},
	year = {1998},
	pages = {334-337},
	author = {Pyatt, F.B. and Lacy, D. and Pyatt, A.J.}
}
@article {45,
	title = {Urban Air Pollution and Cardiopulmonary Ill-Health - A 14.5 Year Time Series Study},
	journal = {Occup. Environ. Med.},
	volume = {55},
	year = {1998},
	pages = {697-704},
	author = {Prescott, G.J and Cohen, G.R and Elton, R.A. and Fowkes, F.G.R. and Agius, R.M.}
}
@proceedings {70,
	title = {Workshop on critical limits and effects based approaches for heavy metals and persistent organic pollutants},
	year = {1998},
	publisher = {Federal Environment Agency (Umweltbundesamt), Berlin},
	address = {Bad Harzburg, Germany},
	author = {UN ECE Convention on Long-range Transboundary Air Pollution and Task Force on Mapping}
}
@book {725,
	title = {Aquatic Plants in Britain and Ireland},
	year = {1997},
	pages = {365},
	publisher = {Harley Books},
	organization = {Harley Books},
	address = {Colechester},
	author = {Preston, C.D. and Croft, J.M.}
}
@article {1843,
	title = { Association of antimony with traffic - occurrence in airborne dust, deposition and accumulation in standardized grass cultures},
	year = {1997},
	pages = { 235-244},
	author = {Dietl, C and Reifenhauser, W and Peichl, L}
}
@article {1894,
	title = {Canadian water quality guidelines for chromium},
	year = {1997},
	pages = {123-183},
	author = {Pawlisz, A. V and Kent, R. A and Schneider, U. A and Jefferson, C}
}
@book {708,
	title = {Ecology of dunes, salt marsh and shingle},
	year = {1997},
	publisher = {Chapman and Hall},
	organization = {Chapman and Hall},
	address = {London},
	author = {Packham, J.R. and Willis, A.J.}
}
@article {1910,
	title = {Lichens and moss as bioindicators and bioaccumulators in air pollution monitoring},
	year = {1997},
	pages = {175-190},
	author = {Palmieri, F and Neri, R and Benco, C and Serracca, L}
}
@article {810,
	title = {Long term effects of ammonium sulphate on Calluna vulgaris},
	volume = {34},
	year = {1997},
	pages = {208-216},
	author = {Uren, S.C. and Ainsworth, N. and Power, S. and Cousins, D.A. and Huxendurp, L.M. and Ashmore, M.R.}
}
@article {110,
	title = {Ozone in the United Kingdom 1997},
	year = {1997},
	institution = {Department of the Environment},
	address = {London},
	author = {PORG}
}
@article {562,
	title = {Pollution-related variation in food supply and breeding success in two hole-nesting passerines.},
	volume = {78},
	year = {1997},
	pages = {1120-1131},
	author = {Eeva, T. and Lehikoinen E. and Pohjalainen, T.}
}
@article {707,
	title = {Responses of Norwegian alpine Betula nana community to nitrogen fertilization},
	volume = {75},
	year = {1997},
	pages = {108-120},
	author = {Paal, J. and Fremstad, E. and Mols, T.}
}
@article {767,
	title = {Short-term physiological responses of mosses to atmospheric ammonium and nitrate. },
	volume = {93},
	year = {1997},
	pages = {225-242},
	author = {Soares, A. and Pearson, J.}
}
@article {207,
	title = {Adverse health effects due to soil water acidification: a Swedish research programme},
	journal = {Ambio},
	volume = {25},
	year = {1996},
	pages = {527-531},
	author = {Oskarsson, A. and Nordberg, G. and Block, M. and Rasmussen, F. and Petterson, R. and Skerfving, S. and Vahter, M. and Wicklund-Glynn, A. and Oborn, I. and Heikensten, M.L. and Thuvander, A.}
}
@article {670,
	title = {Assessing the critical load of SO2 for Scots Pine in situ. },
	volume = {93},
	year = {1996},
	pages = {27-38},
	author = {Manninen, S. and Huttunen, S. and Rautio, P. and Peramaki, P.}
}
@article {719,
	title = {The effect of long-term elevated ozone concentrations on the growth and photosynthesis of Sphagnum recurvum and Polytrichum commune},
	volume = {134},
	year = {1996},
	pages = {649-656},
	author = {Potter, L. and Foot, J.P. and Caporn, S.J.M and Lee, J.A.}
}
@article {711,
	title = {The effects of different ozone exposures on three contrasting populations of Plantago major L. },
	volume = {132},
	year = {1996},
	pages = {493-502},
	author = {Pearson, S. and Davison, A.W. and Reiling, K. and Ashenden, T.W. and Ollerenshaw, J.H.}
}
@article {697,
	title = {Misting and nitrogen fertilization of shoots of a saltmarsh grass: Effects upon fungal decay of leaf blades},
	volume = {108},
	year = {1996},
	pages = {495-502},
	author = {Newell, S.Y. and Arsuffi, T.L. and Palm, L.A.}
}
@article {78,
	title = {A preliminary map of the distribution of methane emissions from livestock sources in Great Britain},
	year = {1996},
	month = {08/1996},
	institution = {ITE Edinburgh},
	address = {Edinburgh},
	author = {Sutton, M.A. and Dragosits, U. and Fowler, D. and Place, C.J.}
}
@article {44,
	title = {Real-time Measurement of Correlated Size and Composition Profiles of Individual Atmospheric Aerosol Particles},
	journal = {Environ. Sci. Technol. },
	volume = {30},
	year = {1996},
	pages = {2667-2680},
	author = {Noble, C.A. and Prather, K.A.}
}
@article {718,
	title = {Responses of four Sphagnum species to acute ozone fumigation},
	volume = {19},
	year = {1996},
	pages = {19-32},
	author = {Potter, L. and Foot, J.P. and Caporn, S.J.M and Lee, J.A.}
}
@article {21,
	title = {Assessment of the magnitude of ammonia emissions in the United Kingdom.},
	journal = {Atmospheric Environment},
	volume = {29},
	year = {1995},
	pages = {1393-1411},
	author = {Sutton, M.A. and Place, C.J. and Eager, M. and Fowler, D. and Smith, R.I.}
}
@article {1700,
	title = {Biological Nitrogen-Fixation - an Efficient Source of Nitrogen for Sustainable Agricultural Production},
	volume = {174},
	year = {1995},
	pages = {3-28},
	keywords = {ammonia volatilization, azolla, casuarina, cropping systems, legume, legume residues, leucaena-leucocephala, lowland rice, n-2 fixation, natural n-15 abundance, new-south-wales, nitrogen fertilizer, north-eastern victoria, rhizobia, symbiotic n-2 fixation, wetland rice},
	author = {Peoples, M. B. and Herridge, D. F. and Ladha, J. K.}
}
@article {612,
	title = {Critical loads of acidity for surface waters - can the ANC limit be considered variable? },
	volume = {85},
	year = {1995},
	pages = {2419-2424},
	author = {Henriksen, A. and Posch, M. and Hultberg, H. and Lien, L.}
}
@article {246,
	title = {Deposition of fixed atmospheric nitrogen and foliar nitrogen content of bryophytes and Calluna vulgaris},
	journal = {Environmental Pollution},
	volume = {88},
	year = {1995},
	pages = {193-205},
	author = {Pitcairn, C.E.R. and Fowler, D. and Grace, J.}
}
@article {712,
	title = {Effects of nitrogen load to the forest floor in Sitka spruce stands as affected by differences in deposition and spruce aphid infestations. },
	volume = {85},
	year = {1995},
	pages = {1173-1178},
	author = {Pedersen, L.B. and Bille-Hansen, J.}
}
@article {715,
	title = {Inter actions of elevated CO2, NH3 and O3 on mycorrhizal infection, gas exchange and N metabolism in seedlings of Scots pine},
	volume = {176},
	year = {1995},
	pages = {107-116},
	author = {Pirez-Soba, M. and Dueck, T.A. and Puppi, G. and Kuiper, P.J.C.}
}
@article {1682,
	title = {Interactions of elevated CO2, NH3 and O3 on mycorrhizal infection, gas exchange and N metabolism in saplings of Scots pine.},
	volume = {176},
	year = {1995},
	pages = {107-116},
	author = {Perez-Soba, M and Dueck, T.A. and Puppi, G. and Kuiper, P.J.C.}
}
@article {722,
	title = {Long term effects of enhanced nitrogen deposition on a lowland dry heath in southern Britain. },
	volume = {85},
	year = {1995},
	pages = {1701-1706},
	author = {Power, S. and Ashmore, M.R. and Cousins, D.A. and Ainsworth, N.}
}
@article {297,
	title = {Nitrogen saturation in a long-term forest experiment with annual additions of nitrogen},
	journal = {Water, Air and Soil Pollution},
	volume = {85},
	year = {1995},
	pages = {1683-1688},
	author = {Tamm, C.O. and Aronsson, A. and Popovic, B.}
}
@article {286,
	title = {The nitrogen-phosphorus relationship in mountain lakes: Influence of atmospheric input, watershed, and pH},
	journal = {Limnology and Oceanography},
	volume = {40},
	year = {1995},
	pages = {930-937},
	author = {Kop{\'a}cek, J. and Proch{\'a}zkov{\'a}, L. and Stuchl{\'\i}k, E. and Blacka, P.}
}
@article {721,
	title = {Recent trends in beech tree health in southern Britain and the influence of soil type.},
	volume = {85},
	year = {1995},
	pages = {1293-1298},
	author = {Power, S. and Ashmore, M.R. and Ling, K.A.}
}
@article {912,
	title = {Towards a new method of setting a critical load of acidity for ombrotrophic peat},
	volume = {85},
	year = {1995},
	pages = {2491-2496},
	author = {Wilson, E.J. and Skeffington, R.A. and Maltby, E. and Immirzi, P. and Swanston, C. and Proctor, M.}
}
@article {284,
	title = {Atlas of the Bryophytes},
	journal = {Harley},
	year = {1994},
	author = {Hill, M. and Preston, C.D. and Smith, A.}
}
@article {247,
	title = {Atlas of the bryophytes of the British Isles},
	year = {1994},
	address = {Cambridge},
	author = {Preston, C.D. and Hill, M.O. and Smith, A.}
}
@article {1992,
	title = {The effects of various platinum metal species on the water plant Eichhornia crassipes (MART.). Solms.},
	year = {1994},
	pages = {1-12},
	author = {Farago, M. E and Parsons, P. J}
}
@article {734,
	title = {Interactions between exposure to O3 and nutrient uptake, growth, mycorrhizal and needle ultra-structure.},
	volume = {128},
	year = {1994},
	pages = {679-687},
	author = {Rantanen, L. and Palomaki, V and Holopainen, T.}
}
@article {710,
	title = {The Deposition of Atmospheric Ammonia and Its Effects on Plants},
	volume = {125},
	year = {1993},
	pages = {283-305},
	author = {Pearson, J. and Stewart, G.R.}
}
@article {20,
	title = {The exchange of ammonia between the atmosphere and plant communities.},
	volume = {24},
	year = {1993},
	pages = {301-393},
	author = {Sutton, M.A. and Pitcairn, C.E.R. and Fowler, D.}
}
@article {209,
	title = {How Britain hides its acid soil},
	journal = {New Scientist},
	volume = {137},
	year = {1993},
	pages = {29-33},
	author = {Pearce, F.}
}
@article {287,
	title = {Sphagnum species and polluted environments, past and future},
	journal = {Advances in Bryology },
	volume = {5},
	year = {1993},
	pages = {297-313},
	author = {Lee, J.A. and Parsons, A.N. and Baxter, R.}
}
@article {1625,
	title = {Stratospheric Aerosol Optical Depths, 1850-1990.},
	volume = {98},
	year = {1993},
	pages = {22987-22994},
	author = {Sato, M. and Hansen, J.E. and McCormick, M.P and Pollack, J.B.}
}
@article {661,
	title = {A survey of the health of Fagus sylvatica in southern Britain. },
	volume = {30},
	year = {1993},
	pages = {295-306},
	author = {Ling, K.A. and Power, S. and Ashmore, M.R.}
}
@inbook {504,
	title = {Biological recording of changes in British wildlife},
	volume = {ITE Symposium No. 20},
	year = {1992},
	publisher = {HMSO},
	organization = {HMSO},
	chapter = {Evidence for the effects of atmopheric pollution on bryophytes from national and local recording.},
	address = {London},
	author = {Adams, K.J. and Preston, C.D. and Harding, P.}
}
@book {727,
	title = {Lichen Flora of Great Britain and Ireland},
	year = {1992},
	pages = {710},
	publisher = {The Natural History Museum},
	organization = {The Natural History Museum},
	address = {London},
	author = {Purvis, O.W. and Coppins, B.J. and Hawksworth, D.L. and James, P. and Moore, D.M.}
}
@article {160,
	title = {Changes in species composition of semi-natural vegetation associated with the increase in atmospheric inputs of nitrogen},
	year = {1991},
	institution = {Institute of Terrestrial Ecology},
	address = {Bush},
	author = {Pitcairn, C.E.R. and Fowler, D.}
}
@article {1276,
	title = {Physiological effects of long term exposure to low concentrations of SO2 and NH3 on poplar leaves.},
	volume = {82},
	year = {1991},
	pages = {32-40},
	author = {van Hove, L.W.A. and van Kooten, O. and van Wijk, K.J and Vredenberg, W.J. and Adema, E.H. and Pieters,  G.A.}
}
@article {1640,
	title = {Physiological effects of long term exposure to low concentrations of SO2 and NH3 on poplar leaves.},
	volume = {82},
	year = {1991},
	pages = {32-40},
	author = {van Hove, L.W.A. and van Kooten, O. and van Wijk, K.J and Vrendenberg, W.J. and Adema, E.H. and Pieters, G.A.}
}
@article {823,
	title = {Physiological-effects of long-term exposure to low concentrations of SO2 and NH3 on poplar leaves},
	volume = {82},
	year = {1991},
	pages = {32-40},
	author = {van Hove, L.W.A. and Vankooten, O. and Vanwijk, K.J. and Vredenberg, W.J. and Adema, E.H. and Pieters, G.A.}
}
@article {227,
	title = {Zeigerwerte von Pflanzen in Mitteleuropa},
	journal = {Scripta Geobotanica},
	volume = {18},
	year = {1991},
	pages = {1-248},
	author = {Ellenberg, H. and Weber, H.E. and Dull, R. and Wirth, V. and Werner, W. and Pauli{\ss}en, D.}
}
@article {1892,
	title = {Cadmium uptake and toxicity to water hyacinth: effect of repeated exposures under controlled conditions},
	year = {1990},
	pages = {149-157},
	author = {Nir, R and Gasith, A and Perry, A. S}
}
@article {507,
	title = {Decline of the natterjack toad Bufo clamita in Britain: Paleoecological, documentary and experimental evidence for breeding site acidification},
	volume = {53},
	year = {1990},
	pages = {1-20},
	author = {Beebee, T.J.C. and Flower, R.J. and Stevenson, A.C. and Patrick, S.T. and Appleby, P.G. and Fletcher, C. and Marsh, C. and Natkanski, J. and Rippey, B. and Batterby, R.}
}
@article {1558,
	title = {Forest decline, nutrient supply and diagnostic fertilisation in southwestern Germany and in southern California. },
	volume = {30},
	year = {1990},
	pages = {341-350},
	author = {Huettl, R.F. and Fink, S. and Lutz, H.J. and Poth, M. and Wisniewski, J.}
}
@article {185,
	title = {Forest soil chemical changes between 1949/50 and 1987},
	journal = {Journal of Soil Science},
	volume = {41},
	year = {1990},
	pages = {133-135},
	author = {Billett, M.F. and Parker-Jervis, F. and FitzPatrick, E.A. and Cresser, M.S.}
}
@article {1637,
	title = {Growth Dynamics of Wheat (Triticum aestivum L.) Exposed to Sulfur Dioxide Pollution.},
	volume = {45},
	year = {1990},
	pages = {408-414},
	author = {Lorenzini, G. and Panicucci, A. and Guidi, L.}
}
@article {1437,
	title = {The nutritional status of Picea abies (L.) Karst. across Europe, and implications for "forest decline".},
	volume = {4},
	year = {1990},
	pages = {211-224},
	author = {Cape, J.N and Freer-Smith, P.H. and Paterson, I.S. and Parkinson, J.A. and Wolfenden, J.}
}
@article {1947,
	title = {Acute toxicity of six metals to the rotifer Brachionus calyciflorus, with comparisons to other freshwater organisms},
	year = {1989},
	pages = {451-462},
	author = {Couillard, Y and Ross, P and Pinel-Alloul, B}
}
@article {1891,
	title = {Results of the harmful effects of water pollutants to Daphnia magna in the 21 day Reproduction Test},
	year = {1989},
	pages = {501-510},
	author = {K{\"u}hn, R and Pattard, M and Pernak, K and Winter, A}
}
@article {543,
	title = {Simulation of the long-term soil response to acid deposition in various buffer ranges},
	volume = {48},
	year = {1989},
	pages = {349-490},
	author = {de Vries, W. and Posch, M. and Kamari, J.}
}
@article {723,
	title = {Unifying nutrient-chlorophyll relationships in lakes. },
	volume = {46},
	year = {1989},
	pages = {1176-1182},
	author = {Prairie, Y.T. and Duarte, C.M. and Kalff, J.}
}
@article {476,
	title = {Fertilization in a mature Scots pine (Pinus-sylvestris l) stand - effects on fine roots},
	volume = {106},
	year = {1988},
	pages = {179-190},
	author = {Ahlstrom, K. and Persson, H. and Boriesson, I.}
}
@book {60,
	title = {Lake Acidification in the United Kingdom 1800-1986},
	year = {1988},
	publisher = {ENSIS Publishing},
	organization = {ENSIS Publishing},
	address = {London},
	author = {Battarbee, R.W. and Anderson, N.J. and Appleby, P.G. and Flower, R.J. and Fritz, S.C. and Haworth, E.Y. and Higgitt, S. and Jones, V.J. and Kreiser, A. and Munro, M.A.R. and Natkanski, J. and Oldfield, F. and Patrick, S.T. and Richardson, N.G. and Rippey, B. and Stevenson, A.C.}
}
@article {1853,
	title = {Mortality and LC50 values for several stages of the marine copepod Trigriopus brevicornis (M{\"u}ller) exposed to the metals arsenic and cadmium and the pesticides atrazine, carbofuran, dichlorovos and malathion},
	year = {1988},
	pages = {239-244},
	author = {Forget, J and Pavillon, J. F and Menasria, M. R and Bocquen{\'e}, G}
}
@article {68,
	title = {Quantitative Assessment of Worldwide Contamination of Air, Water, and Soils by Trace Metals},
	journal = {Nature},
	volume = {333},
	year = {1988},
	pages = {134-139},
	author = {Nriagu, J.O. and Pacyna, J.F.}
}
@article {53,
	title = {Effects of airborne fluoride emissions in Wales, Part 1},
	journal = {Environmental Pollution},
	volume = {47},
	year = {1987},
	pages = {63-78},
	author = {Perkins, D.F. and Millar R.O.}
}
@article {54,
	title = {Effects of airborne fluoride emissions in Wales, Part 2},
	journal = {Environmental Pollution},
	volume = {48},
	year = {1987},
	pages = {185-196.},
	author = {Perkins, D.F. and Millar, R.O.}
}
@article {1494,
	title = {Effect of Stream Acidification on Periphyton Composition, Chlorophyll, and Productivity.},
	volume = {43},
	year = {1986},
	pages = {1846-1858},
	author = {Mulholland, P.J. and Elwood, J.W. and Palumbo, A.V. and Stevenson, R.J.}
}
@article {210,
	title = {The potential importance of an increased atmospheric nitrogen supply to the growth of ombrotrophic Sphagnum species},
	journal = {New Phytologist},
	volume = {103},
	year = {1986},
	pages = {45-55},
	author = {Press, M.C. and Woodin, S.J. and Lee, J.A.}
}
@article {153,
	title = {The role of prediction in limnology},
	journal = {Limnology Oceanography},
	volume = {31},
	year = {1986},
	pages = {1143-1159},
	author = {Peters, R. H.}
}
@article {851,
	title = {Nitrate reductase activity in Sphagnum fuscum in relation to atmospheric nitrate deposition},
	volume = {99},
	year = {1985},
	pages = {381-388},
	author = {Woodin, S.J. and Press, M.C. and Lee, J.A.}
}
@book {1905,
	title = {Trace elements in soils and plants},
	series = {Trace elements in soils and plants},
	year = {1984},
	publisher = {CRC Press},
	organization = {CRC Press},
	address = {Boca Raton, Florida},
	author = {Kabata-Pendias, A and Pendias, H}
}
@article {724,
	title = {Two hundred years of acid rain},
	volume = {108},
	year = {1983},
	pages = {125-129},
	author = {Press, M.C. and Fergusson, P. and Lee, J.A.}
}
@article {117,
	title = {Shell thinning and residues of organochlorine and mercury in seabird eggs, Eastern Canada 1970-1976},
	journal = {Pesticide Monitoring Journal },
	volume = {13},
	year = {1979},
	pages = {61-68},
	author = {Pearse, P.A. and Peakall, D.B. and Reynolds, L.M.}
}
@book {24,
	title = {Microphysics of Clouds and Precipitation},
	year = {1978},
	pages = {715 pp},
	publisher = {Reidel Publishing Company},
	organization = {Reidel Publishing Company},
	address = {Dordrecht, NL},
	author = {Pruppacher, H.R. and Klett, J.D.}
}
@article {1987,
	title = {Platinum uptake by horticultural crops},
	year = {1978},
	pages = {207-},
	author = {Pallas, J. E and Jones, J. B}
}
@inbook {608,
	title = {Production Ecology of British Moors and Montane Grasslands, },
	year = {1978},
	pages = {3-16},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	chapter = {Introduction and site description},
	address = {Berlin},
	author = {Heal, O.W. and Smith, R.A.H. and Heal, O.W. (Eds) and Perkins, D.F. (Eds)}
}
@book {713,
	title = {Atlas of the British Flora. Botanical Society of the British Isles},
	year = {1976},
	publisher = {EP Publishing},
	organization = {EP Publishing},
	edition = {2nd},
	address = {Wakefield},
	author = {Perring, F.H. and Walters, S.M. (Eds)}
}
@article {690,
	title = {The British Oak},
	year = {1974},
	publisher = {Botanical Society of the British Isles.},
	author = {Morris, M.G. and Perring, F.H.}
}
@article {519,
	title = {The British Oak},
	year = {1974},
	pages = {141-161},
	publisher = {Botanical Society of the British Isles},
	author = {Brown, A.H.F. and Morris, M.G. (Eds) and Perring, F.H. (Eds)}
}
@inbook {750,
	title = {The British Oak},
	year = {1974},
	pages = {250-273},
	publisher = {Botanical Society of the British Isles.},
	organization = {Botanical Society of the British Isles.},
	chapter = {The Epiphytes of Oak},
	author = {Rose, F. and Morris, M.G. (Eds) and Perring, F.H. (Eds)}
}
@article {1984,
	title = {Toxicity of methylmercury and copper, apllied singly and jointly, to the blue gourami Trichogaster trichopterus},
	year = {1974},
	author = {Roales, R. R and Perlmutter, A}
}
@article {631,
	title = {The response of grasslands in sugar limestone in Teesdale to application of phosphorus and nitrogen},
	volume = {61},
	year = {1973},
	pages = {85-92},
	author = {Jeffrey, D.W. and Piggot, C.D.}
}
@article {1982,
	title = {Temperature effects on mercury accumulation, toxicity and metabolism rate in rainbow trout},
	year = {1973},
	pages = {485-492},
	author = {MacLeod, J. C and Pessah, E}
}
@article {1972,
	title = {The toxicity of  140 substances to the brown shrimp and other marine animals},
	number = {11},
	year = {1971},
	institution = {MInistry of Agriculture, Fisheries and Food},
	author = {Portmann, J. E and Wilson, K. W}
}
