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6 - Nitrogen processes in terrestrial ecosystems

from Part II - Nitrogen processing in the biosphere

Published online by Cambridge University Press:  16 May 2011

By
Klaus Butterbach-Bahl ,
Per Gundersen ,
Per Ambus ,
Jürgen Augustin ,
Claus Beier ,
Pascal Boeckx ,
Michael Dannenmann ,
Benjamin Sanchez Gimeno ,
Andreas Ibrom  and
Ralf Kiese
...Show all authors
Edited by
Mark A. Sutton ,
Clare M. Howard ,
Jan Willem Erisman ,
Gilles Billen ,
Albert Bleeker ,
Peringe Grennfelt ,
Hans van Grinsven  and
Bruna Grizzetti
Klaus Butterbach-Bahl
Affiliation:
Karlsruhe Institute of Technology
Per Gundersen
Affiliation:
University of Copenhagen
Per Ambus
Affiliation:
Risø DTU National Laboratory for Sustainable Energy
Jürgen Augustin
Affiliation:
Leibniz-Centre for Agricultural Landscape Research
Claus Beier
Affiliation:
Risø DTU National Laboratory for Sustainable Energy
Pascal Boeckx
Affiliation:
Ghent University
Michael Dannenmann
Affiliation:
University of Freiburg
Benjamin Sanchez Gimeno
Affiliation:
CIEMAT, Spain
Andreas Ibrom
Affiliation:
Risø National Laboratory for Sustainable Energy
Ralf Kiese
Affiliation:
Karlsruhe Institute for Technology
Barbara Kitzler
Affiliation:
Federal Research and Training Centre for Forests
Robert M. Rees
Affiliation:
Scottish Agricultural College
Keith A. Smith
Affiliation:
University of Edinburgh
Carly Stevens
Affiliation:
Open University
Timo Vesala
Affiliation:
University of Helsinki
Sophie Zechmeister-Boltenstern
Affiliation:
Federal Research and Training Centre for Forests
Mark A. Sutton
Affiliation:
NERC Centre for Ecology and Hydrology, UK
Clare M. Howard
Affiliation:
NERC Centre for Ecology and Hydrology, UK
Jan Willem Erisman
Affiliation:
Vrije Universiteit, Amsterdam
Gilles Billen
Affiliation:
CNRS and University of Paris VI
Albert Bleeker
Affiliation:
Energy Research Centre of the Netherlands
Peringe Grennfelt
Affiliation:
Swedish Environmental Research Institute (IVL)
Hans van Grinsven
Affiliation:
PBL Netherlands Environmental Assessment Agency
Bruna Grizzetti
Affiliation:
European Commission Joint Research Centre
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Summary

Executive summary

Nature of the problem

  • Nitrogen cycling in terrestrial ecosystems is complex and includes microbial processes such as mineralization, nitrification and denitrification, plant physiological processes (e.g. nitrogen uptake and assimilation) and physicochemical processes (leaching, volatilization). In order to understand the challenges nitrogen puts to the environment, a thorough understanding of all these processes is needed.

Approaches

  • This chapter provides an overview about processes relating to ecosystem nitrogen input and output and turnover. On the basis of examples and literature reviews, current knowledge on the effects of nitrogen on ecosystem functions is summarized, including plant and microbial processes, nitrate leaching and trace gas emissions.

Key findings/state of knowledge

  • Nitrogen cycling and nitrogen stocks in terrestrial ecosystems significantly differ between different ecosystem types (arable, grassland, shrubland, forests).

  • Nitrogen stocks of managed systems are increased by fertilization and N retention processes are negatively affected.

  • It is also obvious that nitrogen processes in natural and semi-natural ecosystems have already been affected by atmospheric Nr input.

  • Following perturbations of the N cycle, terrestrial ecosystems are increasingly losing N via nitrate leaching and gaseous losses (N2O, NO, N2 and in agricultural systems also NH3) to the environment.

Type
Chapter
Information
The European Nitrogen Assessment
Sources, Effects and Policy Perspectives
 , pp. 99 - 125
Publisher: Cambridge University Press
Print publication year: 2011

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References

Aber, J. D., Nadelhoffer, K. J., Steudler, P. and Melillo, J. M. (1989). Nitrogen saturation in northern forest ecosystems. BioScience, 39, 378–386.CrossRefGoogle Scholar
Aber, J. D., McDowell, W., Nadelhoffer, K.et al. (1998). Nitrogen saturation in temperate forest ecosystems: hypothesis revisited. BioScience, 48, 921–934.CrossRefGoogle Scholar
Aber, J. D., Goodale, C. L., Ollinger, S. V.et al. (2003). Is nitrogen deposition altering the nitrogen status of northeastern forests?BioScience, 53, 375–389.CrossRefGoogle Scholar
Accoe, F., Boeckx, P., Busschaert, J., Hofman, G. and Cleemput, O. (2004). Gross N transformation rates and net N mineralisation rates related to the C and N contents of soil organic matter fractions in grassland soils of different age. Soil Biology and Biochemistry, 36, 2075–2087.CrossRefGoogle Scholar
Ågren, G. I. and Bosatta, E. (1988). Nitrogen saturation of terrestrial ecosystems. Environmental Pollution, 54, 185–198.CrossRefGoogle ScholarPubMed
Alexis, M. A., Rasse, D. P., Rumpel, C.et al. (2007). Fire impact on C and N losses and charcoal production in a scrub oak ecosystem. Biogeochemistry, 82, 201–216.CrossRefGoogle Scholar
Ambus, P., Mosier, A. and Christensen, S. (1992). Nitrogen turnover rates in a riparian fen determined by 15N dilution. Biology and Fertility of Soils, 14, 230–236.CrossRefGoogle Scholar
Andersson, P., Berggren, D. and Nilsson, I. (2002). Indices for nitrogen status and nitrate leaching from Norway spruce (Picea abies (L.) Karst.) stands in Sweden. Forest Ecology and Management, 157, 39–53.CrossRefGoogle Scholar
Azam, F., Mahmood, T. and Malik, K. A. (1988). Immobilisation-remineralisation of NO3-N and total N balance during decomposition of glucose, sucrose and cellulose in soil incubated at different moisture regimes. Plant and Soil, 107, 159–163.CrossRefGoogle Scholar
Baggs, E. M. (2008). A review of stable isotope techniques for N2O source partitioning in soils: recent progress, remaining challenges and future considerations. Rapid Communication in Mass Spectrometry, 22, 1664–1672.CrossRefGoogle ScholarPubMed
Bais, H. P., Weir, T. L., Perry, G., Gilroy, S. and Vivanco, J. M. (2006). The role of root exudates in rhizosphere interactions with plants and other microorganisms. Annual Review of Plant Biology, 57, 233–266.CrossRefGoogle Scholar
Ball, B. C., Bingham, I., Rees, R. M., Watson, C.A. and Litterick, A. (2005). The role of crop rotations in determining soil structure and crop growth conditions. Canadian Journal of Soil Science, 85, 557–577.CrossRefGoogle Scholar
Barbosa, P., Camia, P., Kucera, J.et al. (2009). Assessment of forest fire impacts and emissions in the European Union based on the European Forest Fire Information System. In: Wildland Fires and Air Pollution. ed. Bytnerowicz, A., Arbaugh, M., Riebau, A. and Andersen, C., Elsevier: New York, pp. 197–208.Google Scholar
Barton, L., McLay, C. D. A., Schipper, L. A. and Smith, C. T. (1999). Annual denitrification rates in agricultural and forest soils: a review. Australian Journal of Soil Research, 37, 1073–1093.CrossRefGoogle Scholar
Bateman, E. J. and Baggs, E. M. (2005). Contributions of nitrification and denitrification to N2O emissions from soils at different water-filled pore space. Biology and Fertility of Soils, 41, 379–388.CrossRefGoogle Scholar
Batjes, N. H. (1996). Total carbon and nitrogen stocks in the soils of the world. European Journal of Soil Science, 47, 151–163.CrossRefGoogle Scholar
Beier, C., Emmett, B. A., Peñuelasc, J.et al. (2008). Carbon and nitrogen cycles in European ecosystems respond differently to global warming. Science of the Total Environment, 407, 692–697.CrossRefGoogle ScholarPubMed
Berg, B. (2000). Litter decomposition and organic matter turnover in northern forest soils. Forest Ecology and Management, 133, 13–22.CrossRefGoogle Scholar
Berg, B. and Matzner, E. (1997). Effect of N deposition on decomposition of plant litter and soil organic matter in forest systems. Environmental Reviews, 5, 1–25.CrossRefGoogle Scholar
Berg, B., Johansson, M.-B., Nilsson, Å., Gundersen, P. and Norell, L. (2009). Sequestration of Carbon in humus layers in Swedish forests – direct measurements. Canadian Journal of Forest Research, 39, 962–975.CrossRefGoogle Scholar
Binkley, D., Stottlemyer, R., Suarez, F. and Cortina, J. (1994). Soil nitrogen availability in some arctic ecosystems in northwest Alaska: responses to temperature and moisture. Ecoscience, 1, 64–70.CrossRefGoogle Scholar
Bobbink, R., Hornung, M. and Roelofs, J. G. M. (1998). The effects of air-borne nitrogen pollutants on species diversity in natural and semi-natural European vegetation. Journal of Ecology, 86, 717–738.CrossRefGoogle Scholar
Bollmann, A. and Conrad, R. (1997). Acetylene blockage technique leads to underestimation of denitrification rates in oxic soils due to scavenging of intermediate nitric oxide. Soil Biology and Biochemistry, 29, 1067–1077.CrossRefGoogle Scholar
Bonin, P. (1996). Anaerobic nitrate reduction to ammonium in two strains isolated from costal marine sediment: A dissimilatory pathway. FEMS Microbiology Ecology, 19, 27–38.CrossRefGoogle Scholar
Booth, M. S., Stark, J. M. and Rastetter, E. (2005). Controls on Nitrogen cycling in terrestrial ecosystems: a synthetic analysis of literature data. Ecological monographs, 75, 139–157.CrossRefGoogle Scholar
Bouwman, A. (1998). Nitrogen oxides and tropical agriculture. Nature, 392, 886–887.CrossRefGoogle Scholar
Bouwman, A. F., Boumans, L. J. M. and Batjes, N. H. (2002). Estimation of global NH3 volatilization loss from synthetic fertilizers and animal manure applied to arable lands and grasslands. Global Biogeochemical Cycles, 16, 1024–1038.CrossRefGoogle Scholar
Bouwman, A. F., Lee, D. S., Asman, W. A. H.et al. (1997). A global high-resolution emission inventory for ammonia. Global Biogeochemical Cycles, 11, 561–587.CrossRefGoogle Scholar
Boxman, A. W., Ven, P. J. M. and Roelofs, J. G. M. (1998a). Ecosystem recovery after a decrease in nitrogen input to a Scots pine stand at Ysselsteyn, the Netherlands. Forest Ecology and Management, 101, 155–163.CrossRefGoogle Scholar
Boxman, A. W., Blanck, K., Brandrud, T.-E.et al. (1998b). Vegetation and soil biota response to experimentally-changed nitrogen inputs in coniferous forest ecosystems of the NITREX project. Forest Ecology and Management, 101, 65–79.CrossRefGoogle Scholar
Bredemeier, M., Blanck, K., Dohrenbusch, A.et al. (1998). The Solling roof experiments – site characteristics, experiments and results. Forest Ecology and Management, 101, 281–293.CrossRefGoogle Scholar
Breuer, L., Kiese, R. and Butterbach-Bahl, K. (2002). Temperature and moisture effects on nitrification rates in tropical forest soils. Soil Science Society of America Journal, 66, 834–844.CrossRefGoogle Scholar
Britto, D. T. and Kronzucker, H. J. (2002). NH4+ toxicity in higher plants: a critical review. Journal of Plant Physiology, 159, 567–584.CrossRefGoogle Scholar
Brooks, M. L., D'Antonio, C. M., Richardson, D. M.et al. (2004). Effects of invasive alien plants on fire regimes. Bioscience, 54, 677–688.CrossRefGoogle Scholar
Brookshire, E. N. J., Valett, H. M., Thomas, S. A. and Webster, J. R. (2007). Atmospheric N deposition increases organic N loss from temperate forests. Ecosystems, 10, 252–262.CrossRefGoogle Scholar
Brumme, R., Borken, W. and Finke, S. (1999). Hierachical control on nitrous oxide emission in forest ecosystem. Global Biogeochemical Cycles, 13, 1137–1148.CrossRefGoogle Scholar
Brunstig, A. M. H. and Heil, G. W. (1985). The role of nutrients in the interactions between a herbivorous beetle and some competing plant species in healthlands. Oikos, 44, 23–26.CrossRefGoogle Scholar
Burger, M. and Jackson, L. E. (2003). Microbial immobilisation of ammonium and nitrate in relation to ammonification and nitrification rates in organic and conventional cropping systems. Soil Biology and Biochemistry, 35, 29–36.CrossRefGoogle Scholar
Burton, A. J., Pregitzer, K. S., Crawford, J. N., Zogg, G. P. and Zak, D. R. (2004). Simulated chronic NO3 deposition reduces soil respiration in northern hardwood forests. Global Change Biology, 10, 1080–1091.CrossRefGoogle Scholar
Butterbach-Bahl, K., Rothe, A. and Papen, H. (2002). Effect of tree distance on N2O and CH4-fluxes from soils in temperate forest ecosystems. Plant and Soil, 240, 91–103.CrossRefGoogle Scholar
Butterbach-Bahl, K., Kahl, M., Mykhayliv, L.et al. (2009). A European wide inventory of soil NO emissions using the biogeochemical models DNDC/ Forest DNDC. Atmospheric Environment, 43, 1392–1402.CrossRefGoogle Scholar
Butterbach-Bahl, K., Kock, M., Willibald, G.et al. (2004). Temporal variations of fluxes of NO, NO2, N2O, CO2 and CH4 in a tropical rain forest ecosystem. Global Biogeochemical Cycles, 18, doi:10.1029/2004GB002243.CrossRefGoogle Scholar
Butterbach-Bahl, K., Nemitz, E., Zaehle, S.et al. (2011). Nitrogen as a threat to the European greenhouse balance. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erisman, J. W.et al. Cambridge University Press.Google Scholar
Campbell, J. L., Hornbeck, J. W., McDowell, W. H.et al. (2000). Dissolved organic nitrogen budgets for upland, forested ecosystems in New England. Biogeochemistry, 49, 123–142.CrossRefGoogle Scholar
Campbell, J. L., Rustad, L. E., Boyer, E. W.et al. (2009). Consequences of climate change for biogeochemical cycling in forests of northeastern North America. Canadian Journal of Forest Soils, 39, 264–284.CrossRefGoogle Scholar
Cape, J. N., Anderson, M., Rowland, A. P. and Wilson, D. (2004). Organic nitrogen in precipitation across the United Kingdom. Water, Air, and Soil Pollution: Focus, 4, 25–35.CrossRefGoogle Scholar
Caporn, S. J. M., Ashenden, T. W. and Lee, J. A. (2000). The effect of exposure to NO2 and SO2 on frost hardiness in Calluna vulgaris. Environmental and Experimental Botany, 43, 111–119.CrossRefGoogle Scholar
Carlsson, G. and Huss-Danell, K. (2003). Nitrogen fixation in perennial forage legumes in the field. Plant and Soil, 253, 353–372.CrossRefGoogle Scholar
Cassman, K. G. and Harwood, R. R. (1995). The nature of agricultural systems – food security and environmental balance. Food Policy, 20, 439–454.CrossRefGoogle Scholar
Castaldi, S., Carfora, A., Fiorentino, A.et al. (2009). Inhibition of net nitrification activity in a Mediterranean woodland: possible role of chemicals produced by Arbutus unedo. Plant and Soil, 15, 273–283.CrossRefGoogle Scholar
Chapman, S. K., Langley, J. A., Hart, S. C. and Koch, G. W. (2006). Plants actively control nitrogen cycling: uncorking the microbial bottleneck. New Phytologist, 169, 27–34.CrossRefGoogle ScholarPubMed
Chapuis-Lardy, L., Wrage, N., Liemetay, A., Chotte, J. L. and Bernoux, M. (2007). Soils, a sink for N2O? A review. Global Change Biology, 13, 1–17.CrossRefGoogle Scholar
Christensen, S. and Tiedje, J. M. (1990). Brief and vigorous N2O production by soil at spring thaw. Journal of Soil Science, 41, 1–4.CrossRefGoogle Scholar
Ciais, P., Schelhaas, M. J., Zaehle, S.et al. (2008). Carbon accumulation in European forests. Nature Geoscience, 1, 425–429.CrossRefGoogle Scholar
Cleveland, C. C., Townsend, A. R., Schimel, D. S.et al. (1999). Global patterns of terrestrial biological nitrogen (N2) fixation in natural ecosystems. Global Biogeochemical Cycles, 13, 623–645.CrossRefGoogle Scholar
Cliff, J. B., Bottomley, P. J., Gaspar, D. J. and Myrold, D. D. (2002). Exploration of inorganic C and N assimilation by soil microbes with time of flight secondary ion mass spectrometry. Applied and Environmental Microbiology, 68, 4067–4073.CrossRefGoogle Scholar
Colloff, M. J., Wakelin, S. A., Gomez, D. and Rogers, S. L. (2008). Detection of nitrogen cycle genes in soils for measuring the effects of changes in land use and management. Soil Biology & Biochemistry, 40, 1637–1645.CrossRefGoogle Scholar
Conrad, R. (2002). Microbiological and biochemical background of production and consumption of NO and N2O in soil. In: Trace Gas Exchange in Forest Ecosystems, ed. Gasche, R., Papen, H. and Rennenberg, H.. Dordrecht: Kluwer Academic Publishers, pp. 3–33.Google Scholar
Corré, M. F., Beese, F. O. and Brumme, R. (2003). Soil nitrogen cycle in high nitrogen deposition forest: changes under nitrogen saturation and liming. Ecological Applications, 13, 287–298.CrossRefGoogle Scholar
Costa, E., Perez, J. and Kreft, J. U. (2006). Why is metabolic labour divided in nitrification?Trends inMicrobiology, 14, 213–219.Google ScholarPubMed
Crutzen, P. J., Mosier, A. R., Smith, K. A. and Winiwarter, W. (2008). N2O release from agro-biofuel production negates global warming reduction by replacing fossil fuels. Atmospheric Chemistry and Physics, 8, 389–395.CrossRefGoogle Scholar
Dail, D. B., Hollinger, D. Y., Davidson, E. A.et al. (2009). Distribution of nitrogen-15 tracers applied to the canopy of a mature spruce-hemlock stand, Howland, Maine, USA. Oecologia, 160, 589–599.CrossRefGoogle ScholarPubMed
Dannenmann, M., Gasche, R., Ledebuhr, A. and Papen, H. (2006). Effects of forest management on soil N cycling in beech forests stocking on calcareous soils. Plant and Soil, 287, 279–300.CrossRefGoogle Scholar
Davidson, E. A. (1994). Climate change and soil microbial processes: secondary effects are hypothesised from better known interacting primary effects. In: Soil Response to Climate Change, ed. Rounsevell, M. D. A. and Loveland, P. J.. Springer, Berlin: pp. 156–168.Google Scholar
Davidson, E. A. (2009). The contribution of manure and fertilizer nitrogen to atmospheric nitrous oxide since 1860. Nature Geoscience, 2, 659–662.CrossRefGoogle Scholar
Davidson, E. A., Hart, S. C. and Firestone, M. K. (1992). Internal cycling of nitrate in soils of a mature conferous forest. Ecology, 73, 1148–1156.CrossRefGoogle Scholar
Davidson, E. A., Hart, S. C., Shanks, C. A. and Firestone, M. K. (1991). Measuring gross nitrogen mineralisation, immobilisation, and nitrification by 15N isotopic pool dilution in intact soil cores. Journal of Soil Science, 42, 335–349.CrossRefGoogle Scholar
Davidson, E. A., Matson, P. A., Vitousek, P. M.et al. (1993). Processes regulating soil emissions of NO and N2O in a seasonally dry tropical forest. Ecology, 74, 130–139.CrossRefGoogle Scholar
Vries, W., Reinds, G. J., Gundersen, P. and Sterba, H. (2006). The impact of nitrogen deposition on carbon sequestration in European forests and forest soils. Global Change Biology, 12, 1151–1173.CrossRefGoogle Scholar
Vries, W., Salm, C., Reinds, G. J. and Erisman, J. W. (2007). Element fluxes through European forest ecosystems and their relationships with stand and site characteristics. Environmental Pollution, 148, 501–513.CrossRefGoogle ScholarPubMed
Vries, W., Solberg, S., Dobbertin, M.et al. (2008). Ecologically implausible carbon response. Nature, 441, E1–E3.Google Scholar
Vries, W., Solberg, S., Dobbertin, M.et al. (2009). The impact of nitrogen deposition on carbon sequestration by terrestrial ecosystems. Forest Ecology and Management, 258, 1814–1823.CrossRefGoogle Scholar
Dezi, S., Medlyn, B., Tonon, G. and Magnani, F. (2009). Effect of nitrogen deposition on forest carbon sequestration: model analysis. Global Change Biology, 16, 1470–1486.CrossRefGoogle Scholar
Dise, N. B., Matzner, E., Armbruster, M. and MacDonald, J. (2001). Aluminum output fluxes from forest ecosystems in Europe: a regional assessment. Journal of Environmental Quality, 30, 1747–1756.CrossRefGoogle ScholarPubMed
Dise, N. B., Rothwell, J. J., Gauci, V., Salm, C. and Vries, W. (2009). Predicting dissolved inorganic nitrogen leaching in European forests using two independent databases. Science of the Total Environment, 407, 1798–1808.CrossRefGoogle ScholarPubMed
Dise, N. B., Ashmore, M., Belyazid, S.et al. (2011). Nitrogen as a threat to European terrestrial biodiversity. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erisman, J. W.et al. Cambridge University Press.Google Scholar
Dobbie, K. E., McTaggart, I. P. and Smith, K. A. (1999). Nitrous oxide emissions from intensive agricultural systems: variations between crops and seasons, key driving variables, and mean emission factors. Journal of Geophysical Research, 104, 26891–26899.CrossRefGoogle Scholar
Dragosits, U., Theobald, M. R., Place, C. J.et al. (2002). Ammonia emission deposition and impact assessment at the field scale: a case study of sub-grid spatial variability. Environmental Pollution, 117, 147–158.CrossRefGoogle ScholarPubMed
Dupré, C., Stevens, C. J., Ranke, T.et al. (2010). Changes in species richness and composition in European acidic grasslands over the past 70 years: the contribution of cumulative atmospheric nitrogen deposition. Global Change Biology, 16, 344–357.CrossRefGoogle Scholar
Durand, P., Breuer, L., Johnes, P.et al. (2011). Nitrogen processes in aquatic ecosystems. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erisman, J. W.et al. Cambridge University Press.Google Scholar
Emmett, B. A., Gundersen, P., Kjønaas, O. J.et al. (1998). Predicting the effects of atmospheric nitrogen deposition in conifer stands: evidence from the NITREX ecosystem-scale experiments. Ecosystems, 1, 352–360.CrossRefGoogle Scholar
Eno, C. (1960). Nitrate production in the field by incubating the soil in polyethylene bags. Soil Science Society of America Proceedings, 24, 277–279.CrossRefGoogle Scholar
Erisman, J. W., Sutton, M. A., Galloway, J., Klimont, Z. and Winiwarter, W. (2008). How a century of ammonia synthesis changed the world. Nature Geoscience, 1, 636–639.CrossRefGoogle Scholar
Erisman, J. W., Grinsven, H., Grizzetti, B.et al. (2011). The European nitrogen problem in a global perspective. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erisman, J. W.et al. Cambridge University Press.Google Scholar
Eskew, D. L., Eaglesham, A. R. J. and App, A. A. (1981). Heterotrophic (N-15)2 fixation and distribution of newly fixed nitrogen in a rice-flooded soil system. Plant Physiology, 68, 48–52.CrossRefGoogle Scholar
Evans, C. D., Caporn, S. J. M., Carroll, J. A.et al. (2006). Modelling nitrogen saturation and carbon accumulation in heathland soils under elevated nitrogen deposition. Environmental Pollution, 143, 468–478.CrossRefGoogle ScholarPubMed
Evans, J. R. (1989). Photosynthesis and nitrogen relationships in leaves of C3 plants. Oecologia, 78, 9–19.CrossRefGoogle ScholarPubMed
Faegerli, H. and Aas, W. (2008). Trends of nitrogen in air and precipitation: Model results and observations at EMEP sites in Europe, 1980–2003. Environmental Pollution, 154, 448–461.CrossRefGoogle Scholar
Falkengren-Grerup, U., Linnermark, N. and Tyler, G. (1987). Changes in acidity and cation pools of south Swedish soils between 1949 and 1985. Chemosphere, 16, 2239–2248.CrossRefGoogle Scholar
Fisk, M. C., Zak, D. R. and Crow, T. R. (2002). Nitrogen storage and cycling in old- and second-growth northern hardwood forests. Ecology, 83, 73–87.CrossRefGoogle Scholar
Fowler, D., O'Donoghue, M., Muller, J. B. A.et al. (2004). A chronology of nitrogen deposition in the UK between 1900 and 2000. Water, Air and Soil Pollution, 4, 9–23.CrossRefGoogle Scholar
French, S., Levy-Booth, D., Samarajeewa, A.et al. (2009). Elevated temperatures and carbon dioxide concentrations: effects on selected microbial activities in temperate agricultural soils. World Journal of Microbiology Biotechnology, 25, 1887–1900.CrossRefGoogle Scholar
Freppaz, M., Williams, B. L., Edwards, A. C., Scalenghe, R. and Zanini, E. (2007). Labile nitrogen, carbon and phosphorous pools and nitrogen mineralisation and immobilisation rates at low temperatures in seasonally snow-covered soils. Biology and Fertility of Soils, 43, 519–529.CrossRefGoogle Scholar
Gaige, E., Dail, D. B., Hollinger, D. Y.et al. (2007). Changes in canopy processes following whole-forest canopy nitrogen fertilisation of a mature spruce-hemlock forest. Ecosystems, 10, 1133–1147.CrossRefGoogle Scholar
Galloway, J. N., Aber, J. D., Erisman, J. W.et al. (2003). The nitrogen cascade. BioScience, 53, 341–356.CrossRefGoogle Scholar
Galloway, J. N., Dentener, F. J., Capone, D. G.et al. (2004). Nitrogen cycles: past, present, future. Biogeochemistry, 70, 153–226.CrossRefGoogle Scholar
Gimeno, B. S., Yuan, F., Fenn, M. E. and Meixner, T. (2009). Management options for mitigating nitrogen (N) losses from N-saturated mixed-conifer forests in California. In: Wildland Fires and Air Pollution. ed. Bytnerowicz, A., Arbaugh, M., Riebau, A. and Andersen, C., Elsevier, New York: pp. 425–455.Google Scholar
Glass, A. D. M., Britto, D. T., Kaiser, B. N.et al. (2002). The regulation of nitrate and ammonium transport systems in plants. Journal of Experimental Botany, 53, 855–864.CrossRefGoogle ScholarPubMed
Griffin, T. S., He, Z. and Honeycutt, C.W. (2005). Manure composition affects net transformation of nitrogen from dairy manures. Plant and Soil, 273, 29–38.CrossRefGoogle Scholar
Groffman, P. M., Altabet, M. A., Böhlke, J. K.et al. (2006). Methods for measuring denitrification: diverse approaches to a difficult problem. Ecological Applications, 16, 2091–2122.CrossRefGoogle ScholarPubMed
Groffman, P. M., Butterbach-Bahl, K., Fulweiler, R. W.et al. (2009). Incorporating spatially and temporally explicit phenomena (hotspots and hot moments) in denitrification models. Biogeochemistry, 93, 49–77.CrossRefGoogle Scholar
Grulke, N. E., Minnich, R. A., Paine, T. D.et al. (2009). Air pollution increases forest susceptibility to wildfires: A case study in the San Bernardino Mountains in southern California. In: Wildland Fires and Air Pollution, ed. Bytnerowicz, A., Arbaugh, M., Riebau, A. and Andersen, C., New York: Elsevier, pp. 365–403.Google Scholar
Gundersen, P. and Rasmussen, L. (1990). Nitrification in forest soils: effects of nitrogen deposition on soil acidification and aluminium release. Reviews ofEnvironmental Contamination Toxicology, 13, 1–45.Google Scholar
Gundersen, P., Callesen, I. and Vries, W. (1998a). Nitrate leaching in forest ecosystems is controlled by forest floor C/N ratio. Environmental Pollution, 102, 403–407.CrossRefGoogle Scholar
Gundersen, P., Emmett, B. A., Kjønaas, O. J., Koopmans, C. and Tietema, A. (1998b). Impact of nitrogen deposition on nitrogen cycling: a synthesis of NITREX-data. Forest Ecology and Management, 101, 37–55.CrossRefGoogle Scholar
Gundersen, P., Boxman, A. W., Lamersdorf, N., Moldan, F. and Andersen, B. R. (1998c). Experimental manipulation of forest ecosystems – lessons from large roof experiments. Forest Ecology and Management, 101, 339–352.CrossRefGoogle Scholar
Gundersen, P., Schmidt, I. K. and Raulund-Rasmussen, K. (2006). Leaching of nitrate from temperate forests: effects of air pollution and forest management. Environmental Reviews, 14, 1–57.CrossRefGoogle Scholar
Gundersen, P., Sevel, L., Christiansen, J. R.et al. (2009). Do indicators of nitrogen retention and leaching differ between coniferous and deciduous forests in Denmark?Forest Ecology and Management, 258, 1137–1146.CrossRefGoogle Scholar
Hagedorn, F., Spinnler, D. and Siegwolf, R. (2003). Increased N deposition retards mineralization of old soil organic matter. Soil Biology and Biochemistry, 35, 1683–1692.CrossRefGoogle Scholar
Harrison, K. A., Bol, R. and Bardgett, R. D. (2007). Preferences for different nitrogen forms by coexisting plant species and soil microbes. Ecology, 88, 989–999.CrossRefGoogle ScholarPubMed
Hart, S. C., Nason, G. E., Myrold, D. D. and Perry, D. A. (1994). Dynamics of gross nitrogen transformations in an old-growth forest: the carbon connection. Ecology, 75, 880–891.CrossRefGoogle Scholar
Havas, M. and Rossland, B. O. (1995). Response of zoopankton, benthos and fish to acidification: an overview. Water, Air and Soil Pollution, 85, 51–62.CrossRefGoogle Scholar
Hayatsu, M., Tago, K. and Saito, M. (2008). Various players in the nitrogen cycle: diversity and functions of the microorganisms involved in nitrification and denitrification. Soil Science and Plant Nutrition, 54, 33–45.CrossRefGoogle Scholar
Herridge, D. F., Peoples, M. B. and Boddey, R. M. (2008). Global inputs of biological nitrogen fixation in agricultural systems. Plant and Soil, 311, 1–8.CrossRefGoogle Scholar
Hertel, O., Reis, S., Skjøth, C. A.et al. (2011). Nitrogen processes in the atmosphere. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erismar, J. W.et al. Cambridge University Press.CrossRefGoogle Scholar
Hofstra, N. and Bouwman, A. F. (2005). Denitrification in agricultural soils: summarizing published data and estimating global annual rates. Nutrient Cycling in Agroecosystems, 72, 267–278.CrossRefGoogle Scholar
Högberg, P. and Read, D. J. (2006). Towards a more plant physiological perspective on soil ecology. Ecology and Evolution, 21, 548–554.CrossRefGoogle ScholarPubMed
Högberg, P., Fan, H., Quist, M., Binkley, D. and Tamm, C. O. (2006). Tree growth and soil acidification in response to 30 years of experimental nitrogen loading on boreal forest. Global Change Biology, 12, 489–499.CrossRefGoogle Scholar
Houlton, B. Z. and Bai, E. (2009). Imprint of denitrifying bacteria on the global terrestrial biosphere. Proceedings of the National Academy of Sciences of the USA, 106, 21713–21716.CrossRefGoogle ScholarPubMed
Humbert, S., Tarnawski, S., Fromin, N.et al. (2010). Molecular detection of anammox bacteria in terrestrial ecosystems: distribution and diversity. ISME Journal, 4, 450–454.CrossRefGoogle ScholarPubMed
Hyvönen, R., Persson, T., Andersson, S.et al. (2008). Impact of long-term nitrogen addition on carbon stocks in trees and soils in northern Europe. Biogeochemistry, 89, 121–137.CrossRefGoogle Scholar
Ingwersen, J., Butterbach-Bahl, K., Gasche, R., Richter, O. and Papen, H. (1999). Barometric process separation: New method for quantifying nitrification, denitrification, and nitrous oxide sources in soils. Soil Science Society of America Journal, 63, 117–128.CrossRefGoogle Scholar
,IPCC (1997). Revised 1996 Guidelines for National Greenhouse Gas Inventories, Bracknell, UK: IPCC.Google Scholar
,IPCC (2007). 2006 Guidelines for National Greenhouse Gas Inventories, Vol. 4, Chap. 11, Hayama, Japan: IGES.Google Scholar
Jackson, L. E., Burger, M. and Cavagnaro, T. R. (2008). Roots, nitrogen transformations and ecosystem services. Plant Biology, 59, 341–363.CrossRefGoogle ScholarPubMed
Janssens, I.A., Dieleman, W., Luyssaert, S.et al. (2010). Reduction of forest soil respiration in response to nitrogen deposition. Nature Geoscience, 3, 315–322.CrossRefGoogle Scholar
Jansson, S. L., Hallam, M. J. and Bartholomew, W. V. (1955). Preferential utilization of ammonium over nitrate by microorganisms in the decomposition of oat straw. Plant and Soil, 4, 382–390.CrossRefGoogle Scholar
Jarvis, P. G. and Linder, S. (2000). Constraints to growth of boreal forests. Nature, 405, 904–905.CrossRefGoogle ScholarPubMed
Jarvis, S. C., Stockdale, E. A., Shepherd, M. A. and Powlson, D.S. (1996). Nitrogen mineralisation in temperate agricultural soils: processes and measurement. Agronomy, 57, 187–235.CrossRefGoogle Scholar
Jarvis, S., Hutchings, N., Brentrup, F., Olesen, J. and Hoek, K. (2011). Nitrogen flows in farming systems across Europe. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erisman, J. W.et al. Cambridge University Press.Google Scholar
Jensen, L. S., Schjoerring, J.K., Hoek, K.et al. (2011). Benefits of nitrogen for food fibre and industrial production. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erisman, J. W.et al. Cambridge University Press.Google Scholar
Johnson, D. W., Murphy, J. D., Walker, R. F., Miller, W. W. and Glass, D. W. (2007). Wildfire effects on forest carbon and nutrient budgets: comparison of reconstructed versus measured values. Ecological Engineering, 31, 183–192.CrossRefGoogle Scholar
Karjalainen, T., Schuck, A., Prietzel, J.et al. (2008). Causes and Consequences of Forest Growth Trends in Europe, Results of the RECOGNITION Project, EFI Report No. 21. Joensuu: European Forest Institute.Google Scholar
Kesik, M., Blagodatsky, S., Papen, H. and Butterbach-Bahl, K. (2006a). Effect of pH, temperature and substrate on N2O, NO and CO2 production by Alcaligenes faecalis p. J. Applied Microbiology, 101, 655–667.CrossRefGoogle ScholarPubMed
Kesik, M., Brüggemann, N., Forkel, R.et al. (2006b). Future scenarios of N2O and NO emissions from European forest soils. Journal of Geophysical Research, 97, 9777–9783.Google Scholar
Klemedtsson, L., Arnold, K., Weslien, P. and Gundersen, P. (2005). Soil N ratio as scalar parameter to predict nitrous oxide emissions. Global Change Biology, 11, 1–6.CrossRefGoogle Scholar
Kreutzer, K., Butterbach-Bahl, K., Rennenberg, H. and Papen, H. (2009). The complete nitrogen cycle of a N-saturated spruce forest ecosystem. Plant Biology, 11, 694–700.CrossRefGoogle ScholarPubMed
Kriebitzsch, W. U. (1978). Stickstoffnachlieferung in sauren Waldböden Nordwestdeutschlands. Scripta Geobotanica (Goltze, Göttingen, Germany), 14, 1–66.Google Scholar
Kristensen, H. L., Gundersen, P., Callesen, I. and Reinds, G. J. (2004). Relationships between soil nitrate concentrations and environmental factors. Ecosystems, 7, 180–192.Google Scholar
Laubhann, D., Sterba, H., Reinds, G. J. and Vries, W. (2009). The impact of changes in atmospheric deposition and climate on forest growth in European monitoring plots: An empirical tree growth model. Forest Ecology and Management, 258, 1751–1761.CrossRefGoogle Scholar
Li, C., Frolking, S. and Butterbach-Bahl, K. (2005). Carbon sequestration can increase nitrous oxide emissions. Climatic Change, 72, 321–338.CrossRefGoogle Scholar
Liu, L. and Greaver, T. L. (2009). Nitrogen addition stimulates emissions of biogenic greenhouse gases in terrestrial and wetland ecosystems. Ecology Letters, 12, 1103–1117.CrossRefGoogle Scholar
Lovett, G. M. and Lindberg, S. E. (1993). Atmospheric deposition and canopy interactions of nitrogen in forests. Canadian Journal of Forest Research, 23, 1603–1616.CrossRefGoogle Scholar
Ludwig, J., Meixner, F. X., Vogel, B. and Förstner, J. (2001). Soil-air exchange of nitric oxide: an overview of processes, environmental factors, and modeling studies. Biogeochemistry, 52, 225–257.CrossRefGoogle Scholar
MacDonald, J. A., Dise, N. B., Matzner, E.et al. (2002). Nitrogen input together with ecosystem nitrogen enrichment predict nitrate leaching from European forests. Global Change Biology, 8, 1028–1033.CrossRefGoogle Scholar
Machefert, S. E., Dise, N. B., Goulding, K. W. T. and Whitehead, P. G. (2002). Nitrous oxide emission from a range of land uses across Europe. Hydrology and Earth System Sciences, 6, 325–337.CrossRefGoogle Scholar
Magnani, F., Mencuccini, M., Borghetti, M.et al. (2007). The human footprint in the carbon cycle of temperate and boreal forests. Nature, 447, 848–850.CrossRefGoogle ScholarPubMed
Magnani, F., Mencuccini, M., Borghetti, M.et al. (2008). Ecologically implausible carbon response? Reply. Nature, 451, E3–E4.CrossRefGoogle Scholar
Majdi, H. (2004). Root and needle litter decomposition responses to enhanced supplies of N and S in a Norway spruce forest in southwest Sweden. Plant Biosystems, 138, 225–230.CrossRefGoogle Scholar
Maskell, L. C., Smart, S. M., Bullock, J. M., Thompson, K. and Stevens, C. J. (2009). Nitrogen deposition causes widespread loss of species richness in British habitats. Global Change Biology, 16, 671–679.CrossRefGoogle Scholar
McClain, M. E., Boyer, E. W., Dent, C. L. et al. (2003). Biogeochemical hotspots and hot moments at the interface of terrestrial and aquatic ecosystems. Ecosystems, 6, 301–312.CrossRefGoogle Scholar
McDowell, W. H., Magill, A. H., Aitkenhead-Peterson, J. A.et al. (2004). Effects of chronic nitrogen amendment on dissolved organic matter and inorganic nitrogen in soil solution. Forest Ecology and Management, 196, 29–41.CrossRefGoogle Scholar
McLauchlan, K. (2006). The nature and longevity of agricultural impacts on soil carbon and nutrients: a review. Ecosystems, 9, 1364–1382.CrossRefGoogle Scholar
Meyer, A., Grote, R., Polle, A. and Butterbach-Bahl, K. (2009). Simulating mycorrhiza contribution to forest C- and N cycling – the MYCOFON model. Plant and Soil, 327, 493–517.CrossRefGoogle Scholar
Michalzik, B., Kalbitz, K., Park, J.-H., Solinger, S. and Matzner, E. (2001). Fluxes and concentrations of dissolved organic carbon and nitrogen – a synthesis for temperate forests. Biogeochemistry, 52, 173–205.CrossRefGoogle Scholar
Miranda, A. I., Marchi, E., Ferretti, M. and Millán, M. (2009). Forest fires and air quality issues in southern Europe. In: Wildland Fires and Air Pollution. ed. Bytnerowicz, A., Arbaugh, M., Riebau, A. and Anderse, C., New York:Elsevier, pp. 209–231.Google Scholar
Misselbrook, T. H., Shepherd, M. A. and Pain, P. F. (1996). Sewage sludge applications to grassland: Influence of sludge type, time and method of application on nitrate leaching and herbage yield. Journal of Agricultural Science, 126, 343–352.CrossRefGoogle Scholar
Moldan, F., Kjønaas, O. J., Stuanes, A. and Wright, R. F. (2006). Increased nitrogen in runoff and soil following thirteen years of experimentally-increased nitrogen deposition to a coniferous-forested catchment at Gårdsjön, Sweden. Environmental Pollution, 144, 610–620.CrossRefGoogle Scholar
Moritsuka, N., Yanai, J., Mori, K. and Kosaki, T. (2004). Biotic and biotic processes of nitrogen immobilisation in the soil-residue interface. Soil Biology and Biochemistry, 36, 1141–1148.CrossRefGoogle Scholar
Müller, C., Kaleem Abbasi, M., Kammann, C.et al. (2004). Soil respiratory quotient determined via barometric process separation combined with nitrogen-15 labeling. Soil Science Society of America Journal, 68, 1610–1615.CrossRefGoogle Scholar
Müller, C., Rütting, T., Kattge, J., Laughlin, R. J. and Stevens, R. J. (2007). Estimation of parameters in complex 15N tracing models by Monte Carlo sampling. Soil Biology and Biochemistry, 39, 715–726.CrossRefGoogle Scholar
Murty, D., Kirschbaum, M. U. F., McMurtrie, R. E. and McGilvray, A. (2002). Does conversion of forest to agricultural land change soil carbon and nitrogen? A review of the literature. Global Change Biology, 8, 105–123.CrossRefGoogle Scholar
Myrold, D. D. and Posavatz, N. R. (2007). Potential importance of bacteria and fungi in nitrate assimilation in soil. Soil Biology and Biochemistry, 39, 1737–1743.CrossRefGoogle Scholar
Nadelhoffer, K. J. (2000). The potential effects of nitrogen deposition on fine-root production in forest ecosystems. New Phytologist, 147, 131–139.CrossRefGoogle Scholar
Nadelhoffer, K., Emmett, B. A., Gundersen, P.et al. (1999). Nitrogen deposition makes a minor contribution to carbon sequestration in northern forests. Nature, 398, 145–148.CrossRefGoogle Scholar
Näsholm, T., Kielland, K. and Ganeteg, U. (2009). Uptake of organic nitrogen by plants. New Phytologist, 182, 31–48.CrossRefGoogle ScholarPubMed
Nave, L. E., Vance, E. D., Swanston, C. W. and Curtis, P. S. (2009). Impacts of elevated N inputs on north temperate forest soil C storage C/N, and net N-mineralization. Geoderma, 153, 231–240.CrossRefGoogle Scholar
Neill, C., Piccolo, M., Melillo, J., Steudler, P. and Cerri, C. (1999). Nitrogen dynamics in Amazon forest and pasture soils measured by 15N pool dilution. Soil Biology and Biochemistry, 31, 567–572.CrossRefGoogle Scholar
Nijburg, J. W., Coolen, M. J. L., Gerards, S., Gunnewiek, P. J. A. K. and Laanbroek, H. J. (1997). Effects of nitrate availability and the presence of Glyceria maxima on the composition and activity of the dissimilatory nitrate-reducing bacterial community. Applied and Environmental Microbiology, 63, 931–937.Google ScholarPubMed
Nilsson, L. O. and Wallander, H. (2003). Production of external mycelium by ectomycorrhyzal fungi in a Norway spruce forest was reduced in response to nitrogen fertilisation. New Phytologist, 158, 409–416.CrossRefGoogle Scholar
Nilsson, L. O., Baath, E., Falkengren-Grerup, U. and Wallander, H. (2000). Growth of ectomycorrhyzal mycelia and composition of soil microbial communities in oak forest soils along a nitrogen deposition gradient. Oecologia, 153, 375–384.CrossRefGoogle Scholar
Nilsson, L. O., Giesler, R., Baath, E. and Wallander, H. (2005). Growth and biomass of mycorrhyzal mycelia in coniferous forests along short natural nutrient gradients. New Phytologist, 165, 613–622.CrossRefGoogle Scholar
Nishio, T., Komada, M., Arao, T. and Kanamori, T. (2001). Simultaneous determination of transformation rates of nitrate in soil. Japan Agriculture Research Quarterly, 35, 11–17.CrossRefGoogle Scholar
Oenema, O., Witzke, H. P., Klimont, Z., Lesschen, J. P. and Velthof, G. L. (2009). Integrated assessment of promising measures to decrease nitrogen losses from agriculture in EU-27. Agriculture, Ecosystems and Environment, 133, 280–288.CrossRefGoogle Scholar
Ormeci, B., Sanin, S. L. and Peirce, J. J. (1999). Laboratory studies of NO flux from agricultural soil: effects of soil moisture, pH and temperature. Journal of Geophysical Research, 104, 1621–1629.CrossRefGoogle Scholar
Palmroth, S., Oren, R., McCarthy, H. R.et al. (2006). Aboveground sink strength in forests controls the allocation of carbon below ground and its [CO2]-induced enhancement. Proceedings of the National Academy of Sciences of the USA, 103, 19362–19367.CrossRefGoogle Scholar
Papen, H., Gessler, A., Zumbusch, E. and Rennenberg, H. (2002). Chemolithoautotrophic nitrifiers in the phyllosphere of a spruce ecosystem recieving high atmospheric nitrogen input. Current Microbiology, 44, 56–60.CrossRefGoogle Scholar
Park, J. H. and Matzner, E. (2006). Detrial control on the release of dissolved organic nitrogen (DON) and dissolved inorganic (DIN) from the forest floor under chronic N deposition. Environmental Pollution, 143, 178–185.CrossRefGoogle Scholar
Parkin, T. B. (1987). Soil microsites as a source of denitrification variability. Soil Science Society of America Journal, 51, 1194–1199.CrossRefGoogle Scholar
Parrent, J. L. and Vilgalys, R. (2007). Biomass and compositional responses of ectomycorrhyzal fungal hyphae to elevated CO2 and nitrogen fertilisation. New Phytologist, 176, 164–174.CrossRefGoogle Scholar
Perakis, S. S. and Hedin, L. O. (2002). Nitrogen loss from unpolluted South American forests mainly via dissolved organic compounds. Nature, 415, 416–419.CrossRefGoogle ScholarPubMed
Pilegaard, K., Skiba, U., Ambus, P.et al. (2006). Factors controlling regional differences in forest soil emission of nitrogen oxides (NO and N2O). Biogeosciences, 3, 615–661.CrossRefGoogle Scholar
Pregitzer, K. S., Zak, D. R., Burton, A. J., Ashby, J. A. and MacDonald, N. W. (2004). Chronic nitrate additions dramatically increase the export of carbon and nitrogen from northern hardwood ecosystems. Biogeochemistry, 68, 179–197.CrossRefGoogle Scholar
Pregitzer, K. S., Burton, A. J., Zak, D. R. and Talhelm, A. F. (2008). Simulated chronic nitrogen deposition increases carbon storage in Northern Temperate forests. Global Change Biology, 14, 142–157.Google Scholar
Raastad, I. A. and Mulder, J. (1999). Dissolved organic matter (DOM) in acid forest soils at Gårdsjön (Sweden): natural variabilities and effects of increased input of nitrogen and of reversal of acidification. Water, Air and Soil Pollution, 114, 199–219.CrossRefGoogle Scholar
Rao, L. E., Allen, E. B. and Meixner, T. (2009). Risk-based determination of critical nitrogen deposition loads for fire spread in southern California deserts. Ecological Applications, 20, 1320–1335.CrossRefGoogle Scholar
Rasse, D. P., Rumpel, C. and Dignac, M. F. (2005). Is soil carbon mostly root carbon? Mechanisms for a specific stabilisation. Plant and Soil, 269, 341–356.CrossRefGoogle Scholar
Recous, S., Mary, B. and Faurie, G. (1990). Microbial immobilisation of ammonium and nitrate in cultivated soils. Soil Biology and Biochemistry, 22, 913–922.CrossRefGoogle Scholar
Rennenberg, H., Dannenmann, M., Gessler, A.et al. (2009). Nitrogen balance in forest soils: nutritional limitation of plants under climate change stresses. Plant Biology, 11, 4–23.CrossRefGoogle ScholarPubMed
Rice, C. W. and Tiedje, J. M. (1989). Regulation of nitrate assimilation by ammonium in soils and in isolated soil microorganisms. Soil Biology and Biochemistry, 21, 597.CrossRefGoogle Scholar
Roelofs, J. G. M., Kempers, A. J., Houdijk, A. L. F. M. and Jansen, J. (1985). The effect of air-borne ammonium sulphate on Pinus nigra var. maritima in the Netherlands. Plant and Soil, 84, 45–56.CrossRefGoogle Scholar
Ross, D. S., Lawrence, G. B. and Fredriksen, G. (2004). Mineralisation and nitrification patterns at eight northeastern USA forested research sites. Forest Ecology and Management, 188, 317–335.CrossRefGoogle Scholar
Rothe, A., Huber, C., Kreutzer, K. and Weis, W. (2002). Deposition and soil leaching in stands of Norway spruce and European beech: results from the Höglwald research in comparison with other case studies. Plant and Soil, 240, 33–45.CrossRefGoogle Scholar
Roy, A. H. and Hammond, L. L. (2004). Challenges and opportunities for the fertilizer industry. In: Agriculture and the Nitrogen Cycle (SCOPE Book 65), ed. Mosier, A., Syers, K. J. and Freney, J. R., Washington DC: Island Press, pp. 233–243.Google Scholar
Rustad, L. E., Campbell, J. L., Marion, G. M.et al. (2006). A meta-analysis of the response of soil respiration, net nitrogen mineralisation and aboveground plant growth to experimental ecosystem warming. Oecologia, 126, 543–562.CrossRefGoogle Scholar
Samarkin, V. A., Madigan, M. T., Bowles, M. W.et al. (2010). Abiotic nitrous oxide emission from the hypersaline Don Juan Pond in Antarctica. Nature Geoscience, 3, 341–344.CrossRefGoogle Scholar
Scarascia-Mugnozza, G., Bauer, G. A., Persson, H., Matteucci, G. and Masci, A. (2000). Tree biomass, growth and nutrient pools. In: Carbon and Nitrogen Cycling in European Forest Ecosystems, ed. Schulze, E. D.. Berlin: Springer, pp. 49–62.Google Scholar
Schimel, J. P. and Bennett, J. (2004). Nitrogen mineralisation: challenges of a changing paradigm. Ecology, 85, 591–602.CrossRefGoogle Scholar
Schmidt, I. K., Emmett, B. A., Tietema, A.et al. (2004). Soil solution chemistry and element fluxes in three European heathlands and their responses to warming and drought. Ecosystems, 7, 638–649.CrossRefGoogle Scholar
Seitzinger, S., Harrison, J. A., Böhlke, J. K.et al. (2006). Denitrification across landscapes and waterscapes: a synthesis. Ecological Applications, 16, 2064–2090.CrossRefGoogle ScholarPubMed
Sexstone, A., Revsbech, N., Parkin, T. and Tiedje, J. (1985). Direct measurement of oxygen profiles and denitrification rates in soil aggregates. Soil Science Society of America Journal, 49, 645–651.CrossRefGoogle Scholar
Shaw, M. R. and Harte, J. (2001). Response of nitrogen cycling to simulated climate change: differential responses along a subalpine ecotone. Global Change Biology, 7, 193–210.CrossRefGoogle Scholar
Shepherd, M. A., Hatch, D. J., Jarvis, S. C. and Bhogal, A. (2001). Nitrate leaching from reseeded pasture. Soil Use and Management, 17, 97–105.CrossRefGoogle Scholar
Sievering, H. (1999). Reply to Nitrogen deposition makes a minor contribution to carbon sequestration in temperate forests. Nature, 400, 629–630.CrossRefGoogle Scholar
Sievering, H., Tomaszewski, T. and Torizzo, J. (2007). Canopy uptake of atmospheric N deposition at a conifer forest: part I – canopy N budget, photosynthetic efficiency and net ecosystem exchange. Tellus, 59B, 483–492.CrossRefGoogle Scholar
Sikström, U., Nohrstedt, H. Ö., Petterson, F. and Jacobson, S. (1998). Stem-growth response of Pinus sylvestris and Picea abies to nitrogen fertilisation as related to needle nitrogen concentration. Trees, 12, 208–214.Google Scholar
Silver, W. L., Herman, D. J. and Firestone, M. K. (2001). Dissimilatory nitrate reduction to ammonium in upland tropical forest soils. Ecology, 82, 2410–2416.CrossRefGoogle Scholar
Simek, M., Jisova, L. and Hopkins, D. W. (2002). What is the so-called pH-optimum of denitrification?Soil Biology and Biochemistry, 34, 1227–1234.CrossRefGoogle Scholar
Sjöberg, G., Bergkvist, B., Berggren, D. and Nilsson, S. I. (2003). Long term N addition effects on the C mineralisation and DOC production in mor humus under spruce. Soil Biology and Biochemistry, 35, 1305–1315.CrossRefGoogle Scholar
Smil, V. (1999). Nitrogen in crop production: an account of global flows. Global Biogeochemical Cycles, 13, 647–662.CrossRefGoogle Scholar
Smith, K. A. (1997). The potential for feedback effects induced by global warming on emissions of nitrous oxide by soils. Global Change Biology, 3, 327–338.CrossRefGoogle Scholar
Solberg, S., Dobbertin, M., Reinds, G. J.et al. (2009). The impact of changes in atmospheric deposition and climate on forest growth in European monitoring plots: an empirical stand growth model. Forest Ecology and Management, 258, 1735–1750.CrossRefGoogle Scholar
Spangenberg, A. and Kölling, C. (2004). Nitrogen deposition and nitrate leaching at forest edges exposed to high ammonia emissions in Southern Bavaria. Water, Air and Soil Pollution, 152, 233–255.CrossRefGoogle Scholar
Sparks, J. P. (2009). Ecological ramifications of the direct foliar uptake of nitrogen. Oecologia, 159, 1–13.CrossRefGoogle ScholarPubMed
Staelens, J., Houle, D., Schrijver, A., Neirynck, J. and Verheyen, K. (2008). Calculating dry deposition and canopy exchange with the canopy budget model: review of assumptions and application to two deciduous forests. Water, Air and Soil Pollution, 191, 149–169.CrossRefGoogle Scholar
Stark, J. M. and Firestone, M. K. (1995). Mechanisms for soil moisture effects on activity of nitrifying bacteria. Applied and Environmental Microbiology, 61, 218–221.Google ScholarPubMed
Stevens, R. J., Laughlin, R. J. and Maline, J. P. (1998). Soil pH affects the processes reducing nitrate to nitrous oxide and di-nitrogen. Soil Biology and Biochemistry, 30, 1119–1126.CrossRefGoogle Scholar
Stevens, C. J., Dise, N. B., Gowing, D. J. and Mountford, J. O. (2006). Loss of forb diversity in relation to nitrogen deposition in the UK: regional trends and potential controls. Global Change Biology, 12, 1823–1833.CrossRefGoogle Scholar
Stevens, C. J., Dise, N. B., Mountford, J. O. and Gowing, D. J. (2004). Impact of nitrogen deposition on the species richness of grasslands. Science, 303, 1876–1879.CrossRefGoogle ScholarPubMed
Stockdale, E. A., Hatch, D. J., Murphy, D. V., Ledgard, S. F. and Watson, C. J. (2002). Verifying the nitrification to immobilisation ratio (N/I) as a key determinant of potential nitrate loss in grassland and arable soils. Agronomie, 22, 831–838.CrossRefGoogle Scholar
Stoddard, J. L., Jeffries, D. S., Lükewille, A.et al. (1999). Regional trends in aquatic recovery from acidification in North America and Europe. Nature, 401, 575–578.CrossRefGoogle Scholar
Subbarao, G. V., Ishikawa, T., Ito, O.et al. (2006). A bioluminescence assay to detect nitrification inhibitors released rom plant roots: a case study with Brachiaria humidicoa. Plant and Soil, 288, 101–112.CrossRefGoogle Scholar
Suding, K. N., Collins, S. L., Gough, L.et al. (2005). Functional- and abundance-based mechanisms explain diversity loss due to N fertilisation. Proceedings of the National Academy of Sciences of the USA, 102, 4387–4392.CrossRefGoogle Scholar
Sutton, M. A., Simpson, D., Levy, P. E.et al. (2008). Uncertainties in the relationship between atmospheric nitrogen deposition and forest carbon sequestration. Global Change Biology, 14, 2057–2063.CrossRefGoogle Scholar
Thomas, R. Q., Canham, C. D., Weathers, K. C. and Goodale, C. L. (2010). Increased tree carbon storage in response to nitrogen deposition in the US. Nature Geoscience, 3, 13–17.CrossRefGoogle Scholar
Tiedje, J. M. (1988). Ecology of denitrification and dissimilatory nitrate reduction to ammonium. In: Biology of Anaerobic Microorganisms, ed. Zehnder, A. J. B. John Wiley and Sons, New York: pp. 179–244.Google Scholar
Tiedje, J. M., Sexton, A. J., Myrold, D. D. and Robinson, J. A. (1982). Denitrification: ecological niches, competition and survival. Antonie van Leeuwenhoek, 48, 569–583.CrossRefGoogle Scholar
Tiessen, H., Stewart, J. W. and Bettany, J. R. (1982). Cultivation effects on the amounts and concentrations of carbon, nitrogen, and phosphorus in grassland soils. Agronomy Journal, 74, 831–835.CrossRefGoogle Scholar
Tietema, A. and Wessel, W. W. (1992). Gross nitrogen transformations in the organic layer of acid forest ecosystems subjected to increased atmospheric nitrogen input. Soil Biology and Biochemistry, 24, 943–950.CrossRefGoogle Scholar
Treseder, K. K. (2008). Nitrogen additions and microbial biomass: a meta-analysis of ecosystem studies. Ecology Letters, 11, 1111–1120.CrossRefGoogle ScholarPubMed
Trinsoutrot, I., Recous, S., Mary, B. and Nicolardot, B. (2000). C and N fluxes of decomposing 13C and 15N Brassica napus L.: effects of residue composition and N content. Soil Biology and Biochemistry, 32, 1717–1730.CrossRefGoogle Scholar
Vall, P. M. and Vidal, C. (1999). Nitrogen in Agriculture. ec.europa.eu/agriculture/envir/report/en/nitro_en/report.htmGoogle Scholar
Breemen, N., Boyer, E. W., Goodale, C. L.et al. (2002). Where did all the nitrogen go? Fate of nitrogen inputs to large watersheds in the northeastern U.S.A. Biogeochemistry, 57/58, 267–293.CrossRefGoogle Scholar
Cleemput, O. (1998). Subsoils: chemo- and biological denitrification, N2O and N2 emissions. Nutrient Cycling in Agroecosystems, 52, 187–194.CrossRefGoogle Scholar
Egmond, N. D., Bresser, A. H. M. and Bouwman, A. F. (2002). The European nitrogen case. Ambio, 31, 72–78.CrossRefGoogle ScholarPubMed
Vanmechelen, L., Groenemans, R. and Ranst, E. (1997). Forest Soil Conditions in Europe: Results of a Large-Scale Soil Survey. Brussels: EC, UN/ECE, Ministry of the Flemish Community.Google Scholar
Velthof, G., Barot, S., Bloem, J.et al. (2011). Nitrogen as a threat to European soil quality. In: The European Nitrogen Assessment, ed. Sutton, M. A., Howard, C. M., Erisman, J. W.et al. Cambridge University Press.Google Scholar
Verchot, L. V., Holmes, Z., Mulon, L., Groffman, P. M. and Lovett, G. M. (2001). Gross vs net rates of N mineralisation and nitrification as indicators of functional differences between forest types. Soil Biology and Biochemistry, 33, 1889–1901.CrossRefGoogle Scholar
Vinten, A. J. A., Vivian, B. J., Wright, F. and Howard, R. S. (1994). A comparative study of nitrate leaching from soils of differing textures under similar climatic and cropping conditions. Journal of Hydrology, 159, 197–213.CrossRefGoogle Scholar
Vitousek, P. M. and Howarth, R. W. (1991). Nitrogen limitation on land and in the sea: how can it occur?Biogeochemistry, 13, 87–115.CrossRefGoogle Scholar
Vitousek, P. M., Aber, J. D., Howarth, R. W.et al. (1997). Human alteration of the global nitrogen cycle: Sources and consequences. Ecological Applications, 7, 737–750.Google Scholar
Vitousek, P. M., Cassman, K., Cleveland, C.et al. (2002). Towards an ecological understanding of biological nitrogen fixation. Biogeochemistry, 57, 1–45.CrossRefGoogle Scholar
Wan, S., Hui, D. and Luo, Y. (2001). Fire effects on nitrogen pools and dynamics in terrestrial ecosystems: a meta-analysis. Ecological Applications, 11, 1349–1365.CrossRefGoogle Scholar
Watson, C. J. and Mills, C. L. (1998). Gross nitrogen transformations in grassland soils as affected by previous management intensity. Soil Biology and Biochemistry, 30, 743–753.CrossRefGoogle Scholar
Wesselink, L. G., Meiwes, K.-J., Matzner, E. and Stein, A. (1995). Long-term changes in water and soil chemistry in spruce and beech forests, Solling, Germany. Environmental Science and Technology, 29, 51–58.CrossRefGoogle ScholarPubMed
Wolf, B., Zheng, X., Brüggemann, N.et al. (2010). Grazing-induced reduction of natural nitrous oxide release from continental steppe. Nature, 464, 881–884.CrossRefGoogle ScholarPubMed
Wrage, N., Velthof, G. L., Beusichem, M. L. and Oenema, O. (2001). Role of nitrifier denitrification in the production of nitrous oxide. Soil Biology and Biochemistry, 33, 1723–1732.CrossRefGoogle Scholar
Yamulki, S., Harrison, R. M., Goulding, K. W. T. and Webster, C. P. (1997). N2O, NO and NO2 fluxes from a grassland: effect of soil pH. Soil Biology and Biochemistry, 29, 1199–120.CrossRefGoogle Scholar
Yanai, R. D., Stehman, S. V., Arthur, M. A.et al. (2003). Detecting change in forest floor carbon. Soil Science Society of America Journal, 67, 1383–1593.CrossRefGoogle Scholar
Zumft, W. G. (1997). Cell biology and molecular basis of denitrification. Micobiology and Molecular Biology Reviews, 61, 533–616.Google ScholarPubMed

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