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|  | General (cover page, content, contributors, etc.) | 
|  | Summary for Policy Makers | 
|  | Technical Summary | 
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 | Chapter 1: Introduction  Lead Author: Mark Sutton, Natural Environment Research Council, Centre for Ecology and Hydrology, Edinburgh, UK. | 
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| Part A - Nitrogen in Europe: the present position | 
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 | Chapter 2: The European nitrogen problem in a global perspective  Lead Author: Jan Willem Erisman, Energy Research Centre of the Netherlands (ECN), Biomass, Coal & Environmental Research. | 
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 | Chapter 3: Benefits of nitrogen for food, fibre and industrial production  Joint Lead Authors: Lars Stoumann Jensen & Jan K Schjoerring, University of Copenhagen. | 
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 | Chapter 4: Nitrogen in current European policies  Lead Author: Oene Oenema, Professor of 'Nutrient Management and soil fertility', in the Soil Quality section (Wageningen University), Program Leader of the Environmental Planning office / Agriculture - environment interactions Alterra, Research Institute of the Green Environment, The Netherlands | 
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 | Chapter 5: The need to integrate nitrogen science and policies  Lead Author: Mark Sutton, Natural Environment Research Council, Centre for Ecology and Hydrology, Edinburgh, UK. | 
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| Part B - Nitrogen processing in the biosphere | 
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 | Chapter 6: Nitrogen processes in terrestrial ecosystems Joint Lead Authors: Per Gunderson, Senior Scientist, Forest & Landscape Denmark & Klaus Butterbach-Bahl, Head of Research Group "Regionalisation of biogenic trace gas emissions", Institute for Meteorology and Climate Research, Germany | 
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 | Chapter 7: Nitrogen processes in aquatic ecosystems  Joint Lead Authors: Patrick Durand, Directeur de Recherche, UMR Sol-Agronomie Spatialisation, INRA-Agrocampus Rennes, France, Lutz Breuer, Institute for Landscape Ecology and Resources Management (ILR), Germany & Penny Johnes, University of Reading. | 
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 | Chapter 8: Nitrogen processes in coastal and marine ecosystems  Lead Author: Maren Voss, Head of group Stable Isotopes, Leibniz Institute for Baltic Research, Warnemünde, Germany. | 
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 | Chapter 9: Nitrogen processes in the atmosphere  Lead Author: Ole Hertel, Head of Section/Senior Researcher, Aarhus University, Denmark. | 
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| Part C - Dispersion, budgets and impacts of nitrogen on different scales  | 
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 | Chapter 10: Nitrogen flows in farming systems across Europe Lead Author: Steve Jarvis, University of Exeter. | 
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 | Chapter 11. Nitrogen flows and fate in rural landscapes Lead Author: Pierre Cellier, INRA Unité Mixte de Recherche INRA / AgroParisTech "Environnement et Grandes Cultures", France | 
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 |  Chapter 12. Nitrogen flows and fate in urban landscapes  Joint Lead Authors: Anastasia Svirejeva-Hopkins, Potsdam Institute for Climate Impact Research (PIK), Germany & Stefan Reis, Centre for Ecology and Hydrology, Edinburgh, UK. | 
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 | Chapter 13. Nitrogen flows from European watersheds to coastal marine waters Lead Author: Gilles Billen, UMR Sisyphe, CNRS/UPMC, France. | 
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 | Chapter 14: Atmospheric transport and deposition of nitrogen in Europe  Lead Author: David Simpson, EMEP MSC-W, Norwegian Meteorological Inst. & Chalmers University of Technology, Sweden. | 
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 | Chapter 15. Geographic variation in terrestrial nitrogen budgets across Europe  Lead Author: Wim de Vries, Alterra, Wageningen UR, The Netherlands | 
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 | Chapter 16: Integrating nitrogen fluxes at the European scale  Lead Author: Adrian Leip, Joint Research Centre, Institute for Environment and Sustainability, Climate Change Unit, Ispra, Italy. | 
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| Part D - Managing nitrogen in relation to key societal issues | 
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 | Chapter 17: Nitrogen as a threat to European water quality   Lead Author: Bruna Grizzetti, Joint Research Centre, Ispra, Italy. | 
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 | Chapter 18: Nitrogen as a threat to European air quality  Lead Authors: Peringe Grennfelt & John Munthe, IVL Swedish Environmental Research Institute Ltd Sweden. | 
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 | Chapter 19: Nitrogen as a threat to the European greenhouse balance  Lead Author: Klaus Butterbach-Bahl, Head of Research Group "Regionalisation of biogenic trace gas emissions", Institute for Meteorology and Climate Research, Germany. | 
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 | Chapter 20: Nitrogen as a threat to European terrestrial biodiversity  Lead Author: Nancy Dise, Environmental and Geographical Sciences, Manchester Metropolitan University, UK. | 
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 | Chapter 21: Nitrogen as a threat to European soil quality  Lead Author: Gerard Velthof, Soil Science Centre, ALTERRA - Research Institute for the Green World, The Netherlands. | 
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| Part E - European nitrogen policies and future challenges  | 
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 | Chapter 22. Costs and benefits of nitrogen in the environment  Lead Author: Corjan Brink & Hans van Grinsven, Senior Researcher, Dept. of Agriculture and Rural Areas, Netherlands Environmental Assessment Agency, The Netherlands. | 
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 | Chapter 23. Integrated approaches to nitrogen management  Lead Author: Oene Oenema, Professor of 'Nutrient Management and soil fertility', in the Soil Quality section (Wageningen University), Program Leader of the Environmental Planning office / Agriculture - environment interactions Alterra, Research Institute of the Green Environment, The Netherlands | 
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 | Chapter 24: Future scenarios of nitrogen in Europe  Lead Author: Wilfried Winniwarter, IIASA. | 
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 | Chapter 25: Coordinating European nitrogen policies between directives and international conventions  Lead Author: Keith Bull, CEH, UK. | 
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 | Chapter 26: Societal choice and communicating the European nitrogen challenge  Lead Author: David Reay, Lecturer in Carbon Management, School of GeoSciences, University of Edinburgh, UK. | 
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 | Glossary | 
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 | Index |