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Nitrogen deposition and Natura 2000 / W. Kevin Hicks (2011) 

Public Citation Titre : Nitrogen deposition and Natura 2000 : science and practice in determining environmental impacts Type de document : Électronique Auteurs : W. Kevin Hicks ; C.P. Whitfield ; W.J. Bealey ; Mark A. Sutton Editeur : COST office Année de publication : 2011 Importance : 293 p. ISBN/ISSN/EAN : 978-91-86125-23-3 Résumé : This book reviews the evidence from across Europe that confirms nitrogen deposition as a major threat to European biodiversity, especially on the Natura 2000, including sensitive habitats and species listed under the Habitats Directive (92/43/EEC). It documents the information presented and discussed at an international workshop on ‘Natura 2000 and Nitrogen Deposition’, held in Brussels in May 2009, to review new evidence of nitrogen impacts, develop best practices when conducting assessments, and recommend options for consideration in future policy development. The workshop was attended by 73 scientists, conservation practitioners and policy makers from 13 countries: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Portugal, Spain, Sweden, Netherlands and the UK. Delegates included representatives from the European Commission DG Environment, and Government departments from EU member states. The workshop focused on 5 main themes: 1. Comparison of impact assessment and decision making approaches to determine the N deposition impacts of plans and projects in the context of Habitats Directive Article 6.3 obligations. 2. Comparison of approaches to assessing and reporting N deposition impacts on conservation status (Habitats Directive Article 17) and discussion of harmonising approaches for future reporting rounds. 3. New science on the effects of N deposition and concentrations on Natura 2000 sites, including bio-indicators, effects of N-form (e.g., NHx vs NOy), and the relationships between critical thresholds and biodiversity loss. 4. Approaches to modelling local N deposition and concentrations in the regulatory context of Natura 2000. 5. Options for future policy development to manage and mitigate the impacts of N deposition effects on the Natura 2000 network. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150038 Hicks, W. Kevin, Whitfield, C.P., Bealey, W.J., Sutton, Mark A. , 2011. Nitrogen deposition and Natura 2000 : science and practice in determining environmental impacts. COST office, [S.l.]. 293 pp.

A pour extrait

• Impact of nitrogen deposition on species richness of calcareous grasslands in Europe - some preliminary results / Didier Alard (2011) 

Documents numériques

Consultable Livre (2011) Adobe Acrobat PDF

The global nitrogen cycle in the twentyfirst century / David Fowler in Philosophical Transactions Royal Society London B, 368 (2013) 

Public Citation [article]  inPhilosophical Transactions Royal Society London B > 368 (2013) Titre : The global nitrogen cycle in the twentyfirst century Type de document : Électronique Auteurs : David Fowler ; Mhairi Coyle ; Ute Skiba ; Mark A. Sutton ; J. Neil Cape ; Stefan Reis ; Lucy J. Sheppard ; Alan Jenkins ; Bruna Grizzetti ; James N. Galloway ; Peter Vitousek ; Allison Leach ; Alexander F. Bouwman ; Klaus Butterbach-Bahl ; Frank Dentener ; David Stevenson ; Marcus Amann ; Maren Voss Année de publication : 2013 Langues : Anglais (eng) Résumé : Global nitrogen fixation contributes 413 Tg of reactive nitrogen (Nr) to terrestrial and marine ecosystems annually of which anthropogenic activities are responsible for half, 210 Tg N. The majority of the transformations of anthropogenic Nr are on land (240 Tg N yr−1) within soils and vegetation where reduced Nr contributes most of the input through the use of fertilizer nitrogen in agriculture. Leakages from the use of fertilizer Nr contribute to nitrate (NO3−) in drainage waters from agricultural land and emissions of trace Nr compounds to the atmosphere. Emissions, mainly of ammonia (NH3) from land together with combustion related emissions of nitrogen oxides (NOx), contribute 100 Tg N yr−1 to the atmosphere, which are transported between countries and processed within the atmosphere, generating secondary pollutants, including ozone and other photochemical oxidants and aerosols, especially ammonium nitrate (NH4NO3) and ammonium sulfate (NH4)2SO4. Leaching and riverine transport of NO3 contribute 40–70 Tg N yr−1 to coastal waters and the open ocean, which together with the 30 Tg input to oceans from atmospheric deposition combine with marine biological nitrogen fixation (140 Tg N yr−1) to double the ocean processing of Nr. Some of the marine Nr is buried in sediments, the remainder being denitrified back to the atmosphere as N2 or N2O. The marine processing is of a similar magnitude to that in terrestrial soils and vegetation, but has a larger fraction of natural origin. The lifetime of Nr in the atmosphere, with the exception of N2O, is only a few weeks, while in terrestrial ecosystems, with the exception of peatlands (where it can be 102–103 years), the lifetime is a few decades. In the ocean, the lifetime of Nr is less well known but seems to be longer than in terrestrial ecosystems and may represent an important long-term source of N2O that will respond very slowly to control measures on the sources of Nr from which it is produced. Lien pérenne : DOI : 10.1098/rstb.2013.0164 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=143552 Fowler, David, Coyle, Mhairi, Skiba, Ute, Sutton, Mark A., Cape, J. Neil, Reis, Stefan, Sheppard, Lucy J., Jenkins, Alan, Grizzetti, Bruna, Galloway, James N., Vitousek, Peter, Leach, Allison, Bouwman, Alexander F., Butterbach-Bahl, Klaus, Dentener, Frank, Stevenson, David, Amann, Marcus, Voss, Maren 2013 The global nitrogen cycle in the twentyfirst century. Philosophical Transactions Royal Society London B, 368.

Documents numériques

Consultable Article (2013) URL