3 results
23 - Developing integrated approaches to nitrogen management
- from Part V - European nitrogen policies and future challenges
-
- By Oene Oenema, Wageningen University and Research Centre, Joost Salomez, Flemish Government, Cristina Branquinho, Universidade de Lisboa, Faculdade de Ciências, Michaela Budňáková, Ministry of Agriculture of the Czech Republic, Pavel Čermák, Central Institute for Supervising and Testing in Agriculture, Markus Geupel, Federal Environment Agency, Germany, Penny Johnes, University of Reading, Chris Tompkins, Independent consultant, Till Spranger, Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, Jan Willem Erisman, Energy Research Centre of the Netherlands, Christian Pallière, Fertilizers Europe, Luc Maene, International Fertilizer Industry Association, Rocio Alonso, Rob Maas, Netherlands Environmental Assessment Agency, Jacob Magid, Copenhagen University, Mark A. Sutton, Centre for Ecology and Hydrology, Hans van Grinsven, Netherlands Environmental Assessment Agency
- Edited by Mark A. Sutton, NERC Centre for Ecology and Hydrology, UK, Clare M. Howard, NERC Centre for Ecology and Hydrology, UK, Jan Willem Erisman, Gilles Billen, Albert Bleeker, Peringe Grennfelt, Hans van Grinsven, Bruna Grizzetti
-
- Book:
- The European Nitrogen Assessment
- Published online:
- 16 May 2011
- Print publication:
- 14 April 2011, pp 541-550
-
- Chapter
- Export citation
-
Summary
Executive summary
Nature of the problem
Reactive nitrogen (Nr) occurs in different forms, arises from a wide range of activities and sources, and leads to environmental impacts over different spatial and temporal scales.
Integrated approaches to N management are anticipated to provide more effective (larger decreases in unwanted emissions) and /or more efficient (less side effects, less costs) policy measures than policy measures based on single sources and pollutant species.
There are many notions of integrated approaches, but as yet little consensus about the best integrated approaches. There is also little quantitative empirical evidence of the performance of these approaches in practice.
The pitfall of integrated approaches is that they may be more complex to agree, leading to a delayed implementation.
Approaches
Based on recent literature and a discussion among experts, the present chapter provides a conceptual framework for developing integrated approaches to N management.
Whilst discussing the framework, various examples of existing partially integrated N management approaches have been considered.
A package of key actions in different sectors is envisaged that, together, should contribute to further developing integrated approaches to N management in the future
3 - Benefits of nitrogen for food, fibre and industrial production
- from Part I - Nitrogen in Europe: the present position
-
- By Lars Stoumann Jensen, University of Copenhagen, Jan K. Schjoerring, University of Copenhagen, Klaas W. van der Hoek, National Institute for Public Health and the Environment, Hanne Damgaard Poulsen, Aarhus University, John F. Zevenbergen, TNO Defence, Security and Safety, Christian Pallière, Fertilizers Europe, Joachim Lammel, Yara International Centre, Frank Brentrup, Yara International Centre, Age W. Jongbloed, Wageningen UR Livestock Research, Jaap Willems, Netherlands Environmental Assessment Agency, Hans van Grinsven, Netherlands Environmental Assessment Agency
- Edited by Mark A. Sutton, NERC Centre for Ecology and Hydrology, UK, Clare M. Howard, NERC Centre for Ecology and Hydrology, UK, Jan Willem Erisman, Gilles Billen, Albert Bleeker, Peringe Grennfelt, Hans van Grinsven, Bruna Grizzetti
-
- Book:
- The European Nitrogen Assessment
- Published online:
- 16 May 2011
- Print publication:
- 14 April 2011, pp 32-61
-
- Chapter
- Export citation
-
Summary
Executive summary
Nature of the issue
Reactive nitrogen (Nr) has well-documented positive effects in agricultural and industrial production systems, human nutrition and food security. Limited Nr supply was a key constraint to European food and industrial production, which has been overcome by Nr from the Haber–Bosch process.
Given the huge diversity in Nr uses, it becomes a major challenge to summarize an overall inventory of Nr benefits. This full list of benefits needs to be quantified if society is to develop sound approaches to optimize Nr management, balancing the benefits against the environmental threats.
Approaches
When reviewing trends in European Nr production rates, including those from chemical and biological fixation processes, and the consumption of this Nr in human activities, agriculture is by far the largest sector driving Nr creation.
Particular attention has been given to relationships between N application rates, productivity and quality of products from major crops and livestock types, including consideration of the mechanisms underlying variations in N response/outputs and the derived impacts on land use and land requirements.
Key findings/state of knowledge
The economic value of N benefits to the European economy is very substantial. Almost half of the global food can be produced because of Nr from the Haber–Bosch, and cereal yields in Europe without fertilizer would only amount to half to two-thirds of those with fertilizer application at economically optimal rates.
[…]
24 - Future scenarios of nitrogen in Europe
- from Part V - European nitrogen policies and future challenges
-
- By Wilfried Winiwarter, International Institute for Applied Systems Analysis, Jean-Paul Hettelingh, National Institute for Public Health and the Environment, Alex F. Bouwman, Netherlands Environmental Assessment Agency, Wim de Vries, Wageningen University and Research Centre, Jan Willem Erisman, Energy Research Centre of the Netherlands, James Galloway, University of Virginia, Zbigniew Klimont, International Institute for Applied Systems Analysis, Allison Leach, University of Virginia, Adrian Leip, European Commission Joint Research Centre, Christian Pallière, Fertilizers Europe, Uwe A. Schneider, KlimaCampus, Hamburg University, Till Spranger, Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, Mark A. Sutton, Centre for Ecology and Hydrology, Anastasia Svirejeva-Hopkins, Potsdam Institute for Climate Impact Research, Klaas W. van der Hoek, National Institute for Public Health and the Environment, Peter Witzke, EuroCARE GmbH
- Edited by Mark A. Sutton, NERC Centre for Ecology and Hydrology, UK, Clare M. Howard, NERC Centre for Ecology and Hydrology, UK, Jan Willem Erisman, Gilles Billen, Albert Bleeker, Peringe Grennfelt, Hans van Grinsven, Bruna Grizzetti
-
- Book:
- The European Nitrogen Assessment
- Published online:
- 16 May 2011
- Print publication:
- 14 April 2011, pp 551-569
-
- Chapter
- Export citation
-
Summary
Executive summary
Nature of the problem
The future effects of nitrogen in the environment will depend on the extent of nitrogen use and the practical application techniques of nitrogen in a similar way as in the past. Projections and scenarios are appropriate tools for extrapolating current knowledge into the future. However, these tools will not allow future system turnovers to be predicted.
Approaches
In principle, scenarios of nitrogen use follow the approaches currently used for air pollution, climate, or ecosystem projections. Short-term projections (to 2030) are developed using a ‘baseline’ path of development, which considers abatement options that are consistent with European policy. For medium-term projections (to 2050) and long-term projections, the European Nitrogen Assessment (ENA) applies a ‘storyline’ approach similar to that used in the IPCC SRES scenarios. Beyond 2050 in particular, such storylines also take into account technological and behavioral shifts.
Key findings/state of knowledge
The ENA distinguishes between driver-oriented and effect-oriented factors determining nitrogen use. Parameters that cause changes in nitrogen fixation or application are called drivers. In a driver-based approach, it is assumed that any variation of these parameters will also trigger a change in nitrogen pollution. In an effect-based approach, as the adverse effects of nitrogen become evident in the environment, introduction of nitrogen abatement legislation requiring the application of more efficient abatement measures is expected. This approach needs to rely on a target that is likely to be maintained in the future (e.g. human health). Nitrogen abatement legislation based on such targets will aim to counter any growth in adverse environmental effects that occur as a result of increased nitrogen application.
[…]