| Literature DB >> 17604887 |
M A Sutton1, E Nemitz, J W Erisman, C Beier, K Butterbach Bahl, P Cellier, W de Vries, F Cotrufo, U Skiba, C Di Marco, S Jones, P Laville, J F Soussana, B Loubet, M Twigg, D Famulari, J Whitehead, M W Gallagher, A Neftel, C R Flechard, B Herrmann, P L Calanca, J K Schjoerring, U Daemmgen, L Horvath, Y S Tang, B A Emmett, A Tietema, J Peñuelas, M Kesik, N Brueggemann, K Pilegaard, T Vesala, C L Campbell, J E Olesen, U Dragosits, M R Theobald, P Levy, D C Mobbs, R Milne, N Viovy, N Vuichard, J U Smith, P Smith, P Bergamaschi, D Fowler, S Reis.
Abstract
Recent research in nitrogen exchange with the atmosphere has separated research communities according to N form. The integrated perspective needed to quantify the net effect of N on greenhouse-gas balance is being addressed by the NitroEurope Integrated Project (NEU). Recent advances have depended on improved methodologies, while ongoing challenges include gas-aerosol interactions, organic nitrogen and N(2) fluxes. The NEU strategy applies a 3-tier Flux Network together with a Manipulation Network of global-change experiments, linked by common protocols to facilitate model application. Substantial progress has been made in modelling N fluxes, especially for N(2)O, NO and bi-directional NH(3) exchange. Landscape analysis represents an emerging challenge to address the spatial interactions between farms, fields, ecosystems, catchments and air dispersion/deposition. European up-scaling of N fluxes is highly uncertain and a key priority is for better data on agricultural practices. Finally, attention is needed to develop N flux verification procedures to assess compliance with international protocols.Entities:
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Year: 2007 PMID： 17604887 DOI： 10.1016/j.envpol.2007.04.014
Source DB: PubMed Journal: Environ Pollut ISSN： 0269-7491 Impact factor: 8.071