Challenges in quantifying biosphere - atmosphere exchange of nitrogen species

Sutton, M.A. ORCID: https://orcid.org/0000-0002-6263-6341; Nemitz, E. ORCID: https://orcid.org/0000-0002-1765-6298; Erisman, J.W.; Beier, C.; Butterbach Bahl, K.; Cellier, P.; de Vries, W.; Cotrufo, F.; Skiba, U. ORCID: https://orcid.org/0000-0001-8659-6092; Di Marco, C.; Jones, S.; Laville, P.; Soussana, J. F.; Loubet, B.; Twigg, M. ORCID: https://orcid.org/0000-0002-5462-3348; Famulari, D.; Whitehead, J.; Gallagher, M. W.; Neftel, A.; Flechard, C. R.; Herrmann, B.; Calanca, P. L.; Schjoerring, J. K.; Daemmgen, U.; Horvath, L.; Tang, Y. S.; Emmett, B. A. ORCID: https://orcid.org/0000-0002-2713-4389; Tietema, A.; Penuelas, J.; Kesik, M.; Brueggemann, N.; Pilegaard, K.; Vesala, T.; Campbell, C. L.; Olesen, J. E.; Dragosits, U. ORCID: https://orcid.org/0000-0002-9283-6467; Theobald, M. R.; Levy, P. ORCID: https://orcid.org/0000-0002-8505-1901; Mobbs, D. C. ORCID: https://orcid.org/0000-0001-5842-2247; Milne, R.; Viovy, N.; Vuichard, N.; Smith, J. U.; Smith, P.; Bergamaschi, P.; Fowler, D.; Reis, S. ORCID: https://orcid.org/0000-0003-2428-8320. 2007 Challenges in quantifying biosphere - atmosphere exchange of nitrogen species. Environmental Pollution, 150. 125-139. 10.1016/j.envpol.2007.04.014

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Abstract/Summary

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 N2 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 N2O, NO and bi-directional NH3 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.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1016/j.envpol.2007.04.014
Programmes:	CEH Programmes pre-2009 publications > Biogeochemistry
UKCEH and CEH Sections/Science Areas:	Billett (to November 2013) Emmett
ISSN:	0269-7491
Format Availability:	Electronic, Print
Additional Keywords:	nitrogen, fluxes, micrometeorology, modelling, landscape, regional up-scaling
NORA Subject Terms:	Ecology and Environment Atmospheric Sciences Chemistry
Date made live:	13 Nov 2007 16:19 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/1201

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