Challenges in quantifying biosphere-atmosphere exchange of nitrogen species.
- Sutton, M.A.
- Nemitz, E.
- Erisman, J.W.
- Beier, C.
- Butterbach-Bahl, K.
- Cellier, P.
- Vries, W., de
- Cotrufo, F.
- Skiba, U.
- Marco, C., Di
- Jones, S.
- Laville, P.
- Soussana, J.F.
- Loubet, B.
- Twigg, M.
- 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.
- Emmet, B.A.
- Tietema, A.
- Penuelas, J.
- Kesik, M.
- Brueggemann, N.
- Pilegaard, K.
- Vesala, T.
- Campbell, C.L.
- Olesen, J.E.
- Dragosits, U.
- Theobald, M.R.
- Levy, P.
- Mobbs, D.C.
- Milne, R.
- Viovy, N.
- Vuichard, N.
- Smith, J.U.
- Smith, P.
- Bergamaschi, P.
- Fowler, D.
- Reis, S., Dos
DOIAbstract
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 cha...
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