Author(s)

E Nemitz, M.A. Sutton, J.K. Schjorring, S. Husted, R San-Jose, A. Neftel and A. Gut

Abstract

Canopy Cycling of Ammonia in an Oilseed Rape Canopy A contribution to subproject BIATEX-2. E Nemitz\ M.A. Sutton\ J.K. Schj0rring^ S. Hustecf, R San-Jose^, A Neftel* and A Gut* ' Institute of Terrestrial Ecology (ITE), Edinburgh Research Station, Bush Estate, Penicuik, Midlothian, EH26 OQB, Scotland * RVAU, Copenhagen, Denmark * University of Madrid, Spain ' IUL/FAL Liebefeld-Berne, Switzerland Introduction and methods As part of the EC 'EXAMINE' project the net exchange of NHs with an oilseed rape (Brassica napus) canopy was investigated during a 4-week campaign at North Berwick, 40 km east of Edinburgh, Scotland (Sutton et a/., 1996). These measurements were accompanied by investigations into the canopy cycling of NHs to identify and quantify the sources and sinks within the canopy and develop a mechanistic understanding of

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