Modeling the dynamic chemical interactions of atmospheric ammonia and other trace gases with measured leaf surface wetness in a managed grassland canopy

Burkhardt, J.; Flechard, C. R.; Gresens, F.; Mattsson, M. E.; Jongejan, P. A. C.; Erisman, J. W.; Weidinger, T.; Meszaros, R.; Nemitz, E.; Sutton, M. A.. 2008 Modeling the dynamic chemical interactions of atmospheric ammonia and other trace gases with measured leaf surface wetness in a managed grassland canopy. Biogeosciences Discussions, 5. 2505-2539.

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Abstract/Summary

Ammonia exchange fluxes between grassland and the atmosphere were modeled on the basis of stomatal compensation points and leaf surface chemistry, and compared with measured fluxes during the GRAMINAE intensive measurement campaign in spring 2000 near Braunschweig, Germany. Leaf wetness and dew chemistry in grassland were measured together with ammonia fluxes and apoplastic NH4+ and H+ concentration, and the data were used to apply, validate and further develop an existing model of leaf surface chemistry and ammonia exchange. The leaf surface water storage was calculated from measured leaf wetness data using an exponential parameterisation.

Item Type:	Article
Programmes:	CEH Programmes pre-2009 publications > Biogeochemistry > BG01 Measuring and modelling trace gas, aerosol and carbon > BG01.3 Nitroeurope NEU advanced flux network, fluxes pools and budgets
CEH Sections:	Billett
NORA Subject Terms:	Atmospheric Sciences
Date made live:	17 Feb 2009 14:58
URI:	http://nora.nerc.ac.uk/id/eprint/5466

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