Dynamics of ammonia exchange with cut grassland: Synthesis of results and conclusions of the GRAMINAE Integrated ExperimentShow others and affiliations
2009 (English)In: Biogeosciences, ISSN 1726-4170, E-ISSN 1726-4189, Vol. 6, no 12, p. 2907-2934Article in journal (Refereed) Published
Abstract [en]
Improved data on biosphere-atmosphere exchange are fundamental to understanding the production and fate of ammonia (NH3) in the atmosphere. The GRAMINAE Integrated Experiment combined novel measurement and modelling approaches to provide the most comprehensive analysis of the interactions to date. Major intercomparisons of micrometeorological parameters and NH3 flux measurements using the aerodynamic gradient method and relaxed eddy accumulation (REA) were conducted. These showed close agreement, though the REA systems proved insufficiently precise to investigate vertical flux divergence. Grassland management had a large effect on fluxes: emissions increased after grass cutting (−50 to 700 ng m-2 s-1 NH3) and after N-fertilization (0 to 3800 ng m-2 s -1) compared with before the cut (−60 to 40 ng m-2 s -1). © Author(s) 2009.
Place, publisher, year, edition, pages
Goettingen: Nicolaus Copernicus University Press, 2009. Vol. 6, no 12, p. 2907-2934
Keywords [en]
aerodynamics, agricultural emission, agricultural management, ammonia, biological production, grass, grassland, ion exchange, micrometeorology
National Category
Meteorology and Atmospheric Sciences
Identifiers
URN: urn:nbn:se:hh:diva-39346DOI: 10.5194/bg-6-2907-2009ISI: 000273060100012Scopus ID: 2-s2.0-77955458448OAI: oai:DiVA.org:hh-39346DiVA, id: diva2:1331161
Note
Funders: European Commission (DG Research), UK Defra (AEQ Division)
2019-06-262019-06-262020-01-24Bibliographically approved