Emissions of NO and N2O from soils

Skiba, Ute ORCID:; Fowler, David; Smith, Keith. 1994 Emissions of NO and N2O from soils. Environmental Monitoring and Assessment, 31 (1-2). 153-158.

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Nitric oxide (NO) and nitrous oxide (N2O) fluxes were measured from agricultural, forest and moorland environments, using chamber techniques. Maximum emissions of NO and N2O were measured from the agricultural soils shortly after fertiliser application (7 ng NO-N m–2 s–1 and 91 ng N2O-N m–2 s–1). For the non-agricultural soils the NO flux ranged from –0.3 to 0.5 ng NO-N m–2 s–1 and the N2O flux ranged from 1 to 2.7 ng N2O-N m–2 s–1. Emissions, however, were increased 2 to 7 fold when N deposition (uplands) and N fixation (alder plantations) contributed to the pool of soil available N. The best predictors of the NO emission were soil NO 3 – and soil temperature, accounting for 60% of the variability observed. The prediction of N2O was less successful. Only 30% of the variability could be explained by the soil NO 3 – and the soil moisture content, soil temperature did not have a significant effect on the N2O emission.

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: CEH Programmes pre-2009 publications > Biogeochemistry
UKCEH and CEH Sections/Science Areas: _ Pre-2000 sections
ISSN: 0167-6369
Additional Information. Not used in RCUK Gateway to Research.: Also published in: Non-CO2 greenhouses: why and how to control? edited by J.van Ham, L.J.H.M.Janssen & R.L.Swart. Dordrecht: Kluwer.
NORA Subject Terms: Meteorology and Climatology
Ecology and Environment
Atmospheric Sciences
Date made live: 22 Jul 2009 12:33 +0 (UTC)

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