The extent of methane (CH4) emissions after fertilisation of grassland with digestate

Methane (CH 4 ) emissions following surface application of liquid digestate were measured on agricultural grassland. The total extent of emissions was estimated by curve fitting and integration. The temporal pattern of the CH 4 efflux was well described by fitting double-phase decay curves ( ). Tota...

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Bibliographic Details
Published in:Biology and fertility of soils 2012-11, Vol.48 (8), p.981-985
Main Authors: Dieterich, B., Finnan, J., Frost, P., Gilkinson, S., Müller, C.
Format: Article
Language:English
Subjects:
Agriculture
Biogas
Biomedical and Life Sciences
Climate change
Emissions
Farm buildings
Global warming
Grasslands
Greenhouse gases
Life Sciences
Methane
Nitrous oxide
Short Communication
Soil Science & Conservation
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Summary:Methane (CH 4 ) emissions following surface application of liquid digestate were measured on agricultural grassland. The total extent of emissions was estimated by curve fitting and integration. The temporal pattern of the CH 4 efflux was well described by fitting double-phase decay curves ( ). Total emissions were found to be small in all cases (7.3–11.5 mg CH 4  L −1 ). From a greenhouse gas perspective, this level of CH 4 emissions represents only a few per cent of the global warming potential of the nitrous oxide emissions which may occur following application of the digestate.
ISSN:0178-2762
1432-0789
DOI:10.1007/s00374-012-0714-1