Meier, Matthias S.; Schader, Christian; Berner, Alfred and Gattinger, Andreas (2012) Modelling N2O emissions from organic fertilisers for LCA inventories. Paper at: 8th International Conference on Life Cycle Assessment in the Agri-Food Sector, Saint-Malo, France, 1-4 October 2012. [Completed]
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Summary
Apart from mineral fertilisers, organic fertilisers act mainly via the soil C-N pool in order to provide available nitrogen to plants. This different mode of action is not reflected so far in the current IPCC N2O emission model. Here we propose a simple model to calculate N2O emissions from organic fertilisers and plant residues. It considers the long-term immobilisation of N within stable organic matter in the soil as well as the mineralisation of additional N from the soil pool. A first test with field data showed reliable simulations of measured N2O emissions. By comparing values generated by our model with values generated by the IPCC model we show that the IPCC model may overestimate emissions from organic fertilisers. Therefore, within LCA inventories modelling of soil borne N2O emissions from organic fertilisers and crop residues should consider the different dynamics of N via the C-N pool in the soil.
EPrint Type: | Conference paper, poster, etc. |
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Type of presentation: | Paper |
Keywords: | soil borne nitrous oxide emissions, agricultural inventory data, organic fertilisers, crop residues, Sozioökonomie, Life cycle assessment, Ökobilanzierung |
Agrovoc keywords: | Language Value URI English fertilisers -> fertilizers http://aims.fao.org/aos/agrovoc/c_2867 |
Subjects: | Crop husbandry > Composting and manuring Environmental aspects > Air and water emissions |
Research affiliation: | Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Society > Rural sociology Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Sustainability > Climate |
Deposited By: | Schader, Dr. Christian |
ID Code: | 24707 |
Deposited On: | 25 Nov 2013 22:16 |
Last Modified: | 13 Nov 2023 08:21 |
Document Language: | English |
Status: | Unpublished |
Refereed: | Not peer-reviewed |
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