| Registro completo |
| Provedor de dados: |
Organic Eprints
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| País: |
Germany
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| Título: |
The impact of long-term organic farming on soil-derived greenhouse gas emissions
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| Autores: |
Skinner, Colin
Gattinger, Andreas
Krauss, Maike
Krause, Hans-Martin
Mayer, Jochen
van der Heijden, Marcel G. A.
Mäder, Paul
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| Data: |
2019
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| Ano: |
2019
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| Palavras-chave: |
"Organics" in general
Specific methods
Air and water emissions
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| Resumo: |
Agricultural practices contribute considerably to emissions of greenhouse gases. so far, knowledge on the impact of organic compared to non-organic farming on soil-derived nitrous oxide (N2o) and methane (CH4) emissions is limited. We investigated N2o and CH4 fluxes with manual chambers during 571 days in a grass-clover– silage maize – green manure cropping sequence in the long-term field trial “DOK” in Switzerland. We compared two organic farming systems – biodynamic (BIODYN) and bioorganic (BIOORG) – with two non-organic systems – solely mineral fertilisation (CONMIN) and mixed farming including farmyard manure (CONFYM) – all reflecting Swiss farming practices–together with an unfertilised control (NOFERT). We observed a 40.2% reduction of N2o emissions per hectare for organic compared to non-organic systems. In contrast to current knowledge, yield-scaled cumulated N2o emissions under silage maize were similar between organic and non-organic systems. Cumulated on area scale we recorded under silage maize a modest CH4 uptake for BIODYN and CONMIN and high CH4emissions for CONFYM. We found that, in addition to N input, quality properties such as pH, soil organic carbon and microbial biomass significantly affected N2o emissions. this study showed that organic farming systems can be a viable measure contributing to greenhouse gas mitigation in the agricultural sector.
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| Tipo: |
Journal paper
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| Idioma: |
Inglês
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| Identificador: |
http://orgprints.org/36350/1/skinner-etal-2019-ScientificReports-article-s41598-018-38207-w.pdf
Skinner, Colin; Gattinger, Andreas; Krauss, Maike; Krause, Hans-Martin; Mayer, Jochen; van der Heijden, Marcel G. A. and Mäder, Paul (2019) The impact of long-term organic farming on soil-derived greenhouse gas emissions. Scientific Reports, 9 (1702), pp. 1-10.
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| Relação: |
http://orgprints.org/36350/
https://doi.org/10.1038/s41598-018-38207-w
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| Formato: |
application/pdf
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