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Vergleich von Treibhausgasemissionen unterschiedlich wirtschaftender Modellbetriebe im Alpenvorland

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Kasper, Martina; Freyer, Bernhard; Schmid, Harald; Hülsbergen, Kurt-Jürgen; Amon, Barbara and Friedel, Jürgen K. (2013) Vergleich von Treibhausgasemissionen unterschiedlich wirtschaftender Modellbetriebe im Alpenvorland. Paper at: 12. Wissenschaftstagung Ökologischer Landbau, Rheinische Friedrich-Wilhelms-Universität, Bonn, 5. bis 8. März 2013.

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Summary

About 8.8 % (UBA 2010) of the total greenhouse gas (GHG) emissions in Austria are caused by agricultural practices. Besides the release of climate relevant gases, C-sequestration occurs depending on the natural conditions and farming system.
The focus of the project was to describe the GHG-emissions and sinks of the most relevant farming types, both organic and conventional, within the main production areas in Austria. Results of an intensively cultivated region in the North-West are presented. Based on the input data, six model-farms were created with the programme REPRO, whereby forage production, cash crops and refinement systems were considered.
All systems had a positive humus balance and sequestered carbon in the soil, especially forage production systems. Due to the use of mineral fertilizers, a higher N-balance occurred in all conventional systems. Organic systems on the other hand were able to utilize nutrients to a wider extent. The GHG-potential related to area was at least 29 % higher at conventional compared to organic systems, whereby N2O-emissions, calculated according to IPCC 1997, were most relevant. Differences were reduced and results even reversed calculating the GHG-potential per product unit. When calculating the N2O-Emissions with an increased N2O emission factor of 2.5 % of N input in a scenario, the emissions increased almost proportionally.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Treibhausgasemissionen, Betriebsformen, Modell REPRO, N2O-Szenario
Subjects: Environmental aspects > Air and water emissions
Research affiliation: International Conferences > 2013: Scientific Conference Organic Agriculture > Plant & soil
Related Links:http://www.wissenschaftstagung.de/, https://www.verlag-koester.de/index.php?id=114&tx_fbmagento
Deposited By: Kasper, DI Martina
ID Code:21469
Deposited On:09 Sep 2013 12:33
Last Modified:11 Nov 2013 17:16
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 12. Wissenschaftstagung erschienen.
Dr. D. Neuhoff, C. Stumm, S. Ziegler u.a. (Hrsg.)
Beiträge zur 12. Wissenschaftstagung Ökologischer Landbau
Ideal und Wirklichkeit: Perspektiven ökologischer Landbewirtschaftung
Erscheinungsjahr: 2013
ISBN-13: 9783895748158
Verlag Dr. Köster, Berlin

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