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Gewählte Master / Diploma Thesis:

Rosa Maria Ronay-Matschnig (2022): Einfluss der Klimaveränderung auf den Körnermaisanbau im Kärntner Becken.
Master / Diploma Thesis - Institut für Pflanzenbau, BOKU-Universität für Bodenkultur, pp 156. UB BOKU obvsg

Data Source: ZID Abstracts
The global average temperature has increased steadily since the beginning of industrialization.The overall environmental impact of this climate change depends on the location. Some consequences are longer periods of drought and sudden heavy rain or hail events. Agriculture is a sector that is more likely to feel the implications of climate change in the form of yield losses or peak yields. Many native crops are struggling to adapt to the changing climate, making plants which are better adapted to climate change, such as corn, very important. The aim of this master's thesis was to investigate and evaluate the influence of climate change on grain maize in the Carinthian Basin (“Kärntner Becken”) using qualitative expert interviews. As a result, five experts in the field of maize production were personally interviewed and the interviews were evaluated using Mayring's structuring content analysis. They were conducted with the help of a guideline in order to obtain data on parameters such as maturity number, sowing date, frequency of storm events and biotic damage in correlation with climate change. For a better overview, a category system with a coding scheme was defined inductively (based on the source material) and the results of the interviews were later assigned to the appropriate category. All experts were able to confirm that the number of ripeness has increased due to the warmer climate and that the sowing date was brought forward as a consequence. The disadvantage of higher maturity numbers and earlier sowing dates is the risk of late and early frost and the resulting implications (growth and ripening problems). All experts emphasized that yields have risen steadily since 2000, however, longer periods of drought and storm events have lead to fluctuations in yields in recent years. An increase in severe weather events such as periods of drought, hail and heavy rain events was observed by all experts, but a more frequent occurrence of biotic damage (diseases, weeds) could not be confirmed by the majority. Considering the results, it is recommended to carry out further statistical surveys regarding climate data and yield parameters in the future, and to deepen the research in this field to find more correlations between climate changes and maize yield.

Beurteilende*r: Liebhard Peter

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