University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Jacqueline Steinberger
(2020):
ERFASSUNG DER NATÜRLICHEN RESILIENZ VON ACKERBÖDEN IN ÖSTERREICH.
Master / Diploma Thesis - Institut für Bodenforschung (IBF),
BOKU-Universität für Bodenkultur,
pp 69.
UB BOKU
obvsg
FullText
- Abstract:
- For decades the available arable land has been decreasing due to increasing land use for urban development in Austria. Due to the lack of a legal framework for soil protection, a lack of consideration of soil as a resource in planning decisions and a lack of awareness raising endanger the production function of food and thus food security in Austria. In this work, agricultural soils in Austria are analysed, taking into account their natural resistance to changes in environmental conditions, in order to determine their potential for resilient production. GIS analyses, based on selected indicators, allow the estimation of land use for different purposes. This allows the identification which arable land is suitable for sustainable agricultural production. This is done by means of an already developed indicator scheme, which considers intrinsic soil properties such as slope inclination, thoroughness, clay and silt content as well as important properties such as organic carbon content, pH value and cation exchange capacity (CEC). For the analysis the digital soil map (eBOD) of Austria was used. The results show that, based on the topographical indicators, approx. 33% of the analysed soils have a high resilience to negative environmental impacts. In 58% of the areas, at least one soil indicator does not provide sufficient resilience. Approximately 9% of the areas analysed show average soil resilience. According to the evaluation scheme, only 0.2% of the areas analysed show such low resilience that for example the conversion to grassland would be viable. The results were additionally reviewed considering the so called "Ackerwert" according to the digital soil map. The evaluation of the indicator set tends to be similar to that of the resilience classification. An essential difference lies in the additional assessment of the existing water conditions and soil fertility. Potential savings in fertilisers and artificial irrigation can thus be identified.
- Beurteilende(r): Blum Winfried E.H.
- 1.Mitwirkender: Schiefer Jasmin