University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Michael Siegfried Josef Bruneder
(2020):
Untersuchung der Eigenschaften von Substratkomponenten für Fassadenbegrünungen unter besonderer Berücksichtigung der Bewässerung mit Grauwasser und der ökologischen Verträglichkeit einzelner Bestandteile.
Master / Diploma Thesis - Institut für Ingenieurbiologie und Landschaftsbau (IBLB),
BOKU-Universität für Bodenkultur,
pp 138.
UB BOKU
obvsg
- Abstract:
- In order to maintain a high quality of life, cities will be even more dependent on green infrastructure in the future, especially considering the global climatic changes. Integrating green spaces into heavily sealed urban areas is a challenge that has accompanied urban planning for decades. Green roofs and facades have enormous potential for positively contributing to the aesthetics, biodiversity, ecosystem services as well as the load removal of the canal system. They are an important instrument for bringing back nature to the cities and making urban space more resilient and attractive. There are many different systems for greening facades, but unfortunately there are no long-term studies on essential aspects. The aim of this paper is to find out whether the two substrate mixtures developed at BOKU University are suitable as a vegetation technical substrate for vertical greenery systems and how they can be improved in terms of their functions. Important parameters must be identified and afterwards be compared with already existing guidelines and engineer standards in order to ensure their suitability. The substrates were examined in the laboratory for the pore volume, the water capacity, the air capacity, the pH-value, the gain of the water rise and the grain size distribution. Additionally, selected tests on greywater were repeated. Furthermore, the volumetric water content was monitored in a living wall irrigated with greywater as well as with tap water for serval weeks. The results show that both mixtures are suitable for a substrate for vertical greenery systems, even though potential for further improvement is given. The substrates should be optimized by adapting the proportions of the mixture. The nutrient supply is weak in both substrate mixtures. The addition of small amounts of organic material can be taken into consideration.
- Beurteilende(r): Pitha Ulrike
- 1.Mitwirkender: Zluwa Irene
- 2.Mitwirkender: Spörl Philipp