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Research project (§ 26 & § 27)
Duration : 2022-10-15 - 2024-10-14

In the course of climate change, the framework conditions for agricultural production will change significantly. The ability of the soil to absorb water quickly and efficiently on the one hand and to store as much water as possible in a plant-available form on the other are prerequisites for maintaining agricultural production potential, even under changing climate conditions. The ClimZIEGEL project deals with the application of recycled brick sand in agriculture as a climate change adaptation measure. Under aspects of a circular economy, the ClimZIEGEL project is investigating how valuable soil and water resources can be protected and effectively used by introducing recycled brick sand into the agricultural production cycle. In the first phase, micro- and mesoscale laboratory and field tests will be carried out on the water storage capacity of soil-brick mixtures and their interaction with plants. The results will subsequently (phase 2) be used for the planning and implementation of a field trial on a macro scale. Plant condition and growth will be observed dynamically over an annual cycle and will be the basis for regional modelling with regard to soil water balance, microclimatic effects, erosion control and life cycle assessment. The project results are summarised in the form of an integral assessment and recommendations for action for Lower Austria are derived from it.
Research project (§ 26 & § 27)
Duration : 2022-10-15 - 2023-02-14

Dams serve to store a volume of water. In the case of flowing waters, these are constructed as flood protection dams, while in the case of pond systems they must withstand a constant water pressure. Dams must not only be adapted to the hydraulic, geotechnical, river engineering, morphological and other local conditions or requirements, but are also important landscape elements as habitats for flora and fauna. Regardless of the cross-section, type and function of the dam, they must be observed and evaluated with regard to their stability. In the case of older dams, woody plants are very often encountered, which are discussed very controversially, especially when woody plants are encountered on older dam embankments (> 100 years), which have been poorly documented and the geotechnical structure and condition are unclear. A discussion also takes place because woody plants have positive effects on landscape aesthetics and the natural balance and, depending on the growth form, can also contribute to dam stability through the reinforcing function of the roots.
Research project (§ 26 & § 27)
Duration : 2022-10-01 - 2025-09-30

The HEDWIG project aims to determine the effects of standard-compliant building greenery (green roofs and facades) in the course of permanent monitoring. Sound and resilient vegetation parameters and performance parameters will be obtained and related to the effects of building greening on the indoor and exterior microclimate. HEDWIG develops and verifies a measurement setup suitable for the collection of valid data, their comparability and the evaluation of Green Infrastructure demonstration projects. HEDWIG collects microclimatic and building physical data from 15 representative green buildings with heterogeneous age structures and different types of use. Measurement campaigns and continuous measurements will be applied over two years. Parameters such as transmissivity of climbing plants, heat flux through green roof structures or indoor thermal comfort are recorded in a structured and standardised way. This allows for developing standard parameters for green infrastructure typologies and transfer them to planning and implementation processes. The measurements are supplemented and supported by thermal building simulations. A data evaluation procedure will be developed and standardised to enable cross-site comparisons. Periodically occurring effects as well as favourable and disruptive influencing factors will be identified and made calculable. New findings are in particular expected on the microclimatic influence of green bodies on the building envelope and the interior. An optional objective is assessment of microclimatic effects for the adjacent street space and urban area. The HEDWIG measurement and analysis methodology will be documented in a comprehensible way and made available as open content for future research and demonstration projects. The findings from the key values and effects should enable the further development of calculation models, promote the further mainstreaming of green buildings and form the basis for argumentation and approval processes.

Supervised Theses and Dissertations