University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Selected Publication:
Hauer, C; Holzapfel, P; Flodl, P; Wagner, B; Graf, W; Leitner, P; Haimann, M; Holzer, G; Haun, S; Habersack, H; Schletterer, M.
(2020):
Controlled Reservoir Drawdown-Challenges for Sediment Management and Integrative Monitoring: An Austrian Case Study-Part B: Local Scale
WATER-SUI. 2020; 12(4), 1055
FullText
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- Abstract:
- The present case study deals with a controlled drawdown beyond the operational level of the Gepatsch reservoir (Austria). Based on the awareness of potential ecological consequences, an advanced set of measures was conducted and an integrative monitoring design was implemented. This pre- and post-event monitoring included measurements regarding the cross sectional variability and habitat-related turbidity, freeze-core sampling to obtain knowledge on fine sediment infiltration and an evaluation of the macroinvertebrate communities as well as fish egg development (salmonid incubation). The results of the sedimentological as well as biological investigations show a negligible impact on the downstream located aquatic system due to the controlled drawdown of the Gepatsch reservoir. In addition, recommendations based on the findings from this study regarding possible methods for local scale monitoring can be given.
- Authors BOKU Wien:
- Flödl Peter
- Graf Wolfram
- Habersack Helmut
- Haimann Marlene
- Hauer Christoph
- Holzapfel Patrick
- Leitner Patrick
- Schletterer Martin
- Wagner Beatrice
- Find related publications in this database (Keywords)
- reservoir management
- hydropower
- flushing vs. controlled drawdown
- fine sediment dynamics
- aquatic biota
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