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Sediments, ecosystem services and interrelation with floods and droughts in the AT-CZ border region

Project Leader
Habersack Helmut, Project Leader
Duration:
01.04.2016-31.03.2023
Programme:
Interreg Va Österreich - Tschechien
Type of Research
Basic Research
Project partners
Brno University of Technlogy, Antonínská 548/1, 60190 Brno, Czech Republic.
Contact person: Daniel Marton, marton.d@fce.vutbr.cz, +420541147773;
Function of the Project Partner: Partner
Morava River basin State Enterprise, Dřevařská 11, 602 00 Brno, Czech Republic.
Contact person: Pavel Tollner, tollner@pmo.cz, +420 541 637 298;
Function of the Project Partner: Partner
Staff
Haimann Marlene, Sub Projectleader
Sindelar Christine, Sub Projectleader
Klösch Mario, Project Staff
Haimann Marlene, Project Staff
Riegler Angelika, Project Staff
Krapesch Michael, Project Staff
Schobesberger Johannes, Project Staff (bis 31.03.2022)
Busch Erich, Project Staff
Reumann Barbara Maria, Project Staff
BOKU Research Units
Institute of Institute of Hydraulic Engineering and River Research
Funded by
European Regional Development Funds (ERDF), European Union
Abstract
The Thaya River forms the border between AT and CZ,and both countries profit from its use (e.g. energy production, recreation, fisheries). But the use leads to negative impacts on the river system such as channelization and flood plain disconnection of the river. These impacts initiate a modification of the sediment transport causing e.g. sedimentation in reservoirs and increasing flood risk. Meander cut offs trigger ecosystem degradation and destabilization of the aquatic habitats (e.g. spawning places) and consequently have a negative influence on biodiversity. This affects together with floods and droughts - intensified by climate change - the functioning of ecosystems, increasing vulnerability and a decline in ecosystem services provided by the river.
Therefore the aim of SEDECO is to promote ecosystem services and biodiversity as well as to reduce the impacts of floods and droughts by the derivation of targeted and efficient green infrastructures. The new Hydraulic Engineering Laboratory HEL as open research center will, together with joint monitoring and modelling, form the basis for optimized green infrastructures. This involves an improved knowledge about the Thaya river system including a sustainable reservoir sediment management strategy helping to minimize flood and drought risk. Furthermore SEDECO aims to improve the morphodynamics in cross border meander reaches and of preserved natural or restored river banks, positively influencing ecosystem services and related biodiversity especially regarding fish, macrozoobenthic species and birds.
The key outputs are the New Hydraulic engineering laboratory (HEL), a sustainable sediment management strategy for the Nove Mlyny reservoir and a guideline for sustainable meander and riverbank restoration/preservation to improve ecosystem services and reduce flood and drought risk in the cross border region. The main beneficiaries of the project outputs are (i) the natural environment, the Thaya river biodiversity and the National Parks, (ii) Water Management Authorities in AT (via donau, Lower Austria) and CZ (Povodi Moravi), (iii) persons interested in fisheries and wildlife, (iv) experts, students and researchers, (v) people in the cross border region, affected by floods and droughts, (vi) general public.
Since rivers are not restricted by administrative and political borders and floods, droughts, sediments, fish etc. are moving across borders a pure national/regional/local approach is not able to protect and manage fluvial systems. The cross border cooperation is the only way to guarantee a sustainable solution for the problems addressed in SEDECO.
In SEDECO the new approach consists of a joint development of monitoring, physical and numerical modelling of green infrastructures including a common strategic working and realisation concept developed in close cooperation between all partners.
Keywords
Climate change; Hydrology; River engineering; Structural hydraulic engineering;
drought; floods; ecosystem services; sediment management;
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