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Restoration of ecosystem functions and efficiency control: case study of the Danube floodplain between Neuburg and Ingolstadt (Bavaria/Germany)

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Stammel, Barbara ; Fischer, Peter ; Gelhaus, Marion ; Cyffka, Bernd:
Restoration of ecosystem functions and efficiency control: case study of the Danube floodplain between Neuburg and Ingolstadt (Bavaria/Germany).
In: Environmental earth sciences. Bd. 75 (August 2016) Heft 1174.
ISSN 1866-6280 ; 1866-6299

Volltext

Link zum Volltext (externe URL): https://doi.org/10.1007/s12665-016-5973-y

Kurzfassung/Abstract

The Danube floodplain is disconnected from its river, and natural water dynamic is inhibited by regulation and hydropower generation. Notwithstanding the hydropower dams, this restoration project aims to bring back natural water dynamics to the floodplain by a new floodplain stream, by ecological flooding and by temporary groundwater drawdown during summer months. Due to the new floodplain stream, former fluctuating water zones which are habitat for the target species Oenanthe aquatica changed to aquatic habitats which are also required. The measure groundwater drawdown aims to enhance the abiotic conditions for this pioneer species of muddy streambanks. The scientific efficiency control compares the situation before restoration implementation with the effects of three different types of groundwater drawdown. For these three types, the hydrological situation was investigated, and the effects on the potential area and on the occurrence of O. aquatica were mapped. The outcome is that one type can enhance germination of O. aquatica, but is detrimental for aquatic organisms. The other type is able to provide the same suitable conditions for O. aquatica, without severely harming the aquatic habitats. The third type cannot reach the needed low water levels and is therefore not a comparable option. The results show that an interdisciplinary monitoring is able to develop a measure suitable for both competing habitat types.

Weitere Angaben

Publikationsform:Artikel
Schlagwörter:Low flow, Groundwater drawdown, Oenanthe aquatica, Discharge management
Institutionen der Universität:Mathematisch-Geographische Fakultät > Geographie > Professur für Angewandte Physische Geographie und KU-Forschungsstelle Aueninstitut Neuburg
DOI / URN / ID:10.1007/s12665-016-5973-y
Open Access: Freie Zugänglichkeit des Volltexts?:Nein
Peer-Review-Journal:Ja
Titel an der KU entstanden:Ja
Eingestellt am:02. Jan 2018 14:35
Letzte Änderung:15. Feb 2019 14:16
URL zu dieser Anzeige:http://edoc.ku-eichstaett.de/20954/