TY  - JOUR
A1  - Natho, Stephanie
A1  - Tschikof, Martin
A1  - Bondar-Kunze, Elisabeth
A1  - Hein, Thomas
T1  - Modeling the effect of enhanced lateral connectivity on nutrient retention capacity in large river floodplains
BT  - how much connected floodplain do we need?
JF  - Frontiers in Environmental Science
N2  - Floodplains have been degraded in Central Europe for centuries, resulting in less dynamic and less diverse ecosystems than in the past. They provide essential ecosystem services like nutrient retention to improve overall water quality and thus fulfill naturally what EU legislation demands, but this service is impaired by reduced connectivity patterns. Along the second-longest river in Europe, the Danube, restoration measures have been carried out and are planned for the near future in the Austrian Danube Floodplain National Park in accordance with navigation purposes. We investigated nutrient retention capacity in seven currently differently connected side arms and the effects of proposed restoration measures using two complementary modeling approaches. We modeled nutrient retention capacity in two scenarios considering different hydrological conditions, as well as the consequences of planned restoration measures for side arm connectivity. With existing monitoring data on hydrology, nitrate, and total phosphorus concentrations for three side arms, we applied a statistical model and compared these results to a semi-empirical retention model. The latter was originally developed for larger scales, based on transferable causalities of retention processes and set up for this floodplain with publicly available data. Both model outcomes are in a comparable range for NO3-N (77-198 kg ha(-1)yr(-1)) and TP (1.4-5.7 kg ha(-1)yr(-1)) retention and agree in calculating higher retention in floodplains, where reconnection allows more frequent inundation events. However, the differences in the model results are significant for specific aspects especially during high flows, where the semi-empirical model complements the statistical model. On the other hand, the statistical model complements the semi-empirical model when taking into account nutrient retention at times of no connection between the remaining water bodies left in the floodplain. Overall, both models show clearly that nutrient retention in the Danube floodplains can be enhanced by restoring lateral hydrological reconnection and, for all planned measures, a positive effect on the overall water quality of the Danube River is expected. Still, a frequently hydrologically connected stretch of national park is insufficient to improve the water quality of the whole Upper Danube, and more functional floodplains are required.
KW  - floodplain
KW  - lateral hydrological connectivity
KW  - Danube
KW  - restoration
KW  - reconnection
KW  - inundation
KW  - nutrient retention
KW  - modeling
Y1  - 2020
U6  - https://doi.org/10.3389/fenvs.2020.00074
SN  - 2296-665X
VL  - 8
PB  - Frontiers Media
CY  - Lausanne
ER  - 
TY  - BOOK
A1  - Schmidt, Thorsten Ingo
A1  - Wagner, Dieter
A1  - Schwerdtfeger, Roswitha
A1  - Schäfer, Andrea
A1  - Musil, Andreas
A1  - Edeling, Thomas
A1  - Bauer, Hartmut
A1  - Kinyakin, Andrey
A1  - Loladze, Besik
A1  - Nehls, Danny
A1  - Maaß, Christian
A1  - Kuhlmann, Sabine
A1  - Kuckei, Daniel A.
A1  - Hein, Victoria
A1  - Wille, Robert
A1  - Franzke, Jochen
A1  - Büchner, Christiane
ED  - Franzke, Jochen
T1  - Festschrift für Dr. Christiane Büchner in Würdigung ihres Wirkens am Kommunalwissenschaftlichen Institut (1994–2022)
T3  - KWI Schriften
N2  - Diese eher ungewöhnliche, aber sehr persönlich gehaltene Festschrift ist dem lang­jährigen Wirken von Dr. Christiane Büchner als „Geschäftsführerin“ am Kommunal­wissenschaftlichen Institut (KWI) der Universität Potsdam gewidmet. Die von Prof. Jochen Franzke zusammengestellte und herausgegebene Publikation enthält im ersten Teil neben dem Grußwort des Geschäftsführenden Direktors des KWI Herrn Prof. Thorsten Ingo Schmidt eine Reihe persönlicher Würdigungen von Kolleginnen und Kollegen, Gastwissenschaftlern und Mitarbeitenden, die seit 1994 in verschiedenen Phasen der Entwicklung des KWIs mit Dr. Christiane Büchner eng zusammengearbeitet haben. Der abschließende Dokumentationsteil der Publikation enthält neben Auszügen aus dem Schriftenverzeichnis von Dr. Christiane Büchner auch zwei Nachdrucke aus deren Feder zum Thema der Kreisgebietsreform in Brandenburg (von 2001) sowie über den Landkreis Barnim (von 2019).
T3  - KWI-Schriften - 13 
KW  - Festschrift
KW  - Kommunen
KW  - Landkreise
KW  - Kreisgebietsreform
KW  - Bibliografie
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-544987
SN  - 978-3-86956-529-3
SN  - 1867-951X
SN  - 1867-9528
IS  - 13
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  -