Premonitoring Nature Test Bad Deutsch Altenburg

In the framework of the "Integrated River Engineering Project" for the free-flowing Danube in the Alluvial Zone National Park downstream from Vienna, the planned river engineering measures will be tested in a 3 km long Danube section near Bad Deutsch-Altenburg (presumably during winter 2007/2008). The Institute of Hydrobiology and Aquatic Ecoystem Management is entrusted with the documentation of the current state with special regard to river type-specific characteristics of that Danube reach. Here, characteristic river morphological parameters of the main channel and floodplain water bodies are measured and compared with the type-specific reference conditions prior to channelization in the beginning 19th century. As a result, the deviation of the current state from the natural reference conditions can be evaluated. After the planned river restoration measures are carried out, in a second step, the achieved changes in hydromorphology in respect of the natural ecomorphological Leitbild (target view) can be estimated.