Eva Nora Müller, Loes van Schaik, Theresa Blume, Axel Bronstert, Jana Carus, Jan H. Fleckenstein, Nicola Fohrer, Katja Geissler, Horst H. Gerke, Thomas Gräff, Cornelia Hesse, Anke Hildebrandt, Franz Hölker, Philip Hunke, Katrin Körner, Jörg Lewandowski, Dirk Lohmann, Karin Meinikmann, Anett Schibalski, Britta Schmalz, Boris Schröder-Esselbach, Britta Tietjen

• Ecohydrology analyses the interactions of biotic and abiotic aspects of our ecosystems and landscapes. It is a highly diverse discipline in terms of its thematic and methodical research foci. This article gives an overview of current German ecohydrological research approaches within plant-animal-soil-systems, meso-scale catchments and their river networks, lake systems, coastal areas and tidal rivers. It discusses their relevant spatial and temporal process scales and different types of interactions and feedback dynamics between hydrological and biotic processes and patterns. The following topics are considered key challenges: innovative analysis of the interdisciplinary scale continuum, development of dynamically coupled model systems, integrated monitoring of coupled processes at the interface and transition from basic to applied ecohydrological science to develop sustainable water and land resource management strategies under regional and global change.