Floodplains are essential for rivers to prevent flooding of protected areas – i.e. inhabited areas behind the dikes – in case of high river discharges. However, this is only one of the functions of the floodplains: they are also important for, for example, ecology and resources. In ‘the floodplains’, RiverCare researchers look at and monitor how floodplains, including spatial measures such as side-channels and longitudinal training dams, develop from the perspectives of morphology and ecology.