In The Netherlands, projects have been started by the government concerning ecological rehabilitation of rivers and river floodplains. Hydrological, morphological and ecological models are indispensable tools to river basin management. In this paper a cluster of models is presented which have been used to predict and assess the effectivity of measures on improving the environmental quality and the ecological rehabilitation of the floodplains. The cluster of models consists of a simulation model for riparian vegetation development, habitat suitability evaluation models and an expert system concerning the contamination of river habitats and its ecological impact. This approach will result in an integrated ecological, environmental and water management in order to realize the ecological objectives for the rivers in The Netherlands.

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