Summary:

In this study the project of technical solutions applied in the renaturation of three oxbow lakes in the Słupia river basin is presented. The aim of those treatments is to restore more natural characteristic of the river by the protection of various river basin elements. The project is focused on the reconstruction of permanent connection between the Słupia River and oxbow lakes. That would enable their irrigation, improvement of physico-chemical conditions and also would create habitats favorable for various hydrobiont groups. The plan of hydrotechnical treatments is accompanied by the model of monitoring for the sake of verification of ecological changes. Thanks to multivariate environmental research it is possible to reveal those changes and to elaborate methods of oxbow lake protection against terrestrialisation and disappearance. The final effect of the project will be the mathematical model of oxbow lake restoration consisting of many submodels of environmental conditions (hydrology, hydrochemistry) as well as plant and animal ecological formations (e.g. invertebrates, macrophytes, bacterias).