In Kamienna River Valley the iron ore exploitation was done for a very long time. The intensification of the mining took place in XVIII and XIX century. For this region played an important role Stanisław Staszic. Kamienna River was supposed to be the source of energy and way of transport. Therefore, the river canalization and intensive training was undertaken, in consequence the river course was straighten and shorten, which resulted in the significant change in the river dynamics. Meander elimination and introduction of a uniform cross-section resulted in deterioration of habitat. To-day Kamienna River has deeply incised bed, which causes the drainage of surrounding grounds. After the analysis of the old maps and the river cross-sections it was found that it is impossible to restore the old river bed, because of the important erosion and cut off the sediment transport by dams on Świślina and Kamienna Rivers. Moreover the canalized river along some industrial vestiges is a part of technical patrimony. Therefore the only slight improvements could be proposed – introduction of slight meanders, more natural bed form and irregular banks. That could be obtained by an introduction of small hydraulic structures diverting the water stream. ...
In order to protect the areas against the floods and droughts effect, we need to slow down the outflow in the scale of the whole catchment. The streams and rivers training are one of many possibilities of floods and droughts mitiga-tion. However, these activities often were done without any respect on the basic principle on keeping the ecological continuity of river corridor. In the paper, we propose improving the activities in the rivers and streams channels, in order to al-leviate effects of the technical training. ...
This paper presented the characteristics of six chosen river restoration pro-jects, which three of them have been developed in Poland and single in Denmark, England and Germany. Five of that projects have been realized, in it one partly, however in one case conception project was presented. In selection of cases guided of their differentiation in regarding to project's aims, scale of investment and technical measures used. This was a base for analysis river restoration projects regarding to aims and scope of works. The main aim of river restoration is improvement of environmental, natural and landscape conditions, but in each pro-ject this aim is achieved by using different measures. The principle is that project includs of a number supplementary aims, therein connected with river's and val-ley's economic utilization, to which can by inter alia accepted improvement of flood protection, navigation condition technical infrastructure operating and development of tourism and recreation.
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