Basement of the alluvia influence on the channel pattern in example of selected reach of the Pilica River

摘要

The type of the channel pattern is being considered as indicative element of the fluvial environment, especially for lowland, mature rivers. Investigations carried out in the Pilica River valley (example of such river) between Inowlódz and Domaniewice (grant no 2P04E 069 29, Ministry of Science) have shown that morphological features of the valley bottom (channel zone, as well as flood terrace) depends not only on river regime, but also on channel zone geological setting. Elements of the Pilica valley geology influencing on fluvial processes are protrusions of alluvia basement composed of deposits resistant to erosion, crop out in the channel zone.