Sediment Transfer through the Fluvial System (Proceedings of a symposium held in Moscow, August 2004). IAHS Publ. 288, 2004, 253–260


The assessment of Ukrainian riverbed deformation

ALEXANDR G. OBODOVSKY

Geographical Faculty, Kyiv National Taras Shevchenko University, Vladimirska St., 64 Kyiv-33, 01033, Ukraine

obodovskiy@mail.univ.kiev.ua

Abstract Two types of riverbed deformation (vertical and horizontal) were assessed for Ukrainian rivers. In zones of mixed forests and forest-steppe, vertical deformation was manifested in the form of a decrease in water levels, with associated washing out of the riverbed. For rivers of steppe zone and some rivers of forest-steppe, vertical deformation was manifested in the accumulation of alluvium due to increasing water level. Freely meandering rivers are characterized by intensive horizontal deformation in the zone of mixed forests. The least horizontal deformation is observed for in-cut riverbeds. Criteria are provided which allow for the assessment of both vertical and horizontal deformation types.

Key words activity of rivers; criteria correction; riverbed deformation types; riverbed formation; Ukrainian rivers