Home – Home – Jornals – Geography and Natural Resources 2020 number 1

We substantiate the use of the previously developed methods to classify sections of the largest river (Lena) from the types of channel processes and special aspects of their management, i. e. water resource use, exploitation of the river as the water transport way, development of riverine areas and construction of river crossings for service lines. For assessing the complexity of river channel reconfiguration and implementing regulatory measures we use certain indicators of channel stability, the channel patten, river runoff, conditions of effective discharge, composition of bed-material load, occurrence of riffles and characteristics of their regime. It is shown that the indicator of complexity of channel processes management is represented by the amount of channel dredging performed to ensure normal navigation conditions. On the Lena river (from the Osetrovo port to the estuary) there are 10 reaches which differ both in the features and the degree of complexity of channel processes and, accordingly, in the conditions for their management. The study identified the most difficult (for channel management) sections; for the broad floodplain, unstable and compound braided channel we determined the main water management and water transport problems associated with channel processes.