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 reconfguration and implementing regulatory measures we use certain indicators of channel stability, the channel pattern, river runoff, conditions of effective discharge, composition of bed-material load, occurrence of riffes 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 identifed the most diffcult (for channel management) sections; for the broad foodplain, unstable and compound braided channel we determined the main water management and water transport problems associated with channel processes.

中文翻译：

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按河道过程及其管理的复杂性对勒拿河段进行排名

我们证实了使用先前开发的方法从河道过程的类型及其管理的特殊方面对最大河流 (Lena) 的部分进行分类，即水资源利用、河流作为水运方式的开发、河流的开发区域和服务线过河的建设。为了评估河道改造的复杂性和实施监管措施，我们使用了河道稳定性、河道格局、河流径流、有效排放条件、河床物质负荷的构成、浅滩的发生及其制度特征的某些指标。结果表明，航道进程管理复杂度的指标是为保证正常航行条件而进行的航道疏浚量。在勒拿河上（从奥塞特罗沃港到河口），有 10 个河段在河道过程的特征和复杂程度以及相应的管理条件方面都不同。该研究确定了最困难的（渠道管理）部分；对于广阔的食物平原、不稳定和复合辫状河道，我们确定了与河道过程相关的主要水管理和水运问题。