Debris Flow Morpholithogenesis in the Central Part of the Sayan-Baikal Stanovoi Highlands

Makarov, S. A.; Cherkashina, A. A.

doi:10.1134/s1875372819010086

Cited by 3 publications

(1 citation statement)

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“…The Iya river basin within the area under research crosses a number of heterogeneous geomorphological surfaces-the mountain-folded region of the East Sayan uplift to the trap regions of the Central Siberian plateau. Geological and geomorphological conditions provided a variety of morphodynamic channel and floodplain types within the river valleys [68].…”

Section: Activation Of Exogenous Relief-forming Processes Of the Iya ...mentioning

confidence: 99%

The Functioning of Erosion-channel Systems of the River Basins of the South of Eastern Siberia

et al. 2020

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We revealed the regional features of the functioning of the erosion-channel systems of the Angara, Upper Lena, Selenga, and Upper Amur basins in the south of Eastern Siberia and examined the action of sloping non-channel, temporary, and permanent channel water flows, and presented the patterns of the spatial distribution of soil and gully erosion belts. The development conditions and factors of fluvial processes are considered and the role of cryogenic processes in the increasing activity of water flows is emphasized. The interdecadal dynamic cycles of the erosion-accumulative processes are revealed. A quantitative assessment of soil loss from erosion on agricultural land in the forest-steppe basins was carried out. We made an assessment of the plane deformation of the upper course of the Lena river (Siberian platform) and Irkut (Baikal rift zone and the Irkutsk-Cheremkhovo plain) using cartographic sources of different times, aerial photographs, and satellite imagery. The contribution of extreme fluvial events to sediment redistribution in river basins is shown. Particular attention is paid to the mudflow impact, floods, and channel deformations on the ecological state of the basin systems.

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Section: Activation Of Exogenous Relief-forming Processes Of the Iya ...mentioning

confidence: 99%

The Functioning of Erosion-channel Systems of the River Basins of the South of Eastern Siberia

et al. 2020

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Habitat Distribution Patterns of Nemoral Relict Plant Species on the Khamar-Daban Ridge (the South of Eastern Siberia) According to Grid Mapping Data

et al. 2021

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Channel Deformations and Hazardous Processes of the Left-Bank Tributaries of The Angara River (Eastern Siberia)

Opekunova

Kichigina

Rybchenko

et al. 2023

Water

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The influence of anthropogenic and natural factors in the trends and mechanisms of development at various topological levels is determined based on relevant information on the structure and dynamics of fluvial systems in the south of Eastern Siberia in various geodynamic settings. This article considers the current spatial and temporal dynamics of the hydrological conditions of the vast territory of the Angara River and its influence on channel deformations and the manifestation of dangerous processes. An analysis of fluctuations in the maximum runoff using differential integral curves resulted in the identification of six periods of water content according to the maximum annual discharges for the period spanning from the beginning of observations to 2020 for the rivers under consideration. The dynamics and intensity of manifestation of hydrological and geological hazardous processes are demonstrated using a series of studies conducted under various geodynamic conditions. Catastrophic floods brought on by enhanced cyclonic activity are accompanied by the destruction of the bank. The highest rate of bank erosion in the plains is 1.5 to 2 m per year, and for rivers in mountains and piedmonts it is 2 to 6 m per year. An analysis of the dynamics of the development of floodplain–channel complexes in the Upper Angara region makes it possible to distinguish two zones of actively developing floodplain–channel complexes: piedmont and estuarine, separated by a relatively stable plain zone.

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Debris Flow Morpholithogenesis in the Central Part of the Sayan-Baikal Stanovoi Highlands

Cited by 3 publications

References 1 publication

The Functioning of Erosion-channel Systems of the River Basins of the South of Eastern Siberia

The Functioning of Erosion-channel Systems of the River Basins of the South of Eastern Siberia

Habitat Distribution Patterns of Nemoral Relict Plant Species on the Khamar-Daban Ridge (the South of Eastern Siberia) According to Grid Mapping Data

Channel Deformations and Hazardous Processes of the Left-Bank Tributaries of The Angara River (Eastern Siberia)

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