Changing of the riverine sediment load supply into Lake Baikal: The natural and anthropogenic causes (Russia)

Potemkina, T. G.; Sutyrina, E. N.; Potemkin, V. L.

doi:10.1016/j.quaint.2019.04.027

Cited by 8 publications

(3 citation statements)

References 59 publications

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“…The main natural factors influencing the Selenga delta are fluctuations of the Baikal Lake water level, main river hydrological regime and the local landscape characteristics. The sources of suspended load include bank erosion in the main river lower reach, drainage area surface erosion and upstream channel erosion (Potemkina et al 2019). The tentative hypothesis of this study states that the basin source prevails over others in contribution to sedimentation traps due to the widespread anthropogenic influence throughout the catchment (cultivation, grazing and mineral resources exploration), which enhances fluvial processes including soil, gully and river channel erosion (Bazhenova et al 1979).…”

Section: Introductionmentioning

confidence: 78%

Contribution Of The Different Sources To The Formation Of Alluvial Sediments In The Selenga River Delta. (Eastern Siberia, Russia)

Zaharova

Belyaev

2023

GES

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Unraveling sources of sediment supply, their temporal and spatial variability is of key importance to determine origin of deposits and to explore the formation mechanism of Selenga Delta landscape units. From an environmental point of view this solution would help to identify the particle-bound pollution sources. We used geochemical fingerprinting (the FingerPro R package), which is a modern quantitative implementation of the method of sedimentary provenance analysis. The main aim was to recognize the main patterns of sediment and associated particle-bound pollutants transport and deposition within the delta. At the old floodplain from 55% to 90% of sediments were delivered from the eroded floodplain and terrace banks upstream and only about 10-15% originates from the remote basin sources. Sedimentary environment in the Khlystov Zaton reveals a greater variety than on the floodplains. 40% of sediments from the upper 5 cm-layer originated from the flood, taking place in 2013, and 30% were the product of floodplain and terraces banks erosion. Nevertheless, analysis of the fine-grained component of suspended sediment sets the material from eroded floodplain banks as the dominant source of accumulation within the delta. This means that the self-absorption is the leading process in the Selenga delta at the moment. Heavy metals and metalloids accumulates in the lower reaches of the Selenga on the floodplain surface, deltaic lakes and oxbows during high floods. Runoff decrease during floods can lead to the release of pollutants into the Lake Baikal.

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Section: Introductionmentioning

confidence: 78%

Contribution Of The Different Sources To The Formation Of Alluvial Sediments In The Selenga River Delta. (Eastern Siberia, Russia)

Zaharova

Belyaev

2023

GES

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“…Starved of sediment, many of the world's river deltas over the past several decades are drowning at an unprecedented rate (Giosan et al., 2014). As such, these regions, with great economic and societal significance, have become a focus of scientific research communities globally (Milliman et al., 2008; Potemkina et al., 2019; Walling, 2006).…”

Section: Introductionmentioning

confidence: 99%

Impact of Artificial Floods on the Quantity and Grain Size of River‐Borne Sediment: A Case Study of a Dam Regulation Scheme in the Yellow River Catchment

Wang

et al. 2021

Water Resources Research

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“…Therefore, it is meaningful to study the characteristics of ecohydrological processes in the basin. The largest sub-basin of this basin is the Selenge River Basin, which has a significant impact on the hydrological processes of Lake Baikal [7]. The hydrological system of the Selenga River Basin is influenced by natural and social factors [8].…”

Section: Introductionmentioning

confidence: 99%

Study on Relationship of Land Cover Changes and Ecohydrological Processes of the Tuul River Basin

et al. 2021

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The Tuul River Basin is the most important socioeconomic and political base area of Mongolia. Therefore, studying the interrelationships between changes in the ecohydrological processes of this basin and its land cover is of great importance for maintaining sustainability and the environment. This study investigated the annual average air temperature, total annual precipitation, and river discharge variability, and land cover changes at selected stations of the basin by using the hydrometeorological analysis, satellite analysis, and land cover determination statistical analysis. During the study period, the average annual air temperature rose from −1.5 °C to +0.3 °C (1.8 °C 361 °C). The average annual precipitation exhibits relatively low change during this period. River discharge varied during the study period. A significant decreasing trend in river discharge was observed at the Terelj (φ = −2.72) and Ulaanbaatar (φ = −5.63) stations, whereas the other stations, Altanbulag, Lun, and Orkhontuul, showed a significant increasing trend. During the study period, changes in land cover were directly related to main hydrometeorological parameters. Between 2000 and 2020, the amount of grassland decreased by 319.67 km2, while the area of water bodies increased by 28.36 km2. In the study area, mainly water bodies and sensitive areas of the land cover types were changed due to changes in precipitation. Studies in the arid and semiarid regions of Central Asia show that changes of ecohydrological processes have a significant impact on land cover changes.

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Changing of the riverine sediment load supply into Lake Baikal: The natural and anthropogenic causes (Russia)

Cited by 8 publications

References 59 publications

Contribution Of The Different Sources To The Formation Of Alluvial Sediments In The Selenga River Delta. (Eastern Siberia, Russia)

Contribution Of The Different Sources To The Formation Of Alluvial Sediments In The Selenga River Delta. (Eastern Siberia, Russia)

Impact of Artificial Floods on the Quantity and Grain Size of River‐Borne Sediment: A Case Study of a Dam Regulation Scheme in the Yellow River Catchment

Study on Relationship of Land Cover Changes and Ecohydrological Processes of the Tuul River Basin

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