Abstract
The redistribution of sediments in the Kuda river basin as a result of erosion-accumulation processes is investigated from the systems perspective. The current geodynamic position of the basin associated with the transition zone from the Siberian platform to the Baikal rift is emphasized. The contribution of cryogenic, karst and aeolian processes to the mobilization of matter in the system is considered. A quantitative assessment of the amount of transported material in the upper (slope), middle (ravine) and lower (riverbed) lithodynamic zones of the basin was made. Time series of the main hydroclimatic indicators were used to determine the long-term dynamics of the functioning of the basin. Using the satellite images, we identified changes in the economic activities within the basin over the past 30 years. They imply a reduction in croplands and an expansion of grasslands. Calculations show that the annual volume of sediments transported within the basin reaches 3 184 430 tons. Most of them (89%) are involved in the movement by the runoff of storm water, and only 364 405 tons are transported with the runoff of melt water. The role of gully erosion in ablation and sediment transportation is insignificant, because most of the gullies are inactive with a reduction in agriculture; the average growth rate of the heads of gullies does not exceed 0.5 m/year. Channel processes contribute primarily to the redistribution of sediments between adjacent sections of the channel, and their transport to large distances is limited by karst processes and by a significant anthropogenic transformation of the bottoms of the valleys. The annual flow of suspended and transported sediments is a mere 31 000 tons, and the main ablation of material from the system occurs in a dissolved form. In general, the mechanical volume of sediment yield from the system makes up 1%. The rest of material is redistributed in the basin and causes an enhanced accumulation. It is shown that almost half of the sediments is intercepted by large ponds; the rest is accumulated in the bottoms of the valleys in areas with active karst development, on floodplains as well as in talus and proluvial trains. The study determined a general trend in the transformation of the relief as a result of the functioning of the basin implying its planation.
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Simonov, Yu.G. and Simonova, T.Yu., River Basin and Basin Organization of the Landscape Geosphere, Soil Erosion and Channel Processes, R.S. Chalov, Ed., 2004, no. 14, pp. 7–32 [in Russian].
Simonov, Yu.G. and Simonova, T.Yu., Structural Analysis of the Types of Functioning and Evolution of River Basins, Proc. Sci. Conf. “Hydrology and Geomorphology of River Systems” (October 7–10, 1997, Irkutsk), Irkutsk, 1997, pp. 13–23 [in Russian].
Alekseevskii, N.I. and Chalov, R.S., Sediment Movement and Channel Processes, Moscow: Izd. Mosk. Univ., 1997 [in Russian].
Khmeleva, N.V., Vinogradova, N.N., Samoilova, A.A., and Shevchenko, B.F., The Mountain River Basin and Exogenous Processes Within It (Results of Station-Based Investigations), Moscow: Izd. Mosk. Univ., 2000 [in Russian].
Golosov, V.N., Erosion-Accumulation Processes Within River Basins of Developed Plains, Moscow: GEOS, 2006 [in Russian].
Korytny, L.M., The Basin Concept: From Hydrology to Nature Management, Geogr. Nat. Resour., 2017, vol. 38, issue 2, pp. 111–121.
Chorley, R.J. and Kennedy, B.A., Physical Geography: A Systems Approach, London: Prentice-Hall, 1971.
Proc. 8 th IAG. Int. Conf. on Geomorphology “Geomorphology and Sustainability” (August 27–31, 2013, Paris), Paris, 2013, Abstracts Volumes 1–2.
Medvedeva, R.A., Golosov, V.N. and Yermolaev, O.P., Spatiotemporal Assessment of Gully Erosion in the Zone of Intensive Farming in the European part of Russia, Geogr. Nat. Resour., 2018, no. 3, pp. 29–37 [in Russian].
Makkaveev, N.I., River Basin and Erosion Within Its Basin, Moscow: Izd. AN SSSR, 1955 [in Russian].
Dedkov, A.P., Mozzherin, V.I., Stupishin, A.V., and Trofimov, A.M., Climatic Geomorphology of Denudation Plains, Kazan: Izd. Kazan. Univ., 1977 [in Russian].
Bazhenova, O.I. and Martyanova, G.N., Response of Steppe and Forest-Steppe Morphodynamical Systems to Current Climate Change, Geogr. Prir. Resur., 2000, no. 4, pp. 23–32 [in Russian].
Chalov, R.S., Erosion-Accumulation Processes and Erosion-Channel Systems (ECS): Basic Notions, Structure, Functioning Mechanisms, in Ecology of Erosion-Channel Systems of Russia, Moscow: Izd. Mosk. Univ., 2002, pp. 8–15 [in Russian].
Mats, V.D., Efimova, I.M. and Kul’chitskii, A.A., Ancient Valleys of Western Cisbaikalia (History of Formation), Geomorfologiya, 2010, no. 2, pp. 91–101 [in Russian].
Bazhenova, O.I. and Martyanova, G.N., Assessment of Changes in Geocryological Conditions of Subarid Regions of Siberia Under Current Climate Warming, Geogr. Prir. Resur., 2003, no. 4, pp. 51–58 [in Russian].
Bazhenova, O.I., Lyubtseva, E.M., Ryzhov, Yu.V., and Makarov, S.A., Spatio-Temporal Analysis of the Dynamics of Erosion Processes in the South of Eastern Siberia, Novosibirsk: Nauka, 1997 [in Russian].
Kichigina, N.V., Dynamics of Streamflow Characteristics of the Rivers Within the Angara Basin Under Regional Climatic Changes, Geogr. Nat. Resour., 2010, vol. 31, issue 2, pp. 132–136.
Zagorul’ko, N.A., Features in the Basic Ionic Composition of Surface Waters Within the Kuda River Basin, Vestn. Irk. Technk Univ., 2014, no. 2 (85), pp. 61–67 [in Russian].
Leshchikov, F.N., Cryogenic Soils of the Angara Region and Cisbaikalia, Novosibirsk: Nauka, 1978 [in Russian].
Uglanov, I.N., Boyarkin, V.M., Ivanov, I.N., and Filippova, S.A., Natural-Melioration Conditions of Forest-Steppe Regions of Eastern Siberia, Irkutsk: Izd. Irk. Univ., 1990 [in Russian].
Bazhenova, O.I., Tyumentseva, E.M. and Tukhta, S.A., Extreme Phases of Denudation and Questions of Geomorphological Security of the Upper Angara Region, Geogr. Nat. Resour., 2016, vol. 37, issue 3, pp. 246–256.
Tukhta, S.A., Quantitative Assessment of the Intensity of Storm-Induced Soil Losses Within the Kuda River Basin (Lena-Angara Forest-Steppe), Geogr. Prir. Resur., 2017, no. 4, pp. 94–104 [in Russian].
Ryzhov, Yu.V., Gullying in the South of Eastern Siberia, Novosibirsk: Geo, 2015 [in Russian].
Bychkov, V.I., Linear Erosion in the Northern Part of Ust-Orda Buryat National Okrug, Izv. SO AN SSSR, 1961, no. 3, pp. 90–97 [in Russian].
Opekunova, M.Yu. and Tukhta, S.A., Floodplain-Channel Complexes of the Kuda River (Upper Angara Region), Vestn. Buryat. Univ., Ser. Biol. Geogr., 2017, no. 4, pp. 107–113 [in Russian].
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Russian Text © S.A. Tukhta, O.I. Bazhenova, Yu. V. Ryzhov, 2019, published in Geografiya i Prirodnye Resursy, 2019, Vol. 40, No. 2, pp. 147–158.
This work as done within the Integration Program of Irkutsk Scientific Center SB RAS (0341-2017-0001) and with the financial support from the Russian Foundation for Basic Research (17-29-05064).
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Tukhta, S.A., Bazhenova, O.I. & Ryzhov, Y.V. The Functioning of the Cascade Lithodynamic System of the Kuda River Basin (Upper Angara Region). Geogr. Nat. Resour. 40, 169–179 (2019). https://doi.org/10.1134/S1875372819020100
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DOI: https://doi.org/10.1134/S1875372819020100