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.

中文翻译：

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库达河流域（上安加拉地区）级联岩石动力系统的作用

从系统的角度研究了由于侵蚀-堆积过程而导致的库达河流域沉积物的重新分布。强调了与从西伯利亚地台到贝加尔湖裂谷的过渡带相关的盆地当前的地球动力学位置。考虑了低温、岩溶和风成过程对系统中物质流动的贡献。对盆地上部（斜坡）、中部（沟壑）和下部（河床）岩石动力带中输送的物质量进行了定量评估。主要水文气候指标的时间序列用于确定流域功能的长期动态。使用卫星图像，我们确定了过去 30 年流域内经济活动的变化。它们意味着耕地减少和草原扩张。计算表明，流域内年输运泥沙量达3 184 430吨。其中大部分（89%）通过雨水径流参与运移，仅有364 405吨通过融水径流运输。沟壑侵蚀在消融和泥沙输送中的作用微不足道，因为大部分沟壑不活动，农业减少；沟头平均增长率不超过0.5m/年。河道过程主要促成河道相邻部分之间沉积物的重新分布，它们向远距离的输送受到岩溶过程和山谷底部重大人为转变的限制。悬浮和运输的沉积物年流量仅为 31 000 吨，系统中物质的主要烧蚀以溶解形式发生。一般来说，系统产生的泥沙机械体积占1%。其余的物质在盆地中重新分布，并导致积聚增加。结果表明，几乎一半的沉积物被大池塘拦截；其余的则积聚在岩溶发育活跃地区的山谷底部、洪泛平原以及距骨和洪积河道中。该研究确定了由于盆地的功能而导致的地势转变的总体趋势，这意味着其被夷为平地。系统产生的泥沙机械量占1%。其余的物质在盆地中重新分布，并导致积聚增加。结果表明，几乎一半的沉积物被大池塘拦截；其余的则积聚在岩溶发育活跃地区的山谷底部、洪泛平原以及距骨和洪积河道中。该研究确定了由于盆地的功能而导致的地势转变的总体趋势，这意味着其被夷为平地。系统产生的泥沙机械量占1%。其余的物质在盆地中重新分布，并导致积聚增加。结果表明，几乎一半的沉积物被大池塘拦截；其余的则积聚在岩溶发育活跃地区的山谷底部、洪泛平原以及距骨和洪积河道中。该研究确定了由于盆地的功能而导致的地势转变的总体趋势，这意味着其被夷为平地。在泛滥平原以及距骨和积水列车中。该研究确定了由于盆地的功能而导致的地势转变的总体趋势，这意味着其被夷为平地。在泛滥平原以及距骨和积水列车中。该研究确定了由于盆地的功能而导致的地势转变的总体趋势，这意味着其被夷为平地。