We examine the composition of metals in the waters of the southern tributaries of Lake Baikal as well as comparing it with the composition of metals in bottom sediments and calculating the water migration coefficients of metals. The territory of the southern part of the lake drainage basin was regionalized according to the ability to ensure a particular water composition. The contribution from the southern tributaries to the chemical composition of Lake Baikal water was evaluated. It was found that the composition of macroelements and trace elements in the waters varies over a broad range. There occur waters with salt contents far exceeding those in Baikal water and its main tributaries as well as with considerably lower salt contents. Macroelements in the waters of all the streams studied are absolutely dominated by calcium, whereas the waters differ greatly in magnesium and sodium contents. Trace elements in the waters of the rivers on the southwestern coast are dominated by strontium, vanadium and molybdenum, which significantly differs them from the waters of the rivers of the southeastern coast, Lake Baikal and its main tributaries. The values of the water migration coefficients as calculated for the macroelements in the waters of the southern and main tributaries of Baikal are similar. The water migration coefficient of trace elements for the river waters in the study area differ greatly from the coefficients for the waters of the main tributaries of Baikal. The reason behind this is the existence of sources of dissolved matter, such as rocks and deep underground water, with their composition not characteristic for corresponding landscapes. The contribution from the southern tributaries to the macroelement composition of Lake Baikal waters can be estimated at the range of 5 to 30% depending on the selected tracer metals. The contribution from the southern tributaries to the trace element composition of the Baikal waters defies estimation because of their much higher concentrations in the rivers when compared with Baikal water. The differences in the trace element concentrations in the water of Baikal water and of its tributaries are caused by their migration in the composition of organic matter. In consequence of a long period of water exchange in Baikal, this matter is deposited or decays thus promoting the removal of trace elements from solution.

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贝加尔湖南部支流水域中的金属

我们研究了贝加尔湖南部支流水域中的金属成分，并将其与底部沉积物中的金属成分进行了比较，并计算了金属的水迁移系数。湖泊流域南部的领土根据确保特定水组成的能力进行了区域化。评估了南部支流对贝加尔湖水化学成分的贡献。结果表明，水体中大量元素和微量元素的组成变化范围很广。出现含盐量远超贝加尔湖及其主要支流的水域，且含盐量低得多。所研究的所有河流水域中的常量元素绝对以钙为主，而水中的镁和钠含量差异很大。西南沿海河流水域中微量元素以锶、钒、钼为主，与东南沿海河流、贝加尔湖及其主要支流水域有显着差异。贝加尔湖南部和主要支流水域中大量元素计算的水迁移系数值相似。研究区河流水体微量元素水迁移系数与贝加尔湖主要支流水体的迁移系数差异较大。这背后的原因是存在溶解物质的来源，例如岩石和深层地下水，它们的组成不是相应景观的特征。根据所选择的示踪金属，南部支流对贝加尔湖水域大量元素组成的贡献估计在 5% 到 30% 之间。南部支流对贝加尔湖水微量元素组成的贡献无法估计，因为与贝加尔湖水相比，它们在河流中的浓度要高得多。贝加尔湖水及其支流水体中微量元素浓度的差异是由它们在有机物组成中的迁移引起的。由于贝加尔湖长时间的水交换，这种物质会沉积或腐烂，从而促进从溶液中去除微量元素。