Long-term dynamics of snow depth and snow composition in terms of the geochemical landscape of the upper reaches of the river Klyazma

Abstract

We discuss the dynamics of the snow cover and its composition for the period 2013-2018 is shown that the annual dynamics of the snow cover is characterized by the alternation of high and low values. Thus, the highest values were typical for the winter of 2012/2013, followed by a decrease in 2013/2014. The leading role in the distribution of snow cover belongs to the position of the elementary landscape within the geochemical landscape. In all years of research, the water equivalent of snow cover is characterized by bicarbonate-calcium composition. The content of micro components in General is in the same order with the results given for the South taiga landscapes. Some excess of individual components in the composition of snow water in comparison with Meshchersk and Baikal landscapes, taken as a background, due to the proximity of the studied geochemical landscape and the main road M-10 (Moscow-St. Petersburg). It is assumed that the relatively high content of calcium in the snow water of the superaqueous landscape is associated with its possible arrival from the surface of meadowmarsh carbonate soils, boiling from the surface. Sulfate ion has been found to play a leading role in the diagnosis of atmogeochemical pollution, which is partially established for the studied landscapes.

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