Water extracts as a criterion of estimation of the geochemical situation in the conditions of a monolithic soil-geochemical catena within the upper reaches of the Klyazma river
In soils developing within a monolithic soil-geochemical catena, the composition of water-soluble macro-, microelements and anions has been studied. It has been shown that, as hydromorphism increases from eluvial to accumulative landscapes, the carbon and nitrogen contents naturally increase. The nature of the distribution of water-soluble forms of macro- and microelements is due to bioaccumulative processes and features of eluvial-illuvial differentiation of soils. In the marginal parts of the watershed depression, the combination of eluvial-illuvial differentiation of the soil and intensive lateral removal in the spring determines the maximum leaching of the upper soil horizons. The use of cluster analysis confirms in the system of geochemical catena the relationship of genetic affiliation and soil position with the composition of water extracts.