The contents of Mn, Zn, B, and I in the soils of dagestan mountains

The concentrations of Mn, Zn, B, and I; the humus content, and the pH values have been determined in the main soil types of mountainous Dagestan. The total content of microelements and their distribution in the soil profiles depend on many factors, including the absolute height of the territory and the character of soil-forming rocks. In general, the studied soils are well provided with Zn and B and poorly provided with Mn and I. The concentrations of these microelements in all the soils are highly variable in the upper horizons; down the soil profile, the degree of the spatial variability decreases. The variability in the contents of Mn and I does not fit the normal law in the case of soddy meadow, eroded meadow, meadow-forest, and meadow-steppe mountainous soils. No correlative relationships have been established between the contents of Zn, B, and humus, as well as between the contents of Mn and Zn and the soil pH. A weak correlation exists between the content of B and I.