No abstract

A research of the dependence of Lesnaya Opytnaya Dacha (LOD) soil properties on the varieties of the woody vegetation grown on these soils has been conducted. Measurements of the humus content, hydrolytic soil acidity, saline soil acidity and the sum of exchange base cations were used as main soil properties. Different types of vegetation were studied, including pure deciduous and pure coniferous stands and their mixtures in different proportions. Some controversial data was acquired, according to which, it appears that deciduous stands and coniferous stands do not have a statistically significant impact on the studied soil properties.

Excessive moistening of soils leads to the development of restorative conditions in them, an increase in the mobility of Fe, Mn, Cu, a decrease in Eh of less than 400-300 mv, to the transition of NO3 to NH4, NH3, N2, to an increase in the gas phase of soils of CO2, H2S, methane. At the same time, negative consequences appear both in soils and in water and air environments. This has a negative effect on the vegetation cover of hydromorphic soils. The paper shows an increase in denitrification with excessive moistening of soils, a decrease in Eh, NO3 content, mobile phosphates, and a decrease in the ratio of mobile (Ca+Mg):(Fe+Mn), while there is also a change in the content of positively and negatively charged cation compounds in water, soil, and plants. Keywords: SOD-PODZOLIC SOIL, MEADOW-CHERNOZEM SOIL, ANAEROBIOSIS, GLUING, PROCESSES AND REGIMES

The sod-podzolic soils of the suburban area of the Moscow region are characterized by a sufficiently high fertility, but are subject to contamination with heavy metals, pathogenic microorganisms, as well as the influence of the processes of gluing, which affects their fertility. The sod-podzolic soils were studied, automorphic and of varying degrees of gleization, as well as the soils of the forest area. The cultivation of the soils of the suburban area affects their acid-base state, the content and distribution of mobile forms of macro- and microelements along the soil profile. The biological activity of the geophysical fields of these soils is shown. A decrease in soil fertility was found when they were peeled, which correlates with the information and energy fields of these horizons. Keywords: SOIL, FERTILITY, ECOLOGY, INFORMATION AND ENERGY FIELDS, BIOTESTS