The water regime of the soil cover of the agricultural landscape and its components (using the example of the VNIIMZ experimental field in the Tver region)

The classification of soils water regimes is a basic scientific fundament of an interdependent relationship between the movement of water and the formation of a soil profile. This kind of classification provides a scientific and methodological platform for studying both the water regimes of soils in the landscape and the distribution of soils in the soil cover of the landscape. Numerical methods for representing the hydrological regimes of soils in the agricultural landscape are based on physical mathematical models of the soil water movement and spatial GIS information, together allowing to calculate, analyze and predict the water regimes of soils in the agricultural landscape. A spatial-dynamic SWAT (Soil-Water-Atmosphere-Tool) model is presented to describe the water regimes of soils in the agro-landscape of the finite moraine ridge of the Upper Volga postglacial region (East European Plain, Tver region), as an example of landscape numerical hydrological models. Experimental data on long-term observations of soil moisture correspond to the water calculated by the SWAT model at different times at a certain depth of the soil profile.