Excessive anthropogenic pressure on land resources in Ukraine leads to a deterioration of their quality, and consequently they lose their potential. Human impact on the change of land quality can be direct (by involving land lots in use, carrying out economic activities) and indirect (as a result of such activity, enhancing the natural degradation of soils). The tendency of deterioration of the state of land resources requires the subordination of land relations to the main goal – to ensure comprehensive protection of this major national wealth of Ukraine. Legal support for the protection of agricultural land is considered as a single complex of interdependent elements: legal standards for the protection of land, soil, agricultural landscapes, and the mechanism for their implementation – legally significant measures: economic, organizational, scientific and technical. At the same time, it was concluded that the system of legal regulation of the use of agricultural land is not sufficiently saturated with mechanisms for regulating agricultural activity.

The article deals with the results of numerical experiments simulating various ways of reaching the steadystate regime of an ascending swirling air flow in an artificially created tornado. The values of the total kinetic energy and kinetic energy of the rotational motion of the flow are calculated, and the functional dependences of its energy characteristics on time are found. In addition, the acceleration time is determined for various methods of outputting a swirling flow to a stationary mode of operation.