Properties and fertility of pyrogenic formations on burnt drained peaty soils

A tendency for an increase in the number of fires on drained peaty soils in the humid zone of Russia is related to the unregulated water regime of the se soils. These fires often lead to complete burning of the organic part of peat soil down to its mineral bottom. Depending on the initial thickness o f the peat, its botanical composition, topography of the mineral surface, a nd other factors, fires result: in the development of various secondary pyr ogenic formations. Their chemical properties are characterized; a system of combined measures to restore the fertility of humic, woody, and peaty pyro genic formations is proposed. It is shown that sandy pyrogenic formations a re often the most difficult objects for reclamation.