Dynamics of pyrological regimes at landscape stows in southern taiga of Central Siberia in 18–20th centuries

Methodological aspects of investigation into the dynamics of pyrological regimes and their effect on natural ecosystems have been considered. It seems reasonable to combine different data on the history of forest fires in order to reveal the long-term dynamics of pyrological regimes. This allows one to eliminate certain disadvantages that are to some extent peculiar to separate methods. The dynamics of pyrological regimes at the main landscape stows in southern taiga of Siberian regions near the Yenisei over the last three centuries has been analyzed. The deviations of modern pyrological regimes from those in the past are quantitatively estimated. Probable ecological and forestry consequences of changes in pyrological regimes and possible ways to govern the pyrogenic factor for the purpose of stabilizing ecosystems are discussed.