Forest fires dynamics and reporestation on the areas passed by fires in the Republic of Kazakhstan

摘要

Factual forest burning index on the territory of the republic of Kazakhstan for the period from 1991–2015 has been analysed in the paper forest fires number and the area passed by them in dependence on firedangerous period durability (the period betuween atmospheric precipitation falling out and weather conditions of a certain year has been determined. At is pointed out that CO2 inereasing in atmospheric air composition results in fire dangerous season ineresing as well and as a results the number of forest fires increasing and as a result the number of forest fires increasing as concerns CO2 composition in atmospheric air the territory of therepublic of Kazakhstan can be divided conditionally into 4 zones. For this as moving from the north to the south with CO2 in creasing in the atmospheric air the degree of influence on vegetation period is decreasing. The main cause of forest fires is a man. Only 82 % of all forest fires are of antrophogenic cause. The exclusion are priirtishye pine forest patches where lighting is the cause of 50–65 % of forest fires, in some regions they are responsible for 93,7 % of all forest fires. The areas passed by fires in availability of seed material are reforestated rather successfully by natural way. However, large burned out forest areas in priirtishye pine forest patches require artificial reforestation.