Complex effect of pyrogenic impact factors on biological properties of chernozems

For the first time, the influence of pyrogenic effects on the biological condition of the ordinary chernozem of the Rostov region. In model experiments in 2017-2019 investigated the change in the biological properties of the soil when exposed to the flame of a gas burner (duration 1, 2, 3 minutes), infrared radiation (to a temperature of 100, 200 and 400°C), as well as smoke from straw combustion at different temperatures (52 and 139°C for 3, 9 and 30 minutes). When exposed to fire, smoke and infrared radiation revealed a decrease in the values of biological indicators. Enzyme activity decreases when exposed to gas burner by 17-30%, when exposed to infrared radiation - by 55-84%, and when exposed to hot (136°C) smoke - by 16-32%. The degree of reduction depended on the duration of exposure, soil moisture and temperature. Microbial biomass is reduced - by 35-52% when exposed to the fire of a gas burner, 49-68% when exposed to infrared radiation, and 10-35% when exposed to smoke.

чернозем обыкновенный, пирогенный фактор, инфракрасное излучение, дым, ферментативная активность, микробиологическая активность, биодиагностика почв, chernozem ordinary, pyrogenic factor, infrared radiation, smoke, enzyme activity, microbiological activity, biodiagnostics