Экологические аспекты влияния газового факела на сосновые древостои в Западной Сибири

Abstract

The taxation characteristics of pine stands growing under conditions of thermal effect of a gas torch in Western Siberia were studied. Sample plots were laid in forest stands with different moisture conditions: in-drained sandy soils (stand age 12 years) and oligotrophic peat bog (the trees age of 20–200 years). The change in the taxation characteristics of the bog forest in the thermal effect gradient is described by linear relationship. With an increase in the distance to the torch, the average height and diameter, the relative abundance and stock of the tree stand decrease. In a young pine stand in drained conditions, the taxation characteristics at different distances from the torch do not change monotonically. As the distance between the section and the torch increases, the average height and stock of the tree stand decrease, and the average diameter and relative completeness increase. As the boundary of the sample plot and the forest approaches with distance from the torch increase, the trend changes in the opposite direction. Apparently, this is due to the fact that on the border of the forest and treeless area, the impact of the torch is not a key environmental factor. At the frontal to the flame section, the taxation characteristics are usually lower than at next one, because direct exposure to infrared radiation reduces the growth rate of trees.