GAS RESISTANCE AND ECOLOGICAL FUNCTION OF ENGELMAN SPRUCE IN AN URBAN ENVIRONMENT
The article presents the results of a study of the state of gas resistance of Engelman spruce using the method of evaluating the ventilation of spongy parenchyma. Data on the level of dust and noise - absorbing function of this type of wood are given. It is established that Engelman spruce it is a fairly stable breed in urban conditions. The assessment of dust retention by this breed indicates that Engelman spruce has a high dust retention capacity. On average, 15.5 mg of dust is retained per 1 cm2 of needles. In addition, a high ability of noise absorption by plantings of this breed has been established.