Has been presented the authors’ development demonstrating the possibility for determining the atmospheric air pollution in urban forest’s various areas by «passive» dosimetry’s methods. On the example of nitrogen oxides have been analyzed causes and consequences for technogenic pollution of forest ecosystems in urbanized areas. The study conducted on the territory of the Kuntsevskaya dacha’s spruce forest which is the part of the natural reserve «The Setun River’s Valley» (Moscow) has shown that in certain areas within a forest range, nitrogen dioxide accumulation in the air-ground interface can occur. Have been revealed the signs of increased nitrogen status for the investigated forest ecosystem.
In this study, it was shown that in the urban forests bordering highways local disturbances of the nitrogen cycle are observed. In some plots of such forests, zones with a high concentration of nitrogen dioxide may be formed. The mechanisms of this phenomenon were investigated. Using the method of passive dosimetry, nitrogen dioxide absorption rate was estimated at control points in the subcrown space. In the summer period, the light points and the temperature on the soil surface and at a height of 2 m were measured at the control points. It is shown that the formation of internal local zones with a high concentration of nitrogen dioxide in urban forests is regular: surface temperature inversions impede the vertical movement of air, and a decrease in illumination by forest subsurface in comparison with open areas reduces the rate of decomposition of nitrogen dioxide. The influence of these abiotic factors is ambiguous against the background of the transformation of the forest ecosystem during recreational impacts.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.