Vliv ovzduší dálnice D1 na okolní smrkové porosty

Abstrakt

Ozone and NO_x concentrations in the ambient air and rainfall were measured in different distances (40–900 m) from heavy-traffic-loaded highway D1 near Prague. In addition, their influence on the health of Norwegian spruce (Pice abies (L.) Karst.) forest stands was estimated. Atmospheric measurement proved that only vehicles mo­ving up affect the air quality in a distance up to 50 m. Though no statistically significant differences in crown parameters were found, some indicators of long-term stress impact showed a big stress load on the site A1 situated only 40 m from the highway.