We did not find any significant correlation of the leaf morphological characteristics (mass, area and thickness, specific leaf areas (SLA)) of birch and short-/long-term pollutants when all sites were considered (Table 6).
We did not find any significant correlation of the leaf morphologicalcharacteristics (mass, area and thickness, specific leaf areas(SLA)) of birch and short-/long-term pollutants when all sites wereconsidered (Table 6).