E.K. Eskov, M.D. Eskova, S.E. Spasic
Russian state agrarian correspondence University, Russian Federation,Balashikha, 1 Yu. Fuchika St.
It is established that herbaceous (giant golden rod and creeping thistle) and woody plants (ash-leaved maple and great sallow willow) growing under similar conditions differ in lead accumulation by vegetative and generative organs. In particular, the roots of maples and willows accumulate this element more than the goldenrod and thistle. However, biological barriers of these woody plants are more effective than herbaceous ones, which prevent transportation of lead from vegetative organs to generative organs. As maple, willow, goldenrod and thistle belong to the honey plants used by bees for obtaining carbohydrate (nectar) and protein (pollen), bee families should not be placed closer than 1,5–3 km from the loaded highways.
Keywords: woody and herbaceous vegetation, giant golden rod, creeping thistle, ash-leaved maple, great sallow willow, lead, biological absorption coefficient, accumulation.
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