The environmental factor influence on balsam poplar radial growth in Tomsk

The research on the change peculiarities of the diameter increase for balsam poplar ( Populus balsamifera L.) 45-55-year-old trees depending on the most common ecological (anthropogenic and biological) environmental factors in the city: transport, territory beautification, entomological wrecker affect is conducted. On the basis of the received data it is revealed that the growth of balsam poplar in urban environment significantly decreases with the degree increasing of tree crown destruction by poplar moth ( Lithocolletis populiella Tr.) and expanding the object territory road-path network, as well as traffic intensity increasing.