Assessment of the trees vital state in the urbanized conditions of Kazan city

The research of forest stands in gardens, parks and squares of the center of Kazan was conducted. It is established that the majority of species of the trees, growing in the center of Kazan, are characterized by depression of growth rates in height, at some types it correlates with intensive increase in thickness. In the conditions of the urban environment such infectious diseases as blotches, rusts and powdery mildew are most widespread among trees. Values of vital state indicator at different types varies (drying-out) to 100% (healthy) from 46,2%. City populations of 58,7% of the surveyed types have no obvious damages and form healthy plantings, 34,5% of types form plantings with weak damages whereas plantings with appreciable damages are taped at 7,3% of types.