Peculiarities of the water regime in birch (Betula pendula Roth) leaves during the vegetative period in the territory of Ufa city Bashkortostan Republic

The features of the water regime in birch during the growing season in Ufa are learned. The influence of pollution on the rate of transpiration, water scarcity and relative water content of the assimilation organs birch. It has been established that the increase of pollution has a greater effect on the values ​​of intensity and transpiration of water deficiency and, to a lesser extent to the total water content in the leaves. During the growing season increases the tendency to increase the frequency and range of deviations in the parameters of the rate of transpiration and water scarcity. The maximum deviation from the control parameter in the relative water content marked in the middle of the growing season.