Attributes of figs weakening and magnitude of their diameter growth in forest stands of Baikal reserve

Magnitude of fir trees diameter growth at height of breast and attributes of the same trees weakening the pe-riod of time from 1984 till 2007 on two constant trial fields of Baikal reserve is examined. The normal diame-ter growth is noted at trees without attributes of weakening, or with following attributes of weakening: cracked cortex, with wounds of rust cancer or «witche's broom», crones strangulation. On diameter growth of trees es-sential influence renders depression by adjoining trees, polyconics.