Taxation characteristics and life state of Quercus robur l. in various forest conditions in the Tunnel beam (Dnipro city)

Influence of forest conditions on the taxation characteristics and vital state Quercus robur L. was analyzed. The plants were planted artificial plantations laid in a tunnel beam city Dnipro 1961. experimental plots located thalweg (mesohygrophilic – L3) slope northern exposure (mesoxerophilic L1). 301 specimen Q. trees grow (SG1), 357 found. oak three morphological races beam: r. pectinata Schneid, longiloba Lash, Laciniata Schneid. Schneid are dominate: 82.70 % (SG3), (SG1) 78.60 %. It found, that talweg have larger average height trunk diameter. In mesohygrophilic more assigned to last two classes (16.1–18.0 18.1–20.0 m), than mesoxerophilic. tallest grows thalweg. There 22 m heigh, 19.5 m. accordance with calculations, is 16 m; it 14 m, diameter 42 cm 32 cm, respectively. Most category vitality state: healthy tree. such mesoxerophilic ones (76.40 63.90 %, respectively). Weakened 32.70 beam, 17.40 status index 88.0 talwez 91.0 no fresh dead wood previous years plots. indeх planting higher, conditions. Favorable water supply conduced better growth branches shoots leaves them. Tree pathologies common analysis damage shown, largest part falls dry top slope. fungus cup tumors trunks, only one tree excrescence Such as inclination, curvature, multi-stemmeds dryness thick skeletal revealed. much less