SILVICULTURAL AND DENDROCLIMATIC ANALYSIS OF PLANTATIONS GMELIN LARCH WESTERN PART OF THE PUTORAN PLATEAU
High-latitude regions of the northern hemisphere are of considerable interest for the assessment of natural and anthropogenic changes in air temperature, growth and productivity of tundra ecosystems. The results of the silvicultural analysis of characteristics and condition of Gmelin larch stands and other components phytocoenosis in various site conditions: Larch sphagnum-ledum (slopes of the northern and southern exposure) and Larch alder (intermontane site) in the upper reaches of Lama lake (Putorana plateau). In the surveyed stands dominated by trees 150-200 years old. Plantings on the northern slopes are in satisfactory sanitary condition, stable, perform basic environmental functions. Sanitary condition of stands on the slopes of southern exposure - is not satisfactory. Larch stands in the intermountain site characterized by best sanitary conditions and productivity. The results of dendrochronological and dendroclimatic analysis of radial increment stands of Gmelin larch. Revealed a sharp increase in the number of extrema larch radial increment in the last 50 years. The sharp increase in the amplitude and frequency of vibrations in the increment of larch since the end of 1960, some increase of increment in this period, as evidenced by the growth of the instability of climatic conditions, and the impact on forest ecosystems of Putorana plateau emissions of Norilsk metallurgical Combine. The maximum air temperature and precipitation total for the year, obviously, are the determining factors in the formation of the annual increment by diameter Gmelin larch in the Putorana mountains.