The interrelation of primary mechanisms of carbon deposition in Scots pine (Pinus sylvestris L.)during the vegetation season was studied. The regulation of trunk respiratory costs by temperature and the correlation of crown photosynthesis with the respiratory activity of the trunk in spring and autumn periods have been shown. Growth respiration has been found to be in consistency with the rates of biomass accumulation in stem as well as maintenance respiration with photosynthetic activity of crown. The highest levels of growth respiration and maintenance respiration at low level of photosynthesis and the lowest activity of wood formation in stem were observed in mid summer because of temperature and water stress.