ABSTRACT
The exchange of chemical substances in plant communities has been the subject of specialized studies, which are aimed at elucidating the characteristics of mineral nutrition of plants. The absorption and transformation of mineral substances is the basis for regulating the processes of synthesis of organic matter, plants’ growth. The research conducted by Tyukavina and Kunnikov relied on the X-ray fluorescence analysis of mineralogical composition of needles, branches, bark of Scotch pine and wood of Balsam poplar as possible components of the fertilizer composition. The important factors are the intensity and spectral composition of the light flux, CO2 content in the ambient air, temperature, humidity, soil moisture, its physico-chemical properties, wind, the intensity and direction of the atmospheric electric field. The intensity of transpiration of Pinus sylvestris is changed from 35 to 395 mg/g of wet weight per hour, of Picea obovata is from 20 to 280 mg/g of wet weight per hour in coniferous boreal forests of the Komi Republic.
