INVESTIGATION OF SIBERIAN SPRUCE BIODIVERSITY (PICEA OBOVATA L.) FROM SOUTH OF SIBERIA BY PHYSICOCHEMICAL METHODS
UDC 681.785.574:543.573:581.19
Abstract
In our study, we focused on assessing the potential of thermal analysis for intraspecific variability "monitoring" in Picea obovata L. from six sites located in the northeastern part of the Kuznetsk Alatau. We identified two sites with maximum and minimum spectral and thermal characteristics. Spruce wood samples from the Sarala site showed minimum values for the carbohydrate complex (cellulose and hemicelluloses) and an increased lignin content, which indicates a protective reaction of the plant in response to stress caused by active land exploitation with subsequent depletion of the fertile soil layer. Microclimatic growing conditions at the Kommunar site lead to an increase in the content of cellulose and hemicelluloses and a decrease in lignin synthesis. However, no features in the physical and chemical characteristics of the wood substance were found in the Siberian spruce trees from other key sites of Agaskyr and Tunguzhul (sites where signs of anthropogenic load were detected). The scanning electron microscopy method in this study proved its effectiveness in individualizing the anatomical characteristics of samples only by the average number of cells in annual rings.
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