CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
|
|
CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
|
E. A. Kapitsa, E. A. Trubitsyna, E. V. Shorokhova Biogenic Xylolysis of Trunks, Branches, and Roots of Forest-Forming Species of Dark Coniferous Forests in Northern Taiga // Forest Science (Lesovedenie). 2012. No 3. С.51-58. The aim of this work was to assess the influence of different factors (type of forest-growing conditions, woody species, category of deadwood and substrate, and stem diameter) on biogenic xylolysis and evaluate models of xylolysis. The studies were conducted on an undamaged area at the National Park "Yugyd Va" (Republic of Komi). An exponential model was applied; the rate of biogenic xylolysis was assessed according to a loss of wood mass and basic density. The values of xylolysis constants varied from 0.002 to 0.032 yr-1. The time corresponding to 50% loss of wood mass (t50) decreased in the following order: Siberian pine branches > spruce and fir branches > Siberian pine trunks > roots > fir trunks > birch branches > birch trunks. The substrate category and tree species were the significant factors responsible for biogenic xylolysis. The factors studied did not influence the decomposition of roots and branches. The forest type, the kind of deadwood, and the stem diameter did not affect the rate of biogenic xylolysis. Large wood debris, xylolysis, northern taiga, branches, roots stem wood, slash. . |
webmaster |