Ценопопуляции Polygala sibirica L. в окрестностях села Еланка (Центральная Якутия)

In work phytocenotic and population analysis of rare resource species of P. sibirica coenopopulation state in the vicinity of Elanka village within Central Yakutia is carried out. Dependence of demographic structure of coenopopulation on specific structure of phytosenosis a projective covering of herbage and extent of anthropogenous impact is revealed. The integrated analysis of data for P. sibirica has shown that all of them are capable to self-maintenance without introduction of rudiments from the outside. The difference of phytocenotic environment, abundance and projective covering of grassy bush tier exerts considerable impact on indicators of number and density of growth of a type, uneven distribution of individuals is noted, the greatest concentration is noted near maternal plants and on sites with a low projective covering. The narrow ecological confinedness, low competitiveness can explain insignificant distribution of P. sibirica. The ripening type of coenopopulation testifies to a sufficient share of generative and the pregenerative plants capable to maintain demographic balance to provide replenishment of seeds bank. An average age range of P. sibirica one-topmost, right-hand, with prevalence of individuals of mature generative condition. The studied coenopopulation of a type are capable to long existence as components of unique relic steppe communities, in the absence of anthropogenous press or its moderate influence.