Study of post-fire successions at the population structural level in the forests of Sikhote-Alin
T. A. KOMAROVA1, N. V. TEREKHINA2
1Federal Scientific Center for Biodiversity of Terrestrial Biota of East Asia, Vladivostok, Russia
2St. Petersburg State University, Institute of Earth Sciences, St. Petersburg, Russia
Keywords: cenopopulations, ontogenetic states, growth rates, phytocenotic significance, abundance, soil seed banks
Abstract
Successional transformations after fires in broad-leaved Korean pine and Korean pine-dark coniferous forests of Sikhote-Alin are considered at the population structural level. The principles and provisions of the systemic approach and the closely related concept of structural levels were adopted as the methodological basis. We consider successions as an integral biogeocenotic process and at the same time it is a differentiated process within which the specific development of elements of different structural levels (phytocenotic, population, etc.) is carried out. In establishing the basic content, driving forces and mechanisms of regulation of the succession process at the population structural level, well-known knowledge in areas of evolutionary theory. The article summarizes the results of long-term studies of the features of age-related development, growth rates, the rhythm of generation change, the dynamics of the indicators of the cenotic role and the number of leading population. In addition, changes in the species composition and stocks of viable seeds in the litter and soil during post-fire successions are considered.
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