The vitality structure and ontogenetic indexes of the coenopopulations’ allium ursinum l. (Alliaceae) in forest phytocenosis in carpathian/ Biological Resources and Nature Managment
Journal Title: Біоресурси і природокористування [Biological Resources and Nature Management] - Year 2017, Vol 9, Issue 5
Abstract
In recent years, the influence of human activities threatens many plants reduction in their populations. In this situation are coenopopulations of Allium ursinum L. The ramsons as characterized by significant food and medicinal properties, its population rapidly declining due to anthropogenic factors such as trampling, tearing leaves, etc. Therefore, the aim of the study was to clarify the vitality structure of A. ursinum at different levels of anthropogenic pressure on them. The study was conducted during 2014 - 2016 years in the Ivano-Frankivsk region. The object of the study was 11 natural coenopopulations of A. ursinum in different growth conditions. Analysis of vitality structure was carried out by the method of Yu. Zlobin. To do this, each coenopopulations were selected by 30 generative individuals. Vitality status of individuals was determined by morphometric parameters such as the length of the stems. The measurements were made in the field without damaging species as A. ursinum included in the Red Book of Ukraine. Vitality ranges of coenopopulations built based on the separation of the investigated species into three classes: high (a), intermediate (b) and low (c). The population is considered to be prosperous at Q> c, the equilibrium at Q ≈ c and depressed when Q <c. For characteristics the dynamics of populations calculated such indexes as inderecovery, aging, replacement and index general age of population for I. M. Kovalenko.
Authors and Affiliations
L. D. Petruniak
Keywords
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