SIZE STRUCTURE OF PHYTOPOPULATIONS AND ITS QUANTITATIVE EVALUATION

  • Victoria Skliar Sumy National Agrarian University, Ukraine
  • Maryna Sherstuk Hetmansky National Nature Park, Ukraine
Keywords: phytopopulations, morphometric analysis, size classes of plants, size structure of phytopopulation, Pinus sylvestris L., Ledum palustre L.

Abstract

There was elucidated the original approach to the evaluation of phytopopulation size structure. For its characteristics it was offered to use the special index - index diversity of size structure (ІDSS). There are presented methods and algorithm of its determination. There was demonstrated that index diversity of size structure can be used at populational studies of species that belong to the different living forms. Especially phanerophytes (Pinus sylvestris) and hamephytes (Ledum palustre). As to Pinus sylvestris and Ledum palustre with help of index diversity of size structure was objectively proved that its cohorts and ontogenetic groups that growth in composition of forest phytocenoses typical for Ukrainian Polissya are not characterized with high level diversity of size structure. The value of index diversity of size structure is mainly less than 20 %. In phytopopulation the specific and phytocenotic peculiarity is demonstrated by diversity of size structure and also by representation of plants of certain size classes.

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Author Biographies

Victoria Skliar, Sumy National Agrarian University

Department of Ecology and Botany

Maryna Sherstuk, Hetmansky National Nature Park

Scientific department

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Published
2016-03-24
How to Cite
Skliar, V., & Sherstuk, M. (2016). SIZE STRUCTURE OF PHYTOPOPULATIONS AND ITS QUANTITATIVE EVALUATION. EUREKA: Life Sciences, (1), 9-15. https://doi.org/10.21303/2504-5695.2016.00047
Section
Agricultural and Biological Sciences