Abstract
The article represents the analysis of 4 Myricaria bracteata populations in Kazakhstan. It was found that ontogenetic spectrum reflects the development degree of coenopopulations related to succession processes of riparian communities. Depending on the floodplain width, free space and phytocenotic pressure, the ontogenetic spectrum and stability of coenopopulation vary from left-sided incomplete to centered incomplete; from unstable invasive (in a narrow floodplain) through successive transitional and young normal to mature normal stable (in a wide floodplain) ones.
Highlights
Woody plants play an important role in forming riparian vegetation of floodplains and valleys of mountain and plain rivers
Myricaria bracteata Royal is a geoxyl shrub widespread in Central Asia; in the mountains of East Kazakhstan the species is common from Jungar Alatau to Gorny Altai
All species of the genus Myricaria are evolving in stream and creek floodplains, and belong to the ecological group of fluviaphytes adapted to short rapid floods
Summary
Woody plants play an important role in forming riparian vegetation of floodplains and valleys of mountain and plain rivers. The population approach to assess individual elements of such vegetation occurred to be a justified one, reflecting on one hand the species behavior at different levels of organization (organism and population), on the other hand – various dynamic phenomena taking place under changing ecological and phytocenotic conditions [1] Such studies make it possible to estimate the level of population stability and plant adaptation, as well as to characterize the succession series associated with both anthropogenic and natural processes in riverside zones. All species of the genus Myricaria are evolving in stream and creek floodplains, and belong to the ecological group of fluviaphytes adapted to short rapid floods.
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