| Summary: | Landscape-ecological and geographical researches of plant successions are topical issues. Such researches are necessary for finding out zone features of primary successions in technogenic landscapes, as landscape environment is an important factor which determines the trajectory of succession processes. The purpose of the article was studying succession processes on technogenic sandy substratum in various natural zones. Material and methods. Researches were carried out in the southeast of Belarus and Middle Urals. The research method was geobotanical survey. At processing the materials the method of Braun-Blanquet was used. Findings and their discussion. During the researches the analysis floristic and coenotic structures of the vegetative cover of the initial stage succession is made. The initial stage is characterized by terophyta domination (59,6% – the southeast of Belarus, 35,7% – the Middle Urals). Most active species of the initial stage of succession in the southeast of Belarus are Artemisia vulgaris L., Equisetum arvense L., Corispermum marschallii Steven, Plantago arenaria Waldst. & Kit., Conyza canadensis (L.) Cronqist; in the Middle Urals they are; Hippophae rhamnoides L., Salsola kali L., Calamagrostis epigeios (L.) Roth, Melilotus albus Medikus, Artemisia vulgaris L. Conclusion. Initial stages of succession on sandy technogenic substrates of the southeast of Belarus and the Middle Urals have similar traits: low projective cover and species abundance, similar specific structure of pioneer groups. There are differences in the spectrum of life forms in the phytosociological composition (few species of Chenopodietea class and absence of representatives of Sedo-Scleranthethea class), in the role of alien species. Актуальной проблемой являются ландшафтно-экологические и географические исследования сукцессий растительности. Такие исследования необходимы для выяснения зональных особенностей первичных сукцессий в техногенных ландшафтах, поскольку ландшафтное окружение – важный фактор, определяющий ...
|
|---|