Сохранение биоразнообразия Южносибирских видов рода Hedysarum L. в природе и при интродукции УДК 581.52:582.736/739

Аннотация

The goal o f the research was to study Hedysarum of Southern Siberia in the nature (Kuznetskiy Alatau, the Altai-Sayan mountain system) and in introduction into the forest-steppe region o f West Siberia (Novosibirsk).

Four life-forms, two biomorph groups and ontogenesis are described. The coenopopulations age spectra are connected to implementation of a species to this or that biomorph group, growing conditions and anthropogenic influence. The species current state in the natural conditions was evaluated and possibility o f their preservation and economical utilization was given. When introduced in forest-steppe zone o f Western Siberia, almost all species (except for endemics) pass a long life cycle and their selected coenopopulations can be preserved in the botanic garden conditions.

Thus, Hedysarum only 3 o f all tested species (H. gmelinii, H. neglectum, H. alpinum) from forest-steppe and subtaiga belts are perspective for cultivation in forest steppe zone of Western Siberia. The introduction ofhigh-mountain and steppe species is difficult and demands sampling o f steadier populations. The negative outcomesare obtained at an introduction o f rare species, endemic of Minussinsk-Khakass steppes - H. minussinense. These data once again accent urgency of reservation of natural habitats of rare and endemic species.