Abstract

The article is devoted to the study of the calcephyte flora of the Small-Amalatian depress. The main objective of the study is to carry out floristic analysis of limestone outcrops. The calcephytic flora was analyzed on the longitudinal element, biomorphological, taxonomic and ecological analyzes were carried out.

Highlights

  • The calciferous outcrops in Malo-Amalatskaya Depression in the area of the cryophyte black hemlock forests are distinguished by original flora and vegetation that is due to the substrate peculiarities, geographical location and history of the studied territory [1]

  • The fragmentary calciferous outbursts in the territory of the East Siberia that have been formed for millions of years are valuable to get to know the peculiarities of florogenesis of the North Asia, these are the localities where the relic elements of the Pleistocene cold ages have put down roots and preserved until now [2, 3, 4]

  • The calciferous flora of Malo-Amalatskaya Depression was studied by the staff members of the Botanics Department Buryat State University named after D

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Summary

Introduction

The calciferous outcrops in Malo-Amalatskaya Depression in the area of the cryophyte black hemlock forests are distinguished by original flora and vegetation that is due to the substrate peculiarities, geographical location and history of the studied territory [1]. The natural conditions of the studied area are characterized by ultracontinentality with the prevailing below-freezing average annual temperatures (from -2 ° to -6 °), short freezefree period (35-60 days), small amounts of precipitations primarily (up to 300 mm), falling in the second half of the summer and ubiquitous perpetually frozen ground. All these predetermine a high degree of peat formation in the studied territory in the background of the general relief evenness with interleaving low-rise steep slope ridges. By physical and geographical zoning, this territory belongs to the Transbaical mid-mountain-upland and Transbaical basins of the region, Vitimskaya upland province [5]

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