GEOGRAPHICAL ANALYSIS OF XEROPHYTES FLORA OF THE RUSSIAN CAUCASUS

R S Magomadova; M A Taisumov; A S Abdurzakova; M A Astamirova; B A Khasueva; Kh R Khanaeva; Z I Shakhgirieva; F S Omarkhadzhieva

doi:doi:

UDC 332.362 (479)

GEOGRAPHICAL ANALYSIS OF XEROPHYTES FLORA OF THE RUSSIAN CAUCASUS

Published в Bulletin of KSAU · Issue 4, 2017 · Pages 194–203 · Rubrics: BIOLOGIChESKIE NAUKI

Received: 21.04.2017 Accepted: 23.04.2017 Published: 25.04.2017 Language of publication: RUS

Authors

R S Magomadova ¹ · M A Taisumov ² · A S Abdurzakova ³ · M A Astamirova ⁴ · B A Khasueva ⁵ · Kh R Khanaeva ⁶ · Z I Shakhgirieva ⁷ · F S Omarkhadzhieva ⁸

1 Chechen State Pedagogical University

2 Chechen State Pedagogical University

3 Chechen State Pedagogical University

4 Chechen State Pedagogical University

5 Chechen State Pedagogical University

6 Chechen State Pedagogical University

7 Chechen State Pedagogical University

8 Chechen State Pedagogical University

ABSTRACT

The aim of our research was to study geograph-ical elements, xerophytes flora of the Russian Cau-casus in connection with the questions of the gene-sis of knowledge. The study was based on field research expeditions, on the territory of the Russian Caucasus. The collection of herbarium material was carried out by a traditional route in combination with the detailed study of the most interesting floris-tic complexes. The main method of floristic data was fixing herbarium collections. In the course of the study the recording environmental observa-tions, height and features phytocenotic species was done. Geographical analysis of the Russian Cau-casus xerophytes flora, numbering 1 018 species of vascular plants was performed. Within the study the area of 6 groups of geoelements was marked as belonging to the highest hierarchical botanical-geographical zoning units. The analysis shows that among geographic elements in the studied flora the vast majority of the flora xerophytes makes boreal geoelement, i.e. 488 species (47.9 %), among them most of the Caucasian geoelements (326 species, 32 % of the total number of species and 66.8 % of boreal geoelements). In the second place are Old Mediterranean geoelements (290 species, 28.5 %), among them the largest number of species is rep-resented by Turan (48 species, 4.7 % of all species of flora xerophytes and 16.6 % of the ancient Medi-terranean geoelements). In the third place are tie geoelements (165 species, 16.2 %), where the largest number of species is represented by subcaucasian geoelements (68 species, 6.8 % of the entire flora and 41.8 % of binder geoelements). Common holarctic geoelements account for 70 species (6.9 %), Palaearctic dominates (57 spe-cies, 5.6 % of the entire flora and 81.4 from com-mon holarctic geoelements). Pluriregional geoelements and adventitious species represented a small amount (2 and 3 respectively). Consequent-ly, according to the predominant groups of studied geoelements the flora can be characterized as bo-real-Old Mediterranean binding.

KEYWORDS

geographical analysis xerophytes flora groups of habitats habitat types geograph-ical elements the Russian Caucasus

Information References

Authors:

1. Chechen State Pedagogical University

2. Chechen State Pedagogical University

3. Chechen State Pedagogical University

4. Chechen State Pedagogical University

5. Chechen State Pedagogical University

6. Chechen State Pedagogical University

7. Chechen State Pedagogical University

8. Chechen State Pedagogical University

Type:

Article

Pages:

from 194 to 203

Status:

Published

Subject area:

UDC 332.362 (479)

Language:

Russian

Keywords:

geographical analysis, xerophytes flora, groups of habitats, habitat types, geograph-ical elements, the Russian Caucasus

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