scholarly journals On the Characteristics of the Leading Dendro Flora Families Western Tenirtau (Tien Shan)

2021 ◽  
Vol 58 (2) ◽  
pp. 1470-1479
Author(s):  
Sikhymbayev A. E. Et al.

In terms of its plant richness, the Tien Shan occupies a special place among the mountain systems of Central Asia. According to many scientists, the Tien Shan is conditionally divided into three parts - western, central (inner) and northern. In the geographical nomenclature, onomastics and toponomics of modern sovereign Kazakhstan, the original name Tanirtau is used instead of the term Tien-Shan. Western Tanirtau is the most floristically rich mountain ecosystem in Kazakhstan, where the bioclimatic zones from deserts to glaciers are represented in all their diversity. The generic coefficient of the flora of Western Tanirtau is the highest in Kazakhstan and reaches 4.12, which indicates a high degree of autonomy and originality of the flora of Western Tanirtau. In terms of its plant richness, the Tien Shan occupies a special place among the mountain systems of Central Asia. According to many scientists, the Tien Shan is conditionally divided into three parts - western, central (inner) and northern. In the geographical nomenclature, onomastics and toponomics of modern sovereign Kazakhstan, the original name Tanirtau is used instead of the term Tien-Shan. Western Tanirtau is the most floristically rich mountain ecosystem in Kazakhstan, where the bioclimatic zones from deserts to glaciers are represented in all their diversity. The generic coefficient of the flora of Western Tanirtau is the highest in Kazakhstan and reaches 4.12, which indicates a high degree of autonomy and originality of the flora of Western Tanirtau. Special report on dendroglaciological currently missing. The essence of the floristic analysis given in this paper is to identify the leading families of the dendroflora of Western Tanirtau. The species composition of tree and shrub plants collected and recorded in all natural, anthropogenic and urbanized ecosystems of Western Tanirtau were the objects of study. Research objectives: inventory of the species composition of the dendroflora of Western Tanirtau; compilation of the floral spectrum of the dendroflora; identification of the leading families of the region.

2021 ◽  
Author(s):  
Arkadiusz Nowak ◽  
Sebastian Świerszcz ◽  
Sylwia Nowak ◽  
Marcin Nobis

AbstractThis paper presents the results of phytosociological research on scree vegetation of the Pamir and south-western Tian Shan. We collected 222 phytosociological relevés during field studies conducted in 2015–2019, applying the Braun-Blanquet approach. We identified 21 plant communities on mobile and stabilized screes of colluvial cones, aprons and fans, inhabiting mainly the montane and alpine belts in several ranges (e.g. Peter the First, Alichur, Shugnan, Shachdarian, Darvaz, Rushan, Vanch, Fergana, Kyrgyz and Terskey ranges). As a result we provide the first comprehensive hierarchical syntaxonomic synopsis of scree communities at montane and alpine elevations in the eastern Middle Asia. The collected vegetation relevés represent the majority of the variation among the phytocoenoses of gravel, pebble, cobble and rock block slides and screes in the montane and alpine belts. As a result of field studies and Twinspan analyses, nine associations were identified on screes of the Pamir and western Tian Shan. All these communities were assigned to the Sileno brahuicae-Lactucetalia orientalis Nowak et al. 2021. Additionally, within the nitrophilous compact gravel screes one subassociation of Corydalidetum kashgaricae trigonelletosum gontscharovii was distinguished. In the most arid zone two additional plant associations and one subassociation were identified in gravelly semi-deserts zone. The main factors determining the species composition of the studied associations are scree mobility, rock particle size, elevation above sea level and slope inclination. Our research revealed considerable diversity of scree habitats of montane and alpine belts what might be astonishing regarding harsh environment of this mountainous territory. However, a great number of lineages that evolved here and particularly rich species pool of this habitat in Middle Asia facilitate remarkable diversity among vegetation of taluses and screes. The distinctiveness of species composition is additionally enhanced by high degree of endemism of chasmophytic habitats in the eastern part of Middle Asia. Despite recent developments, the prominent chasmophytic vegetation of Middle Asia still needs thorough studies focused on its relationship to semi-desert, tall-forb and petrophytic communities of high mountains of the Pamir, Hindu-Kush, Kunlun and Central Tian Shan.


1995 ◽  
Vol 100 (B10) ◽  
pp. 20321-20343 ◽  
Author(s):  
Albert A. Lukk ◽  
Sergei L. Yunga ◽  
Vladimir I. Shevchenko ◽  
Michael W. Hamburger

Geology ◽  
1990 ◽  
Vol 18 (2) ◽  
pp. 128 ◽  
Author(s):  
B. F. Windley ◽  
M. B. Allen ◽  
C. Zhang ◽  
Z-Y Zhao ◽  
G-R Wang
Keyword(s):  

2007 ◽  
Vol 56 (3-4) ◽  
pp. 311-327 ◽  
Author(s):  
S.S. Marchenko ◽  
A.P. Gorbunov ◽  
V.E. Romanovsky

2009 ◽  
Vol 58 (1) ◽  
pp. 55-69 ◽  
Author(s):  
Stefan Meng ◽  
Matthias H. Hoffmann

Abstract. LOŽEK (1986) is of the opinion that Pupilla loessica has been found recently in Central Asia. The aim of this study is to provide some initial, concrete contributions to the discussion of this subject. It should be understood as a basis for further investigations. During recent visits on site between 1995 and 2006 in Central Asia in the Russian Altay, in Northern Mongolia, in the Baikal region and in the Tien Shan, numerous recent malacocenoses were examined. In many places evidence was found of a form of Pupilla which had not previously been described from this region; its shell morphology cannot be distinguished from Pupilla loessica. Its distribution is concentrated in the strongly continental Khrebet Saylyugem in the South Eastern Altay. The probability of the occurrence of Pupilla loessica in Central Asia is supported, apart from the shell morphology criteria, by the preference of this species for more continental types of habitat with average annual temperatures markedly below 0° C and the corresponding accompanying fauna adapted to the cold, including e.g. Columella columella, Vertigo genesii, Vallonia tenuilabris, etc., which make these fauna easily comparable to the Pleistocene glacial associations of the Central European region.


2012 ◽  
Vol 6 (2) ◽  
pp. 385-396 ◽  
Author(s):  
Boris B. Chen ◽  
Leonid G. Sverdlik ◽  
Sanjar A. Imashev ◽  
Paul A. Solomon ◽  
Jeffrey Lantz ◽  
...  

2018 ◽  
Vol 24 (1-2) ◽  
pp. 467-532
Author(s):  
Irina Arzhantseva ◽  
Svetlana Gorshenina

AbstractThe archaeological site of Dzhankent, in addition to its geographical position and the wealth of finds from there, occupies a special place for several other reasons, too. It was the first site in Central Asia to be excavated (1740-1741) and photographed (1858), and it has recently become one of the national symbols of independent Kazakhstan (since 1991). Over the period of more than 270 years during which it has been studied, Dzhankent has been approached by generations of explorers, excavators and researchers from different theoretical positions and with different aims which have corresponded more or less to political or geopolitical programmes. The aim of this contribution is, on the one hand, to show how the various actors who worked at this site related to one another and to the various types of power (local, Tsarist, Soviet), and on the other hand, to analyze the changes in the theoretical approaches of these actors. At the same time, it is important to trace the transformation of Dzhankent, in its pre-colonial, colonial and post-colonial contexts, into a memorial supposedly linked to imperial or national identities which, in turn, had been forged around a constructed past.


Zootaxa ◽  
2020 ◽  
Vol 4790 (1) ◽  
pp. 198-200
Author(s):  
VITALY M. SPITSYN ◽  
GRIGORY S. POTAPOV

Seven Arctiine genera have recently been synonymized with the genus Chelis Rambur, 1866 using a comprehensive multi-locus phylogeny (Rönkä et al. 2016). The genus Chelis s. str. contains nine species, the ranges of which cover temperate and subtropical areas of Eurasia from the Iberian Peninsula to the Pacific Ocean coast (Dubatolov & de Vos 2010, Ortiz et al. 2016). Two species, i.e. Chelis ferghana Dubatolov, 1988 and C. strigulosa (Böttcher, 1905), are endemic to the Tien Shan Mountain Range. These taxa can be distinguished by morphological differences in the apical part of the valva. 


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