Communities of the class Festuco-Puccinellietea Soó ex Vicherek 1973 on the territory of Eurasia

2005 ◽  
pp. 59-75 ◽  
Author(s):  
V. B. Golub ◽  
D. N. Karpov ◽  
A. N. Sorokin ◽  
L. F. Nikolaychuk
Keyword(s):  
Plant Communities ◽  
Floristic Composition ◽  
Steppe Zone ◽  
Point Of View ◽  
The Black Sea ◽  
Zonal Vegetation ◽  
Eurasian Steppe ◽  
Rivers And Lakes ◽  
Don River ◽  
Vast Area

A survey and revision of the highest syntaxa of the class Festuco-Puccinellietea with the exception of plant communities attributed to the class Scorzonero—Juncetea gerardii are submitted. Communities of the Festuco-Puccinellietea are inland intrazonal stands of Eura­sia on solonetz soils, most common in flat lowlands as well on the rivers and lakes terraces that are briefly flooded in spring-time, and dry for the most part of the growing season. The diagnostic species combi­nation of the class is heterogeneous. It includes Arte­misia dwarf semi-shrubs of the Seriphidium section that are widely spread in the Iran-Turan subregion of the Sahara-Gobi area. These are also Limonium species that are mostly diverse in the Mediterranean region where from these taxa could move into inland areas with solonetz soils. The Festuca taxa of the section Festuca together with Poa bulbosa have probably moved on solonetz soils from adjoining steppes. The halophytic Puccinellia taxa of Xeratropis and Puc­cinellia sections could penetrate into Festuco-Puccinellietea communities from the banks saline pools. The floristic composition of the class in question gives the bright example of the net-shaped evolution of plant communities according to Whittaker (1980). The distri­bution area of Festuco-Puccinellietea communities lies within the Black Sea-Kazakhstan subregion of the Eurasian Steppe region according to the subdivision of the Ancient Mediterranean by Lavrenko (1962, 1970а). There are no communities that could be placed in Festuco-Puccinellietea in Central Asia, at least the authors were not lucky to find any signs of these in references. The closest to this class are the communities of Achnatheretea splendentis, however their floristic composition and ecology are significantly different. Within the whole area of their distribution the Festuco-Puccinellietea communities are neighboring with those of Scorzonero—Juncetea gerardii occupying shallow depressions, while in the steppe zone they occur close to zonal phytocenoses on placor belonging to Festuco-Brometea. There is no idea what kinds of semidesert zonal vegetation are contiguous with Festuco-Puccinellietea communities because it is still been poorly studied from the point of view of the Braun-Blanquet approach. Syntaxa that belong to Festuco-Puccinellietea are so far poorly studied on the vast area of Ukraine, as well as Krasnodar and Stavropol regions, the Don River basin, the territory between the Don and Volga rivers of Russia, and Northern Kazakhstan.

Meadows of north forest-steppe and subtaiga on the Tobol and the Irtysh watershed

2015 ◽  
pp. 129-147
Author(s):  
M. P. Tishchenko ◽  
A. Yu. Korolyuk ◽  
N. I. Makunina
Keyword(s):  
Plant Communities ◽  
Floristic Composition ◽  
Steppe Zone ◽  
Forest Steppe ◽  
West Siberian Plain ◽  
Meadow Steppe ◽  
Northern Forest ◽  
Xxth Century ◽  
Diagnostic Species ◽  
Zonal Vegetation

The Tobol and the Irtysh watershed occupy the western part of West-Siberian plain. Area studied covers latitudinal band between 55° and 57° n. l. It includes the southern part of subtaiga subzone and northern part of forest-steppe zone. This territory has been used for agriculture since XVIIth century. In the middle of XXth century the local landscapes were represented by endless arable lands alternated with tiny patches of forests on the watersheds and swamps and solonchaks prevailing at lowlands. In the end of XXth century the large areas of arable lands, especially in northern part of mentioned area, were abandoned. Nowadays this area is covered by fallow meadows on different stages of demutation. Vegetation studies of the region have started in the end of XIXth century. One of the best scientific works on local grasslands was written by B. N. Gorodkov (1915). The spectrum of natural plant communities demonstrates some changes fr om south to north. These changes enclose both zonal and intrazonal vegetation. The southern part of the area studied belongs to forest-steppe zone. Its zonal vegetation is represented by small-leaved forests, grasslands (steppe meadows) and meadow steppes. Zonal vegetation of northern part — subtaiga subzone — includes only small-leaved forests. The watershed grasslands replace the cut-off forests. Intrazonal vegetation of southern part consists of various grasslands on salty soils and swamps predominated in the northern part. The border of forest-steppe and subtaiga represents a combination of zonal and intrazonal communities disturbed by man. The goal of this article is to reveal the diversity of grasslands on drained soils of mentioned area. The analysis of 151 geobotanical relevйs obtained fr om subtaiga and northern forest-steppe of Omskaya and Tyumenskaya administrative districts has been carried out. The syntaxonomy of the Tobol-and-the Irtysh watershed grasslands is represented by 6 associations, 4 subassociations and 2 communities of 4 alliances, 4 order and 2 classes. Subtaiga and northern forest steppe are charac­terized by different spectra of grasslands. This can be explained by a presence of wide range of saline soils in forest-steppe and their absence in subtaiga. The floristic composition of grasslands of forest-steppes zone includes the plants tolerant to soil salinity such as Artemisia pontica, Galatella biflora, Plantago maxi­ma, Eryngium planum, Saussurea amara, Limonium gmelinii. The listed species are rare in subtaiga grasslands while Festuca pratensis, Phleum pratense, Agrostis gigantea of alliance Festucion pratensis are dominated in subtaiga grassland meadows. Steppe meadows of this territory are represented by two classes. Northern forest-steppe subzone demonstrates the northern lim it of Festuco-Brometea (alliance Galatellion biflorae of order Festucetalia valesiacae). The associations Galatello biflorae–Calamagrostietum epigeii and Galio borealis–Artemisietum ponticae occupy the zonal positions. Their communities are characterize by high activity of meadow-steppe mesoxerophytes that are the diagnostic of the class Festuco-Brometea. The meadow mesophytes dominate in subtaiga steppe meadows absolutely; meadow-steppe species are rare. They are marked with a lack of diagnostic species of alliance Galatellion biflorae. They are ascribed to the class Molinio–Arrhenatheretea, order Galietalia veri and alliance Trifolion montani as the communities Filipendula stepposa–Cenolophium denudatum and Astragalus danicus–Potentilla anserinа. Forest steppe meadows of alliance Aconito barbati–Vicion unijugae (order Carici macrou­rae–Crepidetalia sibiricae, class Molinio-Arrhena­theretea) are usual for northern, subtaiga subzone of the Tobol and the Irtysh watershed. Diagnostic species list of the communities belonging to the order Carici macrourae–Crepidetalia sibiricae on West-Siberian plain is impoverished in comparison with the uplands and the mountains of South Siberia wh ere this order was described by Ermakov et al. (1999). We have revealed 2 new associations of alliance Aconito barbati–Vicion unijugae: Aegopodio podagrariae–Brachypodietum pinnati and Dracocephalo ruyschiani–Heracleetum sibiricae. In subtaiga subzone communities of these associations occupy the small well drained habitats between mesophytic forests and arable lands. The first association unites the xerophytic forest meadows with Aegopodium podagraria dominance, occurring only on right bank of the Ishim River. The second one includes forest meadows of subtaiga widely spread on the Tobol and the Irtysh watershed. Association Dracocephalo ruyschiani–Heracleetum sibiricae comprises two subassociations: D. r.–H. s. typicum and D. r.–H. s.molinietosum caeruleae. One of diagnostic species of the last mentioned subassociation is Molinia caerulea that is a common species of boreal wet meadows of Europe. The eastern border of this species distribution is on the left riverside of the Ishim River. Meadows of alliance Festucion pratensis of order Arrhenatheretalia are characteristic only for subtaiga, they belong to two associations. Meadows of subassociation Cirsio setosi–Phleetum pratensis pastinacetosum sylvestris are widespread. They are wide spread over the abandoned arable lands and rather monotonous by their floristic composition. The floristic peculiarity of plant communities is abundance of diagnostic species of classes Artemisietea и Chenopodietea. Meadows of Agrostio tenuis–Festucetum pratensis Yamalov 2005 occur on sandy soils; they present one of the first stages of pine forest demutation. Some of species are not characteristic for typical subassociation described by S. M. Yamalov (2005), therefore the meadows of this association on the Tobol and the Irtysh watershed are referred to a new subassociation A. t.–F. p. senecionetosum jacobaea.

Reed (Phragmites australis agg.) dominated plant communities in the Lower Volga Valley

2015 ◽  
pp. 26-37
Author(s):  
V. B. Golub ◽  
V. V. Bondareva ◽  
A. N. Sorokin ◽  
L. F. Nikolaychuk
Keyword(s):  
Expert System ◽  
Phragmites Australis ◽  
Plant Communities ◽  
Floristic Composition ◽  
Original Data ◽  
Optimal Level ◽  
Point Of View ◽  
Original Structure ◽  
Volga River ◽  
Lower Volga

Plant communities with reed domination (Phragmites australis agg.) occupy the large areas in the Lower Volga Valley and especially in the river delta. We have set the task to reveal the diversity of these communities in the Lower Volga Valley. For this purpose, we applied the database that is registered in the Global Index of Vegetation-Plot Databases (GIVD) under the EU-RU–002 index (http://www.givd.info/) and includes 14871 relevés made during the period from 1924 to 2013. Communities with the dominance of reed were defined as such, if the coverage of this plant was more than 50 %. We have found 375 such relevés in the database. At first, one basal community, 3 associations and 3 subassociations with domination of Phragmites australis agg. were distinguished in the Lower Volga Valley. All processing and analysis of relevés were performed using the software package JUICE 7.0. (Tichý, 2002). The «Cocktail» method was applied to establish the sociological groups that indicate environmental conditions (Bruelheide, 2000). The expert system for selection from the database of relevés by means of these groups was created. It is allowed us to ascribe relevés to earlier distinguished associations, subassociations and basal community. 171 relevés have been identified by the expert system and they were assigned to association, subassociation or the basal community. 204 relevés were not referred to any association, subassociation or the basal community. We wanted to answer the question: are there among these 204 relevés, which could be interpreted as the new syntaxa, giving them the proper ecological characteristics? For this purpose, the cluster analysis of 204 relevés has been carried out. The optimal level of clustering was determined by calculating the index of “crispness of classification” (Botta-Dukát et al., 2005). The greatest “crispness of classification” was reached at allocation of 13 clusters. Consideration of the floristic composition of allocated groups had shown that 11 of them were the transitional plant communities among the earlier established syntaxa. Only two clusters were differed in rather original structure that we could explain by the influence of environment factors. We have identified them as new associations Rubio tataricae-Phragmitetum australis and Cynancho acuti-Phragmitetum australis. All associations with the dominance of Phragmites australis agg. distinguished in the Lower Volga Valley were included in the alliance Phragmition communis Koch 1926, order Phragmitetalia communis Koch 1926. In literary sources from the ecological point of view these syntaxa are defined as the wetland communities, which are closely linked to water bodies (Šumberová et al., 2011; Ermakov, 2012). However, in many cases this definition does not correspond to the ecology of plant communities with the dominance of reed in the lower reaches of the Volga River. Ecotops of these communities are flooded for up to 2–3 months in a year and then they dry out. In the autumn, the ground water level can drop to a depth of one meter (Golub et al., 2011). The plant satellites of the reed here are often mesophytic plants such as Rubus caesius, Calamagrostis epigeios, Phalaris arundinacea, Rubia tatarica, Althaea officinalis, and Rumex stenophyllus. Therefore, the inclusion of phytocoenosises with domination of the reed in the lower reaches of the Volga River in the alliance Phragmition communis is rather relative. A correct placement of these plant communities in the system of vegetation syntaxa of the arid areas can be made only if it is based on original data obtained from much bigger territory than the Lower Volga Valley. In future geobotanical studies, it is desirable to divide the aggregation of Phragmites australis agg. into smaller species taxa.

scholarly journals The floristic differentiation of microhabitats within kurgans in the desert steppe zone of southern Ukraine

2011 ◽  
Vol 77 (2) ◽  
pp. 139-147 ◽  
Author(s):  
Barbara Sudnik-Wójcikowska ◽  
Ivan I. Moysiyenko
Keyword(s):  
Low Frequency ◽  
Floristic Composition ◽  
Steppe Zone ◽  
The Black Sea ◽  
Desert Steppe ◽  
Steppe Species ◽  
Number Of Species ◽  
The North ◽  
Stellarietea Mediae ◽  
Meadow Species

Results of the studies on the floristic biodiversity of the kurgans in the Pontic desert steppe of the Black Sea Lowland (Kherson Region) are presented. Twenty-six of about 130 kurgans higher than 3 m, distributed over an area of approx. 1500 km<sup>2</sup>, were surveyed and the flora of 5 microhabitats within every kurgan (top, southern and northern slope, southern and northern foot) was examined. The richness of the kurgan flora is estimated at 305 species. Species of alien origin constituted 23% of the total flora, which indicates limited anthropogenic influence. Species of two classes, <em>Festuco-Brometea</em> and <em>Stellarietea mediae</em> were predominant, which also confirmed the semi-natural character of the kurgan flora. The lowest number of species was recorded on top, which was relatively rich in synanthropes, particularly therophytes (<em>Stellarietea mediae</em>). The north side was richer in species than the south side of the kurgans. Steppe species were the most stable and important component of the flora of the slopes (45-47% of the species represented the class <em>Festuco-Brometea</em>). The total flora of the foot contained more species and was more diversified than the flora of the slopes (although the mean number of species was similar in both habitats), but each species occurred at low frequency. There was a higher proportion of species which were introduced from the area surrounding the kurgans, e.g. weeds, halophytes, meadow species, as well as trees which are rarely found in the desert steppe zone. In spite of the small size of the kurgans, significant differences between the floristic composition of the various microhabitats were detected.

scholarly journals A Chronology of the Scythian Antiquities of Eurasia Based on New Archaeological and 14C Data

Radiocarbon ◽  
2001 ◽  
Vol 43 (2B) ◽  
pp. 1085-1107 ◽  
Author(s):  
A Yu Alekseev ◽  
N A Bokovenko ◽  
Yu Boltrik ◽  
K A Chugunov ◽  
G Cook ◽  
...  
Keyword(s):  
Time Scale ◽  
Steppe Zone ◽  
Point Of View ◽  
Eurasian Steppe ◽  
Radiocarbon Data ◽  
East And West ◽  
Different Parts

The paper is compares the chronology of the monuments of the Scythian epoch located in the east and west of the Eurasian steppe zone on the basis of both archaeological and radiocarbon data. The lists of 14C dates for the monuments located in different parts of Eurasia are presented according to the periods of their existence. Generally, the 14C dates are confirmed the archaeological point of view and allow us to compare the chronological position of the European and Asian Scythian monuments on the united 14C time scale.

scholarly journals Miocene carpological floras of the Konin region (Central Poland)

2017 ◽  
Vol 57 (1) ◽  
pp. 39-100 ◽  
Author(s):  
Rafał Kowalski
Keyword(s):  
Plant Communities ◽  
Brown Coal ◽  
Floristic Composition ◽  
Open Pit ◽  
Raised Bog ◽  
Open Pit Mines ◽  
Zonal Vegetation ◽  
Plant Remains ◽  
First Time ◽  
Warm Temperate

AbstractCarbonaceous, three-dimensionally preserved macroscopic plant remains from the Lubstów, Gosławice and Pątnów brown coal open-pit mines are described and illustrated, providing a comprehensive elaboration of the middle Miocene carpological floras of the Konin region. The diaspores represent the following families: Pinaceae, Sciadopityaceae, Cupressaceae, Annonaceae, Cabombaceae, Nymphaeaceae, Araceae, Typhaceae, Cyperaceae, Vitaceae, Rosaceae, Rhamnaceae, Fagaceae, Myricaceae, Cornaceae, Nyssaceae, Symplocaceae, Ericaceae, Araliaceae, and Adoxaceae. Forty-two species were recognised or documented for the first time in the Konin region. Two genera, three species and three morphotypes are described as new taxa.Most of these plant remains represent azonal vegetation. Ericaceous bogs, pine bogs and mixed coniferous bogs, accompanied byGyptostrobusswamp forests and various aquatic plant communities, are suggested as the most widespread vegetation types. Remains representing mesophytic, zonal vegetation, resembling extant evergreen broad-leaved and mixed mesophytic forests, are sparse. ASciadopitysraised bog, a mixed coniferous bog subtype, was one of the important biomass sources forming the brown coal of the I-Middle Polish seam group. Other bog types recognised in Lubstów presumably also played a part in this process. Wildfire is suggested as an important factor controlling the Miocene vegetation of the Konin region.The floristic composition and lithostratigraphy indicate the Badenian age (16.3–12.8 Ma) for the studied floras, but radiometric data suggest that two Lubstów floras are older and one is younger than 13.6 Ma. Biostrati-graphically, Lubstów floras were correlated with the Klettwitz – Salzhausen floristic complex. Based on several climatic indicators and biostratigraphic correlation, the climate is estimated to have been humid, warm-temperate or subtropical.The upper Miocene lower Rhenish Basin floras are the most comparable in floristic and plant communities’ composition. Tropical – subtropical, Mediterranean and extinct genera represent approximately 40% of the genera identified in Lubstów.

Neolithic and Bronze Age cultural communities of the steppe zone of the USSR

Antiquity ◽  
1989 ◽  
Vol 63 (241) ◽  
pp. 793-802 ◽  
Author(s):  
V. Dergachev
Keyword(s):  
Bronze Age ◽  
Steppe Zone ◽  
The Black Sea ◽  
Forest Zone ◽  
The Caucasus ◽  
The North ◽  
Eurasian Steppe ◽  
Historical Factors ◽  
Soviet Central Asia ◽  
Distinguishing Features

The culture-historical development of Neolithic and Bronze Age communities under Eurasian steppe conditions is indissolubly linked with the establishment and development of early forms of productive economy, and displays a number of distinguishing features, which are the product of both natural and historical factors.Within the USSR, the steppe extends from the mouth of the Danube to the upper reaches of the Ob and the Altai mountains (Milkov 1977). To the north, the steppes naturally grade in to the forest zone to form a belt of transitional foreststeppe landscape. To the south, the steppe is bounded by the coast of the Black Sea, the foothills of the Caucasus and beginning in the Lower Volga region the semi-deserts and, further south, deserts of Soviet Central Asia.

East Black Sea forb-bunchgrass steppes of the Don River basin (within Rostov region)

2012 ◽  
pp. 27-47
Author(s):  
O. N. Demina
Keyword(s):  
Black Sea ◽  
Floristic Composition ◽  
The Black Sea ◽  
East European ◽  
Community Associations ◽  
Azov Sea ◽  
Significant Difference ◽  
Steppe Communities ◽  
Don River ◽  
Sea Area

The studied steppe communities to the east of the Black Sea were attributed to the alliance Festucion valesiacae and two suballiances: Festuco rupicolae—Stipenion pennatae and Phlomenion pungentis. A comparison of the floristic composition of the described associations: Trifolio alpestris—Stipetum tirsae, Artemisio marschallianae—Stipetum dasyphyllae and Bellevalio sarmaticae—Stipetum pennatae, belonging to the suballiance Festuco rupicolae—Stipenion pennatae, and communities of the east European meadow steppe, shows their significant difference. The described associations are neighboring ones to these of the suballiance Phlomenion pungentis which represents the true steppes of the Azov Sea area, Donetsk oblast (Saitov, Mirkin, 1991 : 92). Plant community associations such as Plantagini urvillei—Stipetum tirsae and Stipetum lessingianae were attributed to the suballiance Phlomenion pungentis.

Transformation of the composition and horizontal structure of steppe communities in East Mongolia under anthropogenic influence and its reflection on large-scale maps

1995 ◽  
pp. 22-41
Author(s):  
V. N. Khramtsov ◽  
P. P. Dmitriev
Keyword(s):  
Plant Communities ◽  
Vegetation Cover ◽  
Large Scale ◽  
Steppe Zone ◽  
State Farm ◽  
Actual Structure ◽  
Horizontal Structure ◽  
Zonal Vegetation ◽  
Animal Populations ◽  
Fallow Lands

In 1989–1990 participants of the joint Soviet-Mongolian Complex Biological Expedition conducted the works on the estimation of the present-day state of nature ecosystems in Mongolia. The anthropogenic dynamics (transformation) of steppe ecosystems was studied in the East Steppe Stationary in the territory of state-farm Tumen-Tsogt in the Sukhebator District. During these works the series of maps was compiled for the territory of state-farm and for separate key plots (S. 1 : 1 000 000; 1 : 200 000; 1 : 100 000) showing the anthropogenic change of vegetation of animal populations, of soils and of ecosystems as a whole. The article represents some results of the investigations on transformation of vegetation cover under grazing the leading anthropogenic factor in Mongolia. The basic map is the vegetation map in scale of 1 : 100 000 (fig. 1, fragment). The legend of this map reflects the relations between vegetation and relief and soils. The highest divisions of the legend represent the vegetation of major forms of relief: «Vegetation of low mountains», «Vegetation of flat alluvial-deluvial plains», etc. These divisions subordinate the subzonal and altitudinal-subbelt types: «Rich in forbs grass meadow steppes on the mountain chernoziom soils», «Forb and forb-bunch grass steppes on the dark-chestnut soils», etc. The communities and their combinations, belonging to the definite edaphic variants of zonal vegetation, are taken as mapping units. 7 edaphic variants are distinguished in the whole. In the legend the concrete series of transformation of vegetation cover are given. Numbers 1–17 represent the undisturbed communities. The figure indices at the numbers (for instance: 10'–104) differentiate communities of the same digression serie - fr om less to most degradated ones. In the case of fallow lands such indices indicate the stage of reconstruction – from less to the most reconstructed vegetation (18–185). It has been paid attention to the heterogeneity of vegetation that is reflected in the map legend in characterizing the map divisions. The attention has been attracted also to the pattern of the horizontal structure of these complexes. The classic complexes of plant communities are not characteristic of the steppe zone of Mongolia, especially of its central and eastern regions as they are characteristic, for instance of the Kazakhstan steppes wh ere their distribution and development are caused by the processes of salt accumulation and salt removing from soils. In Mongolia the heterogeneity of vegetation and soil cover is conditioned by the burrow activity of rodents. The patterns of horizontal structure of phytocoenotic complexes appeared to be diverse and peculiar of definite landscapes depending on animal population and environmental conditions. It was ascertained that at grazing not only the phytocoenotic parameters (species composition, coverage, abundance, etc.) are transformed but also community dimensions, their proportion in complexes and the pattern itself of these complexes. It was interesting to reveal the transformation series of these patterns in complex biogeocoenoses. Fig. 2 shows the fragment of map representing the horizontal structure of biogeocoenoses, s. 1 : 1 000 000. The legend of the map is given in the table form (see table). The map shows both the reconstructed and the actual structure of vegetation cover. The undisturbed and slightly disturbed structural types are given by the main numbers (1–12) with figure index 1 (V–12'). The structures disturbed in various extents are shown by figure indices at the main number (for instance, 22–24). The indices correspond the degree of disturbance: 2 – middle disturbed, 3 – strongly disturbed, 4 – the most disturbed. The schematic drawings of horizontal structure of the natural and transformed complexes of plant communities are given in figure 3. Figure 4 proposes the fragment of analytic map of horizontal structure of biogeocoenoses. This map shows the actual pattern of plant community complexes. The last map (fig. 5) represents the percentage contribution of zoophytochoras in background undisturbed vegetation in various landscape elements.

Plant communities on rock outcrops in the northwest part of the Black Sea Caucasian coast

2009 ◽  
pp. 3-14
Author(s):  
V. B. Golub ◽  
N. A. Grechushkina ◽  
A. N. Sorokin ◽  
L. F. Nikolaychuk
Keyword(s):  
Plant Communities ◽  
Black Sea ◽  
Soil Cover ◽  
Geographical Location ◽  
The Black Sea ◽  
Rock Outcrops ◽  
Exact Test ◽  
Main Factors ◽  
Phi Coefficient

The classification of petrophytic vegetation of coastal steeps was proposed for the Northwest Cauca­sian coast of the Black Sea using the Braun-Blanquet approach. The main factors that influence the deve­lopment of vegetation in question are abrasion and denudation sea coast processes. The coastal steeps in study area are formed by carbonate flysch. The plant communities occur on rocky slopes with poorly deve­loped soil cover, fine stone chips as well as rock crevices. Nine associations and four communities without syntaxonomic rank were documented in the table and described with respect to their phyto­socio­logical affinities, ecology, and geographical location. Diagnostic species of syntaxa were established using phi-coefficient calculations of fidelity and Fisher’s exact test. In addition, the results of relevé ordination were given using the algorithm of non-metric multi­dimensional scaling (NMS) that is embedded in PC-ORD 5.0 software package.

Geobotanical studies at the Caucasus: a review of materials of the International Conference “Flora and conservation in the Caucasus: history and current state of knowledge” (Pyatigorsk, May 22–25, 2019)

2019 ◽  
pp. 91-94
Author(s):  
T. M. Lysenko ◽  
V. Yu. Neshatayeva ◽  
Z. V. Dutova
Keyword(s):  
Plant Communities ◽  
Aquatic Vegetation ◽  
Plant Cover ◽  
Floristic Composition ◽  
Current Status ◽  
Wide Field ◽  
The Caucasus ◽  
International Conference ◽  
Rare And Endangered Species ◽  
Current State

The International conference “Flora and conservation in the Caucasus: history and current state of knowledge” dedicated to the 130-year anniversary of the Perkalsky Arboretum took place at 22–25 of May 2019 in Pyatigorsk (Stavropol Territory) on the base of the Pyatigorsk Museum of local lore and natural history. The participants were from 11 cities of Russia and 7 Republics of the Caucasus and represented 14 institutions. Proceedings of the conference were published by the beginning of the meeting the book of abstracts includes 49 papers on the study of vascular plants, bryophytes, lichens and fungi, plant communities, as well as the protection of rare and endangered species, unique plant communities, and ecological problems in the Caucasus. The following geobotanical topics were highlighted in 13 papers: forest communities (3 reports), meadow and steppe vegetation (2), xeric open forests (2), communities of ecotone areas (1), structure of populations of rare plant species (3), as well as the history and current status of nature protected areas (2). The great emphasis has been focused on the study of floristic composition and plant populations. Thus, the conference showed that very few studies от vegetation are currently carried out in the Caucasus, and a lot of districts are not affected by the research. The greatest attention is paid to forest vegetation while meadow, steppe, alpine heath and xerophytic communities are studied rather poorly. Besides, there are “white spots” — mire, floodplain and aquatic vegetation. In nowadays, when the anthropogenic impact on the plant cover of the Caucasus is intensively increasing, it is especially important to study natural undisturbed communities preserved in protected natural areas. Another important issue is the conservation of the unique vegetation cover of the whole Caucasus. Thus, the study of vegetation of this region opens a wide field for researchers using various methods of modern plant science.

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