scholarly journals Декоративні квіткові рослини в структурі урбофлори Лісостепу України

2016 ◽  
pp. 36-43
Author(s):  
А. Б. Марченко
Keyword(s):  
Urban Ecosystems ◽  
Steppe Zone ◽  
Life Forms ◽  
Taxonomic Composition ◽  
Environmental Indicators ◽  
Class Numbers ◽  
Forest Steppe ◽  
Floristic Diversity ◽  
Terrestrial Plants ◽  
Number Of Species

За результатами моніторингу флористичного різноманіття декоративних квіткових рослин у структурі озеленення урбоекосистем Лісостепу України уточнено їх таксономічний склад, а саме представлені 118 видами із 58 родів 31 родини 16 порядків 2 класів. Домінуюче місце займає клас Dicotyledones, який представляє 66,1 %, налічує 14 порядків, серед яких за кількістю видів переважає Asterales – 34 % видів. Клас Liliopsida представлений двома порядками, серед яких за кількістю видів переважає Asparagales Bromhead (70 %). За класифікацією І. Г. Серебрякова декоративні квіткові культури представлені наземними трав’яними (98,8 %), деревними життєвими формами (1,2 %), які в свою чергу представлені монокарпічними (71 %) та полікарпічними травами (27,8 %), кущами (1,2 %). За класифікацією X. Раункієра, декоративні квіткові культури представлені життєвими формами: терофіти (71 %), криптофіти (27,8 %),фанерофіти (1,2 %). За екологічними показниками всі наземні рослини відносно до вологи поділяються на мезофіти (52 %), ксеромезофіти (24 %), ксерофіти (21 %), мезогігрофіти (3 %); відносно до інтенсивності освітленості – геліофіти (81 %), сциофіти (19 %). According to the results of monitoring of the floristic diversity of ornamental floral plants in the structure of urban ecosystems’ greenery of Forest-Steppe zone of Ukraine we have clarified their taxonomic composition. Decorative floral plants in the structure of urban flora are presented by 118 species from 58 genera 31 families 16 orders of 2 classes. Dicotyledones class dominates in terms of quantity, representing 66,1 %, and the Liliopsida class represents 33,9 % of species. Dicotyledones class numbers 14 orders, in which Asteralesorder occupies a dominant place on the number of species (34 % of species), other orders of Saxifragales Dumort are represented by 13 %, Brassicales Bromhead – by 8,9 %, Ericales – by 7,6 %, Lamiales Bromhead, Rosales – by 6,4 %. Other orders are represented by 1–2 species. Liliopsida class is represented by two orders, among which Asparagales Bromhead dominates in terms of the number of species (70 %). According to the classification by I. G. Serebryakov, decorative floral plants are represented with herbal terrestrial plants (98,8 %), tree life forms (1,2 %), which are represented with monocarpic (71 %) and polycarpic herbs (27,8 % ), shrubs (1,2 %). According to the classification by H. Raunkiyer, decorative floral crops are represented by the following forms: therophytes (71 %), cryptophytes (27,8 %), tall aerial plants (1,2 %). According to all environmental indicators, in terms of moisture, all terrestrial plants are divided into mesophytes (52 %), xeromesophytes (24 %), xerophytes (21 %), mesohygrophytes (3 %); in terms of light intensity – heliophytes (81 %), sciophytes (19 %).

scholarly journals Taxonomic composition of weed vegetation in the southern and middle Urals and zonal features of its control in maize crops

2020 ◽  
Vol 222 ◽  
pp. 03024
Author(s):  
A.E. Panfilov ◽  
N.I. Kazakova ◽  
N.N. Zezin ◽  
E.L. Tikhanskaya ◽  
P.Yu. Ovchinnikov
Keyword(s):  
Steppe Zone ◽  
Taxonomic Composition ◽  
Mountain Forest ◽  
Forest Steppe ◽  
Middle Urals ◽  
North West ◽  
The North ◽  
Northern Areas ◽  
Temperate Soil ◽  
Segetal Flora

As a result of expeditionary-route studies, the impoverishment of the composition of the segetal flora in maize crops was established when moving from the North-West to the South-East of the Ural region: from 37 species in the forest-meadow and mountain-forest zones to 10 in the steppe zone. Zonal features of the composition of weed communities associated with the hydrothermal gradient consist in the mutual substitution of annual monocotyledonous and dicotyledonous species with a stable contribution of perennial dicotyledons, as well as the replacement of mesophytic weeds with xerophytic species of the same families. A comparison of cross-spectrum herbicides effectiveness in the forest-steppe and forest-meadow zones showed the advantages of a post-emergent preparation with soil effect of Meister Power. In temperate soil fertility in the Southern area of the region, it is economically feasible to use post-emergent herbicides without soil effect, in Northern areas with stable moisture – soil ones.

scholarly journals Short Communication: Proportion faunal assemblages of carnivorous mammals in geoecological districts of Mordovia, Russia

2021 ◽  
Vol 22 (10) ◽  
Author(s):  
Alexey Andreychev
Keyword(s):  
Short Communication ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Natural Areas ◽  
Study Region ◽  
Faunal Assemblages ◽  
Number Of Species ◽  
The Family ◽  
Carnivorous Species ◽  
A Priority

Abstract. Andreychev A. 2021. Short Communication: Proportion faunal assemblages of carnivorous mammals in geoecological districts of Mordovia, Russia. Biodiversitas 22: 4625-4632. In the forest-steppe area, carnivorous mammals are represented by species of different faunistic assemblages. This circumstance makes the study region a priority since the species of which faunistic assemblages prevail is of interest. Fifteen carnivorous species have been identified in the territory of Mordovia. Among them, the family Mustelidae predominates in terms of the number of species. The species are found in all geoecological districts, but their distribution is uneven. The most notable species in the region are located in coniferous and broad-leaved forests (40%) and species widely distributed in several natural areas (40%). 13% of the total number of noted species belong to the taiga fauna types. The steppe type of fauna is represented by only 7% of the total number of recorded species. For each geoecological region, the fauna features are given, and a list of rare and exciting species is given. The forest-steppe zone to which Mordovia belongs is compared by the fauna of carnivorous mammals with other regions from three typical faunal assemblages.

scholarly journals Study of floristic structure of the territory using family range in the Sok River basin (Samara Region, Zavolzhye, forest-steppe zone)

2016 ◽  
Vol 5 (1) ◽  
pp. 26-31
Author(s):  
Anastasia Viktorovna Ivanova ◽  
Natalia Viktorovna Kostina
Keyword(s):  
Steppe Zone ◽  
Research Area ◽  
Ecological Approach ◽  
Forest Steppe ◽  
Individual Sample ◽  
Elementary Unit ◽  
Number Of Species ◽  
The Family ◽  
Degree Of Similarity ◽  
Floristic Structure

Ecological approach to the study of flora implies an integral flora unit called elementary flora (EF), which is usually regarded as the elementary unit of floristic division. Identification of the minimum-range of EF is prerequisite for the research of flora of any territory. The aim of this research is to identify the number of EF in the research area (floral patterns) by comparing the values of certain parameters of the family range of flora in four minimum-ranges. The basin of the river Sok is the research area. Its landscape zoning varies in different literature sources. Florae of the four minimum-range habitats are formed on territorial basis with reference to the existing floristic descriptions. The following parameters of the family range of flora in four minimum-ranges were used: establishment of the order of the first triad of families depending on number of species in a sample, percentage of monotypic families and percentage of species in the top ten families. The considered values of florae parameters in the sample areas corresponding to the minimum-range habitats show a certain degree of similarity. The largest differences were observed in the study of the formation of top three leading families, depending on the number of species. This indicator reflects the peculiarities of individual sample areas due to the variety of intra-landscape. The authors reach a conclusion concerning the conditional affiliation of the researched territory to one EF. The conclusion is based on the analyzed parameters of the family range of flora of all minimum-ranges as well as their floristic descriptions

scholarly journals Ecological and taxonomic analysis of the coastal flora of the Auliekol region (Kostanay region)

2020 ◽  
Vol 99 (3) ◽  
pp. 83-90
Author(s):  
Saule Koblanova ◽  
◽  
Yulia Rogozhkina ◽  
Keyword(s):  
Detailed Analysis ◽  
Life Forms ◽  
Taxonomic Composition ◽  
Coastal Vegetation ◽  
Ecological Groups ◽  
Taxonomic Analysis ◽  
Number Of Species ◽  
Natural Lakes ◽  
Biodiversity Maintenance ◽  
Species Being

The study of flora is an important aspect of biodiversity maintenance and monitoring. Kostanay region is not a sufficiently explored region requiring a detailed analysis of coastal vegetation. During research in 2016–2019 the composition of the coastal flora of 6 geographical points was studied: rivers (Ubagan, Karasu) and natural lakes (Teacher, Solyenoe No. 1, Solyenoe No. 2, Kairankol). As a result of studies conducted on the territory of the Auliekol district of the Kostanay region, 106 species of coastal flora from 84 genera and 37 families were found. The taxonomic composition is characterized by dominance among the families Asteraceae, Poaceae and Fabaceae, among the genera — Artemisia, Plantago, Astragalus. In the Auliekol region, plants of the steppe cenotic group prevail, which is explained by the location of the study area within the Turgai lodge. In the surveyed territory, 7 ecological groups of plants were identified, with the maximum number of species being xero-mesophytes (33 taxa), the minimum — xerophytes (1 species). Among life forms, only 4 groups were noted, of which the maximum falls on perennial herbaceous plants (78 species). Uneven distribution of plants in the surveyed reservoirs was revealed. The maximum amounts falls on the floodplain of the river Ubagan, the minimum — on the lake Teacher.

scholarly journals Zonal character of the flora of kurgans in central and southern Ukraine

2010 ◽  
Vol 17 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Barbara Sudnik-Wójcikowska ◽  
Ivan Moysiyenko
Keyword(s):  
Selection Criteria ◽  
Steppe Zone ◽  
Life Forms ◽  
Forest Steppe ◽  
Desert Steppe ◽  
The West ◽  
The North ◽  
Vegetation Zones ◽  
Floristic Studies ◽  
Southern Ukraine

Zonal character of the flora of kurgans in central and southern UkraineIn the years 2004-2010 floristic studies were carried out on kurgans in 4 different climatic/vegetation zones: 3 steppe zones (west and central Pontic desert steppe, west Pontic grass steppe, west and central Pontic herb-rich grass-steppe) and a forest steppe zone. Among the 450 kurgans surveyed, 106 barrows met the selection criteria. The species composition and the contribution of different life forms to the flora of kurgans changed along the north-south gradient. Jaccard's similarity coefficient and Wards clustering method were used to compare the qualitative composition of flora in particular zones. The results of this comparison confirmed floristic differences between kurgans located in the four zones. Kurgans in the desert steppe zone proved to have the most distinct flora among the floras considered. The biggest similarities were found between the flora of kurgans in the forest steppe zone and that of barrows in the west and central Pontic herb rich grass steppe.

scholarly journals BIOLOGICAL FEATURES OF THE COTTON MOTH UNDER THE CONDITIONS OF WARMING CLIMATE

2020 ◽  
Author(s):  
E.V. Chenikalova ◽  
◽  
V.A. Kolomytseva ◽  
◽  
◽  
...  
Keyword(s):  
Steppe Zone ◽  
Agricultural Landscapes ◽  
Forest Steppe ◽  
Floristic Diversity ◽  
The Caucasus ◽  
Biological Features ◽  
The North ◽  
Current Period ◽  
Warming Climate ◽  
Wide Range

The cotton bollworm is one of the most important polyphagous pests of agricultural crops with a wide range and food connections. The increase in the number of the pest, the development of additional facultative generations, the expansion of its range to the north to the forest-steppe zone of Russia, as well as the rise to the Caucasus mountains, occurring in the current period, is due to climate warming and a number of agro-ecological reasons. Measures are proposed to regulate the number of pests, aimed at preserving the biotic and floristic diversity of agricultural landscapes.

scholarly journals The flora peculiarities of the Melekess-Stavropol physiographic region

2017 ◽  
Vol 6 (4) ◽  
pp. 47-53
Author(s):  
Anastasiya Victorovna Ivanova ◽  
Natalia Victorovna Kostina ◽  
Tatyana Mikhajlovna Lysenko ◽  
Olga Victorovna Kozlovskaya
Keyword(s):  
Steppe Zone ◽  
Forest Steppe ◽  
The Third ◽  
Number Of Species ◽  
The Family ◽  
Third Stage ◽  
Stavropol Region ◽  
Geographical Position ◽  
Accumulation Curves ◽  
Physiographic Regions

We publish the results of a three-stage study of the floristic heterogeneity of the Melekess-Stavropol physiographic region located on the territory of the Samara and Ulyanovsk Regions. The area belongs to the forest-steppe zone of the Trans Volga Lowland and occupies the area of 7,7 thousand km. Based on the analysis of family spectra, originality of the flora of the region we show the comparison of Soksky and Irgiz physiographic regions of the Samara Trans Volga. At the first stage of the research we consider the internal heterogeneity of the region, changes in the species composition of the flora along a two-sided latitudinal gradient. For this, the course of the curve, reflecting the accumulation of the number of species with an increase in area, has been studied. The accumulation curves of the number of species aligned in both directions showed three stages of an increase in the number of species, indicating the species heterogeneity of the area. The study of the position of the leading families, depending on the size and geographical position of the floristic sample, shows the heterogeneity of the studied Melekess-Stavropol region by the flora type, which is determined by the third term of the first triple of the family spectrum. At the second stage, four floral groups (floristic samples) are analyzed, which are geographically isolated at the first step. A comparison is made of the isolated groupings at the head of the family spectra using the fraction of the family in the flora and the number of species in the family. The third stage includes a comparison of the selected floral groups of the Melekess-Stavropol physio-geographical region according to the Preston index. Taking into account the existing numerical threshold of 0,27, above which the samples should be considered as different floras, it is possible to speak of the presence of four different floras on the territory of the studied area.

scholarly journals Bioecological features of pathogenic mycobiota formation in flower and decorative plants (on the example of Callistephus chinensis (L.) Nees) urban ecosystems greenization

2020 ◽  
pp. 98-106
Author(s):  
A. Marchenko ◽  
N. Krupa ◽  
V. Masalskiy ◽  
O. Oleshko ◽  
S. Rohovskiy ◽  
...  
Keyword(s):  
Species Composition ◽  
Fusarium Oxysporum ◽  
Urban Ecosystems ◽  
Steppe Zone ◽  
Gibberella Zeae ◽  
Transmission Factor ◽  
Ecological Niches ◽  
Forest Steppe ◽  
Ecological Groups ◽  
Annual Prevalence

The phytopathological condition of Chinese calisthephus groups in urbanized ecosystems of the forest-steppe zone was assessed and the species composition of pathogenic mycobiota was established as the main natural causes of violations of the complex green zone and compositional integrity of flower crops phyto-cenoses. The species composition was specified and a taxonomic assessment of the pathocomplex was carried out, where the kingdom of Fungi occupies a dominant place and is represented by 20 (84 %) species of pathogens from 11 (85 %) genera, 9 (82 %) families, 7 (78 %) orders, 2 (67 %) divisions, where Ascomycota has an advantage, which is represented by 18 (90 %) species, and the number of species is dominated by the orders Dothideales (6 species, 26 %) and Hypocreales (5 species, 21.7 %). Ecological niches of the main pathogens of Chinese calisthephus were established: micromycetes Botryotinia fuckeliana (de Bary) Whetzel., Fusarium oxysporum Schltdl. (1824), Verticillium albo-atrum Reinke & Berthold. V.dahliae Kleb. detected on all vegetative and reproductive organs; Phytophthora cactorum J. Schröt. (1886) – underground and aboveground; Rhizoctonia solani J.G. Kühn (1858) – underground parts and seeds, Alternaria zinniae M.B. Ellis (1972) – aboveground parts and seeds. In the phytopathogenic complex of underground organs the dominant place is fusarium root rot caused by Fusarium oxysporum, F.culmorum (Wm.G. Sm.) Sacc. (1895), Gibberella zeae (Schwein.) Petch, G. avenacea R.J. Cooke, Haematonectria haematococca (Berk. & Broome) Samuels & Rossman with average annual prevalence ranging from 5 to 89 %. The average annual prevalence of fusarium wilt of Chinese calistefus caused by Fusarium oxysporum, F. oxysporum f. callistephi W.C. Snyder & H.N. Hansen was 40.9 %. Pathogenic mycobiota according to the indicators of infection transmission factor belongs to the following ecological groups: airborne infection (54.2 %), soil infection (45.8 %); according to ecological and trophic properties they can be classified as biotrophs (70.8 %) and saprotrophs (29.2 %). Key words: urban ecosystem, flower-ornamental plants, mycobiota, phytopathogenic complex, Callistephus chinensis (L.) Nees, Fusarium oxysporum Schlecht., Ecological groups.

scholarly journals Taxonomic Composition and Life Forms of the Family Asteraceae Spreading in Daridagh Massif Area

2020 ◽  
Vol 6 (6) ◽  
pp. 68-72
Author(s):  
A. Heydarova
Keyword(s):  
Comparative Analysis ◽  
Life Forms ◽  
Taxonomic Composition ◽  
Predominant Species ◽  
Number Of Species ◽  
The Family

The article provides information on the taxonomic composition and life forms of the Family Asteraceae Dumort, which is widespread in the Daridagh Massif area. During our research, 43 species belonging to 23 Genera of the Family Asteraceae Dumort spreaded in the Daridagh Massif area. Also, a comparative analysis of the number of species belonging to the Family and their life forms were studied. According to the analysis of the number of species of the Genera Helichrysum Mill. — 2 (4.65%), Taraxacum Wigg. — 2 (4.65℅), Centaurea L. — 3 (6.97%), Carduus L. — 3 (6.97%), Achillea L. — 3 (6.97%), Scorzonera L. — 6 (13.95%) and Tragopogon L. — 8 (18.6%) species are the main predominant species in the Daridagh Massif area and are represented by 27 (62.79%) species. The remaining Genera are monotype and consist of 16 (37.20%) species.

scholarly journals Optimization of algoflora of sod-podzolic sand soil in the conditions of its cultivation

2019 ◽  
pp. 79-91
Author(s):  
Eugene E. Gaevskii ◽  
Yaroslav K. Kulikov
Keyword(s):  
Species Composition ◽  
Sandy Soil ◽  
Life Forms ◽  
Taxonomic Composition ◽  
Soil Algae ◽  
Nitrogen Fixing ◽  
Sand Soil ◽  
Number Of Species ◽  
Quantitative Development ◽  
Control Variant

As a result of studies of the taxonomic composition and quantitative development of soil algae on sod-podzolic sandy soil of varying degrees of optimization 45 species of soil algae were identified that belong mainly to four divisions: Chlorophyta, Cyanophyta, Bacillariophyta, Xanthophyta. Also in the soil were found not numerous representatives of divisions Euglenophyta and Rhodophyta. Different departments are represented unequally. Most of the found representatives we edaphophilic algae, the participation of hydrophilic algae in the formation of algogroups at the studied sites was insignificant (represented by one species of Cosmarium undulatum var. minutum Wittr.). No amphibial algae were found. The species composition and the spectrum of life forms in different versions of the experiment varied. The control variant of the experiment was represented by the smallest number of species; there are also no nitrogen-fixing cyanobacteria in the soil.

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