scholarly journals Biomorphological structure of restored vegetation cover of abandoned lands of the Forest-Steppe of Ukraine

2019 ◽  
Vol 10 (3) ◽  
pp. 79-85
Author(s):  
B. Ye. Yakubenko ◽  
◽  
A. M. Churilov ◽  
Keyword(s):  
Vegetation Cover ◽  
Forest Steppe ◽  
Abandoned Lands

scholarly journals Vegetation cover and small mammals as the components of biocoenosis in the conditions of the Volga Upland

2017 ◽  
Vol 6 (2) ◽  
pp. 18-23
Author(s):  
Elena Evgenievna Boryakova
Keyword(s):  
Small Mammals ◽  
Vegetation Cover ◽  
Nature Reserve ◽  
Complex Structure ◽  
Distinct Group ◽  
Steppe Zone ◽  
Point Of View ◽  
Forest Steppe ◽  
Oak Forest ◽  
The Village

The study of the nature reserve oak forest near the village of Pelya-Khovanskaya ecosystem was done in the region of Nizhny Novgorod. The investigated wood is unique for its complex structure. It is situated in the forest-steppe zone, characterized by a high species diversity of small mammals and vegetation, which indicates the complexity of trophic and spatial connections. Several series of sample plots were described: 41 of 2020 m and a number of 11 m sites, totaling 300. Abundance of species by Brown-Blanke scale and the number of specimens of adolescence were specified for each 1 sq. m. plot. Mammals were trapped with the help of trapping grooves and transects method. Vegetation cover is characterized by the presence of a clear intra-differentiation as well as the existence of two basic ecologo-coenotic groups/cores - the nemoral (with Pulmonaria obscura Dum. as the center species of the core) and the meadow-fringe. The most distinct group is formed by forest-shoot species. It can be explained by more forest-steppe rather than nemoral nature of vegetation. Small mammals are represented by the following species: common and small shrews, small forest mouse, yellow-throated and field mice and harvest mouse, vole-housekeeper, common, plowed and red voles, European mole. Two species among them - vole-housekeeper and mouse-baby - are listed in the Red Book of the Nizhny Novgorod Region. Matching burrows of mouse-like rodents with soil richness with nitrogen and humidity, two well-defined peaks are observed. The greatest number of burrows is found in places where the soil is high in nitrogen. Moles were found in areas with a large projective coating of Primula veris: coefficient Spearman rank 0,50. There was a negative correlation of the number of moles and vegetation covering of Pyrethrum corymbosum (-0,46), which is the marker of the driest parts in the forest. In general, the nature reserve oak forest near the village of Pelya-Khovanskaya is of considerable interest, both from botanical and from zoological point of view. Long-term studies of biocoenosis will allow to monitor the facility and to correct the proposed protective measures.

scholarly journals Geobotanical characteristics of psammophytic steppes of the Penza region in the Ardym river basin

2021 ◽  
pp. 35-47
Author(s):  
L. A. Novikova ◽  
◽  
S. N. Artemova ◽  
V. K. Makuev ◽  
E. Y. Yakovlev ◽  
...  
Keyword(s):  
River Basin ◽  
Vegetation Cover ◽  
Steppe Zone ◽  
Anthropogenic Effects ◽  
Forest Steppe ◽  
Anthropogenic Influence ◽  
Erosion Process ◽  
Middle Volga Region ◽  
Erosion Processes ◽  
Middle Volga

The research is devoted to the study of poorly preserved psammophytic variants of meadow steppes in the forest-steppe zone of the Middle Volga Region. It has allowed to define the main stages of re-establishment of vegetational cover and estimate the conservation prospects on the river Ardym in different ecological conditions (geomorphological and edaphyc). It has been established that the re-establishment of psammophytic steppes vegetation occurs in a similar way both on the slopes of the predominantly southern exposition and on watershed surfaces. However, in the absence of anthropogenic effects on watershed surfaces, there is a sylvatization of the vegetation cover resulting in displacement of psammophytic steppes. Only the constantly occurring weak natural erosion processes on the slopes of the predominantly southern exposition contribute to the preservation of these rare communities here. Under intense anthropogenic influence, as well as in the conditions of a significant erosion process, the psammophytic steppes fail to be preserved or replaced by steppe meadows.

scholarly journals The latitudinal distribution of vegetation cover in Siberia

2019 ◽  
Vol 16 ◽  
pp. 00047
Author(s):  
Irina Safronova ◽  
Tatiana Yurkovsksya
Keyword(s):  
Vegetation Cover ◽  
Western Siberia ◽  
Steppe Zone ◽  
Coniferous Forests ◽  
Forest Steppe ◽  
Taiga Zone ◽  
Eastern Siberia ◽  
Central Siberia ◽  
Zonal Vegetation ◽  
North Eastern

The latitudinal changes of vegetation cover on the plains of Siberia are observed. In Western Siberia there are 4 zones (tundra and taiga, and forest-steppe and steppe only here), in Central and North-Eastern Siberia − only 2 zones (tundra and taiga).Tundra zone is represented by 4 subzones in Central Siberia; in Western and North-Eastern Siberia − by 3 subzones (there are no polar subzone). All 5 subzones of the taiga zone are distinguished both in Western Siberia and in the Central Siberia, but in the Central Siberia, forests are found in very high latitudes. The feature of the taiga zone of Western Siberia is high paludification. As a result, the vegetation of mires dominates over the zonal vegetation. Zonal West Siberian types are dark coniferous forests. Light coniferous forests predominate in the taiga zone of Central and North-Eastern Siberia. In the forest-steppe zone in Western Siberia forests are small-leaved − birch, aspen-birch (Betula pendula, Populus tremula). The abundance of mires is the feature of this zone, as well as in the taiga.

The mapping of vegetation cover dynamics in the Sayan-Shushensky Reserve

2000 ◽  
pp. 32-49 ◽  
Author(s):  
V. I. Vlasenko
Keyword(s):  
Vegetation Cover ◽  
Biosphere Reserve ◽  
High Elevation ◽  
Forest Steppe ◽  
Pinus Sibirica ◽  
Central Asian ◽  
Taiga Forest ◽  
South Siberia ◽  
Larch Forests ◽  
Mountain Taiga

The character of forest dynamics in the last century may be traced on the key area of the Altai-Sayan mountain country — the Sayan-Shushensky Biosphere Reserve of total area 389 000 ha. It is situated at the border of humid mountain region of South Siberia and the arid areas of Tuva. The basement for creation of prognosis map of potential state of the Reserve vegetation cover for 2050 year includes: 1) the data on inventory, ages structure, and conditions of forests; 2) the results of the earlier studies of dynamics of mountain open woodlands; 3) materials of dendroclimatic investigations at the upper and lower forest boundaries in the Sayan Mts.; 4) prognosis of climatologists. While classifying the Reserve vegetation, 1500 biogeocoenoses have been united into 362 types of biogeocoenoses which have been included into 112 groups of associations identified in altitudinal vegetation belts: goltsy, meadows and shrub thickets; high elevation open woodlands; mountain taiga; subtaiga—forest- steppe complexes. Local expansion of forest boundaries, at the expense of forming the 40— 80 years old forest stands in goltsy and open woodlands, testifies to climate warming, and a rise of the subtaiga—forest-steppe pine and larch forests of the 40—80 years old is the evidence of climate humification in this region during the last century. According to the prognoses of climatologists this tendency will continue in the future 50 years. On the territory of the Sayan-Shushensky Reserve, within the strip of 200 m width at the age of steppefied forests as well as within the steppes with shrubs, mesophilous species will be developed in the shrub, herb-dwarf shrub and moss cover. Under protection of shrubs, young open stands of larch and pine will spring up (on the area of 200 ha) and in subtaiga forests Abies sibirica and Pinus sibirica will appear among the regrowth. Under canopy of the mountain taiga and the subtaiga larch forests, the second layer of dark needle-leaved species will be formed. In the places of present pyrogenic derivatives — birch and aspen forests — the fir forest with admixture of Pinus sibirica and Picea obovata will be restored. On the area of 49 322 ha, occupied by mountain woodlands (87% of the total area), the closed mountain taiga forest of Pinus sibirica will spread. The area of goltsy and shrub thickets will decrease by 44.4% (19 214 ha), being replaced by the high elevation open woodlands of Pinus sibirica and Larix sibirica. In accordance with changes in vegetation cover the boundary between the Altai-Sayan and the Central-Asian forest areas within the Reserve's territory will deviate from the modern one approximately by 25 km.

scholarly journals Vegetation cover of riparian and coastal zones of forest swamps in the Slobozhansky National Nature Park (structural features and direction of transformation)

2019 ◽  
Keyword(s):  
Plant Communities ◽  
Vegetation Cover ◽  
Large Scale ◽  
Calluna Vulgaris ◽  
Steppe Zone ◽  
Structural Features ◽  
Forest Steppe ◽  
Coastal Zones ◽  
Gis Applications ◽  
Nature Park

This article is devoted to study the characteristics of ecological-cenotic structure and directions of vegetation cover transformations in riparian and coastal zones of forest swamps within the forest-steppe zone (north-western part of Kharkiv Oblast, Ukraine). The survey has been conducted in 2013–2018 in the territory of the Slobozhansky National Natural Park. Plant communities were surveyed both in phanerophyte and grass biotopes types, having different genesis and degree of disturbance (from terrestrial to aquatic, from native to artificially created forest plantations). A number of regionally rare plant species were identified in their composition (Dryopteris carthusiana (Vill.) H.P.Fuchs, Majanthemum bifolium (L.) F.W.Schmidt, Calluna vulgaris (L.) Hull, Equisetum sylvaticum L., Potentilla erecta (L.) Raeusch., Rubus saxatilis L., Eriophorum angustifolium Honck., E. vaginatum L., Drosera rotundifolia L., Nymphaea candida C.Presl, Utricularia vulgaris L.) and U. minor L. – a species listed in the Red Book of Ukraine. Route and stationary techniques of field surveys were used for clarification the general features of horizontal vegetation structural organization, as well as for studying the effect of environmental factors on state and stability of plant communities. Usage of mobile GIS applications in geodata collection and their further processing in ArcMap project allowed us to develop a large-scale geobotanical map (1:1500) as an area of permanent botanical survey (1.9 ha). According to the results of phytoindication, indicators of 7 environmental edaphotop regimes in 25 plant communities studied (objects of mapping and further monitoring) have been identified. Based on the geobotanical map, integration of data on the intensity of vegetation transformation have been conducted. It was found that plant communities ІV (the highest) and III degrees of transformation cover an area more than 0.6 hectares (one third of the total plot area). These communities were occurred mainly in phanerophyte-type biotopes (aspen, willow, birch, and, partly, pine), which have been affected by pyrogenic and biogenic factors. The GIS-project created as a result of the study serves as a geo-information base that can be further improved and used to solve other applied problems.

scholarly journals Impact of natural fires on the vegetation cover of steppe and forest-steppe zones (European part of Russia, Middle Volga region)

2021 ◽  
Vol 265 ◽  
pp. 01019
Author(s):  
Valentina Ilyina ◽  
Anna Mitroshenkova ◽  
Stepan Senator ◽  
Vera Solovyeva ◽  
Stanislav Rogov
Keyword(s):  
Vegetation Cover ◽  
Volga Region ◽  
Forest Steppe ◽  
Volga River ◽  
Middle Volga Region ◽  
Plant Parts ◽  
Natural Fires ◽  
Zonal Vegetation ◽  
Middle Volga ◽  
The Impact

The effect of natural fires on the vegetation cover of steppe and forest-steppe zones in the south-east of European Russia (the middle course of the Volga River) has been evaluated. The research used methods of studying biosystems at organism, species, population and cenotic levels. The study revealed the possibility of regrowth of aboveground plant parts after fires, changes in the population structure of species, and resistance of populations and zonal plant communities to the effects of natural fires. The most vulnerable among zonal vegetation types are pine forests, feather-grass and petrophytic steppes. Frequency, intensity and area of natural fires in the Middle Volga region cause significant changes in the structure of vegetation cover and reduction of biodiversity. The results obtained in the study of the impact of fires on vegetation can be used in the planning and implementation of environmental and reforestation measures.

scholarly journals Ecological analysis of the flora of the Kremenets Mountains National Nature Park (on the example of the mountains Divochi Skeli, Strakhova, Masliatyn, Chercha, Zamkova, Bozha)

2021 ◽  
Vol 280 ◽  
pp. 11008
Author(s):  
Nataliia Lisova ◽  
Myroslav Syvyj ◽  
Olena Volik
Keyword(s):  
National Parks ◽  
Vegetation Cover ◽  
National Park ◽  
Abiotic Factors ◽  
Life Forms ◽  
Forest Steppe ◽  
Ecological Analysis ◽  
Important Impact ◽  
Nature Park

One of the elements that ensure the sustainability of the environment is the vegetation cover. The vegetation cover contributes to the balanced functioning of ecosystems. It is the national parks rich in phytodiversity that attract the attention of scientists. The article presents an ecological analysis of the flora of the Kremenets Mountains National Park. The research was carried out in the areas of the mountains Divochi Skeli, Strakhova, Masliatyn, Chercha, Zamkova, Bozha. 10 florocoenotypes were identified in the study areas. The most numerous is the nemoral forest coenotype. The flora was analyzed for abiotic factors such as light, temperature, humidity, soil. It is these indicators that have an important impact on the formation of vegetation cover and the life processes of plants. It was found that facultative heliophytes, mesothermal plants, mesophytes, and mesotrophs predominate in the study areas. The vegetation cover has clear forest-steppe features. The classification of life forms of plants is given. Relicts and endemics are confined to steppe and calcepetrophilic areas. Flora synanthropization is observed on the study areas.

scholarly journals Assessment of vegetation cover on abandoned agricultural forest-steppe lands using multivariate analysis of their spectral response

2021 ◽  
Vol 932 (1) ◽  
pp. 012008
Author(s):  
E A Terekhin
Keyword(s):  
Multivariate Analysis ◽  
Vegetation Cover ◽  
Spectral Response ◽  
Coniferous Forest ◽  
Mixed Forest ◽  
Automatic Identification ◽  
Forest Steppe ◽  
Agricultural Lands ◽  
Forest Stands ◽  
Infrared Band

Abstract It is crucial for all the regions including the forest-steppe zone that the vegetation cover on abandoned agricultural lands is thoroughly studied. This paper reviews some challenges of abandoned agricultural lands, which can be used as the basis for the real-time analysis of vegetation dynamics. The study aims to assess the capacity of automatic identification of forest stands established on abandoned agricultural lands through multivariate analysis of their spectral response. Based on the analysis of spectral reflective characteristics of abandoned agricultural lands from Landsat OLI data, it was found out that the reflective features of abandoned areas with deciduous, coniferous, and mixed forest stands differ significantly in the infrared band. It has been proposed to recognize abandoned agricultural lands with deciduous and coniferous forest stands through discriminant analysis of their reflective characteristics. It has been proved that reflectance in the red and infrared bands can be used to automatically detect abandoned agricultural lands with deciduous and coniferous stands. It is more challenging to identify abandoned areas with mixed forest stands.

scholarly journals The current state of abandoned lands in the northern forest-steppe zone at the Republic of Bashkortostan (Southern Ural, Russia)

2020 ◽  
Vol 10 ◽  
Author(s):  
R. Suleymanov ◽  
I. Yaparov ◽  
I. Saifullin ◽  
I. Vildanov ◽  
P. Shirokikh ◽  
...  
Keyword(s):  
Soil Properties ◽  
Crop Rotation ◽  
Vegetation Cover ◽  
Steppe Zone ◽  
Limiting Factor ◽  
Forest Steppe ◽  
Northern Forest ◽  
Republic Of Bashkortostan ◽  
Postagrogenic Soils ◽  
Agricultural Use

This paper presents the results of the state of postagrogenic ecosystems (18-20 years after the land was taken out of crop rotation) in the northern forest-steppe zone, Republic of Bashkortostan (South Ural) where soil cover is represented by postagrogenic gray-humus soils (Regosols). Probably, the unfavorable physical and agrochemical soil properties were a limiting factor in obtaining a profitable crop yield, and it was a reason for the withdrawal of land from agricultural use. Eighteen to twenty years since agricultural fields were taken out of crop rotation, a diverse vegetation cover has formed on postagrogenic soils. Analysis of the NDVI (Normalized Difference Vegetation Index) showed that more than 50% of the territory is covered by average and high vegetation development (low-grass meadows and forest communities). The active renewal of natural vegetation is conducted in the studied territory, which develops under the influence of zonal type vegetation and is in the transition stage from ruderal communities to low-grass meadows and different-aged secondary forests with domination of broad-leaved and light-coniferous tree species. The low content of organic carbon and basic nutrients in postagrogenic soils, at this stage of restoration, does not influence the formation and diversity of vegetation cover. However, vegetation continues to suffer the consequences of long-term agricultural use (mainly mechanical impact), resulting in a well-defined mosaic of vegetation communities, the poverty of the floristic composition and the presence of perennial weed species occurring in high abundance. It is better to maintain the land abandoned to further improve soil properties and reduce erosion.

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