Aphyllophoroid fungi (Basidiomycota) in forests of the middle part of Luga River valley, Leningrad Oblast, Russia

Karstenia ◽  
2017 ◽  
Vol 57 (1-2) ◽  
pp. 37-47
Author(s):  
Sergey Volobuev ◽  
Alexandra Arzhenenko
Keyword(s):  
Middle Part ◽  
River Valley ◽  
Leningrad Oblast ◽  
Aphyllophoroid Fungi

scholarly journals Changes and contemporary trends in the annual amounts of precipitation in Serbia

2021 ◽  
Vol 44 ◽  
pp. 73-79
Author(s):  
Hristo Popov ◽  
Jelena Svetozarevich
Keyword(s):  
Balkan Peninsula ◽  
Middle Part ◽  
River Valley ◽  
Annual Precipitation ◽  
Precipitation Data ◽  
Southeast Europe ◽  
The Republic ◽  
River Valleys ◽  
Annual Amount ◽  
The Sava River

The Republic of Serbia is а continental country located in the western part of the Balkan Peninsula, in Southeast Europe. In terms of physical characteristics, Serbia is divided into two parts: Pannonian part and mountainous part. The northern part of the country is located in the valley of the Middle Danube, the Sava River valley and the Tisza River valley. In the middle part of the country, the river valleys of the Drina, the Kolubara and the Morava are located. For the purposes of this research, the authors have used the annual precipitation data from 15 meteorological stations distributed throughout the Republic of Serbia. The data from these meteorological stations for the period between 1991 and 2019 has been provided by The Serbian Institute of Meteorology and Hydrology. This data has been used to calculate the annual amount of precipitation, and the trends in annual precipitation.

scholarly journals Relationship between Species Richness, Biomass and Structure of Vegetation and Mycobiota along an Altitudinal Transect in the Polar Urals

2020 ◽  
Vol 6 (4) ◽  
pp. 353
Author(s):  
Anton G. Shiryaev ◽  
Ursula Peintner ◽  
Vladimir V. Elsakov ◽  
Svetlana Yu. Sokovnina ◽  
Denis A. Kosolapov ◽  
...  
Keyword(s):  
Species Richness ◽  
Vascular Plants ◽  
Fungal Species ◽  
River Valley ◽  
Tree Age ◽  
Ecological Groups ◽  
Polar Urals ◽  
Crown Density ◽  
Aphyllophoroid Fungi ◽  
The Polar Urals

Aboveground species richness patterns of vascular plants, aphyllophoroid macrofungi, bryophytes and lichens were compared along an altitudinal gradient (80–310 m a.s.l.) on the Slantsevaya mountain at the eastern macroslope of the Polar Urals (Russia). Five altitudinal levels were included in the study: (1) Northern boreal forest with larch-spruce in the Sob’ river valley habitats; (2–3) two levels of closed, northern boreal, larch-dominated forests on the slopes; (4) crook-stemmed forest; (5) tundra habitats above the timberline. Vascular plant or bryophyte species richness was not affected by altitudinal levels, but lichen species richness significantly increased from the river valley to the tundra. For aphyllophoroid macrofungi, species richness was highest at intermediate and low altitudes, and poorest in the tundra. These results indicate a positive ecotone effect on aphyllophoroid fungal species richness. The species richness of aphyllophoroid fungi as a whole was neither correlated to mortmass stocks, nor to species richness of vascular plants, but individual ecological or morphological groups depended on these parameters. Poroid fungal species richness was positively correlated to tree age, wood biomass and crown density, and therefore peaked in the middle of the slope and at the foot of the mountain. In contrast, clavarioid fungal species richness was negatively related to woody bio- and mortmass, and therefore peaked in the tundra. This altitudinal level was characterized by high biomass proportions of lichens and mosses, and by high litter mortmass. The proportion of corticoid fungi increased with altitude, reaching its maximum at the timberline. Results from the different methods used in this work were concordant, and showed significant patterns. Tundra communities differ significantly from the forest communities, as is also confirmed by nonmetric multidimensional scaling (NMDS) analyses based on the spectrum of morphological and ecological groups of aphyllophoroid fungi.

scholarly journals Effect of slope position on soil particle-size distribution in young glacial landscape (Łyna River valley, NE Poland)

2016 ◽  
Vol 67 (3) ◽  
pp. 140-150
Author(s):  
Paweł Sowiński
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Principal Component ◽  
Middle Part ◽  
River Valley ◽  
Soil Particle ◽  
Slope Position ◽  
Soil Particle Size ◽  
Soil Particle Size Distribution

AbstractThe aim of this paper was to characterize soil particle-size distribution (PSD) of in the middle part of young glacial Łyna River valley in relation to parent materials, soil forming processes and slope position. The study comprised rusty soils, arenosols, clay-illuvial soils, colluvial and alluvial soils located in four slope position: summit / midslope, footslope / toeslope, upper and lower part of floodplain. In order to describe the sedimentological environment and possible heterogenity of the soil formations, sedimentological and granulometric indices were calculated. The relationships between soil fractions in A horizons and environmental variables (slope position and depth of A horizon) were determined using principal component analysis (PCA).The studied soils were poorly sorted with various values of skewness of granulometric distribution (symmetrical, fine and very fine skewed) and kurtosis (mainly very leptokurtic). The value of mean grain diameter was decreasing with slope position which may suggest high dynamics and energy of sedimentological environment in the middle part of Łyna River valley. The analysis of granulometric indices revealed that colluvial deposits were the most homogenous and alluvial formations were the most heterogenous. The results of the statistical analysis showed a positive correlation of the amounts of clay and silt fractions with depth of A horizons. The factor responsible for variability of these fractions was the position on the slope. The A horizons in soils located at the summit and footslope had the highest amounts of sand fractions. While significant increase in the share of finer fractions in soils located in the floodplain was noted.

scholarly journals Low terraces of the Styr River valley in the middle part of the Volhyn Upland

2016 ◽  
pp. 101-118
Author(s):  
Roman Hnatyuk ◽  
Taras Novak
Keyword(s):  
Geological Structure ◽  
Middle Part ◽  
River Valley ◽  
Average Height ◽  
Main Attention ◽  
River Level ◽  
The North ◽  
River Terraces ◽  
Loess Deposits ◽  
Constant Altitude

The paper focuses on the description of the low Pleistocene terraces (with the height of up to 20 m above the river level) of the Styr River valley that were identified in the middle part of the upland between Bilche–Krasne villages in the south and Boratyn–Pidhaitsi villages in the north. The main attention is concentrated on the mapping of the terraces and the overview of their outcrops as well as analysis of the boreholes data. The study of the geological structure of the terraces becomes the basis to determine their age. Mapping of river terraces was executed using topographic maps in scale 1:10 000. On the territory where previous researchers identified one or two terraces, we have identified five morphologically distinct cyclic (paired) terraces. The highest low terrace that is widespread territorially is named here the main terrace and the other four that are locally preserved are combined in a complex of minor low terraces. The level of the main Styr terrace has almost constant altitude of about 191–192 m. The average height of the terrace surface is gradually increasing downstream from 12–13 to 14–16 m above river level. Its surface is slightly undulating and complicated by relatively large isometric depressions with the diameter of up to 100 m and more. The slightly meandering forms similar to channels with the plan size comparable with the modern Styr channel occur on the terrace surface. The main terrace is relatively complicated and has mainly two-termed structure – the lower part of sedimentary sequence is composed of normal (perstrative) alluvium of large thickness; the upper part is composed of constrative alluvium accumulated when the river channel was laterally inactive. The terrace is overbuilt by a loess layer a few meters thick that covers floodplain alluvium without a distinct break in accumulation. Geological structure of the minor low terraces is relatively simple and recalls the floodplain structure. Absence of well-expressed paleosols in the alluvial and loess deposits of the low terraces suggests that they were formed during Late Pleniglacial (MIS 2). Key words: river terrace, alluvium, Late Pleistocene, Late Pleniglacial, Volhyn Upland, Styr River valley.

On mycobiota of the Khibiny Mountains (Murmansk Region)

2014 ◽  
Vol 48 ◽  
pp. 219-225
Author(s):  
Yu. R. Khimich ◽  
L. G. Isaeva
Keyword(s):  
River Valley ◽  
Murmansk Region ◽  
First Time ◽  
Aphyllophoroid Fungi

As a result of mycological studies of the Kuniyok River Valley (Khibiny Mts.) in 2006 and 2010 35 species of aphyllophoroid fungi were identified. Four species (Skeletocutis papyracea, Trechispora stellulata, Tubulicrinis borealis, T. effugiens) are recorded for the first time for the Murmansk Region.

scholarly journals Floristic diversity of selected plant communities on extensive and abandoned grasslands in the Nadwieprzański Landscape Park / Zróżnicowanie florystyczne wybranych zbiorowisk roślinnych ekstensywnych użytków zielonych w Nadwieprzańskim Parku Krajobrazowym

2013 ◽  
Vol 19 (1) ◽  
pp. 77-82
Author(s):  
Marianna Warda ◽  
Ewa Stamirowska-Krzaczek ◽  
Mariusz Kulik
Keyword(s):  
Plant Communities ◽  
Diversity Index ◽  
Floristic Composition ◽  
Middle Part ◽  
Lythrum Salicaria ◽  
River Valley ◽  
Organic Soils ◽  
Floristic Diversity ◽  
Wiener Diversity Index ◽  
Herbaceous Communities

Abstract The paper presents floristic diversity of some plant communities in the Nadwieprzański Landscape Park (middle part of the Wieprz River valley). Phytosociological relevés were made in the years 2005-2007 with Braun-Blanquet method. Species richness was a base to calculate the Shannon-Wiener diversity index. The Wieprz River valley has the character of a floodplain. In its middle reaches, communities of the Molinio- Arrhenatheretea class accounted for nearly 75% of all plant communities in grasslands. Herbaceous communities were represented by associations from the Filipendulion alliance. The greatest diversity (H’ = 3.4) was characteristic for vegetation of the Valeriano-Filipenduletum association. It formed small patches in abandoned meadows. Small patches of plants from the Lythro-Filipenduletum ulmariae association, having a slightly smaller floristic diversity (H’ = 3.0) were found on abandoned meadows located in highly silted and poor organic soils. Characteristic species of herbaceous communities (Filipendula ulmaria, Valeriana officinalis and Lythrum salicaria) occurred also in the sward of abandoned thistle meadows. Typical thistle meadows (Cirsietum rivularis), with the predominance of Cirsium rivulare developed in land depressions, not far from the Wieprz River, in the vicinity of abandoned drainage ditches and along the edges of the valley. However, the total abandonment of these meadows leads to changes in floristic composition of the sward and to succession towards herbaceous communities.

scholarly journals The diversity of chosen grass communities in the middle part of the Wieprz river valley in the sustainable development of rural areas

2016 ◽  
Vol 71 (2) ◽  
pp. 31-40
Author(s):  
EWA STAMIROWSKA-KRZACZEK ◽  
HALINA LIPIŃSKA ◽  
RAFAŁ KORNAS ◽  
MARIANNA WARDA ◽  
PAWEŁ KRZACZEK
Keyword(s):  
Sustainable Development ◽  
Rural Areas ◽  
Middle Part ◽  
River Valley ◽  
Floristic Diversity ◽  
Sustainable Rural Development ◽  
The Sustainable Development ◽  
Grass Communities ◽  
The Moment ◽  
River Valleys

Sustainable rural development is identified mainly by means of ecological solutions. At the moment, more and more attention is given to natural and sightseeing values of our environment, and hence, to biodiversity. The aim of the research conducted in the years 2005-2008 was to assess the floristic diversity of grass communities in the middle part of the Wieprz river valley (Lublin region) depending on the habitat and ways of use. The moisture of habitat and the use of sward influence the formation of grass communities Molinio-Arrhenatheretea and Phragmitetea classes, which were characterized by average floristic diversity and the presence of endangered and protected species. Grass communities in river valleys require preservation and protection not only for economic reasons but also because of the floristic diversity and ecological environmental functions, and thus for the sustainable development of rural areas.

Status of nondestructive control of transport function metal products at JSC EVRAZ NTMK

2020 ◽  
Vol 76 (6) ◽  
pp. 586-590
Author(s):  
S. P. Bersenev ◽  
E. M. Slobtsova
Keyword(s):  
Crack Detection ◽  
Middle Part ◽  
Control Line ◽  
Magnetic Powder ◽  
Nondestructive Control ◽  
Automated Control ◽  
Ultrasonic Control ◽  
Acoustic Contact ◽  
In Series

Achievements in the area of automated ultrasonic control of quality of rails, solid-rolled wheels and tyres, wheels magnetic powder crack detection, carried out at JSC EVRAZ NTMK. The 100% nondestructive control is accomplished by automated control in series at two ultrasonic facilities RWI-01 and four facilities УМКК-1 of magnetic powder control, installed into the exit control line in the wheel-tyre shop. Diagram of location, converters displacement and control operations in the process of control at the facility RWI-01 presented, as well as the structural diagram of the facility УМКК-1. The automated ultrasonic control of rough tyres is made in the tyres control line of the wheel-tyre shop at the facility УКБ-1Д. The facility enables to control internal defects of tyres in radial, axis and circular directions of radiation. Possibilities of the facility УКБ-1Д software were shown. Nondestructive control of railway rails is made at two facilities, comprising the automated control line of the rail and structural shop. The УКР-64Э facility of automated ultrasonic rails control is intended to reveal defects in the area of head, web and middle part of rail foot by pulse echo-method with a immersion acoustic contact. The diagram of rail P65 at the facility УКР-64Э control presented. To reveal defects of the macrostructure in the area of rail head and web by mirror-shadow method, an ultrasonic noncontact electromagnetic-acoustic facility is used. It was noted, that implementation of the 100% nondestructive control into the technology of rolled stuff production enabled to increase the quality of products supplied to customers and to increase their competiveness.

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