FOREST FUND IN THE RECREATIONAL POTENTIAL STRUCTURE OF KAMA REGION

10.12737/3817 ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. 98-102
Author(s):  
Гибадуллин ◽  
Nursil Gibadullin
Keyword(s):  
Strong Influence ◽  
Soil Cover ◽  
Anthropogenic Activities ◽  
General System ◽  
Oak Forests ◽  
High Productivity ◽  
Age Related ◽  
Potential Structure ◽  
Artificial Ecosystems ◽  
Young Growth

In this article shows the results of the research of forest fund of Bugulma-Belebey hill. It was established that modern character of forest vegetation is defined by elevation of territory, complexity of soil cover and strong influence of anthropogenic activities. Forest fund is characterized by excess of broadleaved woodland with good silvicultural-survey indexes, but with affected age-related structure. Squares of greenbelt forests is within range of 9.8 to 26.9% of whole square of forests. The mature and maturing pine and oak forests are characterized by low prosperity of young growth of mother species. Artificial ecosystems (up to 24% of forest square) are mainly presented by stands of high-productivity pine and birch. Involving the recreational potential of Bugulma-Belebey hill forests into the general system of touristic and recreational complex, we can highly increase its investive attraction.

scholarly journals Transformation and Reconstitution of Vegetation in the Pre-Baikal

2021 ◽  
Vol 37 ◽  
pp. 86-102
Author(s):  
A. P. Sizykh ◽  
Keyword(s):  
Species Composition ◽  
Anthropogenic Impact ◽  
Climate Changes ◽  
Soil Cover ◽  
Coniferous Forests ◽  
Forest Species ◽  
Structural Dynamic ◽  
Long Period ◽  
Steppe Plants ◽  
Young Growth

The work represents the results of perennial studies of the structural-dynamic organization of the phytocoenoses, which are subjected during a long period to anthropogenic impact in different, for geographical conditions, areas of western and south-eastern Pre-Baikal. The composition of phytocoenoses, which form at cuttings of forests of different composition and typology is found out. The following parameters are determined: species composition, synfolial differentiation and dominant species of the soil cover reflecting the dynamics of reconstitutional stages of polydominant light-coniferous forests of Pre-Baikalian type. We noticed the peculiarities of transformation and reconstitution of the coenoses, which during a long period are used for haying and pasturage formed on the site of earlier cut timber stands at the boundary with the extrazonal steppe. During last decades, a gradual forestation of these territories is observed, the steppe plants species in the soil cover are replaced by forest species characteristic for the light-coniferous taiga. On the site of cuttings of dark-coniferous taiga in the first half of the last century in the southern part of Pre-Baikal, forests form with dominance of more hydrophilic trees species in undergrowth and young growth – fir and spruce replace cedar everywhere. This is probably due to secular forests dynamics with replacement of forest forming trees species on the background of climate changes during last decades. There are as well changes in the species composition of plants on the soil cover of forming dark-coniferous taiga.

scholarly journals Biostratigraphy and assemblage composition of benthic foraminifera from the Manihiki Plateau, southwestern tropical Pacific

1995 ◽  
Vol 14 (2) ◽  
pp. 165-175 ◽  
Author(s):  
Joachim Schönfeld
Keyword(s):  
Benthic Foraminifera ◽  
Strong Influence ◽  
Tropical Pacific ◽  
Sensitive Species ◽  
Piston Core ◽  
Sea Floor ◽  
High Productivity ◽  
Lateral Advection ◽  
Core Base ◽  
Manihiki Plateau

Abstract. Pleistocene and late Pliocene benthic foraminifera from the Manihiki Plateau (southwestern tropical Pacific) were studied at piston-core 34KL. A new benthic foraminiferal biozonation is proposed. It comprises the Nodogenerina sagriensis Partial Range Zone from core base to 566.5 cm and the Fissurina seminiformis Partial Range Zone from this level to core top. The boundary is defined by the last occurence of Nodogenerina sagriensis which is time equivalent to the ‘Stilostomella extinction’ in the Eastern Atlantic. High abundances of Cibicidoides wuellerstorfi indicate a strong influence of near-bottom currents. The absence of high-productivity sensitive species reveals a low flux of organic matter to the sea floor from which a considerable amount is adduced by lateral advection.

scholarly journals Soil structure of sand quarries territory

2020 ◽  
Vol 157 ◽  
pp. 02017
Author(s):  
Yulia Timofeeva ◽  
Elena Sukhacheva ◽  
Boris Aparin ◽  
Vitaly Terleev ◽  
Aleksandr Nikonorov ◽  
...  
Keyword(s):  
Soil Structure ◽  
Soil Cover ◽  
Anthropogenic Activities ◽  
Mining Industry ◽  
Component Composition ◽  
Natural Soil ◽  
Leningrad Region ◽  
North West ◽  
Russian North ◽  
Diagnostic Signs

Anthropogenic activities are one of the leading factors of soil differentiation. Significant changes in the soil cover occur as a result of the construction of quarries. The mining industry causes the complete degradation of soils in large areas, the change of the natural soil cover and elevation around the quarries, the destruction of vegetation, disturbs biodiversity of the territory and the death of ecosystems. Soil cover structures of mining quarries have been considered on the example of the Leningrad region such as a natural conditions and environmental peculiarities typical for the whole Russian North-West area. Decoding and diagnostic signs of anthropogenic transformed soils were determined. The type and degree of transformation of the component composition, the contrast and heterogeneity of the soil cover, intercomponent connections, the shape and figure of the internal organization of the of soil cover structures have been identified. The complexity of the anthropogenic transformed soils cover is illustrated by “key site”.

scholarly journals STUDY OF OAK FORESTS AND SCRUBS OF HORNBEAM VEGETATION, METALS CONTENT OF TEUCRIUM CHAMEDRYS AND SOILS THE FIRST YEAR AFTER WILDFIRE ON VIDLIC MOUNTAIN

2015 ◽  
Vol 5 (2) ◽  
Author(s):  
MARKOVIĆ MARIJA ◽  
STANKOV JOVANOVIĆ VESNA ◽  
MITIĆ VIOLETA ◽  
STAMENKOVIĆ SLAVIŠA ◽  
ILIĆ MARIJA ◽  
...  
Keyword(s):  
Plant Species ◽  
Soil Cover ◽  
Burned Area ◽  
Ground Vegetation ◽  
Oak Forests ◽  
First Year ◽  
Burned Areas ◽  
Total Destruction ◽  
Teucrium Chamaedrys ◽  
Southeastern Serbia

On the Vidlič Mountain in southeastern Serbia in the summer of 2007. the wildfire occurred, in which burned beech and oak forests, scrubs of hornbeam, dry pastures and rocky ground vegetation. The influence of wildfire on oak forests and hornbeam the first year after fire was followed. Depending of the speed with which the fire crossed the soil cover, there was a partial or total destruction of vegetation, plant species and their habitats. In the burned areas, soil was more alcaline in comparison to the non burned areas. Heavy metal content (Pb, Cd, Cu, Zn and Fe) was generally increased both in the soil and plant species of Teucrium chamaedrys from the burned area, thought bellow the permitted limits for each metal. Key words: fire, Vidlič, oak forests, scrubs of hornbeam, diversity, soil, heavy metals.

Comparative analysis of introduced apricot forms in the conditions of the Orenburg Pre-Urals

2020 ◽  
Vol 62 ◽  
pp. 115-121
Author(s):  
V. V. Beskopilnaya ◽  
E. V. Aminova
Keyword(s):  
Comparative Analysis ◽  
High Temperature ◽  
Soil Cover ◽  
Laboratory Studies ◽  
Water Deficiency ◽  
Experimental Site ◽  
Local Climate ◽  
High Productivity ◽  
Experimental Station ◽  
Southern Chernozem

The article the contribution the study of tolerance of apricot forms to water deficiency and high temperature. The research was carried out in 2018-2019 on the basis of the Orenburg Experimental Station of Horticulture and Viticulture of All-Russian Horticultural Institute for Breeding, Agrotechnology and Nursery. During the research, 6 forms of apricot were studied (OR-1-1, OR-1-2, OR-4-3, OR-4-39, OR10-5, OR-10-6), the planting scheme was 5×4 m. The soil cover of the experimental site is southern Chernozem, low-humus, low-power, washed away. According to the results of laboratory studies, apricot forms with a low water loss limit of OR-1-2 (41.6 %) and OR-4-3 (45.2 %) were identified. The maximum parameter for relative turgor was observed in the Chelyabinskii rannii (St) variety (97.4 %) and the OR form-4-3 (98.9 %). Analysis of heat resistance revealed that all the studied forms and varieties of apricot (Chelyabinskii rannii) at a temperature of +50 °C had leaf browning of more than 80 %. According to the results of a two-year field experiment, it was found that the forms of apricot OR-4-3 and OR-4-39 had a high productivity of 34.0-36.0 and 33.7-38.9 kg per tree, respectively. The forms OR-1-2, OR-4-3 and OR-4-39 are most adapted to the local climate and are of interest for cultivation and further breeding work in the conditions of the Orenburg Pre-Urals.

Effect of strain on ADF-STEM high-resolution images

1991 ◽  
Vol 49 ◽  
pp. 666-667
Author(s):  
M. Kelly ◽  
D.M. Bird
Keyword(s):  
High Resolution ◽  
Strong Influence ◽  
Intensity Variation ◽  
Dark Field ◽  
Atomic Resolution ◽  
Strain Fields ◽  
High Resolution Image ◽  
Annular Dark Field ◽  
High Resolution Images ◽  
Interesting Alternative

It is well known that strain fields can have a strong influence on the details of HREM images. This, for example, can cause problems in the analysis of edge-on interfaces between lattice mismatched materials. An interesting alternative to conventional HREM imaging has recently been advanced by Pennycook and co-workers where the intensity variation in the annular dark field (ADF) detector is monitored as a STEM probe is scanned across the specimen. It is believed that the observed atomic-resolution contrast is correlated with the intensity of the STEM probe at the atomic sites and the way in which this varies as the probe moves from cell to cell. As well as providing a directly interpretable high-resolution image, there are reasons for believing that ADF-STEM images may be less suseptible to strain than conventional HREM. This is because HREM images arise from the interference of several diffracted beams, each of which is governed by all the excited Bloch waves in the crystal.

Spindle shaped bodies in foveolar cones of the baboon retina

1989 ◽  
Vol 47 ◽  
pp. 960-961
Author(s):  
W. Krebs ◽  
I. Krebs
Keyword(s):  
Cross Sections ◽  
Inclusion Bodies ◽  
Photoreceptor Cells ◽  
Papio Anubis ◽  
Retinal Photoreceptor ◽  
Age Related ◽  
Cone Cells ◽  
Membrane Bound ◽  
Oriented Parallel ◽  
Shaped Inclusion

Various inclusion bodies occur in vertebrate retinal photoreceptor cells. Most of them are membrane bound and associated with phagocytosis or they are age related residual bodies. We found an additional inclusion body in foveal cone cells of the baboon (Papio anubis) retina.The eyes of a 15 year old baboon were fixed by immersion in cacodylate buffered glutaraldehyde (2%)/formaldehyde (2%) as described in detail elsewhere . Pieces of retina from various locations, including the fovea, were embedded in epoxy resin such that radial or tangential sections could be cut.Spindle shaped inclusion bodies were found in the cytoplasm of only foveal cones. They were abundant in the inner segments, close to the external limiting membrane (Fig. 1). But they also occurred in the outer fibers, the perikarya, and the inner fibers (Henle’s fibers) of the cone cells. The bodies were between 0.5 and 2 μm long. Their central diameter was 0.2 to 0. 3 μm. They always were oriented parallel to the long axis of the cone cells. In longitudinal sections (Figs. 2,3) they seemed to have a fibrous skeleton that, in cross sections, turned out to consist of plate-like (Fig.4) and tubular profiles (Fig. 5).

Grain separation enhanced magnetic coercivity in Pt/Co multilayers.

1993 ◽  
Vol 51 ◽  
pp. 1038-1039 ◽  
Author(s):  
G.A. Bertero ◽  
R. Sinclair
Keyword(s):  
Remanent Magnetization ◽  
Strong Influence ◽  
Uniaxial Anisotropy ◽  
Magnetic Coupling ◽  
Recording Media ◽  
Magnetic Media ◽  
Signal To Noise ◽  
Out Of Plane ◽  
Longitudinal Recording ◽  
The Relationship

Pt/Co multilayers displaying perpendicular (out-of-plane) magnetic anisotropy and 100% perpendicular remanent magnetization are strong candidates as magnetic media for the next generation of magneto-optic recording devices. The magnetic coercivity, Hc, and uniaxial anisotropy energy, Ku, are two important materials parameters, among others, in the quest to achieving higher recording densities with acceptable signal to noise ratios (SNR). The relationship between Ku and Hc in these films is not a simple one since features such as grain boundaries, for example, can have a strong influence on Hc but affect Ku only in a secondary manner. In this regard grain boundary separation provides a way to minimize the grain-to-grain magnetic coupling which is known to result in larger coercivities and improved SNR as has been discussed extensively in the literature for conventional longitudinal recording media.We present here results from the deposition of two Pt/Co/Tb multilayers (A and B) which show significant differences in their coercive fields.

Autophagy and ageing: implications for age-related neurodegenerative diseases

2013 ◽  
Vol 55 ◽  
pp. 119-131 ◽  
Author(s):  
Bernadette Carroll ◽  
Graeme Hewitt ◽  
Viktor I. Korolchuk
Keyword(s):  
Neurodegenerative Diseases ◽  
Energy Availability ◽  
Future Studies ◽  
Intracellular Degradation ◽  
Age Related ◽  
Autophagy Induction ◽  
Social Importance ◽  
Cellular Dysfunction ◽  
Autophagy Activity ◽  
Intense Research

Autophagy is a process of lysosome-dependent intracellular degradation that participates in the liberation of resources including amino acids and energy to maintain homoeostasis. Autophagy is particularly important in stress conditions such as nutrient starvation and any perturbation in the ability of the cell to activate or regulate autophagy can lead to cellular dysfunction and disease. An area of intense research interest is the role and indeed the fate of autophagy during cellular and organismal ageing. Age-related disorders are associated with increased cellular stress and assault including DNA damage, reduced energy availability, protein aggregation and accumulation of damaged organelles. A reduction in autophagy activity has been observed in a number of ageing models and its up-regulation via pharmacological and genetic methods can alleviate age-related pathologies. In particular, autophagy induction can enhance clearance of toxic intracellular waste associated with neurodegenerative diseases and has been comprehensively demonstrated to improve lifespan in yeast, worms, flies, rodents and primates. The situation, however, has been complicated by the identification that autophagy up-regulation can also occur during ageing. Indeed, in certain situations, reduced autophagosome induction may actually provide benefits to ageing cells. Future studies will undoubtedly improve our understanding of exactly how the multiple signals that are integrated to control appropriate autophagy activity change during ageing, what affect this has on autophagy and to what extent autophagy contributes to age-associated pathologies. Identification of mechanisms that influence a healthy lifespan is of economic, medical and social importance in our ‘ageing’ world.

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