scholarly journals Species composition and morpho-ecological groups of aquatic macrophytes in foothill lakes on the eastern slope of the Southern Urals (Chelyabinsk region, Russia)

Check List ◽  
2015 ◽  
Vol 11 (2) ◽  
pp. 1617 ◽  
Author(s):  
Elena I. Veisberg

The aquatic macrophyte richness in nine lakes situated in the Chelyabinsk region (Russia) was analyzed. These lakes represent the foothill group, located on the eastern slope of the Southern Urals range. A total of 89 species belonging to 49 genera and 35 families were recorded. The species list includes 40 submerged rooted hydrophytes, 23 hygro-helophytes, 13 helophytes, 6 rooted hydrophytes with floating leaves, 4 free submerged hydrophytes and 3 free floating hydrophytes.

2020 ◽  
Vol 67 (1) ◽  
pp. 78-86
Author(s):  
Nikolay S. Sergeev ◽  
Mikhail V. Zapevalov ◽  
Alexander V. Gritsenko

In the continental climate of the southern Urals, rapeseed compares favorably with many forage and traditional silage crops with a high protein content and adaptive properties. The cultivation of rapeseed guarantees the production of its own seeds, up to 40 percent of oil, 60 percent of cake and 98 percent of rapeseed flour. (The research purpose) The research purpose is in improving the efficiency of rapeseed cultivation and rational use of rapeseed seeds, rapeseed flour and oil in the agricultural production in the Chelyabinsk region. (Materials and methods) The influence of various forecrops on the productivity and quality of spring rape seeds in the links of grain-pair crop rotations in the Northern forest-steppe of the Chelyabinsk region were studied. Authors have analyzed the chemical composition of the soil and seeds of spring rape after various forecrops. (Results and discussion) The article proposes to reduce energy costs during pressing and reduce residual oil in the cake after pre-grinding of rapeseed by cutting method using a centrifugal-rotary shredder. The article shows that rapeseed flour has a good flowability and is easily mixed with other feeds. It was found that partial replacement of concentrates with rapeseed flour in the amount of 8-12 percent of the total weight in the diet of lactating cows contributes to an increase in milk productivity by 1.1-1.8 kilograms in terms of milk of 4 percent fat content. (Conclusions) It has been revealed that in order to increase the yield and quality of spring rape seeds, it is necessary to place them on the best forecrops. It was found that when 75 percent of rapeseed oil is mixed with 25 percent of diesel fuel, the obtained biodiesel is not inferior to diesel in terms of energy indicators. The article proves that when cultivating rapeseed for seeds on an area of 100 hectares, it is possible to produce 94.5 tons of biodiesel fuel, 106.0 tons of cake with an oil content of 5 percent and 8.4 tons of oil sludge, the estimated economic effect after sale is of 3,813,325 rubles.


2021 ◽  
Author(s):  
Lyudmila Zubanova ◽  
Sergei Sinetskii ◽  
Maria Shub

The article analyzes the issues of interactive media culture development in modern society. The authors consider information and media strategies as tools for constructing the ecological identity of deprived territories residents (on the example of Chelyabinsk region). The article is based on research carried out between 2015 to 2019, monitoring the environmental situation in Chelyabinsk region. Mass representative surveys, held among the southern Urals citizens, expert interviews, content analysis of official information sources and informal channels of communication users (social networks), thematic debates with regional journalistic community served to ground the main ideas for this work. The resource mobilization idea of the ‘negative memory’ of the audience is the key conclusion, obtained during the analysis of sociological data. Negative memory is a stable negative perception of the territory ecological image under the influence of the broadcasted media content. The theoretical principles of memory studies are the base of this approach. The research has fixed the contradiction between the subjective readiness of the audience for constructive mobilization in the area of environmental initiatives and the ’negative ecological memory’ of the territory. To model the favorable environmental media content it is essential, firstly, to adjust it by: i) using the resource of opinion leaders and social advertising; ii) engaging the expert community in a broad public dialogue on environmental issues; iii) developing independent media projects aimed at radical transformation of the environmental agenda coverage in Chelyabinsk region. Keywords: information strategies, audience, ecology, identity, negative memory


2020 ◽  
pp. 306-311
Author(s):  
Sergey V. Lyubichankovsky ◽  

The article reviews the collection of documents “Emperor Alexander II and the Southern Urals,” published in 2019 and dedicated to the 200th anniversary of the Emperor. The book tells of the Tsarevich’s journey through the Southern Urals in 1837 and of manufacture of gifts to him by the Zlatoust craftsmen; a separate part consists of documents devoted to the reign of Alexander II and the impact of the Great Reforms on the development of the region. The collection ends with documents on the perpetuation of the Emperor’s memory. The review proves that this collection of documents closes the topic of relations between Alexander II and the Southern Urals, which has been little studied in the historiography. It concludes that the initiators of the publication – employees of the Joint State Archive of the Chelyabinsk Region – have included in the book legislative acts, recordkeeping materials, materials of the periodical press, sources of personal provenance, photographs, and visual materials. There is a list of archives and museums from which the sources originate: state archives of the Chelyabinsk, Orenburg, Sverdlovsk regions, the National Archive of the Republic of Bashkortostan, the Archive of the Zlatoust City District; the Verkhny Ufaley and Zlatoust local history museums; the Russian State Archive of Photo Documents, the State Russian Museum; the Department for Preservation of Historical Heritage of the South Ural Railway, the Russian State Historical Archive, and the State Archive of the Russian Federation. The review describes the structure of the collection and contends that it contributes to comprehensive coverage of the studied problems. It allows its readers to find the needed documents confidently and quickly, even with minimal research skills. Photo documents (little–known photographs and drawings) included in the collection complement the text quite successfully. The reviewers underscore that the publication contains three extensive introductory articles, the reading of which contributes to a deeper understanding of the sources. Thus, the review concludes that the collection has expanded the documentary base adequately in order to spur extensive research of the pre–revolutionary history of the Southern Urals.


Author(s):  
E. A. Krasnoperova ◽  
Yu. A. Karmatskikh

Agriculture and the agro-industrial complex as a whole are the most important components of the world economy. The volume of production and consumption of products, their quality and availability characterize the standard of living of the population. Of course, these indicators are not the only ones, but they are the leading elements of the country’s food security, health and well-being of its population. It is only in recent years that food quality has become a priority in developed countries. Agricultural production technologies have changed signifi cantly since the mid-twentieth century. The same applies to Russia. Plowing of virgin and fallow lands in Siberia, the Southern Urals and the Far East reduced the area of haymaking and pasture lands, more than 25 million hectares of fallow land were plowed. On the other hand, the increase in livestock numbers increased the burden on pasture lands, which did not always cope with the restoration of land fertility. As a result, many valuable forage grasses have disappeared and less productive and poisonous plants have spread. The purpose of the work was to consider the main directions of greening the agro-industrial complex in the Chelyabinsk region. The causes, consequences and features of greening the agro-industrial complex have been analyzed in the article. It was found as a result of the conducted observations that the problem of greening the agroindustrial complex has become more acute in the last 50–60 years and is a consequence of not always justifi ed decisions of economic activity. This aff ected the greening of agriculture: soil, water sources and air pools. The deterioration of the environmental situation in the Chelyabinsk region as a whole and also in agriculture, almost all industries and vehicles participated. The issues of the ecology in agriculture and the agro-industrial complex are directly related to the quality of food, the state of health and working capacity of citizens.


Author(s):  
Yu.G. Gribovsky ◽  
◽  
D.Yu. Nohrin ◽  
N.A. Davydova ◽  
A.N. Torchitsky ◽  
...  

The article presents the results of comparative analysis of contamination with heavy metals of fish within the framework of comprehensive, expanded ecotoxicological monitoring of freshwater and mineralized lake farms of the Southern Urals with varying degrees of anthropogenic load. At this stage, 3 reservoirs with varying degrees of salinity were studied: Mayan, Kurakli-Mayan and Sugoyak. Atomic absorption spectrophotometric method determined the content of 8 heavy metals in the bone and muscle tissue of various fish species. It was found that in muscle tissue, maximum concentrations were noted for iron and zinc, which are necessary for normal functioning of fish. Manganese and cobalt were the most variable in the composition of muscle tissue. It is shown that detected concentrations of heavy metals are within the previously established values for the reservoirs of Chelyabinsk region. The number of studied normalized elements (Pb, Cd) did not exceed the established maximum values for fish and fish products. Increased water salinity in the studied lakes is not an obstacle to their use in fisheries purposes.


Author(s):  
N.V. Glaz ◽  
◽  
A.K. Gorbunov

Research 2019-2020 in the conditions of the forest-steppe zone of the Chelyabinsk region showed that the effect of glauconite on the yield and seed productivity of potatoes largely depends on the variety. The effect of glauconite (in doses from 10 to 40 t / ha) on the yield of tubers was proportional to the duration of the growing season of the varieties. The highest yield gains from glauconite were observed in the mid-ripening variety Tarasov – 4.05–4.62 t/ha, then in the medium-early variety Nevsky – 3.26–3.63 t/ha, and the smallest – were in the early variety Rosara – 1.95–2.26 t/ha. Whereas the effect of glauconite on the seed productivity of varieties had the opposite pattern: the greatest increase was observed in early-maturing varieties (Rozara – 1.30–1.56 times, Nevsky – 1.30–1.61 times), and the smallest – in the mid-season variety Tarasov (1.17–1.25 times).


10.12737/6546 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 135-138
Author(s):  
Мухитов ◽  
Lenar Mukhitov ◽  
Самуилов ◽  
Feofan Samuilov

The impact of contrasting conditions of water availability on the size of the upper internodes in wheat varieties was studied under the conditions of the Orenburg steppe zone. It was noted, that less drought-resistant varieties formed a short upper internodes. We conducted a mathematical analysis of the relationship of productivity and length of ear-carrying internodes of spring soft wheat varieties of different ecological groups. It was established, that we can observe a gradual increase of grain productivity with increasing the length of the upper internodes in the studied range. As a result, the following varities were selected for inclusion into the hybridization: Logachevka, Tulaykovskaya steppe, Tulaykovskaya 1, Tulaykovskaya Belozernaya, Prokhorovka and Uchitel. They have the optimal settings for the presented feature. Using the selected varieties as parental forms can enhance the efficiency of wheat breeding programs for resistance to drought in the forest-steppe zone of the Southern Urals.


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