GEOECOLOGICAL CHARACTERISTIC OF THE CHEBOKSARY RESERVOIR COAST

Author(s):  
Natalya Sitina ◽  
Natalya Sitina ◽  
Tatyana Sitina ◽  
Tatyana Sitina

Construction of Cheboksary hydroelectric power station with a reservoir was begun in 1968 and was stopped in 1981. The hydrostation was put into operation when filling a reservoir to a mark of 63,0 m with incomplete construction of protective actions. As a result of rise in level of the Cheboksary reservoir to 68,0 m territories of the Nizhny Novgorod Region, the Republics of Mari El and the Chuvash will be flooded. Operation of the Cheboksary reservoir within 33 years on a temporary mark of the retaining level of 63,0 m promotes further development of possible negative impacts and deterioration of life of the population in points of accommodation getting to a zone of influence of a reservoir. In work problems of influence of the Cheboksary reservoir on the nature of adjacent territories are considered. The analysis of influence of natural and technogenic factors on the Cheboksary reservoir is submitted. Comparative research of the territory of a right bank and left bank on studying of hydrological and hydrogeological processes and processing of coast in a zone of influence of a reservoir on key points is conducted. The state is considered recreational development of the territory. Features of a current state of technical objects of the Cheboksary reservoir are defined, the geoecological situation on coast of a reservoir on the studied key sites is revealed. Recommendations about decrease in negative impact of recreational use of coastal zones of a reservoir are developed.

Author(s):  
Natalya Sitina ◽  
Natalya Sitina ◽  
Tatyana Sitina ◽  
Tatyana Sitina

Construction of Cheboksary hydroelectric power station with a reservoir was begun in 1968 and was stopped in 1981. The hydrostation was put into operation when filling a reservoir to a mark of 63,0 m with incomplete construction of protective actions. As a result of rise in level of the Cheboksary reservoir to 68,0 m territories of the Nizhny Novgorod Region, the Republics of Mari El and the Chuvash will be flooded. Operation of the Cheboksary reservoir within 33 years on a temporary mark of the retaining level of 63,0 m promotes further development of possible negative impacts and deterioration of life of the population in points of accommodation getting to a zone of influence of a reservoir. In work problems of influence of the Cheboksary reservoir on the nature of adjacent territories are considered. The analysis of influence of natural and technogenic factors on the Cheboksary reservoir is submitted. Comparative research of the territory of a right bank and left bank on studying of hydrological and hydrogeological processes and processing of coast in a zone of influence of a reservoir on key points is conducted. The state is considered recreational development of the territory. Features of a current state of technical objects of the Cheboksary reservoir are defined, the geoecological situation on coast of a reservoir on the studied key sites is revealed. Recommendations about decrease in negative impact of recreational use of coastal zones of a reservoir are developed.


2008 ◽  
pp. 101-107
Author(s):  
Dubravka Polic ◽  
Ruzica Igic ◽  
Slobodanka Stojanovic ◽  
Dejana Lazic

Labudovo okno locality (50 m-84 m elevation) is situated in the south-eastern part of the edge of the Pannonian Plains, resting along the left bank of the Danube between 1982 km and 1078 km. The investigated locality is the result of rise of the Danube level after dam building of the hydroelectric power station Djerdap I. The vegetation comprises aquatic associations of the classes Hydrochari-Lemnetea Oberd. 1967 and Potametea Tx. et Prsg. 1942. The class Hydrochari-Lemnetea Oberd. 1967 includes the following phytocoenoses: Lemno-Spirodeletum W. Koch 1954, Salvinio-Spirodeletum polyrrhizae Slavnic 1956, Lemno minoris-Azolletum filiculoides Br.-Bl. 1952, Ceratophylletum demersi (So? 27) Hild 1956. The class Potametea Tx. et Prsg. 1942 includes the associations Myriophyllo-Potametum So? 1934, Nympaeetum albo-luteae Nowinski 1928, Trapetum natantis M?lleret G?rs 1960.


2020 ◽  
Vol 11 (7-2020) ◽  
pp. 19-32
Author(s):  
Olga E. Konovalova ◽  
◽  
Nikolai M. Kuznetsov ◽  

The article tells the story of the creation of the Nizhne-Tulomskaya hydroelectric power station (HPP). The main energy parameters of the hydroelectric power station, the layoutof the main structures of the station, and archival photos of the construction time are given. Data on the production and consumption of electricity for own needs, the cost of 1 kW·h during the great Patriotic war are shown. It is told about the reconstruction and current state of the station.


2019 ◽  
Vol 18 (3) ◽  
pp. 62-73
Author(s):  
A. N. Chekha

Purpose. There are many archaeological sites located in the North Angara region. Although this territory has been investigated since 18th century, most intensive work was done during rescue archaeological works on Boguchany hydroelectric power station in 2008–2011. One of the valuable sources of artifacts is the Kutarey site. Our work contains a brief analysis of stone industries of the Kutarey River Mouth site. The main goal of this work is to apply technical and typological analysis to mark the specificity of the stone industries of layer 2 of the Kutarey River Mouth site in comparison with the results that had been previously published on layer 3 in the context of new data of this region in terms of ceramics complexes. We introduce a previously unpublished collection of stone artifacts of layer 2 of the Kutarey River Mouth site, which significantly extends the source base of the Neolithic and Bronze Age in this region. Results. The Kutarey River Mouth site is located on the left bank of the Angara River, 15 km down from the Kezhma village, on the right bank of the Kutarey River. The location was found in 1974 by N. I. Drozdov and his squad. The site was further investigated in 2008 and in 2010 by an IAE SB RAS squad (guided by A. N. Savin). Firstly, the site was determined as a Neolithic location, but as result of 2010 excavations three Neolithic-Middle Age cultural horizons were discovered. In the context of the difficulties connected with conducting investigations in this region, namely an open location, a low stratigraphy situation, a high extend of technogenic interruption, the materials of layer 3 are most perspective due to a high grade of saturation of the artifacts and minimal technogenic interruptions. These materials belong to the Neolithic and Paleometal Era. In order to clarify cultural and chronological specificity of this complex, it is necessary to analyze materials from layer 2. The stone industry of layer 2 is represented by retouching microblades, bladelets, tools for blades, flakes, scrapers including one microscraper, bifaces, several adzes, axes, and one piercing tool. Of special interest are blade points and trihedral and tetrahedral points. Conclusion. Our technical and typological analyses show that in comparison to layer 3, layer 2 is characterized by a small number of massive axes and adzes, no flints, few double scrapers, and only volume splitting tools aimed mainly at obtaining a small blade. Also, despite the fact that the core of the collection is the product of the hornstones of local origin, we observe a significant increase in the percentage of artifacts made of flint (13 %), which may indicate some new commodity strategies. The most interesting analogy can be traced with the dedicated Upper Kolyma Early Holocene complex, which contained blade points widely distributed in Northeast Asia and was present directly or indirectly in the materials from Chukotka (Verkhnetirsky IV and Nizhnechutinsky IV), Yakutia (Olbinski burial ground, Jubilee), Kamchatka (the Ushki I–IV layer, Avacha 1,9). This complex is believed to belong to specific Volbinsky traditions, which formed in the first half of the Holocene, about 8800–6000 years ago. It is also worth comparing these materials with other Kutarey sites – Sen’kin (Siniy) Kamen’, Ruchei Povarny, Gora Kutarey and adjacent territories.


2020 ◽  
Vol 9 (3) ◽  
pp. 28-31
Author(s):  
Olga V. Bulycheva ◽  
Aleksander A. Baranov

This paper discusses the current state of the avifauna on the territory of the Krasnoyarsk Reservoir. To date, the species composition of birds in the study area has not been studied, although it is worth noting the need to study the distribution of birds in this area. The construction of the Krasnoyarsk hydroelectric power station led to changes in the hydrological regime of the Yenisei River with subsequent flooding of the surrounding territory, as a result of which various geological processes of collapse of the Krasnoyarsk Reservoir banks are observed. Bank metamorphoses can also influence the spatial distribution of birds and creation of new ornithocomplexes. Our ecological and faunal analysis was carried out over two years (20182019) at nine key points along the bank lines of the Krasnoyarsk Reservoir within a radius of one kilometer from the water to identify the impact of geological changes in the banks on the nature of bird placement. The key areas of the study were determined, taking into account various biotopic habitat conditions that attract birds. Monitoring of avifauna on the territory of the Krasnoyarsk Reservoir will allow us to assess the degree of influence of changes in the geological processes of the banks on the spatial and biotopic distribution of birds, and it is also possible to forecast the disappearance or movement of some species and subspecies on this territory.


2013 ◽  
Vol 2 (2) ◽  
pp. 31-38 ◽  
Author(s):  
Peter Longo ◽  
Richard Cummings

Dams have long fascinated engineers, policymakers, and citizens-at-large. No doubt the engineering and architectural details of physical construction of dams are worth study and scrutiny, but it is the human dimension that complicates dam policies. Dams can result in tremendous negative impacts on human populations. Yet, dams provide a source of renewable energy, hydroelectric power. Analyzing these issues in a global perspective offers strategies for policy makers to consider. This paper will analyze the negative impact dams have on humans, illustrate the hydroelectric push for dams and how they impact food production. Finally, global policy strategies will be offered with consideration of environmental accounting and an indication of the future of water and food.


VAVILOVIA ◽  
2020 ◽  
Vol 2 (3) ◽  
pp. 56-70
Author(s):  
L. Yu. Shipilina

The study of regional floras is one of the main tasks of floristics, which allows one to make the most complete inventory and analyze the species composition. The analysis results in a reconstructed picture of the vegetation development in the investigated area. Human economic activities in the area have created new habitats for the species whose main distribution range is far beyond boundaries of the area. Therefore, the main objective of the study was to study the flora of the islands in the lower Vyg River. To achieve the goal, the route-reconnaissance method was used. The performed work revealed the constancy of the species composition of the flora of the islands. All in all, 136 species were found on the islands, 50% of which are common in this territory and make up the main core, which is part of the northern taiga flora. The differences between the floristic composition of the islands are due to the current state of the Vyg River, altered by the dam of the hydroelectric power station, and a large anthropogenic pressure associated with the development of tourism in the places of petroglyphs accumulation.


2013 ◽  
Vol 438-439 ◽  
pp. 1363-1366
Author(s):  
Jun Liu

The earth-rock dam on left bank of the head of DJIPLOHO Hydroelectric Power Station adopts the clay core dam. Due to the tropical oceanic climate which is hot and rainy, the soil of clay core wall has high water content. Through the compaction experiment on site, it chooses suitable dry density, formulates reasonable rolling parameters and finally achieves good construction quality, which ensures the construction progress and meets the requirement of engineering. This accumulates valuable experience for the design and construction of same types engineering.


2021 ◽  
Vol 264 ◽  
pp. 03027
Author(s):  
Kenesbay Baimanov ◽  
Kadirbek Nazarbekov ◽  
Ruslan Baimanov ◽  
Sharap Tazhibayev

The Amu Darya river carries a large amount of up to 15 kg/m3 of suspended matter containing up to 85-90% suspended and 10-15% bottom sediments, which pose a serious threat to the hydroelectric power station and irrigation systems operating in its basin. In case of dam water intake, head sump tanks are provided in the composition of waterworks. So, in the composition of Right-Bank and Left-Bank, sedimentation tanks with mechanical cleaning to protect the channels were built at the Takhiatash hydroelectric complex Kaskelenskaya and Selinsky irrigation system. It is established that the hydraulic and alluvial modes of operation of these settling tanks depend on the water, alluvial, and backwater modes of operation Takhiatash waterworks. It is noted that due to low water conditions, this hydroelectric power plant operated for a significant part of the year with fully closed gates in all spans, producing intensive siltation of the upper stream. These processes led to a change in the alluvial mode of operation of the settling tanks. At the same time, due to low water and excessive design dimensions, in the first years of operation, these settling tanks were heavily silted up, the bottom mark rose to 17.2 m (above the design 165 m). Properly designed settling tanks should prevent siltation of main and distribution channels while respecting the transport capacity of the channels located below. It is proved that some well-known methods for calculating settling tanks, due to their complexity and bulkiness, cannot be used in calculating siltation modes of settling tanks under operational conditions that require simplification or finding a simpler relationship. A simple method is developed for calculating the dynamics of sediment deposition in irrigation sump tanks based on the probability of turbulent pulsation motion. Recommended: for normal operation of irrigation septic tanks, it is necessary to carry out systematic monitoring of the output turbidity and intensity of treatment, as well as water supply according to the water consumption schedule.


Author(s):  
Olga N. Yanenko ◽  

The article considers negative trends in demographic processes associated with the impact of the environment on the life and health of the Krasnoyarsk city population. Methodological features of the study of the research subject are discussed, as well as the elaboration of the problem within the framework of specific sciences is analyzed. To what extent does the habitat with an increased level of technogenic pollution affect the subjective attitudes of residents, their needs, opinions, plans, and decision-making regarding demographic aspects of life? The presented results of expert interviews with specialists in the field of environmental protection and public health were taken by the author in November 2020. They indicate a truly deplorable situation in one of the major industrialized cities of Russia, Krasnoyarsk. The main pollutants are supposed to be transport, the RUSAL aluminum plant, the private sector with coal-fired heating and three coal-fired power plants. The Krasnoyarsk hydroelectric power station has a negative impact as well. The experts point to the obvious insufficiency of studying the problem of the impact on the demographic indicators and behavior of citizens, which is associated with the lack of open information about the level of the Krasnoyarsk urban environment pollution and specialized research in this direction.


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