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Каталог книг и продолжающихся изданий библиотеки Института биофизики СО РАН

Иностранные журналы библиотеки Института биофизики СО РАН

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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Shevyrnogov A. P., Kononova N. A., Volkova A. I., Botvich I. Y., Pisman T. I.
Заглавие : A study of seasonal dynamics of herbaceous plant communities in Khakassia using ground-based and satellite data
Место публикации : IOP Conference Series: Earth and Environmental Science: IOP Publishing Ltd, 2021. - Vol. 677: 4th International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies, AGRITECH-IV 2020 (18 November 2020 through 20 November 2020, ) Conference code: 167873, Is. 2. - Ст.022072. - , DOI 10.1088/1755-1315/677/2/022072
Аннотация: The present study addresses the seasonal dynamics of productivity and species composition of the meadow and steppe vegetation communities in Khakassia, determined using the ground-based and satellite data of 2017. The MODIS/Terra satellite data were used to analyze the Normalized Difference Vegetation Index (NDVI) and the Land Surface Water Index (LSWI). The NDVI and LSWI were found to be related to the productivity of the meadow and steppe vegetation. The NDVI increased as the portion of the mesophyte grasses in the grass canopy became larger. The LSWI was higher in the steppe communities, which had lower projective coverage, with spots of bare soil, than in the meadow communities, with their abundant vegetation. © Published under licence by IOP Publishing Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Babich, Valery V., Darin, Andrey, V, Kalugin, Ivan A., Markovich, Tatyana, I, Zykov, Viktor V., Rogozin, Denis Yu
Заглавие : SEASONAL VARIABILITY OF SEDIMENTATION FLOWS IN SALT MEROMICTIC LAKE SHIRA (KHAKASSIA)
Колич.характеристики :13 с
Коллективы : Ministry of Science and Higher Education of the Russian Federation; RFBRRussian Foundation for Basic Research (RFBR) [21-54-52001, 19-05-50046]
Место публикации : Bull. Tomsk Polytech. Univ.-Geo Assets Eng.: TOMSK POLYTECHNIC UNIV, PUBLISHING HOUSE, 2021. - Vol. 332, Is. 12. - С. 22-34. - ISSN 2500-1019, DOI 10.18799/24131830/2021/12/3178. - ISSN 2413-1830(eISSN)
Примечания : Cited References:29. - The work was carried out on state assignment of IGM SB RAS, supported by the Ministry of Science and Higher Education of the Russian Federation, with partial support of the RFBR - grant 21-54-52001 (setting of traps, sampling) and grant 19-05-50046 (micro-XRF-SR).
Предметные рубрики: CENTRAL TIBETAN PLATEAU
NAM-CO
VARVE
Аннотация: The relevance of the work is caused by the need to study seasonal variations in the volume and composition of sedimentation flows in modern lakes and their relationship with weather and climatic factors, which can serve as a basis for reconstructing climatic changes in the past. The main aim: to assess seasonal changes in the mass, velocity and chemical composition of sedimentary material entering Lake Shira on the basis of generalization and analysis of the results of multiyear annual monitoring of the material of sedimentation traps incubated in the lake. Object of the study was the drainless, slightly saline meromictic lake Shira, located in the steppe intermontane depression on the territory of the Republic of Khakassia. Methods: long-term seasonal monitoring of sedimentary material forming bottom sediments using sedimentation traps incubated in the lake; study of the obtained material for a wide range of parameters (biological, hydrochemical, lithological-geochemical, granulometric, etc.) by various conventional methods, including the method of X-ray fluorescence microanalysis on synchrotron radiation beams (XRF-SI), adapted for the study of bottom samples; computer statistical analysis of the data obtained (multiple regression method, cross-correlation analysis, etc.) in order to identify the relationship between regional temperatures and the chemical composition of the deposited material with the construction of a regression model. Results. Based on the study of the amount and elemental composition of the sedimentary material of the seasonal bottom traps of Lake Shira, collected for 2012-2017, a dynamic model of the seasonal influx of sedimentary flows in lakes of this landscape-geochemical type was formulated. It has been established that the most intensive sedimentation of the material occurs in the summer-autumn period, less - in the winter-spring period. At the same time, in spring, the accumulation of allochthonous (terrigenous) aleurite material, supplied with flood waters, predominates; in the summer-autumn period, simultaneously with the deposition of clastogenic pelitic material, biogenic and chemogenic materials are accumulated in sediments in large quantities. In winter, clastogenic and biogenic processes of sedimentation practically stop, only chemogenic sedimentation of carbonates is observed. It was established that the sedimentation of allochthonous material entering the reservoir occurs during two-three months, which indicates a certain inertness of sedimentation. The presence of a stable relationship between the mass and chemical composition of terrigenous material entering the lake with the regional temperature of the near-surface air, which is one of the main regulators of the water balance of the reservoir, is shown.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gaysina L. A., Fazlutdinova A. I., Mukhina O. N., Akhmadeyeva L. F., Rogozin D. Y.U., Bul'Khin A. O., Sukhanova N. V., Johansen J. R.
Заглавие : Ecological features of cyanobacteria and algae communities of the littoral of the meromictic Lake Shira (Khakassia Republic, Russia)
Место публикации : Theor. Appl. Ecol.: Publishing House "O- Kratkoe", 2020. - Vol. 2020, Is. 1. - С. 47-50. - ISSN 19954301 (ISSN), DOI 10.25750/1995-4301-2020-1-047-050
Аннотация: During the study of cyanobacteria and algae from littoral of the meromictic Lake Shira (Republic of Khakassia, Russia) forty-eight taxa were identified: Cyanobacteria - 7, Chlorophyta - 5, and Bacillariophyta - 36 species. Cyanobacteria were represented by cosmopolitan taxa Leptolyngbya voronichiniana, cf. Trichocoleus hospitus and widely distributed in the freshwater ecosystems species Phormidium cf. paulsenianum, Pseudophormidium cf. golenkinianum, P. pauciramosum, Leptolyngbya perforans, and L. subtilissima. Among green algae typical freshwater taxa Chloroidium saccharophilum, Desmodesmus abundans, Oocystis lacustris, Chlorella sp., Stigeoclonium sp. were detected. Among Bacillariophyta the most frequent species were Amphora ovalis, Cymbella affinis, Encyonema silesiacum, Eunotia fallax, Gomphonella olivacea, G. parvulum, Kobayasiella subtilissima, Navicula minima, N. radiosa, N. veneta, Nitzchia fonticola, N. palea, Grunowia tabellaria, Surirella undulata. Several rare species cf. Fragilaria tenera, Grunowia tabellaria and cf. Ulnaria capitata were found. In relation to mineralization indifferents was the largest group (73%). In relation to pH, a unique feature of the investigated lake was the predominance of alkaliphilic species of diatoms (56%), such as Amphora ovalis, Cymbella affinis, Gomphonema truncatum, Hantzschia amphioxys, Navicula minima, N. veneta, Nitzschia cf. linearis, N. palea, Planothidium lanceolatum and other. In the geographic structure cosmopolitan group included 25 species (69%), boreal group - 4 species (11%), arcto-apline group - 2 species (6%). To obtain more accurate information on the biodiversity of cyanobacteria and algae of Lake Shira further studies using molecular-genetic and electron microscopic methods are needed. © 2020 Publishing House "O- Kratkoe". All rights reserved.
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Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Bartsev S., Ivanova Y., Saltykov M.
Заглавие : Usage of different neural networks in identification of plant types
Место публикации : IOP Conference Series: Materials Science and Engineering: Institute of Physics Publishing, 2020. - Vol. 734: 2nd International Scientific Conference on Advanced Technologies in Aerospace, Mechanical and Automation Engineering, MIST: Aerospace 2019 (18 November 2019 through 21 November 2019, ) Conference code: 157461, Is. 1. - Ст.012097. - , DOI 10.1088/1757-899X/734/1/012097
Аннотация: Since introduction of neural networks into remote sensing they demonstrate good efficiency in remote sensing data analysis. This work is devoted to processing of multispectral (12 bands) images from Sentinel-2(A, B) satellites. Satellite images of areas in Krasnoyarsk Region and Khakassia with known vegetation types are used as task books to train neural networks. Trained neural networks have been reduced to determine which bands are significant for vegetation type identification. Reduction of trained neural network show that vegetation type can be determined from only four infrared bands without significant loses in performance in comparison with non-reduced neural network. © Published under licence by IOP Publishing Ltd.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gaysina L. A., Fazlutdinova, A., I, Mukhina N., Akhrnadeyeva L. E., Rogozin, D. Yu, Bul'khin A. O., Sulehanova, N., V, Johansen J. R.
Заглавие : Ecological features of cyanobacteria and algae communities of the littoral of the meromictic Lake Shira (Khakassia Republic, Russia)
Колич.характеристики :4 с
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-05-00428]; internal grant of M. Akmullah Bashkir State Pedagogical University; RFBRRussian Foundation for Basic Research (RFBR) [19-04-20031]
Место публикации : Theor. Appl. Ecol.: LLC PUBLISHING HOUSE, KAMERTON, 2020. - Is. 1. - С. 47-50. - ISSN 1995-4301, DOI 10.25750/1995-4301-2020-1-047-050. - ISSN 2618-8406(eISSN)
Примечания : Cited References:18. - The study was supported by Russian Foundation for Basic Research in the frame of project 19-05-00428 and an internal grant of M. Akmullah Bashkir State Pedagogical University for the year 2019. This article is published with financial support from the RFBR grant No. 19-04-20031.
Аннотация: During the study of cyanobacteria and algae from littoral of the meromictic Lake Shira (Republic of Khakassia, Russia) forty-eight taxa were identified: Cyanobacteria - 7, Chlorophyta - 5, and Bacillariophyta - 36 species. Cyanobacteria were represented by cosmopolitan taxa Leptolyngbya voronichiniana, cf. Trichocoleus hospitus and widely distributed in the freshwater ecosystems species Phormidium cf. paulsenianum, Pseudophormidium cf. golenkinianum, P. pauciramosum, Leptolyngbya perforans, and L. subtilissima. Among green algae typical freshwater taxa Chloroidium saccharophilum, Desmodesmus abundans, Oocystis lacustris, Chlorella sp., Stigeoclonium sp. were detected. Among Bacillariophyta the most frequent species were Amphora ovalis, Cymbella affinis, Encyonema silesiacum, Eunotia fallax, Gomphonella olivacea, G. parvulum, Kobayasiella subtilissima, Navicula minima, N. radiosa, N. veneta, Nitzchia fonticola, N. palea, Grunowia tabellaria, Surirella undulata. Several rare species cf. Fragilaria tenera, Grunowia tabellaria and cf. Ulnaria capitata were found. In relation to mineralization indifferents was the largest group (73%). In relation to pH, a unique feature of the investigated lake was the predominance of alkaliphilic species of diatoms (56%), such as Amphora ovalis, Cymbella affinis, Gomphonema truncatum, Hantzschia amphioxys, Navicula minima, N. veneta, Nitzschia cf. linearis, N. palea, Planothidium lanceolatum and other. In the geographic structure cosmopolitan group included 25 species (69%), boreal group - 4 species (11%), arcto-apline group - 2 species (6%). To obtain more accurate information on the biodiversity of cyanobacteria and algae of Lake Shira further studies using molecular-genetic and electron microscopic methods are needed.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Botvich I. Y., Zorkina T. M.
Заглавие : The Restoration Dynamics of Fallow Vegetation in the Steppe Zone of the Khakassia Republic Based on Terrain and Satellite Data
Место публикации : Biophysics: Pleiades Publishing, 2019. - Vol. 64, Is. 2. - С. 309-315. - ISSN 00063509 (ISSN) , DOI 10.1134/S0006350919020039
Аннотация: Abstract: The dynamics and specific features of the restoration of forbs–grass–wormwood and wormwood–grass phytocoenoses on fallow lands in the Altai region, the Republic of Khakassia, were determined on the basis of terrain and satellite data. The species composition, structure, and phytomass of the phytocoenoses were revealed. A gradual formation of structural elements of steppe communities in the studied areas was determined. This work showed the usefulness of time series of satellite data on the NDVI (Normalized Difference Vegetation Index) obtained with the use of MODIS (Moderate Resolution Imaging Spectroradiometer) for the study of specific features of restored fallows. In general the biological parameters, projective cover, and phytomass determine the value of the NDVI. Interannual NDVI variability reflects the rate and time period of fallow restoration. From a certain point, the parameters increased and became close to the steppe (control variant). It has been revealed that not only abiotic factors (climate and soils), but also biotic parameters (grazing and recreational load) affect the NDVI. In this connection, the duration of restoration stages does not always correspond to the published data. They vary under different conditions. Climatic data of the Abakan meteorological station (index 29862 in the network of the World Meteorological Organization) for the period from 2000 to 2017 were statistically treated. The long-term annual average norms of temperatures and precipitation amounts (year and month) for the World Meteorological Organization base period of 1961–1990 were calculated. The dynamics of the temperature and precipitation, using long-term series of data, has been analyzed. © 2019, Pleiades Publishing, Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kalugin I. A., Darin A. V., Babich V. V., Markovich T. I., Rakshun Y. V., Darin F. A., Sorokoletov D. S., Rogozin D. Y.
Заглавие : Indicators of Oxic and Anoxic Conditions in the System of the Current Sedimentation of Saline Lake Shira (Khakassia), According to High-Resolution SR XRF Data on Bottom Sediments Frozen In Situ
Место публикации : Bull. Russ. Acad. Sci. Phys.: Pleiades Publishing, 2019. - Vol. 83, Is. 2. - С. 198-203. - ISSN 10628738 (ISSN) , DOI 10.3103/S1062873819020163
Ключевые слова (''Своб.индексиров.''): fluorescence--geochemistry--lakes--lithology--terahertz waves--x rays--annual variations--anoxic conditions--bottom sediments--geochemical indicators--hydrological regime--quantitative estimates--terahertz radiation--x ray fluorescence--oxic sediments
Аннотация: Abstract: Frozen upper layers of the bottom sediment of Lake Shira are selected using special sampling equipment. Frozen samples and solid samples prepared from the upper layers of a sediment core are examined by means of X-ray fluorescence at the Local and Scanning X-Ray Fluorescence Elemental Analysis Station of the Siberian Synchrotron and Terahertz Radiation Center’s Shared Resource Center. Analytical data on the initial frozen and processed solid samples demonstrate the good repeatability of the results. Quantitative estimates of the sedimentation regimes are obtained, and geochemical indicators of the change in redox conditions are determined from the analysis data. Lithological and geochemical records are synchronized with regional seasonal and annual variations in weather and climate, and with the hydrological regime of the lake for the last 50 years. © 2019, Allerton Press, Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rogozin D. Y., Zykov V. V., Ivanova E. A., Anufrieva T. N., Barkhatov Y. V., Khromechek E. B., Botvich I. Y.
Заглавие : Meromixis and Seasonal Dynamics of Vertical Structure of Lake Uchum (South Siberia)
Колич.характеристики :12 с
Коллективы : Russian Foundation for Basic Research [16-05-00091]; Council for Grants of the President of the Russian Federation [NSh-9249.2016.5]
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2018. - Vol. 11, Is. 2. - С. 195-206. - ISSN 1995-4255, DOI 10.1134/S1995425518020117. - ISSN 1995-4263(eISSN)
Примечания : Cited References:43. - This study was supported by the Russian Foundation for Basic Research (project no. 16-05-00091) and by partial support from the Council for Grants of the President of the Russian Federation on governmental support of leading scientific schools (grant NSh-9249.2016.5).
Предметные рубрики: PHOTOTROPHIC SULFUR BACTERIA
SALINE MEROMICTIC LAKES
SHUNET KHAKASSIA
Ключевые слова (''Своб.индексиров.''): meromixis--hydrogen sulfide--stratification--salt lake--phototrophic--sulfur bacteria--phytoplankton--zooplankton--bottom sediments
Аннотация: The seasonal dynamics of the vertical structure of small saline Lake Uchum, located in the steppe arid zone of the south of Siberia (Krasnoyarsk krai), has been studied in detail for the first time. This lake is a meromictic water body. We have revealed a heterogeneous vertical distribution of plankton organisms and a dense population of purple sulfuric bacteria in the redox zone. The taxonomic composition and seasonal dynamics of phyto- and zooplankton are described. Presumably, the meromixis of Lake Uchum is due to the inflow of fresh water to the surface of the saline water body during the rise of its level in the early 20th century, similarly to lakes Shira and Shunet located nearby. The processes of salt displacement into the solution during the formation of ice, as well as the precipitation of salts in the winter, also contribute to the maintenance of permanent stratification. The information on the current state of the lake can be useful for reconstructing the climate by bottom sediments, as well as for creating a model of water quality and investigating the therapeutic properties of lake mud.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shevyrnogov A. P., Botvich, I. Yu., Kononova N. A., Pis'man T. I.
Заглавие : Remote Ground-Based and Satellite Monitoring of Vegetation
Колич.характеристики :6 с
Коллективы : RAS Siberian Branch Integrated Basic Research Program "Interdisciplinary Integrative Studies" for 2018-2020 [74]
Место публикации : Her. Russ. Acad. Sci.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2018. - Vol. 88, Is. 6. - С. 469-474. - ISSN 1019-3316, DOI 10.1134/S1019331618060138. - ISSN 1555-6492(eISSN)
Примечания : Cited References:20. - This study was performed within the RAS Siberian Branch Integrated Basic Research Program "Interdisciplinary Integrative Studies" for 2018-2020 (project no. 74) and a state assignment (state registration AAAA-A17-117013050027-1).
Предметные рубрики: GROWTH
Аннотация: Prospects for remote ground and satellite sensing to monitor agricultural (agrocenoses) and grass (meadows and steppes) vegetation are considered. This helps assess chlorophyll contents, crop yields, impurities of territories and identify agrocenoses. Investigation of vegetation on salinized soils identified the necessity to consider the succession of limiting factors (temperature and the degree of soil salinization). The results of studies on grassland plant communities in Khakassia based on geobotanical descriptions and ground spectral measurements are presented, allowing the refinement of methods that improve the accuracy of deciphering satellite images of medium and low resolutions.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vereshchagina, Kseniya, Kondrateva, Elizaveta, Axenov-Gribanov, Denis, Shatilina, Zhanna, Khomich, Andrey, Bedulina, Daria, Zadereev, Egor, Timofeyev, Maxim
Заглавие : Nonspecific stress response to temperature increase in Gammarus lacustris Sars with respect to oxygen-limited thermal tolerance concept
Колич.характеристики :17 с
Коллективы : Russian Science Foundation [17-14-01063]; Russian Foundation for Basic Research [16-34-00687, 16-34-60060, 17-34-50012]; Goszadanie project joint program of DAAD [6.9654.2017/8.9]; Ministry of education and Science M. Lomonosov [6.12735.2018/12.2]; Lake Baikal Foundation [FOB_02-3/05]
Место публикации : PeerJ: PEERJ INC, 2018. - Vol. 6. - Ст.e5571. - ISSN 2167-8359, DOI 10.7717/peerj.5571
Примечания : Cited References:49. - The study was carried out with the main financial support of Russian Science Foundation grant 17-14-01063, with the partial financial support of Russian Foundation for Basic Research grants 16-34-00687, 16-34-60060, 17-34-50012, the base part of Goszadanie project 6.9654.2017/8.9, joint program of DAAD and Ministry of education and Science M. Lomonosov (6.12735.2018/12.2) and Lake Baikal Foundation (FOB_02-3/05). There was no additional external funding received for this study. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Предметные рубрики: COPEPOD TIGRIOPUS-JAPONICUS
SHUNET SOUTH SIBERIA
HEAT-SHOCK PROTEINS
Ключевые слова (''Своб.индексиров.''): gammarus lacustris--heat shock proteins 70 (hsp70)--nonspecific cellular--stress-response (ncsr)--lactate dehydrogenase--diene conjugates--schiff--bases--triene conjugates
Аннотация: The previously undescribed dynamics of the heat shock protein HSP70 and subsequent lipid peroxidation products have been assessed alongside lactate dehydrogenase activity for Gammarus lacustris Sars, an amphipod species from the saltwater Lake Shira (Republic of Khakassia). Individuals were exposed to a gradual temperature increase of 1 degrees C/hour (total exposure duration of 26 hours) starting from the mean annual temperature of their habitat (7 degrees C) up to 33 degrees C. A complex of biochemical reactions occurred when saltwater G. lactustris was exposed to the gradual changes in temperature. This was characterized by a decrease in lactate dehydrogenase activity and the launching of lipid peroxidation. The HSP70 level did not change significantly during the entire experiment. In agreement with the concept of oxygen-limited thermal tolerance, an accumulation of the most toxic lipid peroxides (triene conjugates and Schiff bases) in phospholipids occurred at the same time and temperature as the accumulation of lactate. The main criterion overriding the temperature threshold was, therefore, the transition to anaerobiosis, confirmed by the elevated lactate levels as observed in our previous associated study, and by the development of cellular stress, which was expressed by an accumulation of lipid peroxidation products. An earlier hypothesis, based on freshwater individuals of the same species, has been confirmed whereby the increased thermotolerance of G. lacustris from the saltwater lake was caused by differences in energy metabolism and energy supply of nonspecific cellular stress-response mechanisms. With the development of global climate change, these reactions could be advantageous for saltwater G. lacustris. The studied biochemical reactions can be used as biomarkers for the stress status of aquatic organisms when their habitat temperature changes.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Semenov S. V., Balaev D. A., Shaykhutdinov K. A., Rogozin D. Y.
Заглавие : Day plots of bacterial magnetite from sediments of shira lake (Khakassia, Russia)
Место публикации : J. Sib. Fed. Univ. Math. Phys.: Siberian Federal University, 2017. - Vol. 10, Is. 2. - С. 252-256. - ISSN 19971397 (ISSN) , DOI 10.17516/1997-1397-2017-10-2-252-256
Ключевые слова (''Своб.индексиров.''): bacterial magnetite--magnetic hysteresis--nanoparticles
Аннотация: The domain state of magnetite detected in sediments of Shira lake (Khakassia, Russia) was examined by means of magnetic hysteresis. Analysis of experimental data obtained on samples from different parts of bottom sediment cores in terms of Day plots allowed us to conclude that magnetite particles are in the pseudo-single-domain state. This indicates respectively small size of magnetite particles ( 100 nm) and reveals their bacterial origin. Biogenic magnetite buried in the bottom sediments can indicate the climatic changes in the Shira lake level in the Late Holocene. © Siberian Federal University. All rights reserved.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Belolipetskii V. M., Degermendzhi A. G., Genova S. N., Rogozin D. Y.
Заглавие : Change in the circulation regime in the stratified saline Lake Shira (Siberia, Republic of Khakassia)
Место публикации : Dokl. Earth Sci.: Maik Nauka-Interperiodica Publishing, 2017. - Vol. 474, Is. 2. - С. 649-652. - ISSN 1028334X (ISSN) , DOI 10.1134/S1028334X17060010
Ключевые слова (''Своб.индексиров.''): arid regions--lakes--mixing--climate scenarios--continental climate--in-situ data--incomplete mixing--simplified mathematical model--strong winds--vertical stratification--vertical structures--reservoirs (water)
Аннотация: The in-situ data on the vertical structure and stability of the vertical stratification of saline Lake Shira over the past decade (2007–2015) are analyzed. Simplified mathematical models have shown that strong wind in the autumn of 2014 together with rather thick ice in the winter of 2015 caused a change in the circulation regime of this water reservoir from meromictic (incomplete mixing) to holomictic (compete mixing). Based on the results obtained, a circulation regime for deep saline lakes located in the continental climate zone, in particular, in the arid zones of Southern Siberia (Khakassia, Transbaikal, and Altai) can be predicted under various climate scenarios of the future. © 2017, Pleiades Publishing, Ltd.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Botvich I. Y., Shevyrnogov A. P.
Заглавие : A study of the phenological variability of terrestrial ecosystems in the south of the Krasnoyarsk Territory and Khakassia based on satellite data
Место публикации : Biophysics: Maik Nauka-Interperiodica Publishing, 2017. - Vol. 62, Is. 4. - С. 667-670. - ISSN 00063509 (ISSN) , DOI 10.1134/S0006350917040030
Ключевые слова (''Своб.индексиров.''): agricultural crops--phenology--satellite data--woody vegetation
Аннотация: The patterns of the phase portraits of vegetation (agrophytocenosis, woody vegetation) constructed using two-dimensional space radiation temperature values and Normalized Difference Vegetation Index were studied. An analysis of the phenological variability of vegetation in the south of the Krasnoyarsk Territory and the Republic of Khakassia during the growing seasons of 2003 and 2006 was carried out. Distinctive features of the phase portraits of agrophytocenosis and woody vegetation were revealed. The possibility of determining the boundaries of phenological states in the phytocenosis, and the transition range from one state into another was shown. Based on the complex analysis of the reflexive and radiative properties of the plant samples, an algorithm for calculating the start and end of the growing season was developed. © 2017, Pleiades Publishing, Inc.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Rogozin D. Y., Zykov V. V., Tarnovskii M. O.
Заглавие : Dynamics of purple sulfur bacteria in a meromictic saline Lake Shunet (Khakassia, Siberia) in 2007–2013
Место публикации : Microbiology. - 2016. - Vol. 85, Is. 1. - С. 93-101. - ISSN 00262617 (ISSN) , DOI 10.1134/S0026261716010100
Ключевые слова (''Своб.индексиров.''): long-term dynamics--meromictic lake--purple sulfur bacteria--stratification
Аннотация: According to the results of seasonal monitoring, in 2007–2013 purple sulfur bacteria morphologically similar to Thiocapsa sp. Shira_1 (AJ633676 in EMBL/GenBank) predominated in the anoxygenic phototrophic community of the water column of the meromictic Lake Shira (Khakassia, Siberia). No pronounced seasonal periodicity in the total cell number in the water column was revealed during the period of observation. In some years cell number during the period when the lake was covered with ice was reliably higher than in summer. The absence of seasonal periodicity was probably due to the low amplitude of seasonal variations in temperature and illumination in the redox zone, resulting from its relatively deep location (12–16 m). The year-to-year dynamics was characterized by a reliable decrease of the total cell number in 2009–2010 and maxima in 2007 and 2011–2012. Canonical correlation analysis revealed that water temperature in the redox zone was the best predictor of the PSB abundance in Lake Shira. Water temperature, in turn, depended on the depth of mixing of the water column. Intense mixing in 2009–2011 was probably responsible for decreased PSB abundance in the lake. On the other hand, the absence of deep winter mixing, resulting in stable conditions in the chemocline, favored the preservation of relatively high PSB biomass. Prediction of circulation depth, which depends mainly on the weather conditions and dynamics of the water level, is required for prediction of PSB abundance in Lake Shira. These results may be useful for paleolimnological reconstructions of the history of the lake based on the remnants of purple sulfur bacteria in bottom sediments. © 2016, Pleiades Publishing, Ltd.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolobanschikova, G. N., Rogozin, D. Yu., Firsova, A. D., Rodionova, E. V., Degermendzhy, N. N., Shabanov, A. V.
Заглавие : Analysis of diatom algae from the water column and bottom sediments of Shira Lake (Khakassia, Russia)
Колич.характеристики :13 с
Коллективы : Russian Foundation for Basic Research [13-05-00429-a], Biodiversity Program for Basic Research, Russian Academy of Sciences [30.8]
Место публикации : Contemp. Probl. Ecol.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2015. - Vol. 8, Is. 2. - С. 173-185. - ISSN 1995-4255, DOI 10.1134/S1995425515020031. - ISSN 1995-4263(eISSN)
Примечания : Cited References:21. - This work was supported by Russian Foundation for Basic Research, project no. 13-05-00429-a and the Biodiversity Program for Basic Research, Russian Academy of Sciences, project no. 30.8.
Ключевые слова (''Своб.индексиров.''): paleolimnology--diatom algae--meromictic lake--sedimentation--cyclotella--choctawhatcheeana--aulacoseira valida--aulacoseira ambigua
Аннотация: Lake Shira as a meromictic lake is object of interest for paleolimnological studies. In May 2011 core samples were collected from the bottom of Lake Shira and the species composition of diatom algae, which serve as bioindicators of the state of the lake, were studied. In addition, in 2012, seasonal water samples and material from sediment traps were collected and the species composition of diatoms in them was analyzed. The results of the analysis showed that the lake, like in previous years of research, was dominated by Cyclotella choctawhatcheeana Prasad. Diatoms were found twice in the studied core above the white carbonate layers and were absent in other layers. The species living in the lake at present were observed down to the first white carbonate layer, including the predominant Cyclotella choctawhatcheeana. This fact presumably proves the consistency of the species composition of diatoms and the overall stable condition of the lake since 1946 (Rogozin et al., 2005). Down to the second white carbonate layer, the dominant species were Aulcosira valida (Grunow) Krammer and Aulcosira italica (Grunow) Simonsen. Nitzchia sigmodea (Nitzsch) W. Smith and Fragilaria construens var. venter (Ehrenberg) Grunow were also observed at these depths, dating approximately to 1655-1690. These are freshwater species that belong to the diatoms of arctic, alpine, and temperate latitudes, which develop in shallow waters under moderate temperature conditions. This fact suggests that Lake Shira was less salty in the middle and end of the 17th century than today.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vershinin K.E., Rogozin D.Y.
Заглавие : The 1300-year dynamics of vegetation cover in the Lake Shira depression (Khakassia, Siberia, Russia) reconstructed on the basis of bottom sediments
Место публикации : Dokl. Biol. Sci. - 2014. - Vol. 457, Is. 1. - С. 248-251. - ISSN 00124966 (ISSN) , DOI 10.1134/S0012496614040140
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Barkhatov, Yuri, Khromechek, Elena, Tolomeev, Alexander, Prokopkin, Igor
Заглавие : Cryptophyta Flagellates of Meromictic Lakes Shira and Shunet (Khakassia, Russia): Mechanisms of Vertical Distribution and Trophic Role
Колич.характеристики :3 с
Коллективы : Russian Foundation for Basic Research (RFBR) [13-04-01514], SiberianBranch of Russian Academy of Sciences [56]
Место публикации : Acta Geol. Sin.-Engl. Ed.: WILEY-BLACKWELL, 2014. - Vol. 88. - С. 50-52. - ISSN 1000-9515, DOI 10.1111/1755-6724.12266_4. - ISSN 1755-6724(eISSN)
Примечания : Cited References:9. - This work was supported by Russian Foundation for Basic Research (RFBR)No. 13-04-01514 and Integrative Project of Siberian Branch of RussianAcademy of Sciences No. 56.
Предметные рубрики: CHEMOCLINE
SIBERIA
SALINE
Ключевые слова (''Своб.индексиров.''): phytoflagellates--deep chlorophyll maxima--meromictic lake--simulation--modelling--lakeshira--lakeshunet
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bolobanschikova, Galina, Rogozin, Denis
Заглавие : Analysis of Diatoms of the Water Column and Bottom Sediments of Lake Shira (Khakassia, Russia)
Колич.характеристики :2 с
Место публикации : Acta Geol. Sin.-Engl. Ed.: WILEY-BLACKWELL, 2014. - Vol. 88. - С. 56-57. - ISSN 1000-9515, DOI 10.1111/1755-6724.12266_6. - ISSN 1755-6724(eISSN)
Примечания : Cited References:6
Ключевые слова (''Своб.индексиров.''): paleolimnology--meromictic lake--sedimentation--diatoms--cyclotella--choctawhatcheeana--aulacoseira valida--aulocoseira ambigua
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sushchik N.N., Kuchkina A.Y., Gladyshev M.I.
Заглавие : Fatty acid content and composition of sediments from Siberian eutrophic water bodies: Implications for biodiesel production
Место публикации : Water Research. - 2013. - Vol. 47, Is. 9. - С. 3192-3200. - ISSN 00431354 (ISSN) , DOI 10.1016/j.watres.2013.03.031
Ключевые слова (''Своб.индексиров.''): biodiesel--bottom sediments--fatty acids--fuel properties--inland water bodies--lipids--biological conditions--bottom sediments--environmental characteristic--freshwater reservoirs--fuel properties--inland waters--organic matter source--transformation process--biodiesel--eutrophication--fatty acids--feedstocks--fuels--lipids--reservoirs (water)--sedimentology--thermochemistry--sediments--biodiesel--fresh water--iodine--organic matter--biofuel--bottom water--combustion--eutrophic environment--eutrophication--fatty acid--lacustrine deposit--physicochemical property--reservoir--transformation--article--estuary--eutrophication--fatty acid analysis--lake--lipid composition--priority journal--sediment--khakassia--krasnoyarsk [krasnoyarsk (ads)]--krasnoyarsk [russian federation]--lake shira--russian federation
Аннотация: We studied lipids and fatty acids (FA) in bottom sediments from four Siberian water bodies, Bugach, Lesnoi and Krasnoyarsk freshwater reservoirs and brackish Shira lake, that differed in physico-chemical and biological conditions. We considered the potential of the bottom sediments as a feedstock for biodiesel production and estimated properties of the obtained biodiesel as a fuel on the basis of FA composition. Contents of lipids and FA in the sediments moderately varied and were generally close to the reported data from lacustrine and estuarine systems. We confirmed that long-term eutrophication of a water body resulted in the lipid-rich bottom sediments that make them a feedstock for biodiesel production. Each of the studied water bodies had specific FA composition of sediments likely due to different organic matter sources and transformation processes. Despite these differences in FA profiles, calculated key parameters (cetane number, iodine number and heat of combustion) of biodiesel produced from all the studied sediments met the limits established by current biodiesel standards. Thus, the variation in the sediment FA composition due to environmental characteristics of a water body likely has no principal significance for fuel properties of the obtained biodiesel. В© 2013 Elsevier Ltd.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kalugin I., Darin A., Rogozin D., Tretyakov G.
Заглавие : Seasonal and centennial cycles of carbonate mineralisation during the past 2500 years from varved sediment in Lake Shira, South Siberia
Место публикации : Quaternary International. - 2013. - Vol. 290-291. - С. 245-252. - ISSN 10406182 (ISSN) , DOI 10.1016/j.quaint.2012.09.016
Ключевые слова (''Своб.индексиров.''): biochemistry--carbonate--environmental factor--lacustrine deposit--mineralization--paleoenvironment--ph--salinity--sediment chemistry--temperature effect--varve--khakassia--lake shira--russian federation--siberia
Аннотация: Shira Lake is a good representative object for detail weather-climate modeling due to its local hydroclimatic information and annually laminated bottom sediments. Carbonate biochemical mineralization in Shira Lake shows not only seasonal but also centennial pulses over each 450-500 years. An age-depth model has been built by layer counting combined with 137Cs and 14C isotopic dates. Thermodynamic estimation of the rock-water multisystem in conformity with local conditions and source matter provides grounds for interpretation of measured geochemical parameters in sediments including environmental indicators such as temperature, salinity, and pH. Scanning X-ray fluorescence for sub-millimeter microstratigraphic study of varves connects geochemical oscillations of microelement content (Rb, Ti, Ca, Sr, Br, XRD) with seasonality, as well as revealing centennial pulses of environmental change. Quantitative environmental reconstruction using multiple regression for precipitation calibrated by hydrometeorological time series year by year was carried out for the lake over the last 2500 years. В© 2012 Elsevier Ltd and INQUA.
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