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Use of unmanned aerial vehicles for sensing microrelief during agrocenoses monitoring / A. P. Shevyrnogov, N. O. Malchikov, I. Y. Botvich [et al.] // CEUR Workshop Proceedings : CEUR-WS, 2019. - Vol. 2534: 2019 All-Russian Conference ""Spatial Data Processing for Monitoring of Natural and Anthropogenic Processes"", SDM 2019 (26 August 2019 through 30 August 2019, ) Conference code: 156641. - P485-490
Кл.слова (ненормированные):
Agriculture -- Barley -- Precision farming -- Spectrometry -- UAV -- Vegetation index -- Agriculture -- Antennas -- Data handling -- Spectrometry -- Unmanned aerial vehicles (UAV) -- Vegetation -- Agricultural land -- Barley -- Ground based -- Integral values -- Microrelief -- Precision farming -- Vegetation index -- Vegetation periods -- Monitoring
Аннотация: The use of UAVs for obtaining data on field microrelief within agricultural lands was demonstrated. The work relies on the NDVI integral values during the vegetation period obtained using satellite and ground-based spectrometry. It was established that a change in microrelief has a significant impact on the value of the NDVI integral and yield. The proposed approach can be used in precision farming for planning future agricultural work. Copyright © 2019 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shevyrnogov, A. P.; Malchikov, N. O.; Botvich, I. Y.; Yemelianov, D. V.; Larko, A. A.

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The Information Content of Spectral Vegetation Indices in the Interpretation of Satellite Images of Cultivated Fields / T. I. Pisman [et al.] // Biophysics. - 2019. - Vol. 64, Is. 4. - P588-592, DOI 10.1134/S0006350919040158 . - ISSN 0006-3509
Кл.слова (ненормированные):
bare fallows -- Keywords: sod fields -- NDSI -- NDVI -- Sentinel-2
Аннотация: Abstract—The results of satellite monitoring of vegetation on unused agricultural lands during the growing season of 2018 are presented. Sod fields of different ages (2, 7, and 20 years) and bare fallows on the land used by the Krasnoyarsk Research Institute of Agriculture were the objects of the study. Satellite data with high spatial resolution (Sentinel-2 Earth remote sensing satellites) at the pre-processing Level-1C (https://earthexplorer.usgs.gov/) were used for the interpretation of sod field and fallow images. These data were used to calculate the Normalized Difference Vegetation Index (NDVI) and the Normalized Difference Soil Index (NDSI). Algorithms and software for the processing of Sentinel-2 satellite data were developed. The possibility of using NDVI dynamics for assessment and monitoring of the condition of sod fields and bare fallows has been demonstrated. The applicability of the NDSI soil index for assessment of the status of arable land has been demonstrated. © 2019, Pleiades Publishing, Inc.

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, 50/50, Krasnoyarsk, 660036, Russian Federation
Agricultural Research Institute, Svobodnyi pr., 66, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Pisman, T. I.; Shevyrnogov, A. P.; Larko, A. A.; Botvich, I. Y.; Emelyanov, D. V.; Shpedt, A. A.; Trubnikov, Y. N.

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Estimation of the spatial distribution of spring barley yield using ground-based and satellite spectrophotometric data / A. P. Shevyrnogov [et al.] // IOP Conference Series: Earth and Environmental Science : Institute of Physics Publishing, 2019. - Vol. 315: International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies, AGRITECH 2019 (20 June 2019 through 22 June 2019, ) Conference code: 152072, Is. 3. - Ст. 032023, DOI 10.1088/1755-1315/315/3/032023
Кл.слова (ненормированные):
Biotechnology -- Environmental technology -- Photomapping -- Seed -- Crop development -- Field experience -- Optical characteristics -- Precision agriculture technology -- Resource-saving technologies -- Spatial resolution -- Spring barley yields -- Vegetation index -- Spatial distribution
Аннотация: The article presents a method for estimating the spatial distribution of spring barley yield, based on the use of optical ground and satellite spectral data (PlanetScope data with a spatial resolution of 3 meters). This approach is highly relevant for the development of precision agriculture technologies. Yield mapping is carried out on the basis of data on the spatial distribution of the actual yield and the spatial distribution of the spectral optical characteristics. The method's characteristic feature is the use of the integral values of vegetation indices (NDVI, MSAVI2, ClGreen) at various stages of crop development. The method was tested on the basis of stationary field experience, where traditional agriculture (deep plowing) is compared with resource-saving technologies (subsurface and surface plowing, and direct seeding with zero tillage). © 2019 IOP Publishing Ltd. All rights reserved.

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center, Krasnoyarsk Science Center, SB RAS, Krasnoyarsk, Akademgorodok, 660036, Russian Federation
Krasnoyarsk State Agrarian University, Krasnoyarsk, 660049, Russian Federation

Доп.точки доступа:
Shevyrnogov, A. P.; Yu Botvich, I.; Yemelianov, D. V.; Larko, A. A.; Ivchenko, V. K.; Demianenko, T. N.

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Identification of vegetation types and its boundaries using artificial neural networks / M. Saltykov, O. Yakubailik, S. Bartsev // INTERNATIONAL WORKSHOP ADVANCED TECHNOLOGIES IN MATERIAL SCIENCE, : IOP PUBLISHING LTD, 2019. - Vol. 537: International Workshop on Advanced Technologies in Material Science, (APR 04-06, 2019, Krasnoyarsk, RUSSIA). - Ст. 062001. - (IOP Conference Series-Materials Science and Engineering), DOI 10.1088/1757-899X/537/6/062001. - Cited References:8. - The reported study was funded by RFBR and the Russian Geographical Society according to the research project No 17-05-41012. . -

РУБ Engineering, Mechanical + Materials Science, Multidisciplinary

Аннотация: The applicability of artificial neural networks (ANN) for the identification of vegetation types using satellite multispectral imagery was studied. The study was focused on the three main vegetation types found in the south of the Krasnoyarsk Region: mixed forest, boreal forest and grassland. Sentinel-2 satellite images were used as a data source for the neural networks. It was shown that vegetation type can be identified pixel-by-pixel using 12 spectral channels and simple feed forward ANN with good quality and reliability. Analysis of the input layer of the trained neural networks allowed several spectral bands to be selected that were the most valuable for the ANN decision and not used in the classic NDVI vegetation index.

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Держатели документа:
RAS, Inst Biophys, SB, FRC KSC, Akademgorodok 50-50, Krasnoyarsk 660036, Russia.
RAS, Inst Computat Modeling, SB, FRC KSC, Akademgorodok 50-44, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Saltykov, M.; Yakubailik, O.; Bartsev, S.; Yakubailik, Oleg; RFBRRussian Foundation for Basic Research (RFBR); Russian Geographical Society [17-05-41012]

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Grape seed extract-soluplus dispersion and its antioxidant activity / R. Rajakumari, T. Volova, O. S. Oluwafemi [et al.] // Drug Dev. Ind. Pharm. - 2020. - P1-11, DOI 10.1080/03639045.2020.1788059 . - Article in press. - ISSN 0363-9045
Кл.слова (ненормированные):
antioxidant -- dispersion -- freeze-drying -- Grape seed extract -- proanthocyanidins -- soluplus
Аннотация: Objective: The main objective of this work was to formulate a nanodispersion containing grape seed extract and analyzed its release profile, antioxidant potential of the prepared formulations. Methods: The grape seed extract (GSE) containing proanthocyanidins (PC’s) has been dispersed in polymer matrix soluplus (SOLU) by the freeze-drying method. The morphological analysis was carried out using atomic force microscopy (AFM), scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). The in-vitro release of the nanodispersion formulations was evaluated by simulated intestinal fluid (SIF). The antioxidant activity of GSE and the formulation were evaluated by employing various in-vitro assays such as 2, 2’-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), 2, 2-diphenyl-1- picrylhydrazyl (DPPH), Ferric reducing antioxidant power (FRAP) and peroxidation inhibiting activity. Results: The formulation FIII (1:5) resulted in a stable formulation with a higher loading efficiency of 95.36%, a particle size of 69.90 nm, a polydispersity index of 0.154 and a zeta potential value of ?82.10 mV. The antioxidant efficiency of GSE-SOLU evaluated by DPPH was found to be 96.7%. The ABTS and FRAP model exhibited a dose-dependent scavenging activity. Linoleic model of FIII formulation and GSE exhibited a 66.14 and 86.58% inhibition respectively at 200 µg/l. Conclusions: The main reason for excellent scavenging activity of the formulations can be attributed to the presence of monomeric, dimeric, oligomeric procyanidins and the phenolic group. The present work denotes that GSE constitutes a good source of PC’s and will be useful in the prevention and treatment of free radical related diseases. © 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group.

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Держатели документа:
International and Inter-University Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, India
Institute of Biophysics, Siberian Federal University, Krasnoyarsk, Russian Federation
Department of Chemical Sciences, University of Johannesburg, Johannesburg, South Africa
Centre for Nanomaterials Sciences Research, University of Johannesburg, Johannesburg, South Africa
Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
School of Chemical Sciences, Mahatma Gandhi University, Kottayam, India
School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam, India

Доп.точки доступа:
Rajakumari, R.; Volova, T.; Oluwafemi, O. S.; Rajesh Kumar, S.; Thomas, S.; Kalarikkal, N.

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The effect of supplementation of the soil-like substrate with wheat straw mineralized to different degrees on wheat productivity in closed ecosystems / V. V. Velichko, A. A. Tikhomirov, S. A. Ushakova [et al.] // Life Sci. Space Res. - 2020. - Vol. 26. - P132-139, DOI 10.1016/j.lssr.2020.06.001 . - ISSN 2214-5524
Кл.слова (ненормированные):
Biological-technical human life support system -- Physicochemical mineralization of straw -- Soil-like substrate -- Wheat (Triticum aestivum L) -- hydrogen peroxide -- alternating current -- aqueous solution -- Article -- controlled study -- electric current -- evapotranspiration -- grain yield -- growing season -- harvest index -- irrigation (agriculture) -- macronutrient -- microclimate -- mineralization -- nitrogen concentration -- nutrient availability -- nutrient solution -- oxidation -- physical chemistry -- plant development -- plant growth -- priority journal -- sediment -- shoot -- soil like substrate -- soil treatment -- spikelet -- supernatant -- Triticum aestivum
Аннотация: Successful incorporation of soil-like substrate (SLS) into biotechnical life support systems is often complicated by the necessity to maintain the balance between flows of mineral elements taken up from the substrate by growing plants and mineral elements added to the SLS as components of mineralized plant inedible biomass. An imbalance between these two flows can be caused by the addition of recalcitrant plant waste such as wheat straw. The purpose of this study was to determine whether the availability of essential nutrients to be taken up by the roots of the wheat plants grown on the SLS could be enhanced by supplementing the SLS with the products derived from wheat straw subjected to different levels of physicochemical mineralization in the aqueous solution of hydrogen peroxide. Different degrees of straw mineralization were achieved by using different ratios of the aqueous solution of hydrogen peroxide to straw. The study showed that supplementation of the SLS with insufficiently oxidized products of physicochemical mineralization of straw resulted in a decrease in the grain yields. The inhibitory effect of the straw subjected to physicochemical oxidation increased with a decrease in the degree to which the straw had been oxidized. Only supplementation with the straw mineralized to the highest possible degree did not inhibit plant growth and development, and the crop yield in that treatment was higher than in the other treatments. © 2020

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Velichko, V. V.; Tikhomirov, A. A.; Ushakova, S. A.; Trifonov, S. V.; Gribovskaya, I. V.

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The use of satellite information (MODIS/Aqua) for phenological and classification analysis of plant communities / Y. Ivanova [et al.] // Forests. - 2019. - Vol. 10, Is. 7, DOI 10.3390/f10070561 . - ISSN 1999-4907
Кл.слова (ненормированные):
Boreal forests and ecosystems -- Classification of plant communities -- Linear discriminant analysis -- NDVI (normalized difference vegetation index) -- Discriminant analysis -- Radiometers -- Remote sensing -- Time series -- Vegetation -- Average air temperature -- Boreal forests -- Canonical correlations -- Classification analysis -- Linear discriminant analysis -- Normalized difference vegetation index -- Plant communities -- Satellite information -- Forestry
Аннотация: Vegetation indices derived from remote sensing measurements are commonly used to describe and monitor vegetation. However, the same plant community can have a different NDVI (normalized difference vegetation index) depending on weather conditions, and this complicates classification of plant communities. The present study develops methods of classifying the types of plant communities based on long-term NDVI data (MODIS/Aqua). The number of variables is reduced by introducing two integrated parameters of the NDVI seasonal series, facilitating classification of the meadow, steppe, and forest plant communities in Siberia using linear discriminant analysis. The quality of classification conducted by using the markers characterizing NDVI dynamics during 2003-2017 varies between 94% (forest and steppe) and 68% (meadow and forest). In addition to determining phenological markers, canonical correlations have been calculated between the time series of the proposed markers and the time series of monthly average air temperatures. Based on this, each pixel with a definite plant composition can be characterized by only four values of canonical correlation coefficients over the entire period analyzed. By using canonical correlations between NDVI and weather parameters and employing linear discriminant analysis, one can obtain a highly accurate classification of the study plant communities. © 2019 by the authors.

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Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50-50, Krasnoyarsk, 660036, Russian Federation
Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50, Krasnoyarsk, 660036, Russian Federation
Institute of Computational Modeling SB RAS, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50-44, Krasnoyarsk, 660036, Russian Federation
Sukachev Institute of Forest SB RAS, Federal Research Center 'Krasnoyarsk Science Center SB RAS', Academgorodok 50-28, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Ivanova, Y.; Kovalev, A.; Yakubailik, O.; Soukhovolsky, V.

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The Restoration Dynamics of Fallow Vegetation in the Steppe Zone of the Khakassia Republic Based on Terrain and Satellite Data / I. Y. Botvich, T. M. Zorkina // Biophysics. - 2019. - Vol. 64, Is. 2. - P309-315, DOI 10.1134/S0006350919020039 . - ISSN 0006-3509
Кл.слова (ненормированные):
fallow lands -- long-term variability (structure -- MODIS -- NDVI -- phytomass) -- projective cover -- restoration of natural vegetation -- satellite and terrain research methods
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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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Division of Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Cherepnin Herbarium, Astaf’ev Krasnoyarsk State Pedagogical University, Krasnoyarsk, 660049, Russian Federation

Доп.точки доступа:
Botvich, I. Y.; Zorkina, T. M.

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Assessment of the Quality of Bottom Sediments in the Middle Reaches of the Yenisei River by Allium test / T. A. Zotina [et al.] // Contemp. Probl. Ecol. - 2019. - Vol. 12, Is. 3. - P265-274, DOI 10.1134/S1995425519030120. - Cited References:35 . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
PLANT ELODEA-CANADENSIS
ANTHROPOGENIC CONTAMINATION
Кл.слова (ненормированные):
ana-telophase -- genotoxicity -- root length -- artificial sediments -- mitotic -- index -- toxicity
Аннотация: The harmful potential of bulk bottom sediments of the Yenisei River has been assessed by the Allium test. Sediment samples have been taken in ten sites on a plot of about 100 km in length in the middle reaches of the Yenisei River affected by urban activity of the city of Krasnoyarsk and industrial plants. The samples of sediments differ considerably in the content of potentially toxic substances (heavy metals, artificial radionuclides, and organic pollutants) and nutrients and in physical properties. We use the mean length of onion root as an indicator of general toxicity, the mitotic index as an indicator of cytotoxicity, and the percentage of anatelophase cells in the apical root meristem with abnormal chromosomes as an indicator of genotoxicity. Both the stimulation and inhibition of indicator endpoints are revealed in sediment samples of the Yenisei River relative to the control (artificial sediments). An increased genotoxicity is recorded in the sample of sediments contaminated by a mixture of organic and chemical toxicants. A significant positive correlation between the percentage of abnormal cells and the content of copper and petrochemicals in the samples is revealed. No extremely strong reactions of onion endpoints to the quality of sediment samples are revealed, which is probably related to relatively low contamination of the sediments studied. This is in agreement with the data of chemical analyses. Based on the testing results, we can conclude that the endpoints of the Allium test are sensitive enough to the quality of bottom sediments of the Yenisei River and can be used for their biotesting.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Fed Res Ctr, Inst Biophys,Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Zotina, T. A.; Trofimova, E. A.; Alexandrova, Yu. V.; Anishchenko, O. V.

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10.

Changes in athletes’ psycho-emotional stress in the course of annual macrocycle / M. A. Gamzin [et al.] // J. Siberian Fed. Univ. Humanit. Social Sci. - 2019. - Vol. 12, Is. 6. - P988-995, DOI 10.17516/1997–1370–0436 . - ISSN 1997-1370
Кл.слова (ненормированные):
Athletes -- Electroencephalography -- Psycho-emotional stress
Аннотация: Emotions significantly influence physiological processes in the athlete’s body. The level of his/ her mental stress during training, competitions and recreation is obviously not the same. Taking into account the athletes’ well-known predisposition to alexithymia, there is a need to search for objective ways of the level of psycho-emotional stress assessment. Using the calculated Stress Index (SI), based on electroencephalogram indicators and level of situational anxiety as per the standard Spielberger-Hanin test, our work assesses and compares the differences in the athletes’ psycho-emotional state in various phases of the annual macrocycle. The study involved 155 athletes doing various sports. 96 athletes were males, their average age being 24.34 ± 3.54 years; 59 athletes were females with the average age of 23.12 ± 2.3 years. The control group consisted of 101 individuals who did not experience systematic high physical exertion, 53 of them being males with the average age of 23.17 ± 2.54, 48 — females with the average age of 22.12 ± 3.01 years. The athletes’ SI values are significantly different from those in the control group, as well as among themselves at various stages of the annual macrocycle. In the preparatory and transitional periods, the SI is significantly lower than in the control group. However, during the competitive period this index increases considerably. This is characteristic of a significant increase in the athletes’ psycho-emotional stress. There is a high positive correlation (r = 0.81) between the SI value and the number of points scored in the Spielberger-Hanin situational anxiety test. © Siberian Federal University. All rights reserved.

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Держатели документа:
Academy Fight behalf D.G. Mindiashvili, 88 Markovskogo Str., Krasnoyarsk, 660049, Russian Federation
Institute of Biophysics SB RAS, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Research Institute for Medical Problems, North, 3g Partizana Zheleznyaka Str, Krasnoyarsk, 660022, Russian Federation
Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041, Russian Federation
Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarsky Rabochy, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Gamzin, M. A.; Bazarin, K. P.; Savchenko, A. A.; Kakukhin, A. D.

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11.

The fluorescence method for determining of photosynthetic apparatus reactivity in plant leaves / T. V. Nesterenko, V. N. Shikhov, A. A. Tikhomirov // Zhurnal Obshchei Biol. - 2019. - Vol. 80, Is. 3. - С. 187-199, DOI 10.1134/S0044459619030060. - Cited References:31 . - ISSN 0044-4596

РУБ Biology
Рубрики:
ELECTRIC-POTENTIAL DIFFERENCE
FREQUENTLY ASKED QUESTIONS
CHLOROPHYLL
Аннотация: Presently, the most promising way of studying, forecasting, and enhancing of organisms' tolerance to harsh environmental impacts is considered to be the estimation of initial functional state of an organism's regulatory systems. To resolve the problem of photosynthetic apparatus (PSA) tolerance to harsh impacts at the level of such a complicated functional system as a plant leaf, it is necessary to assess integral responses of the leaf's PSA to the impact. At that, simple and versatile traits may have certain advantages. At present, chlorophyll fluorescence seems to be one of the main indices of PSA activity, which can be measured relatively fast and easy. One of the possible approaches to operational integrative assessment of PSA activity may consist in usage of the parameters introduced for the curves of chlorophyll fluorescence induction (CFI) slow phase. Temporal patterns of CFI are of special interest. The simplest index T-0.5 (i.e., half-time of chlorophyll fluorescence intensity decrease during the slow phase of CFI) appears to be an integral characteristic of activation rate with regard to a number of photo-assimilation and photo-protective processes in leaves. On basis of the studies, conducted earlier, and published data, we have analyzed the behavior of T-0.5 parameter with comparison to other CFI traits (namely: qN - non-photochemical quenching coefficient, ETR - electron transport rate, Phi(PSII) - effective quantum yield of PSII photochemistry, F-p/F-T ratio) under different conditions. The influence of leaf senescence, changes in intensity of excitation light, slight dehydration of plants and their recovery from water deficiency have been examined. The pattern of T-0.5 behavior, observed in laboratory experiments, and the results of its comparison with other indices of CFI give occasion to propose the usage of T-0.5 for indirect estimation of PSA activity when operational integrative monitoring of PSA state is required. Further studies are necessary for establishing quantitative relationships between PSA activity and fluorescence parameter T-0.5 under specific stress conditions.

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Держатели документа:
RAS, Siberian Branch, Inst Biophys, Acad Gorodok 50-50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Nesterenko, T. V.; Shikhov, V. N.; Tikhomirov, A. A.

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12.

Identification of vegetation types and its boundaries using artificial neural networks / M. Saltykov, O. Yakubailik, S. Bartsev // IOP Conference Series: Materials Science and Engineering : Institute of Physics Publishing, 2019. - Vol. 537: International Workshop on Advanced Technologies in Material Science, Mechanical and Automation Engineering - MIP: Engineering-2019 (4 April 2019 through 6 April 2019, ) Conference code: 149243, Is. 6, DOI 10.1088/1757-899X/537/6/062001
Кл.слова (ненормированные):
Forestry -- Pixels -- Satellite imagery -- Vegetation -- Boreal forests -- Mixed forests -- Multi-spectral imagery -- Satellite images -- Spectral channels -- Trained neural networks -- Vegetation index -- Vegetation type -- Multilayer neural networks
Аннотация: The applicability of artificial neural networks (ANN) for the identification of vegetation types using satellite multispectral imagery was studied. The study was focused on the three main vegetation types found in the south of the Krasnoyarsk Region: mixed forest, boreal forest and grassland. Sentinel-2 satellite images were used as a data source for the neural networks. It was shown that vegetation type can be identified pixel-by-pixel using 12 spectral channels and simple feed forward ANN with good quality and reliability. Analysis of the input layer of the trained neural networks allowed several spectral bands to be selected that were the most valuable for the ANN decision and not used in the classic NDVI vegetation index. © 2019 IOP Publishing Ltd. All rights reserved.

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Держатели документа:
Institute of Biophysics, FRC KSC SB RAS, Akademgorodok 50/50, Krasnoyarsk, 660036, Russian Federation
Institute of Computation Modeling, FRC KSC SB RAS, Akademgorodok 50/44, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Saltykov, M.; Yakubailik, O.; Bartsev, S.

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13.

Long-Term Dynamics of NDVI-Vegetation for Different Classes of Tundra Depending on the Temperature and Precipitation / A. G. Degermendzhi, G. S. Vysotskaya, L. A. Somova [et al.] // Dokl. Earth Sci. - 2020. - Vol. 493, Is. 2. - P658-660, DOI 10.1134/S1028334X20080048. - Cited References:10 . - ISSN 1028-334X. - ISSN 1531-8354

РУБ Geosciences, Multidisciplinary

Кл.слова (ненормированные):
tundra -- Holdridge -- vegetation -- biotemperature -- precipitation -- NDVI
Аннотация: The tundra was divided into different classes depending on the temperature and precipitation in accordance with the Holdridge classification. Dry, moist, wet, and rainy tundras were distinguished. Datasets on climate variability were obtained from the Climatic Research Unit website () for the period from 2001 to 2017. The long-term (2001-2016) dynamics of phytomass for different tundra classes was studied on the basis of the Normalized Differential Vegetation Index (NDVI). The positive long-term dynamics of NDVI-vegetation for the tundra classes studied was revealed. This trend correlates with the positive dynamics of the mean annual biotemperature. It was shown that the impact of global climate change on vegetation of different tundra classes is ambiguous. For the dry tundra, the increase in NDVI in May and June was higher than for the rainy tundra. This correlates with the fact that the increase in the mean monthly temperatures in May and June on the territory of the dry tundra is greater than on the territory of the rainy tundra.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Degermendzhi, A. G.; Vysotskaya, G. S.; Somova, L. A.; Pisman, T. I.; Shevyrnogov, A. P.

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14.

Zoobenthos of Lake Pyasino and the Rivers Flowing into It after the Diesel Spill of 2020 / S. P. Shulepina, O. P. Dubovskaya, L. A. Glushchenko // Contemp. Probl. Ecol. - 2021. - Vol. 14, Is. 4. - P391-398, DOI 10.1134/S1995425521040077. - Cited References:32. - This work was supported by the Siberian Branch, Russian Academy of Sciences, contract no. 223-EP-2020/07. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
CRUDE-OIL SPILL
Кл.слова (ненормированные):
zoobenthos -- species composition -- abundance -- biomass -- production -- fish -- productivity -- oil spills -- water quality
Аннотация: The species composition and quantitative characteristics of the zoobenthos in Lake Pyasino and rivers flowing into it after a diesel spill have been analyzed. The production of zoobenthos and potential production of benthivorous fish in Lake Pyasino have been calculated. A small number of zoobenthos species and low values of abundance and biomass are revealed. In the Bezymyanny Stream, the mouth of the Daldykan River, and the Ambarnaya River, oligochaetes Limnodrilus hoffmeisteri Claparede and Tubifex tubifex (O. F. Muller) dominate in the zoobenthos abundance and biomass. In Lake Pyasino and the Pyasina River outflow, larvae of caddis flies, chironomids, stoneflies, and amphipods prevail. In the area of the deepwater silted station of Lake Pyasino, oligochaetes L.hoffmeisteri develop, the proportion of which in the benthic fauna at this station (40 and 79% of the total biomass and abundance, respectively) is maximal. The amphipod Monoporeia affinis (Lindstrom) dominates in terms of biomass at this station. A decrease in the chironomid diversity, an increase in the proportion of polysaprobic oligochaetes, and lower values of the Shannon index in Lake Pyasino in 2020 when compared to 1992 are found. The low abundance (2181 +/- 2048 ind./m(2)) and biomass (2.01 +/- 1.85 g/m(2)) of zoobenthos in the lake results in low values of zoobenthos production and the potential production of benthivorous fish (3 kg/ha per season). Based on the state of zoobenthos, an improvement in water quality has been observed from river sections exposed to the oil spill to the lake and the source of the River Pyasina.

WOS
Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys,Fed Res Ctr, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Shulepina, S. P.; Dubovskaya, O. P.; Glushchenko, L. A.; Siberian Branch, Russian Academy of SciencesRussian Academy of Sciences [223-EP-2020/07]

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15.

Zooplankton of Lake Pyasino and the Rivers Flowing into It after the Diesel Spill in 2020 / O. P. Dubovskaya, O. E. Yolgina, I. I. Morozova // Contemp. Probl. Ecol. - 2021. - Vol. 14, Is. 4. - P380-390, DOI 10.1134/S199542552104003X. - Cited References:35. - This work was supported by economic agreement no. 223-EP-2020/07 with the Siberian Branch of the Russian Academy of Sciences. . - ISSN 1995-4255. - ISSN 1995-4263

РУБ Ecology
Рубрики:
NONPREDATORY MORTALITY
   OIL-SPILLS
   RECORDS
   BASIN
   STATE
Кл.слова (ненормированные):
zooplankton -- Lake Pyasino -- species composition -- abundance -- biomass -- production -- fish productivity -- oil spills -- water quality
Аннотация: At the beginning of August, 2 months after 20 000 t of diesel fuel spilled into the Bezymyanny Stream (which took it out to the Daldykan and Ambarnaya rivers), the large Norilsk expedition of the Siberian Branch, Russian Academy of Sciences, sampled net zooplankton at 13 stations located in both sections of these rivers and Lake Pyasino with the Pyasina River outflowing from it. A comparative analysis of the species composition, abundance, biomass, and saprobity index of zooplankton at these stations has been carried out. The productions of rotifer and crustacean zooplankton and potential production of planktivorous fish in Lake Pyasino have been calculated. Based on the state of zooplankton, a gradual improvement in water quality has been observed from river areas exposed to the oil products to the northern part of the lake and the River Pyasina outflow. The low abundance and biomass of zooplankton in the lake (43 800 +/- 17 550 ind./m(3), 112.8 +/- 26.2 mg/m(3), on average) due to the dominance of rotifers (Ploesoma truncatum (Levander), Bipalpus hudsoni (Imhof), and Conochilus unicornis Rousselet) resulted in low values of zooplankton production and the potential production of planktivorous fish (0.85 kg/ha per season).

WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Dubovskaya, O. P.; Yolgina, O. E.; Morozova, I. I.; Siberian Branch of the Russian Academy of SciencesRussian Academy of Sciences [223-EP-2020/07]

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16.

A study of seasonal dynamics of herbaceous plant communities in Khakassia using ground-based and satellite data / A. P. Shevyrnogov, N. A. Kononova, A. I. Volkova [et al.] // 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
Кл.слова (ненормированные):
Biotechnology -- Productivity -- Surface waters -- Vegetation -- Grass canopies -- Herbaceous plants -- Land surface water index -- Normalized difference vegetation index -- Satellite data -- Seasonal dynamics -- Species composition -- Steppe vegetation -- Satellites
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.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Katanov Khakass State University, 90 Lenina, Abakan, 655017, Russian Federation

Доп.точки доступа:
Shevyrnogov, A. P.; Kononova, N. A.; Volkova, A. I.; Botvich, I. Y.; Pisman, T. I.

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17.

Information Content of Spectral Vegetation Indices for Assessing the Weed Infestation of Crops Using Ground-Based and Satellite Data / T. I. Pisman, M. G. Erunova, I. Y. Botvich [et al.] // Izv. Atmos. Ocean. Phys. - 2021. - Vol. 57, Is. 9. - P1188-1197, DOI 10.1134/S0001433821090577. - Cited References:32 . - ISSN 0001-4338. - ISSN 1555-628X

РУБ Meteorology & Atmospheric Sciences + Oceanography
Рубрики:
DIFFERENTIATION
REFLECTANCE
Кл.слова (ненормированные):
vegetation indices -- PlanetScope -- ground-based spectrometry -- geobotanical -- studies -- wheat crops -- Krasnoyarsk krai
Аннотация: This paper presents the results of a study assessing the degree of weed infestation of wheat crops. They are obtained using optical ground-based and satellite spectral data with a 3-m spatial resolution from PlanetScope Dove satellites for 2019. The vegetation indices, including the normalized difference vegetation index (NDVI), the relative chlorophyll index (Chlorophyll Index Green-ClGreen or GCI), the modified soil-adjusted vegetation index (MSAVI2), and the visible atmospherically resistant index (VARI) are used in the interpretation of ground-based spectrometric and space images. This paper indicates the possibility of assessing the degree of weed infestation of agricultural fields. The higher the weed infestation, the lower the index values. The dynamics of VARI is found to be different from the dynamics of NDVI, ClGreen, and MSAVI2 during the growing season. The strong correlation between NDVI, ClGreen, and MSAVI2 and the weak correlation between VARI and other indices are observed. The possibility of identifying weedy sites in the agricultural fields is shown using the spatial distribution map of ClGreen dated August 2, 2019.

WOS
Держатели документа:
Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk, Russia.
Russian Acad Sci, Fed Res Ctr, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.
Russian Acad Sci, Fed Res Ctr, Krasnoyarsk Sci Res Inst Agr, Siberian Branch,Krasnoyarsk Sci Ctr, Krasnoyarsk, Russia.

Доп.точки доступа:
Pisman, T., I; Erunova, M. G.; Botvich, I. Yu; Emelyanov, D., V; Kononova, N. A.; Bobrovsky, A., V; Kryuchkov, A. A.; Shpedt, A. A.; Shevyrnogov, A. P.

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18.

Indicators of chemiluminescent and bioluminescent tests of biological liquids in the assessment of physical health / S. N. Derevtsova, A. A. Romanenko, O. A. Kolenchukova [и др.] // Klin. Lab. Diagn. - 2020. - Vol. 65, Is. 9. - С. 541-546, DOI 10.18821/0869-2084-2020-65-8-541-546 . - ISSN 0869-2084
Кл.слова (ненормированные):
Adolescent -- Bioluminescence -- Blood -- Chemiluminescence -- Saliva -- Sexual dimorphism
Аннотация: The study includes anthropometry of 172 young male, obtained data on the length and body mass, measured the transverse diameters of the shoulders and pelvis, various body types was identified by the J.M. Tanner sexual dimorphism index (andromorphic, mesomorphic, gynecomorphic). The chemiluminescent and bioluminescent study of saliva and blood was conducted in the examined young male. We studied the indicators of the antioxidant defense system under the influence of stress. The antioxidant status of saliva was determined using the H2 O2-luminol-dependent chemiluminescence method. Data on the activity of NAD (P)-dependent dehydrogenases in blood lymphocytes was obtained from a bioluminescent method of research. Young male of andromorphic body type had large overall and transverse body sizes. Indicators of antioxidant protection of saliva and blood in men of adolescence, the body type of the sexual dimorphism index J.M. Tanner was different. The persons of the andromorphic body type differed in terms of chemiluminescence in comparison with the young male of gynecomorphic body type. The results of bioluminescent blood tests suggest a violation of the catabolic and anabolic processes of carbohydrate and fat metabolism in young men of mesomorphic and gynecomorphic body types. Indicators of the system of antioxidant protection of saliva and blood reflect the sexual characteristics of the body of young male and can be used as additional criteria for diagnosing sex inversion and assessing the risk of developing socially attributed diseases. © 2020, Klinichescheskaya Laboratornaya Diagnostika. All rights reserved.

Scopus
Держатели документа:
Professor V. F. Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk, 660022, Russian Federation
Federal State Budgetary Scientific Institution “Federal Research Center” Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences “a separate division of the Research Institute of Medical Problems of the North, Krasnoyarsk, 660122, Russian Federation
Federal State Autonomous Educational Institution of Higher Education «Siberian Federal University», Krasnoyarsk, 660041, Russian Federation
Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences-a separate division of the Federal State Budget Scientific Institution Federal Research Center «Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences», Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Derevtsova, S. N.; Romanenko, A. A.; Kolenchukova, O. A.; Stepanova, L. V.; Nikolaev, V. G.; Sindeeva, L. V.; Kratasyuk, V. A.; Medvedevа, N. N.

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19.

The use of the data derived from the PlanetScope satellite and unmanned aerial vehicles to estimate crop yield as dependent on the amount of nitrogen fertilizer applied / N. O. Malchikov, T. I. Pisman, I. Y. Botvich [et al.] // IOP Conference Series: Earth and Environmental Science : IOP Publishing Ltd, 2021. - Vol. 839: 5th International Scientific Conference on Agribusiness, Environmental Engineering and Biotechnologies, AGRITECH-V 2021 (16 June 2021 through 19 June 2021, ) Conference code: 172484, Is. 2. - Ст. 022004, DOI 10.1088/1755-1315/839/2/022004
Аннотация: The purpose of the present study is to show the usefulness of the satellite data and the data derived from unmanned aerial vehicles (UAVs) for estimating the relationship between cereal grain crop yield and the amount of nitrogen fertilizer applied. The study was conducted on the land of the Kuraginskoye Research Farm. The study material was spring barley cv. Biom. Three test plots were studied; mineral fertilizer, urea, was used in different quantities for foliar application in June; applications were performed at equal intervals. Multispectral images were based on PlanetScope satellite data, with the 3 m spatial resolution, and the data derived from the DJI Phantom 4 Multispectral UAV, with the 10 cm resolution. The satellite and UAV data were used to calculate spectral vegetation index (NDVI) (Normalized Difference Vegetation Index). A high correlation was obtained between the NDVI values calculated using satellite data and UAV data. The satellite data provided the basis for assessing barley crop yield as dependent on the amount of foliar-applied urea during the growing season. Maps of the spatial distribution of barley NDVI were constructed using the Phantom UAV data; they showed that the third foliar application of the fertilizer was not economically justified. © Published under licence by IOP Publishing Ltd.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Kuragino RF, FRC KSC SB RAS, Kuragino, Krasnoyarsk Krai, Russian Federation

Доп.точки доступа:
Malchikov, N. O.; Pisman, T. I.; Botvich, I. Y.; Emelyanov, D. V.; Vagner, V. V.; Shevyrnogov, A. P.

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20.

Modeling the radial stem growth of the pine (Pinus sylvestris l.) forests using the satellite-derived ndvi and lst (modis/aqua) data / Y. Ivanova, A. Kovalev, V. Soukhovolsky // Atmosphere. - 2021. - Vol. 12, Is. 1. - Ст. 12. - P1-15, DOI 10.3390/atmos12010012 . - ISSN 2073-4433
Кл.слова (ненормированные):
Boreal forests -- Field measurements -- Modeling studies of forest -- Remote sensing data analysis -- Tree and forest functioning -- Tree ring width -- Land surface temperature -- Radiometers -- Satellites -- Time series analysis -- Developed model -- Growing season -- Measurements of -- Normalized difference vegetation index -- Parabolic approximation -- Pinus sylvestris -- Principal Components -- Tree-ring width -- Forestry -- Aqua (satellite) -- boreal forest -- coniferous tree -- growth rate -- land surface -- modeling -- MODIS -- NDVI -- phytomass -- principal component analysis -- remote sensing -- satellite data -- surface temperature -- tree ring -- Pinus sylvestris
Аннотация: The paper considers a new approach to modeling the relationship between the increase in woody phytomass in the pine forest and satellite-derived Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) (MODIS/AQUA) data. The developed model combines the phenological and forest growth processes. For the analysis, NDVI and LST (MODIS) satellite data were used together with the measurements of tree-ring widths (TRW). NDVI data contain features of each growing season. The models include parameters of parabolic approximation of NDVI and LST time series transformed using principal component analysis. The study shows that the current rate of TRW is determined by the total values of principal components of the satellite indices over the season and the rate of tree increment in the preceding year. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.

Scopus
Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Sukachev Institute of Forest SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Ivanova, Y.; Kovalev, A.; Soukhovolsky, V.

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