Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / L. M. Parham [et al.] // Biogeochemistry. - 2013. - Vol. 116, Is. 01.03.2014. - P55-68, DOI 10.1007/s10533-013-9922-5. - Cited References: 33. - This work was supported by joint US-Russia program between the RFBR and CRDF through Grants 10-05-92513 and RUG1-2980-KR-10, ANR, GDRI "CAR WET SIB", Grants RFBR-CNRS 08-04-92495 and BIO-GEO-CLIM of MinObrNauki and BIO-GEO-CLIM of Russian Ministry of Science and Education (14.B25.31.0001). . - 14. - ISSN 0168-2563РУБ Environmental Sciences + Geosciences, Multidisciplinary

Аннотация: Stream chemistry in permafrost regions is regulated by a variety of drivers that affect hydrologic flowpaths and watershed carbon and nutrient dynamics. Here we examine the extent to which seasonal dynamics of soil active layer thickness and wildfires regulate solute concentration in streams of the continuous permafrost region of the Central Siberian Plateau. Samples were collected from 2006 to 2012 during the frost-free season (May-September) from sixteen watersheds with fire histories ranging from 3 to 120 years. The influence of permafrost was evident through significantly higher dissolved organic carbon (DOC) concentrations in the spring, when only the organic soil horizon was accessible to runoff. As the active layer deepened through the growing season, water was routed deeper through the underlying mineral horizon where DOC underwent adsorption and concentrations decreased. In contrast, mean concentrations of major cations (Ca2+ > Na+ > Mg2+ > K+) were significantly higher in the summer, when contact with mineral horizons in the active zone provided a source of cations. Wildfire caused significantly lower concentrations of DOC in more recently burned watersheds, due to removal of a source of DOC through combustion of the organic layer. An opposite trend was observed for dissolved inorganic carbon and major cations in more recently burned watersheds. There was also indication of talik presence in three of the larger watersheds evidenced by Cl- concentrations that were ten times higher than those of other watersheds. Because climate change affects both fire recurrence intervals as well as rates of permafrost degradation, delineating their combined effects on solute concentration allows forecasting of the evolution of biogeochemical cycles in this region in the future.

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Держатели документа:
[Parham, Lucy M.
McDowell, William H.] Univ New Hampshire, Dept Nat Resources & Environm, Coll Life Sci & Agr, Durham, NH 03824 USA
[Prokushkin, Anatoly S.
Titov, Sergey V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Pokrovsky, Oleg. S.] Univ Toulouse, CNRS IRD OMP, Geosci Environm Toulouse, F-31400 Toulouse, France
[Grekova, Ekaterina] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Shirokova, Liudmila S.] UroRAS, Inst Ecol Problems North, Arkhangelsk, Russia

Доп.точки доступа:
Parham, L.M.; Prokushkin, A.S.; Pokrovsky, O.S.; Titov, S.V.; Grekova, E...; Shirokova, L.S.; McDowell, W.H.; RFBR; CRDF [10-05-92513, RUG1-2980-KR-10]; ANR; GDRI "CAR WET SIB"; MinObrNauki [RFBR-CNRS 08-04-92495, BIO-GEO-CLIM]; BIO-GEO-CLIM of Russian Ministry of Science and Education [14.B25.31.0001]

/ S. G. Ovchinnikov [et al.] // JETP Letters. - 2012. - Vol. 96, Is. 2. - P129-132, DOI 10.1134/S002136401214010X . - ISSN 0021-3640
Аннотация: We predict the insulator-metal-insulator transitions for the temperature and pressure of the lower mantle with the metal layer thickness Δh ≈ 400 km at the depth of 1400-1800 km. The insulator-metal transition has the Mott-Hubbard origin, while the second transition from metal to insulator results from spin crossover of the Fe 2+ ions from high spin S = 2 to low spin S = 0 state. The conductivity in the metal layer may attain 250 S/m. The depth profile of the conductivity is also suggested. © 2012 Pleiades Publishing, Ltd.

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Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk 660041, Russian Federation
Sukhachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Trofimuk Institute of Petroleum-Gas Geology and Geophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences, Novosibirsk 630090, Russian Federation

Доп.точки доступа:
Ovchinnikov, S.G.; Ovchinnikova, T.M.; Dyad'kov, P.G.; Plotkin, V.V.; Litasov, K.D.

/ R. R. Khaydarov [et al.] // NATO Science for Peace and Security Series A: Chemistry and Biology. - 2011. - P169-177, DOI 10.1007/978-94-007-0217-2-18 . -
Аннотация: Antimicrobial and antifungal properties of silver nanoparticles, silver ions, acrylate paint and cotton fabric impregnated with Ag nanoparticles were assessed against Escherichia coli (Gram-negative bacterium); Staphylococcus aureus and Bacillus subtilis (Gram-positive bacteria); Aspergillus niger, Aureobasidium pullulans and Penicillium phoeniceum (cosmopolitan saprotrophic fungi). The silver ions used in the bacterial susceptibility tests were released from pure silver electrodes using a 12 V battery-operated direct current generator. The water-based silver colloidal solution was obtained by electroreduction of silver ions in water. Nanosilver was less effective against E. coli, S. aureus, B. subtilis and P. phoeniceum compared to silver ions. However silver nanoparticles have prolonged bactericidal effect as a result of continuous release of Ag ions in sufficient concentration and thus nanoparticles can be more suitable in some bactericidal applications. The synthesized silver nanoparticles added to water paints or cotton fabrics have demonstrated a pronounced antibacterial and antifungal effect. В© 2011 Springer Science+Business Media B.V.

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Держатели документа:
Institute of Nuclear Physics, Tashkent, Uzbekistan
V.N. Sukachev Institute of Forestry, SB RAS, Krasnoyarsk, Russian Federation
Department of Materials Engineering, ARC Centre of Excellence for Design in Light Metals, Monash University, Clayton, VIC, Australia

Доп.точки доступа:
Khaydarov, R.R.; Khaydarov, R.A.; Evgrafova, S.; Estrin, Y.

[] / R. R. Khaydarov [et al.] // Silver Nanoparticles: Prop., Charact. and Appl. - 2011. - P328-339 . -
Аннотация: The minimum inhibitory concentrations (MICs) assays conducted for E. coli, S. aureus, B. subtilis and P. phoeniceum have shown that the antimicrobial activity of silver ions was superior to that of silver nanoparticles. As silver nanoparticles can be more suitable in some bactericidal applications than silver ions, the efficacy of nanosilver as an antimicrobial agent against a range of microbes on the surface of water paints and cotton fabrics has been studied. The cytotoxicity of silver nanoparticles has been studied using NIH-3T3, HEP-G2, A-549, PC-12, and Colo-320 cells via the MTT ((3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium-bromid) test. The MTT test results obtained have shown that silver nanoparticles in concentrations of ~1-10 ppm entering the body from air or liquid suspensions can present a potential risk to human health. However, silver nanoparticles as a commercially viable addition to be used in paint and textile industry are unlikely to present a direct health risk. © 2010 Nova Science Publishers, Inc. All rights reserved.

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Держатели документа:
Institute of Nuclear Physics, Tashkent, Uzbekistan
Department of Materials Engineering, CSIRO Division of Process Science and Engineering, Monash University, Clayton, VIC, Australia
V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Dept. of Environmental Engineering, Yonsei University, Wonju, South Korea
Institute of Technical Chemistry, Gottfried-Wilhelm-Leibniz University, Germany

Доп.точки доступа:
Khaydarov, R.R.; Khaydarov, R.A.; Estrin, Y.; Evgrafova, S.; Cho, S.Y.; Wagner, S.

/ K. A. Lobach, S. G. Ovchinnikov, T. M. Ovchinnikova // J. Exp. Theor. Phys. - 2015. - Vol. 120, Is. 1. - P132-138, DOI 10.1134/S1063776115010045 . - ISSN 1063-7761
Аннотация: For Mott insulators with tetrahedral environment, the effective Hubbard parameter Ueff is obtained as a function of pressure. This function is not universal. For crystals with d5 configuration, the spin crossover suppresses electron correlations, while for d4 configurations, the parameter Ueff increases after a spin crossover. For d2 and d7 configurations, Ueff increases with pressure in the high-spin (HS) state and is saturated after the spin crossover. Characteristic features of the insulator-metal transition are considered as pressure increases; it is shown that there may exist cascades of several transitions for various configurations.

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Держатели документа:
Siberian Federal UniversityKrasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of SciencesAkademgorodok, Krasnoyarsk, Russian Federation
Sukachev Institute of Forest, Siberian Branch, Russian Academy of SciencesAkademgorodok, Krasnoyarsk, Russian Federation
ИФ СО РАН
ИЛ СО РАН

Доп.точки доступа:
Lobach, K.A.; Ovchinnikov, S.G.; Ovchinnikova, T.M.

/ C. -H. Cheng [et al.] // Geoderma. - 2016. - Vol. 265. - P187-195, DOI 10.1016/j.geoderma.2015.11.028 . - ISSN 0016-7061
Аннотация: Steep mountain terrain, fractured geological environments, and intense precipitation events are primary factors that contribute to frequent landslides in mountainous regions. Landslides exert an immense impact on forest ecosystems and substantially change soil properties; understanding these changes is crucial to facilitating subsequent forest revegetation and management. In this study, the effects of landslide on soil physicochemical properties were investigated in a moist montane forest ecosystem in Xitou, Central Taiwan. We established a dataset comprised historical soil survey data obtained in 1976 and data from soil samples taken in 2012 at the same locations to compare differences in soil properties after landslide deposition, and also conducted soil sampling along a landslide/nonlandslide affected sequence to determine how the degree of landslide deposition affected soil physicochemical properties. The results indicated that rock fragment content, soil pH value, bulk density, inorganic carbon, and base saturation increased following landslide deposition and that severe landslide deposition caused more substantial increases. By contrast, the thicknesses of the O and A horizons, soil organic carbon, total nitrogen, and cation-exchange capacity significantly decreased following landslides; these decreases were more substantial with increasing degree of landslide deposition. Exchangeable potassium, calcium, magnesium, and available phosphorus content, however, were unaffected by landslide deposition. The results demonstrated that soil physicochemical properties were significantly altered after landslide deposition; these resultant changes, particularly in regard to high soil pH value, poor structure, and low soil organic carbon and total nitrogen, are expected to influence functions in forest ecosystems. © 2015 Elsevier B.V.

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Держатели документа:
School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
NTU Experimental Forest, National Taiwan University, Nantou, Taiwan
Institute of Forest SR RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Cheng, C.-H.; Hsiao, S.-C.; Huang, Y.-S.; Hung, C.-Y.; Pai, C.-W.; Chen, C.-P.; Menyailo, O. V.
Свободных экз. нет

/ R. R. Kolosov, A. S. Prokushkin, O. S. Pokrovsky // IOP Conference Series: Earth and Environmental Science : Institute of Physics Publishing, 2016. - Vol. 48: 9th International Conference and Early Career Scientists School on Environmental Observations, Modelling and Information Systems, ENVIROMIS 2016 (11 July 2016 through 16 July 2016, ) Conference code: 125703, Is. 1, DOI 10.1088/1755-1315/48/1/012018 . -
Аннотация: The subarctic rivers of the Central Siberian Plateau have specific fed-characteristics due to the permafrost distribution and the active layer thawing dynamics. Two watersheds with different types of permafrost (from insular to continuous) are studied. Different data sources (Roshydromet and our own observations) are used for receiving anions' (HCO3-, SO4 2-, Cl-) and cations' (Ca2+, Mg2+) fluxes from the Nizhnyaya Tunguska river (1960-2011) and the Tembenchi river (1970-2011). The annual discharge of N. Tunguska for 1939-2011 is characterized by an increase of 0.3 km3/year/year, and for Tembenchi, 0.04 km3/year/year. The major part of the increase (about 60%) is due to spring flooding (May - June). The volume-weighted mean concentrations of major anions and cations in the N. Tunguska river water increased three times in the spring period (40.7 - 116.8 mg/l) and in the summer-fall period (74-212.9 mg/l). On the contrary, such concentrations decreased sharply during the winter mean water period. Due to these results, the total export of main anions and cations from the N. Tunguska river basin rose more than 4,5 times. Two possible reasons can be identified: 1) a water discharge increase of the Subarctic rivers (Peterson et al., 2002); 2) permafrost degradation induced by global climate warming (Frey and McClelland 2009). © Published under licence by IOP Publishing Ltd.

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Держатели документа:
V N Sukachev Institute of Forest, SB RAS, Akademgorodok 50/28, Krasnoyarsk, Russian Federation
Tomsk State University, 36 Lenin Ave., Tomsk, Russian Federation

Доп.точки доступа:
Kolosov, R. R.; Prokushkin, A. S.; Pokrovsky, O. S.

/ F. Pourpoint [et al.] // Chem. Geol. - 2017. - Vol. 452. - P1-8, DOI 10.1016/j.chemgeo.2017.02.004. - Cited References:60. - The Lille group is grateful for funding by the Region Nord/Pas-de-Calais, France, Europe (FEDER), CNRS, Ministere de l'Enseignement Superieur et de la Recherche, Institut Chevreul (FR 2638), CPER, ENSCL, and contract ANR-14-CE07-0009-01. Bruker Company and Fabien Aussenac are warmly acknowledged for providing access to DNP-NMR spectrometer. Guillaume Laurent is also acknowledged for fruitful discussion. Financial support from the IR-RMN-THC FR-3050 CNRS for conducting the research is gratefully acknowledged. . - ISSN 0009-2541. - ISSN 1878-5999РУБ Geochemistry & Geophysics

Аннотация: In a Siberian river, the concentrations of chemical species vary with the hydrological regime. Dissolved Organic Matter (DOM) and aluminum ions show a parallel trend in the course of the hydrological year. However, the speciation of aluminum in this natural environment remains an open question. We propose here a combination of spectroscopic techniques to investigate the proximity between the aluminum atoms and DOM. First, one-dimensional (1D) solid-state Nuclear Magnetic Resonance (NMR), Electron Paramagnetic Resonance (EPR) and 1D and 2D solution NMR spectra were acquired, providing a clear overview of the DOM composition. Second, the sensitivity enhancement yielded by Dynamic Nuclear Polarization enabled the NMR detection of proximities between the Al-27 and C-13 nuclei. Hence, we show that 8.3 +/- 1.3% of the carboxylate groups observed by NMR are connected to the Al3+ ions in the DOM sample. We here demonstrate for the first time how advanced solid-state NMR methods can provide key information about the localization of aluminum in such complex natural materials. (C) 2017 Elsevier B.V. All rights reserved.

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Держатели документа:
Univ Lille, CNRS, ENSCL, UCCS,UMR 8181, F-59000 Lille, France.
Univ Paris 06, CNRS, METIS Milieux Environnementaux Transferts & Inte, UMR 7619, F-75252 Paris 05, France.
Univ Lille, CNRS, LASIR Lab Spect Infrarouge & Raman, UMR 8516, F-59000 Lille, France.
Univ Lille, CNRS, UGSF, UMR 8576, F-59000 Lille, France.
Univ Strasbourg, CNRS, LHyGeS, UMR 7517, F-67084 Strasbourg, France.
CNRS, GET, Observ Midi Pyrenees, UMR 5563, Toulouse, France.
V N Sukachev Inst Forest SB RAS, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Pourpoint, Frederique; Templier, Joelle; Anquetil, Christelle; Vezin, Herve; Trebosc, Julien; Trivelli, Xavier; Chabaux, Francois; Pokrovsky, Oleg S.; Prokushkin, Anatoly S.; Amoureux, Jean-Paul; Lafon, Olivier; Derenne, Sylvie; Region Nord/Pas-de-Calais, France, Europe (FEDER); Ministere de l'Enseignement Superieur et de la Recherche; Institut Chevreul [FR 2638]; CPER; ENSCL [ANR-14-CE07-0009-01]; IR-RMN-THC FR-3050 CNRS

/ T. T. Efremova, A. V. Pimenov, S. P. Efremov [et al.] // Biol. Bull. - 2021. - Vol. 48, Is. 5. - P616-625, DOI 10.1134/S1062359021050071. - Cited References:32 . - ISSN 1062-3590. - ISSN 1608-3059РУБ Biology

Аннотация: For the first time, using the example of a key object of the peat river valleys of the Kuznetsk Alatau occupied by spruce forests, it is shown that swamp waters are clearly differentiated by the content of the main ions due to forest-peat fires. Swamp waters objectively form three groups: (1) waters of the original type of mineral nutrition (fresh, soft), (2) waters of peatland covered by a medium fire (fresh, hard), (3) waters of peatland covered by a high fire (slightly saline, very hard). Magnesium ions and bicarbonates have the highest discriminating power (95%) in the determination of swamp waters. The swamp waters of the post-pyrogenic peatland do not lose the ratio of the main ions, which is similar to waters of the original type, and retain the hydro-carbonate calcium-magnesium composition.

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Держатели документа:
Russian Acad Sci, Fed Res Ctr Krasnoyarsk Sci Ctr SB RAS, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Efremova, T. T.; Pimenov, A., V; Efremov, S. P.; Avrova, A. F.; Efimov, D. Yu

/ T. T. Efremova, A. V. Pimenov, S. P. Efremov [et al.] // Biol. Bull. - 2021. - Vol. 48, Is. 5. - P616-625, DOI 10.1134/S1062359021050071 . - ISSN 1062-3590
Аннотация: Abstract: For the first time, using the example of a key object of the peat river valleys of the Kuznetsk Alatau occupied by spruce forests, it is shown that swamp waters are clearly differentiated by the content of the main ions due to forest–peat fires. Swamp waters objectively form three groups: (1) waters of the original type of mineral nutrition (fresh, soft), (2) waters of peatland covered by a medium fire (fresh, hard), (3) waters of peatland covered by a high fire (slightly saline, very hard). Magnesium ions and bicarbonates have the highest discriminating power (95%) in the determination of swamp waters. The swamp waters of the post-pyrogenic peatland do not lose the ratio of the main ions, which is similar to waters of the original type, and retain the hydro-carbonate calcium–magnesium composition. © 2021, Pleiades Publishing, Inc.

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Держатели документа:
Sukachev Institute of Forestry, Siberian Branch, Russian Academy of Sciences, Federal Research Center Krasnoyarsk Science Center of the SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Efremova, T. T.; Pimenov, A. V.; Efremov, S. P.; Avrova, A. F.; Efimov, D. Y.

/ I. N. Pavlov, Y. A. Litovka // (1 March 2021 through 5 March 2021 : Trans Tech Publications Ltd, 2021. - Vol. 1037 MSF. - P751-758, DOI 10.4028/www.scientific.net/MSF.1037.751 . -
Аннотация: This study examined the effectiveness of decontamination of industrial cyanide-containing water using mycelium-based lignocellulosic materials. These results suggest that fungi biomass and plant substrates can be used successfully in the treatment of wastewater contaminated by cyanide. Fungi were isolated from old wood samples taken from a tailing dam with high cyanide content (more than 20 years in semi-submerged condition). All isolated fungi belonged to the genus Fusarium. Fusarium oxysporum Schltdl is most effective for biodegradation of cyanide-containing wastewaters (even at low temperatures). The most optimal lignocellulosic composition for production of mycelium-based biomaterial for biodegradation of cyanide wastewater consists of a uniform ratio of Siberian pine sawdust and wheat straw. The high efficiency of mycelium-based materials has been experimentally proven in vitro at 15-25 ° C. New fungal biomaterials are provide decrease in the concentration of cyanide ions to 79% (P <0.001). Large-scale cultivation of fungi biomass was carried out by the periodic liquid-phase cultivation. The submerged biomass from bioreactor was used as an inoculum for the production of mycelium-based materials for bioremediation of cyanide wastewater in situ (gold mine tailing). © 2021 Trans Tech Publications Ltd, Switzerland.

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Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Department of Chemical Technology of Wood and Biotechnology, Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Pavlov, I. N.; Litovka, Y. A.

/ R. Khaydarov, M. Abdukhakimov, I. Garipov [et al.] // Mater. Sci.-Medzg. - 2022. - Vol. 28, Is. 1. - P89-92, DOI 10.5755/j02.ms.28473. - Cited References:17 . - ISSN 1392-1320. - ISSN 2029-7289РУБ Materials Science, Multidisciplinary

Аннотация: Cation exchange resins are widely used for water softening and demineralization all over the world. Deposition, metabolism, and growth of bacteria and fungi on the resin beads cause capacity and performance losses, especially during repeated use in cyclic and long-term operations. Over the last decades, modification of different materials by silver nanoparticles (AgNPs) has demonstrated to present significant opportunities in mitigating biofouling problems. The paper deals with a novel facile technique of introducing silver colloids (AgC) into cation exchange resin, providing the formation of silver micro-and nano-inclusions on the cation resin beads. The scanning electron microscope (SEM) measurements have confirmed a spherical shape and uniform distribution of AgC (50 - 1000 nm) on the surface of the resin. To evaluate the antibacterial and fungicidal properties of AgC on the cation resin beads, we have used Aureobasidium sp., Penicillium sp., and Staphylococcus aureus cultures. AgC coating has proved to efficiently prevent bacteria/biofilm growth on the cation resin beads and thereby significantly increase the service life of the cation exchange resin, especially in hot climatic conditions. Possible antibiofouling mechanisms of the modified nanocomposite cationite have been discussed. Since 2020, the modified silver-containing cationite has been successfully utilized for water softening systems of boiler equipment in Uzbekistan, demonstrating the suitability of the suggested facile coating technique for reducing fouling of cation-exchange resin.

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Держатели документа:
Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan.
JSS Coll Pharm, Off Campus JSS, Ootacamund, India.
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Fundamental Biol & Biotechnol, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Khaydarov, Renat; Abdukhakimov, Murodjon; Garipov, Ilnur; Sadikov, Ilkham; Krishnamurthy, Praveen Thaggikuppe; Evgrafova, Svetlana

[Текст] / В. В. Стасова, Л. Н. Скрипальщикова, Н. В. Астраханцева, А. П. Барченков // Лесной журнал. - 2023. - № 3. - С. 35-47, DOI 10.37482/0536-1036-2023-3-35-47 . - ISSN 0536-1036

ГРНТИ

68.47.03

Аннотация: Изучено содержание фотосинтетических пигментов в листьях березы повислой (Betula pendula Roth.) в условиях техногенных нагрузок и в фоновых условиях. Исследования проводили в березняках разнотравного типа леса в пригородной зоне г. Красноярска. Древостои, испытывающие техногенные нагрузки, расположены к востоку от города по направлению основного переноса воздушных масс, фоновые - в северном и западном направлениях от города, техногенная нагрузка на эти древостои минимальна. Содержание фотосинтетических пигментов определяли в этанольных экстрактах, расчет проводили на 1 г абсолютно сухой массы листьев. Аккумуляцию пыли листовой поверхностью оценивали по методике Ж. Детри (1973). В промытых листьях определяли содержание ионов цинка, свинца, алюминия и фтора. Показано, что содержание хлорофилла а в листьях берез из условно чистых мест произрастания несколько ниже, чем в листьях из древостоев, подвергающихся техногенным нагрузкам. Содержание хлорофилла b в листьях берез из разных мест произрастания оказалось в 2,5-3 раза ниже, чем хлорофилла а, и сопоставимо с содержанием каротиноидов. Общее содержание хлорофиллов колебалось от 5,4 до 7,3 мг/г абсолютно сухой массы, соотношение форм хлорофиллов - от 2,5 до 3, отношение суммы содержания хлорофиллов к суммарному содержанию каротиноидов - от 3,4 до 3,8. При увеличении пылевой нагрузки росло содержание всех фотосинтетических пигментов. Накопление ионов цинка в клетках листа березы отрицательно сказывалось на содержании пигментов, особенно хлорофилла а, но с соотношением пигментов не коррелировало. Значимой корреляции содержания свинца и фотосинтетических пигментов не установлено. При увеличении концентрации алюминия в листьях количество хлорофиллов и каротиноидов достоверно возрастало, связи уровня алюминия с соотношением пигментов не обнаружено. Между содержанием фтора в листовой массе и количеством разных форм хлорофилла достоверных корреляций не найдено. Полученные результаты свидетельствуют об адаптивной реакции фотосинтетического аппарата на присутствие поллютантов в концентрациях ниже пороговых значений
The content of photosynthetic pigments in silver birch leaves (Betula pendula Roth.) is studied in areas with technogenic load and in baseline conditions. The research is performed in a forb type of birch forest in the suburbs of Krasnoyarsk. The wood stands exposed to a high level of technogenic pressure are located to the east of the city in the prevailing direction of air mass movement. The reference stands are under the least technogenic pollution and grow in western and northern areas of the city. The photosynthetic pigments are determined in ethanol extracts, calculated per 1 g of absolute dry mass (a.d.m.) of the leaves. A level of dust deposition on leaf surfaces is evaluated according to the method of J. Detrie (1973). The amounts of zinc, lead, aluminum, and fluorine ions are estimated in the washed leaves. It is found that the content of chlorophyll a inside the birch leaves from a relatively clean environment is slightly lower compared to the concentration in the leaves with the technogenic load. The chlorophyll b concentration is 2.5-3 times less than chlorophyll a and is close to the amount of carotenoids. The total chlorophyll content in birch leaves from different locations ranges from 5.4 to 7.3 mg/g a.d.m., the ratio of chlorophyll forms varies from 2.5 to 3, the proportion of net chlorophyll to carotenoids is between 3.4 and 3.8. As the level of dust increases, the content of the total photosynthetic pigments also rises. The accumulation of zinc ions in the birch leaf cells has a negative effect on pigment content, especially chlorophyll a, but doesn’t correlate with the ratio of the pigments. There has not been any correlation found between the lead and the photosynthetic pigments. It is noted that the rise in the concentration of aluminum significantly affects the contents of the chlorophylls and the carotenoids, while no relationship has been discovered between the concentration of aluminum and the proportion of the pigments. The relationship between fluorine and different forms of chlorophyll is absent as well. The results indicate the adaptive response of the photosynthetic system to the presence of pollutants in concentrations below the threshold values that are indicated in the literature

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Держатели документа:
ИЛ СО РАН : 660036, Красноярск, Академгородок, 50, стр. 28

Доп.точки доступа:
Скрипальщикова, Лариса Николаевна; Skripalshchikova, Larisa Nikolayevna; Астраханцева, Наталья Владимировна; Astrakhantseva Natal'ya Vladimirovna; Барченков, Алексей Павлович; Barchenkov Alexey Pavlovich; Stasova, Victoriya Victorovna