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

[Text] / N. M. Tchebakova, T. A. Blyakharchuk, E. I. Parfenova // Environ. Res. Lett. - 2009. - Vol. 4, Is. 4. - Ст. 45025, DOI 10.1088/1748-9326/4/4/045025. - Cited References: 72. - This study was supported by the Russian Foundation for Basic Research (Grant 06-05-65127). The authors are grateful to Jane Bradford, Gerald Rehfeldt and Robert Monserud for helpful review comments. The authors greatly appreciate the comments of two reviewers which significantly improved the manuscript. . - 11. - ISSN 1748-9326РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Аннотация: Two quantitative methods were used to reconstruct paleoenvironments and vegetation in the Altai-Sayan mountains, Central Asia, during the Holocene. The 'biomization' method of Prentice et al (1996 Clim. Dyn. 12 185-96), applied to the surface pollen record, worked fairly well in the reconstructions of current vegetation. Applying this method to fossil pollen data, we reconstructed site paleovegetation. Our montane bioclimatic model, MontBioCliM, was used inversely to convert site paleovegetation into site paleoclimates. The differences between site paleo and current climates served as past climate change scenarios. The climatic anomalies for 2020, 2050, and 2080 derived from HadCM3 A1FI and B1 of the Hadley Centre, UK, served as climate change scenarios in the 21st century. MontBioCliM was applied directly to all climate scenarios through the Holocene to map past and future mountain vegetation over the Altai-Sayan mountains. Our results suggest that the early Holocene ca 10 000 BP was cold and dry; the period between 8000 and 5300 BP was warm and moist; and the time slice ca 3200 BP was cooler and drier than the present. Using kappa statistics, we showed that the vegetation at 8000 BP and 5300 BP was similar, as was the vegetation at 10 000 BP and 3200 BP, while future vegetation was predicted to be dissimilar to any of the paleovegetation reconstructions. The mid-Holocene is frequently hypothesized to be an analog of future climate warming; however, being known as warm and moist in Siberia, the mid-Holocene climate would likely impact terrestrial ecosystems differently from the projected warm and dry mid-century climate.

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Держатели документа:
[Tchebakova, N. M.
Parfenova, E. I.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forests, Krasnoyarsk 660036, Russia
[Blyakharchuk, T. A.] Russian Acad Sci, Siberian Branch, Inst Monitoring Climat & Ecol Syst, Tomsk 643055, Russia

Доп.точки доступа:
Tchebakova, N.M.; Blyakharchuk, T.A.; Parfenova, E.I.; Russian Foundation for Basic Research [06-05-65127]

[Text] / P. E. Tarasov [et al.] // J. Biogeogr. - 1998. - Vol. 25, Is. 6. - P1029-1053, DOI 10.1046/j.1365-2699.1998.00236.x. - Cited References: 140 . - 25. - ISSN 0305-0270РУБ Ecology + Geography, Physical

Аннотация: Fossil pollen data supplemented by tree macrofossil records were used to reconstruct the vegetation of the Former Soviet Union and Mongolia at 6000 years. Pollen spectra were assigned to biomes using the plant-functional-type method developed by Prentice ct al. (1996). Surface pollen data and a modern vegetation map provided a test of the method. This is the first time such a broad-scale vegetation reconstruction for the greater part of northern Eurasia has been attempted with objective techniques. The new results confirm previous regional palaeoenvironmental studies of the mid-Holocene while providing a comprehensive synopsis and firmer conclusions. West of the Ural Mountains temperate deciduous forest extended both northward and southward from its modern range. The northern limits of cool mixed and cool conifer forests were also further north than present. Taiga was reduced in European Russia, but was extended into Yakutia where now there is cold deciduous forest. The northern limit of taiga was extended (as shown by increased Picea pollen percentages, and by tree macrofossil records north of the present-day forest limit) but tundra was still present in north-eastern Siberia. The boundary between forest and steppe in the continental interior did not shift substantially, and dry conditions similar to present existed in western Mongolia and north of the Aral Sea.

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Держатели документа:
Moscow MV Lomonosov State Univ, Dept Geog, Moscow 119899, Russia
Univ Lund, S-22100 Lund, Sweden
Brown Univ, Dept Geol Sci, Providence, RI 02912 USA
Russian Acad Sci, Inst Geog, Moscow 109017, Russia
Moscow MV Lomonosov State Univ, Dept Biol, Moscow 119899, Russia
Ukrainian Acad Sci, Inst Biol, Kiev, Ukraine
Tomsk State Univ, Inst Biol & Biophys, Tomsk 634050, Russia
Fac Sci & Tech St Jerome, CNRS, UA 1152, Lab Bot Hist & Palynol, F-13397 Marseille 20, France
St Petersburg State Univ, Dept Geog & Geoecol, St Petersburg 199178, Russia
Russian Acad Sci, Inst Evolut & Ecol, Moscow 109017, Russia
Russian Acad Sci, Inst Biol, Karelian Branch, Petrozavodsk 185610, Russia
Russian Acad Sci, Forest Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Univ Lund, Dept Plant Ecol, S-22362 Lund, Sweden
Russian Acad Sci, Inst Limnol, St Petersburg 196199, Russia
Georgian Acad Sci, Inst Palaeobiol, GE-380004 Tbilisi, Rep of Georgia
Cent Geol Lab, Moscow, Russia
Russian Acad Sci, Forest Inst, Ural Branch, Ekaterinburg 620134, Russia
Estonian Acad Sci, Inst Geol, EE-0105 Tallinn, Estonia
Russian Acad Sci, Inst Geol, Siberian Branch, Novosibirsk 630090, Russia
Inst Geol Sci, Minsk 220141, Byelarus

Доп.точки доступа:
Tarasov, P.E.; Webb, T...; Andreev, A.A.; Afanas'eva, N.B.; Berezina, N.A.; Bezusko, L.G.; Blyakharchuk, T.A.; Bolikhovskaya, N.S.; Cheddadi, R...; Chernavskaya, M.M.; Chernova, G.M.; Dorofeyuk, N.I.; Dirksen, V.G.; Elina, G.A.; Filimonova, L.V.; Glebov, F.Z.; Guiot, J...; Gunova, V.S.; Harrison, S.P.; Jolly, D...; Khomutova, V.I.; Kvavadze, E.V.; Osipova, I.M.; Panova, N.K.; Prentice, I.C.; Saarse, L...; Sevastyanov, D.V.; Volkova, V.S.; Zernitskaya, V.P.

/ M. D. Evdokimenko // Geography and Natural Resources. - 2011. - Vol. 32, Is. 3. - P242-247, DOI 10.1134/S1875372811030061 . - ISSN 1875-3728
Аннотация: Potential fire danger and altitudinal pyrological spectra of forests are considered. The paper highlights a high fire risk, specifically at the time of forest-pyrogenic anomalies attended with local deforestation. An analysis is made of the combustibility of characteristic forest ranges at different stages of economic development. В© 2011 Pleiades Publishing, Inc.

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Держатели документа:
Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Evdokimenko, M.D.

/ A. B. Ptitsyn [et al.] // Geography and Natural Resources. - 2010. - Vol. 31, Is. 2. - P144-147, DOI 10.1016/j.gnr.2010.06.009 . - ISSN 1875-3728
Аннотация: Within the long-term research program on reconstruction of palaeoclimatic characteristics of Central Asia, we carried out a palaeoreconstructions of climate aridity/humidity in the Transbaikalia, based on investigating layered palynological spectra and chemical composition of bottom sediments from Lake Arakhlei. It was found that the humid phases of climate on the time interval 90-2005 used in calculations exhibits a periodicity of 20-45 years, which roughly corresponds to the humidity cycles of Eurasia. В© 2010.

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Держатели документа:
Institute of Natural Resources, Ecology and Cryology SB RAS, Chita, Russian Federation
Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russian Federation
Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Environmental Change Research Centre, Department of Geography, University College London, United Kingdom
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ptitsyn, A.B.; Reshetova, S.A.; Babich, V.V.; Daryin, A.V.; Kalugin, I.A.; Ovchinnikov, D.V.; Panizzo, V.; Myglan, V.S.

/ T. T. Efremova [et al.] // Russ. J. Gen. Chem. - 2014. - Vol. 84, Is. 13. - P2562-2571, DOI 10.1134/S1070363214130131 . - ISSN 1070-3632
Аннотация: Results of a complex studying the preparations of humic acids from bog waters by methods of IR spectroscopy, nuclear magnetic resonance and electronic paramagnetic resonance have been considered in the paper. Properties of humic acids are evaluated according to the elemental composition. Commonality and character of varying the composition of humic acids under forest oligotrophic and mesotrophic bogs are discussed hereaswell. The opinion about probable mechanisms of humic acid synthesis in bogs of different genesis is suggested.

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Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/28Krasnoyarsk, Russian Federation
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/24Krasnoyarsk, Russian Federation

Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Pavlenko, N.I.; Maksimov, N.G.

[Text] / P. V. Artyushenko [et al.] // J. Struct. Chem. - 2016. - Vol. 57, Is. 2. - P287-293, DOI 10.1134/S0022476616020074. - Cited References:27. - This work was supported by RFBR projects Nos. 13-04-00375 and16-04-00132. . - ISSN 0022-4766. - ISSN 1573-8779РУБ Chemistry, Inorganic & Nuclear + Chemistry, Physical

Аннотация: The B3LYD /6-31(p,d) density functional method is applied to pheromones of the forest xylophagous insects Ips typographus L., Monochamus urussovi Fisch., and Monochamus galloprovincialis Oliv. to calculate the absorption spectra and find excited states. The calculated results are used to assess the possible activity of the molecules when they are affected by solar radiation.

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Siberian Branch, KSC Presidium, Int Res Ctr Studies Extreme States Organism, Krasnoyarsk, Russia.
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk, Russia.

Доп.точки доступа:
Artyushenko, P. V.; Tomilin, F. N.; Kuzubov, A. A.; Ovchinnikov, S. G.; Tsikalova, P. E.; Ovchinnikova, T. M.; Soukhovolsky, V. G.; RFBR [13-04-00375, 16-04-00132]

[Text] / A. S. Krylov [et al.] // Crystengcomm. - 2016. - Vol. 18, Is. 43. - P8472-8486, DOI 10.1039/c6ce01144f. - Cited References:47. - The authors are grateful to Prof. I. N. Flerov for valuable support and useful discussions. This work was partly supported by the Russian Foundation for Basic Research, Project 16-02-00102. The research is partially conducted within the framework of the state task of the Ministry of Education and Science of the Russian Federation for Siberian Federal University on R&D performance in 2014 (Task 3.2534.2014/K). X-ray data from powders, Raman NMR, and IR spectra were obtained with use the analytical equipment of Krasnoyarsk Center of collective use SB RAS. . - ISSN 1466-8033РУБ Chemistry, Multidisciplinary + Crystallography

Аннотация: This work is devoted to the complex research on temperature phase transitions in a CsScF4 crystal. The crystal structure was solved and refined at different temperatures by using the Rietveld method. Structural phase transitions were investigated by using the following spectroscopic methods, some of them for the first time: Brillouin spectroscopy, Raman spectroscopy, IR absorption spectroscopy and NMR. The symmetry analysis of the Brillouin zone center of all phases is presented. The vibrational spectra of the crystal in three phases have been calculated. The structural phase transition mechanism was determined. The transitions at T-1 = 475 K and T-2 = 317.5 K are of displacement type. The Raman soft modes have been associated with rotations of the ScF6 octahedral group.

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Держатели документа:
SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
SB RAS, Inst Automat & Electrometry, Novosibirsk 630090, Russia.

Доп.точки доступа:
Krylov, A. S.; Molokeev, M. S.; Misyul, S. V.; Krylova, S. N.; Oreshonkov, A. S.; Ivanenko, A. A.; Zykova, V. A.; Ivanov, Y. N.; Sukhovsky, A. A.; Voronov, V. N.; Safonov, I. N.; Vtyurin, A. N.; Russian Foundation for Basic Research [16-02-00102]

/ 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

/ M. E. Konovalova, D. M. Danilina // Russ. J. Ecol. - 2019. - Vol. 50, Is. 3. - P234-240, DOI 10.1134/S1067413619030081. - Cited References:22. - This study was performed within the framework of Basic Project no. 0356-2016-0708 of the Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences and supported by the Russian Foundation for Basic Research, project no. 18-05-00781. . - ISSN 1067-4136. - ISSN 1608-3334РУБ Ecology

Аннотация: The ontogenetic spectra and age structure of cenopopulations of key species, Pinus sibirica (DuTour) and Abies sibirica (Ledeb.), have been studied in a climax Siberian pine forest with Carex macroura, tall herbs, and ferns (the most common forest type among chern forests of the Western Sayan). The rates of ontogenetic development of P. sibirica and A. sibirica cenopopulations under given site conditions have been estimated. These cenopopulations differ in structure but are stable. The mechanism of their stability is described, which is provided by a complex interaction of forest-forming tree species under competition from highly developed herbaceous layer.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Konovalova, M. E.; Danilina, D. M.; Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences [0356-2016-0708]; Russian Foundation for Basic Research [18-05-00781]

/ G. F. Antonova [et al.] // Wood Sci Technol. - 2019. - Vol. 53, Is. 4. - P927-952, DOI 10.1007/s00226-019-01108-w . - ISSN 0043-7719
Аннотация: Lignification of earlywood and latewood during annual ring formation in Scots pine stem in the season occurs with opposite dynamics. The subject of this study was to examine the structure of lignin deposited at successive stages of secondary cell wall maturation of these two wood types. Lignin specimens derived from developing cells by the thioglycolic acid were analyzed by the methods of alkaline oxidation, alkaline and acid hydrolysis and IR Fourier spectroscopy. The composition of lignin structural subunits was found to change at each stage of lignification in dependence of the forming wood type. The molar ratio of p-hydroxyphenyl, guaiacyl and syringyl subunits in polymer was modified in earlywood and latewood oppositely. In the course of earlywood cell maturation, syringyl subunits in lignin increased in parallel with p-hydroxyphenyl units. During latewood lignification, syringyl and p-hydroxyphenyl subunits in lignin structure decreased, whereas guaiacyl subunits increased as secondary cell wall maturation. In lignin isolated from both wood types, the ether-bound carbohydrates were more than by an order of magnitude of ester-bound carbohydrates. In early xylem, the content of ether-bound carbohydrates practically did not change during lignin deposition, whereas carbohydrates with ester linkages gradually decreased toward mature xylem. Lignification in latewood was accompanied by the decline of both ester-linked and ether-linked carbohydrates with a sharp increase in the latter in mature xylem. Hemicelluloses, included in such bonds, contained mainly the residues of xylose and arabinose. The composition and the content of hydroxycinnamic acids, taking part in these linkages, also changed in dependence of lignification steps and wood type. The data received are in agreement with the alterations in absorption IR spectra of lignins isolated from the cells at the beginning of lignification and mature xylem. The reasons for the differences in the lignin structure during earlywood and latewood development are discussed. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

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Держатели документа:
VN Sukachev Institute of Forest, SB RAS Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Solid State Physics RAS, 2 Academician Ossipyan Str., Chernogolovka, Moscow District, 142432, Russian Federation

Доп.точки доступа:
Antonova, G. F.; Varaksina, T. N.; Zheleznichenko, T. V.; Bazhenov, A. V.

[Текст] : статья / М. Е. Коновалова, Д. М. Данилина // Экология. - 2019. - № 3. - С. 189-195, DOI 10.1134/S0367059719030089 . - ISSN 0367-0597
   Перевод заглавия: Cenopopulation Structure of Key Species in Climax Siberian Pine Chern Forests of the Western Sayan Mountains

УДК

581.555.2

574.47

581.552

Аннотация: На примере климаксового кедровника осочково-крупнотравно-папоротникового (фонового типа леса для черневых лесов Западного Саяна) изучены онтогенетические спектры и возрастная структура ценопопуляций ключевых видов: Pinus sibirica (Du Tour) и Abies sibirica (Ledeb.). Выявлены темпы их онтогенетического развития в данных лесорастительных условиях. Ценопопуляции P. sibirica и A. sibirica являются устойчивыми, хотя и отличаются по структуре. Показан механизм устойчивости сообществ, обеспечиваемый сложным взаимодействием видов ценозообразователей в условиях конкуренции со стороны мощно развитой травяной растительности.
The ontogenetic spectra and age structure of cenopopulations of key species, Pinus sibirica (DuTour) and Abies sibirica (Ledeb.), have been studied in a climax Siberian pine forest with Carex macroura, tall herbs, and ferns (the most common forest type among chern forests of the Western Sayan). The rates of ontogenetic development of P. sibirica and A. sibirica cenopopulations under given site conditions have been estimated. These cenopopulations differ in structure but are stable. The mechanism of their stability is described, which is provided by a complex interaction of forest-forming tree species under competition from highly developed herbaceous layer

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Переводная версия - SPRINGER

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

Доп.точки доступа:
Коновалова, Мария Евгеньевна; Konovalova, Mariya Yevgen'yevna; Данилина, Дилшад Магомедовна; Danilina, Dilshad Magomedovna

/ M. E. Konovalova, D. S. Sobachkin // Vestn. Tomsk. Gos. Univ. Biol. - 2020. - Is. 52. - С. 71-84, DOI 10.17223/19988591/52/4. - Cited References:0. - This work was partially conducted within the framework of Basic Projects of Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences (No 0356-2019-0024 and No 0356-2019-0027) and supported by the Russian Foundation for Basic Research (Project No18-05-00781.). . - ISSN 1998-8591. - ISSN 2311-2077РУБ Biology + Ecology

Аннотация: Understanding of the key species coenopopulations structure of late-successional forest communities serve as a model of the forest ecosystems state and stability in the organization of sustainable forest management and conservation of biological diversity. The ontogenetic and age structures of cenopopulations of the key species, Pinus sibirica DuTour and Abies sibirica Ledeb., were studied in a climax S Siberian pine forest with Vaccinium myrtillus L. and green hypnum mosses (the most common forest type among taiga forests of the East Sayan mountains). The permanent sample plot (50x50 m) was located in the northeastern part of the Idarskoe Belogorye ridge of the East Sayan in the middle part of a westerly slope with a steepness of 2 degrees, at an elevation of 1000 m a.s.l. (54 degrees 44'N, 96 degrees 07'E). The forest stand had low productivity (quality class V), high closeness of crowns (about 1.0) and mixed composition with predominance of P. sibirica, which are characteristic of the mountain-taiga cedar forests of the Eastern Sayan (See Table.). We performed general geobotanical description, measurement of size and age, assessment of ontogenetic and sanitary states of each tree, as well as assessment of reforestation on the sample plot. P. sibirica coenopopopulation had a wide age amplitude (from 1 to 200 years) and absolutely uneven-aged structure, mass reforestation (more than 3000 ind./ha), large sizes of mature individuals (maximum diameter - 58 cm, height - 21.3 m), predominance of the number (70% of the total density of the forest stand) and timber stock (95%). The ontogenetic structure of P. sibirica cenopopulation was characterized by a normal state (See Fig. 1 and 2) with a sharp peak of the distribution and distinct left-handed skewness (coefficient of asymmetry - 2.0; kurtosis - 4.1). This corresponds with the concept of consistent self-reproduction and stability of forest ecosystems. A. sibirica was inferior in terms of the reforestation number (1575 ind./ha), life expectancy (up to 110 years) and the size of mature trees (maximum diameter - 22.7 cm, height 16 m). The ontogenetic structure of A. sibirica cenopopulation (See Fig. 1 and 3) is characterized by a complete spectrum and more distinct left-handed skewness. Thus, P. sibirica had a clearly expressed competitive population strategy. A. sibirica showed indications of phytocenotic tolerance. It is obvious that sustainable forest ecosystems in the absence of anthropogenic pressure in the mountain-taiga forest belt conditions is formed in the process of continuous change of P. sibirica age generations. The paper contains 3 Figures, 1 Table and 29 References.

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Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Konovalova, Mariya E.; Sobachkin, Denis S.; Basic Projects of Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences [0356-2019-0024, 0356-2019-0027]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-05-00781]

[Текст] / С. Р. Лоскутов, Е. А. Тютькова, М. А. Пляшечник, Е. А. Петрунина [и др.] // Сибирский лесной журнал. - 2021. - № 6. - С. 39-45, DOI 10.15372/SJFS20210604 . - ISSN 2311-1410

ГРНТИ

68

68.47.37

Аннотация: Исследовалось изменение физико-химических показателей древесины сосны обыкновенной ( Pinus sylvestris L.) на ранней стадии развития в ней грибной инфекции с помощью методов ИК-Фурье спектроскопии и сканирующей электронной микроскопии (СЭМ). Анализ СЭМ-изображений локально поврежденной древесины показал наличие гифов как в межклеточном пространстве, так и люменах единичных трахеид. Из сравнения результатов анализов поврежденной и здоровой древесины установлен ряд параметров ИК-спектров - изменение отношений интенсивности поглощения на характеристических частотах (волновых числах, см-1) для полимеров древесинного вещества (гемицеллюлоз, целлюлозы, лигнина) и грибов (хитина и глюканов) I 1512/898, I 1512/1157, I 1512/894, I 1647/1551, I 1695/1533, I 1620/1564, позволяющий идентифицировать наличие и степень воздействия грибной инфекции на древесину. Представлен новый вариант оценки изменений в строении древесинного вещества, заключающийся в сравнительном анализе вторых производных ИК-спектров поглощения здоровой и поврежденной древесины. Способ существенно улучшает визуализацию изменений по спектрам и позволяет с большей точностью определять «адреса» воздействия грибной инфекции на древесинное вещество по интенсивности и частоте полос поглощения. Кроме того, может быть использован для мониторинга появления азотсодержащих соединений в результате присутствия грибов. Реализованные методические приемы указывают на возможность использования в работе радиальных кернов с целью проведения их сопряженного анализа, «привязывая» результаты ИК-Фурье спектроскопии к параметрам годичных колец и в целом к хронологиям, а также соотнося их с морфолого-анатомическим строением годичного кольца и отдельных трахеид по данным сканирующей электронной микроскопии. Предложенный подход к диагностике повреждения древесины на ранней стадии развития грибной инфекции признан эффективным, экспрессным и не требующим сложной пробоподготовки
The changes in the physico-chemical parameters of Scotch pine Pinus sylvestris L. wood were studied at an early stage of a fungal infection development in it using the methods of IR-Fourier spectroscopy and scanning electron microscopy (SEM). Analysis of SEM-images of locally damaged wood showed the presence of hyphae both in the intercellular space and in the lumens of single tracheids. From the comparison of the results of analyses of damaged and healthy wood, a number of parameters of the IR spectra were established - a change in the ratio of the absorption intensity at characteristic frequencies (wave numbers, cm-1) for polymers of wood substance (hemicellulose, cellulose, lignin) and fungi (chitin and glucans) I 1512/898, I 1512/1157, I 1512/894, I 1647/1551, I 1695/1533, I 1620/1564, which allows identifying the presence and degree of exposure to fungal infection on wood. A new version of the assessment of changes in the structure of the wood substance is presented, which consists in a comparative analysis of the second derivatives of the IR absorption spectra of sound and damaged wood. The method significantly improves not only the visualization of changes in the spectra, but also allows to more accurately determine the «addresses» of the impact of a fungal infection on the wood substance by the intensity and frequency of the absorption bands. In addition, it can be used to monitor the appearance of nitrogen-containing compounds because of the presence of fungi. The implemented methodological techniques indicate the possibility of using radial cores in the work for the purpose of conducting their conjugate analysis, «linking» the results of IR-Fourier spectroscopy to the parameters of the annual rings and, in general, to chronologies, as well as correlating them with the morphological and anatomical structure of the annual ring and individual tracheids according to scanning electron microscopy data. The proposed approach to the diagnosis of wood damage at an early stage of the development of a fungal infection is effective, rapid and does not require complex sample preparation

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

Доп.точки доступа:
Тютькова, Е.А.; Tyut'kova E.A.; Пляшечник, Мария Анатольевна; Plyashechnik Mariya Anatol'yevna; Петрунина, Е.А.; Шапченкова, Ольга Александровна; Shapchenkova Ol'ga Alexandrovna; Анискина, Антонина Александровна; Aniskina Antonina Alexandrovna; Loskutov Sergey Redzhinal'dovich