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

: сборник научных трудов / H. Santruckova, O. B. Shibistova // Tree species effects on soils: implications for global change. - 2005. - С. 229-246. - Библиогр. в конце ст.
Аннотация: Microbial parameters derived from the short-term Michaelis-Menten type model are tested and applied on the ecosystem study Soil dried immediately after sampling and stored at 4 graduate C was moistened to 60% water holding capacity and CO2 production was measured (GC) after 24 h (respiration response to water supply, Vds). The glucose was added into the soil and CO2 production was measured 16 to 24 h later (maximum respiration, Vmax). Substrate saturation kinetics of respiration was measured after addition of glucose in 6 different concentrations. Soil heterotrophic respiratory potential was expressed as Vds/Vmax ratio; biologically available C (ACbr) and potential flush of the biologically available C (ACds/ACbr) was estimated using Michaelis-Menten type model. After moistening of the soils, extra C is released, the amount of which is characteristic for the given soil. Application pf the short-term kinetic approach on the upper soil layer of various ecosystems (Western Canada, Central Siberia transect).

Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28

Доп.точки доступа:
Santruckova, H.; Сантрукова Н.; Shibistova, Olga Borisovna; Шибистова, Ольга Борисовна
Имеются экземпляры в отделах:
РСФ (13.03.2007г. (1 экз.) - Б.ц.) - свободны 1

/ O. S. Pokrovsky [et al.] // C. R. Geosci. - 2012. - Vol. 344, Is. 11.12.2013. - P663-677, DOI 10.1016/j.crte.2012.08.003. - Cited References: 81. - This work was supported by ANR "Arctic Metals", LIA "LEAGE", PICS No. 6063, GDRI "CAR WET SIB", grants RFBR-CNRS Nos 12-05-91055, 08-05-00312_a, 07-05-92212-CNRS_a, 08-04-92495-CNRS_a, CRDF RUG1-2980-KR10, Federal Program RF "Kadry" (contract N 14.740.11.0935), and Programs of Presidium RAS and UrORAS. . - 15. - ISSN 1631-0713РУБ Geosciences, Multidisciplinary

Аннотация: Warming of the permafrost accompanied by the release of ancient soil organic carbon is one of the most significant environmental threats within the global climate change scenario. While the main sites of permafrost carbon processing and its release to the atmosphere are thermokarst (thaw) lakes and ponds, the main carriers of carbon and related major and trace elements from the land to the Arctic ocean are Russian subarctic rivers. The source of carbon in these rivers is atmospheric C consumed by chemical weathering of rocks and amplified by plant uptake and litter decomposition. This multidisciplinary study describes results of more than a decade of observations and measurements of elements fluxes, stocks and mechanisms in the Russian boreal and subarctic zone, from Karelia region to the Kamchatka peninsula, along the gradient of permafrost-free terrain to continuous permafrost settings, developed on various lithology and vegetation types. We offer a comprehensive, geochemically-based view on the functioning of aquatic boreal systems which quantifies the role of the following factors on riverine element fluxes: (1) the specificity of lithological substrate; (2) the importance of organic and organo-mineral colloidal forms, notably during the snowmelt season; (3) the phenomenon of lakes seasonal overturn; (4) the role of permafrost within the small and large watersheds; and (5) the governing role of terrestrial vegetation in element mobilization from rock substrate to the river. Care of such a multiple approach, a first order prediction of the evolution of element stocks and fluxes under scenario of progressive warming in high latitudes becomes possible. It follows the increase of frozen peat thawing in western Siberia will increase the stocks of elements in surface waters by a factor of 3 to 10 whereas the increase of the thickness of active layer, the biomass and the primary productivity all over permafrost-affected zone will bring about a short-term increase of elements stocks in labile reservoir (plant litter) and riverine fluxes by a factor of 2. The change of the plant productivity and community composition under climate warming in central Siberia will be the most important factor of major and trace element fluxes increase (probably a factor of 2) from the soil to the river and, finally, to the Arctic Ocean. (c) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

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Держатели документа:
[Pokrovsky, Oleg S.
Viers, Jerome
Dupre, Bernard
Audry, Stephane] Univ Toulouse, CNRS IRD OMP, Geosci Environm Toulouse, F-31400 Toulouse, France
[Chabaux, Francois] CNRS, EOST, UMR 7517, CGS, F-67084 Strasbourg, France
[Gaillardet, Jerome] Inst Phys Globe Strasbourg Paris, Equipe Geochim Cosmochim, F-75005 Paris, France
[Prokushkin, Anatoly S.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia
[Shirokova, Liudmila S.] Russian Acad Sci, Inst Ecol Problems N, Arkhangelsk, Russia
[Kirpotin, Sergey N.] Tomsk State Univ, Tomsk 634050, Russia
[Lapitsky, Sergey A.] Moscow MV Lomonosov State Univ, Geol Fac, Moscow, Russia
[Shevchenko, Vladimir P.] RAS, PP Shirshov Oceanol Inst, Moscow 117901, Russia

Доп.точки доступа:
Pokrovsky, O.S.; Viers, J...; Dupre, B...; Chabaux, F...; Gaillardet, J...; Audry, S...; Prokushkin, A.S.; Shirokova, L.S.; Kirpotin, S.N.; Lapitsky, S.A.; Shevchenko, V.P.

[Text] / O. N. Voinova [et al.] // Appl. Biochem. Microbiol. - 2009. - Vol. 45, Is. 4. - P384-388, DOI 10.1134/S0003683809040061. - Cited References: 21. - This study was supported by the Ministry of Education and Science of the Russian Federation and the U.S. Civilian Research and Development Foundation grant no. P1Me002), joint program of the Russian Foundation for Basic Research and the Krasnoyarsk Krai Science Foundation (project no. 07-08-96800- r_yenisei_a), the Krasnoyarsk Krai Science Foundation (project no. 18G142), and the Russian Science Support Foundation. . - 5. - ISSN 0003-6838РУБ Biotechnology & Applied Microbiology + Microbiology

Аннотация: The possibility of use of polyhydroxyalkanoates (PHAs), biodegradable microbial polyesters, as a carrier for pesticides (alpha-hexachlorcyclohexane and lindane) for targeted and controlled delivery of these compounds to soil was investigated. The kinetics of polymer degradation and the dynamics of pesticide release from the extended-release formulations was studied. It is shown that pesticides embedded in a degradable polymer (PHA) carrier are released gradually and slowly, without surges, as the polymer is degraded by the soil micro-flora. The microbial soil component actively responded to the addition of the polymer as an additional nutrient substrate: the latter was degraded and then utilized. The rate of the pesticide release to the soil can be regulated by varying the polymer-pesticide ratio.

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Держатели документа:
[Voinova, O. N.
Kalacheva, G. S.] Akademgorodok, Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Volova, T. G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Grodnitskaya, I. D.] Akademgorodok, Russian Acad Sci, Siberian Branch, Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Voinova, O.N.; Kalacheva, G.S.; Grodnitskaya, I.D.; Volova, T.G.; Ministry of Education and Science of the Russian Federation; U.S. Civilian Research and Development Foundation [P1Me002]; Russian Foundation for Basic Research; Krasnoyarsk Krai Science Foundation [07-08-96800- r_yenisei_a, 18G142]; Russian Science Support Foundation

/ V. G. Soukhovolsky [et al.] // Doklady Biochemistry and Biophysics. - 2005. - Vol. 403, Is. 1-6. - P297-299, DOI 10.1007/s10628-005-0096-5 . - ISSN 1607-6729

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Держатели документа:
Sukachev Institute of Forestry, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian State Technological University, Krasnoyarsk, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660062, Russian Federation

Доп.точки доступа:
Soukhovolsky, V.G.; Pal'nikova, E.N.; Tarasova, O.V.; Karlyuk, A.Yu.

/ E. V. Presnov // Ontogenez. - 1977. - Vol. 8, Is. 4. - С. 420-423 . - ISSN 0475-1450

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Держатели документа:
Inst. Forest Wood, Siberian Branch, USSR Acad. Sci., Krasnoyarsk, Russia

Доп.точки доступа:
Presnov, E.V.

/ V. I. Kharuk [et al.] // Remote Sensing of Environment. - 1994. - Vol. 47, Is. 1. - P98-105 . - ISSN 0034-4257
Аннотация: Induction kinetics of chlorophyll fluorescence (the Kautsky effect) and delayed fluorescence (DF) of some cold climate species were studied in both laboratory and in situ experiments to assess their vlaue as indicators of plant health. Experiments included studies of natural variability of fluorescence in connection with the seasonal leaf maturation process, as well as the influence of environmental stress factors, such as ozone. It was found that parameters of induction curves (normalized variable fluorescence, time of its half decrease) could be used as indicators of plant health. No significant differences have been elicited between the information content of the Kautsky effect and induction curves of DF as tools for remote sensing. It is suggested that measurements of the single decay curves of DF are preferable for remote estimation of photosynthetic capacity. В© 1994.

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Держатели документа:
Sukachev Forest Institute, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk State Agricultural University, Krasnoyarsk, Russian Federation
University of New Hampshire, Institute for the Study of Earth, Oceans, and Space, Durham, United States
NASA / Goddard Space Flight Center, Laboratory for Terrestrial Physics, Biospheric Sciences Branch, United States

Доп.точки доступа:
Kharuk, V.I.; Morgun, V.N.; Rock, B.N.; Williams, D.L.

/ V. I. Kharuk [и др.] // Dokl Akad Nauk. - 2004. - Vol. 398, Is. 3. - С. 404-408 . - ISSN 0869-5652
Аннотация: The presented analysis of the forest boundary dynamics and tree stocks compactness in the forest-tundra ecotone was based on cosmic mapping time series for the last 30 years. Investigated territory (36 thousand ha) incorporated the very northern world's forest massif Ary-Mas and located to the south from it stocks of trees (larch Larix gmelinii). The increasing of tree stock compactness and larch penetration to the tundra zone in the end of XX century induced by climate changes is shown. At the same time from the south and west the expansion of boreal tree species (Siberian pine, spruce, fir) into larch domination zones is observed.

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Держатели документа:
Inst. Lesa im. V.N. Sukacheva, SO RAN, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kharuk, V.I.; Im, S.T.; Ranson, K.J.; Naurzbaev, M.M.

/ E. A. Tyutkova [et al.] // J. Therm. Anal. Calorim. - 2017. - Vol. 130, Is. 3. - P1391-1397, DOI 10.1007/s10973-017-6550-7. - Cited References:33 . - ISSN 1388-6150. - ISSN 1588-2926РУБ Thermodynamics + Chemistry, Analytical + Chemistry, Physical

Аннотация: This paper deals with the results of a study of the thermodestruction of the earlywood and latewood in the 1988-1998 growth rings of Gmelin larch (Larix gmelinii (Rupr.) Rupr.) trees growing along the polar tree line (70(A)52'53aEuro(3)N, 102A degrees 58'26aEuro(3)E, Taimyr Peninsula). The study used methods of thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC). Thermogravimetric data obtained were analyzed by Ozawa-Flynn-Wall kinetic model. We determined macrokinetic parameters of thermodestruction. Earlywood and latewood showed no significant difference in cellulose/hemicellulose/lignin ratio, whereas they differed significantly in destruction average value of activation energy (197.55 and 55.90 kJ mol(-1), respectively). Our analysis of the correlation of thermodestruction values with mean monthly air temperature and precipitation revealed that component composition of both earlywood and latewood was influenced more by the weather conditions at the beginning of the growing season (April-June). Air temperature had markable influence on the wood component composition during cell wall synthesis only in latewood, whereas precipitation influenced the composition in both latewood and earlywood. TG/DTG and DSC methods were found to be promising for developing information on biochemical composition of early and latewood tracheids in stems and for identifying the extent of the influence of climatic changes on cell wall synthesis.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Forest Inst, Lab Phys & Chem Biol Woody Plants, Akad Dorodork 50-28, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Siberian Branch, Forest Inst, Dendroecol Dept,Lab Tree Ring Struct, Krasnoyarsk, Russia.

Доп.точки доступа:
Tyutkova, E. A.; Loskutov, S. R.; Shashkin, A. V.; Benkova, V. E.

/ I. N. Tretyakova [et al.] // Plant Cell Tissue Organ Cult. - 2018, DOI 10.1007/s11240-018-01533-y . - Article in Press. - ISSN 0167-6857
Аннотация: We carried out immunoassay of plant hormones [indoleacetic acid (IAA), cytokinins and abscisic acid (ABA)] in the extracts from explants (megagametophytes and embryos) and from four long-term proliferating embryogenic cell lines of Larix sibirica. Immunohistochemical detection of hormones has also been performed at the stage of initiation of somatic embryogenesis and in embryogenic cultures during the process of somatic embryo morphogenesis. During induction of somatic embryogenesis in tissue culture, the first stage of cell development is manifested in their elongation and polarization. Immunohistochemical analysis of hormones showed localization of IAA at one pole of elongated cells of L. sibirica. The polarity of embryogenic structure development persisted later on. The difference has been shown in the content of hormones between the explants and embryogenic cultures. High level of hormones was detected in the cell line (Cl4), distinguished by great number of globular embryos and high capacity for their maturation. Hybrid line Cl5 (L. sibirica ? L. sukaszewii) formed very short suspensor, accumulated higher amount of ABA in the head of somatic embryos (SEs) than did other lines, while SEs of this cell line did not maturate. Cl6 was characterized by low plant hormones content in proliferating embryogenic cultures and low yield of mature somatic embryos. © 2018, Springer Nature B.V.

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Держатели документа:
Siberian Branch, Federal Research Center «Krasnoyarsk Science Center SB RAS», V.N. Sukachev Institute of Forest, Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, 660036, Russian Federation
Institute of Biology, Ufa Federal Research Center, Russian Academy of Sciences, Prospect Oktyabrya 69, Ufa, 450054, Russian Federation
Department of Biology, Bashkir State University, Validi 32, Ufa, 450076, Russian Federation

Доп.точки доступа:
Tretyakova, I. N.; Kudoyarova, G. R.; Park, M. E.; Kazachenko, A. S.; Shuklina, A. S.; Akhiyarova, G. R.; Korobova, A. V.; Veselov, S. U.

/ E. A. Babushkina [et al.] // Dendrochronologia. - 2019. - Vol. 53. - P114-124, DOI 10.1016/j.dendro.2018.12.003 . - ISSN 1125-7865
Аннотация: Wood anatomy was offered as spatiotemporal proxy record for tracheid differentiation kinetics due to its advantages in terms of much longer cover period and less demanding measurements. In this study, external and internal regulation of earlywood-to-latewood transition and properties of latewood of Picea obovata Ledeb were considered. The values and interrelations between cell number, tree ring width, maximal and mean radial cell diameter, maximal cell wall thickness and position of the transition to thick-walled tracheids were investigated within site and along the altitudinal gradient. Correlations with moving 21-day climatic series were used to estimate high-resolutional external influences. Relationships between tree ring traits are spatially stable and close within one stage of differentiation and between cells production and expansion. Relationships between sites differ in upper and lower parts of the gradient. Most of traits respond to the primary limiting factors near summer solstice; however, maximal cell wall thickness responds positively to the temperatures at the + 10 °C threshold. Altitudinal anatomical patterns revealed interaction of intrinsic and external factors in the regulation of tracheid differentiation. Timing of climatic response highlighted role of photoperiod as a trigger in the earlywood-to-latewood transition, and crucial role of the growth season ending for latewood development. © 2018 Elsevier GmbH

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Держатели документа:
Khakass Technical Institute, Siberian Federal University, 27 Shchetinkina, Abakan, 655017, Russian Federation
Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041, Russian Federation
Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, 50/28 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Babushkina, E. A.; Belokopytova, L. V.; Zhirnova, D. F.; Vaganov, E. A.

/ F. Gao, C. Peng, H. Wang [et al.] // Forests. - 2020. - Vol. 11, Is. 9. - Ст. 912, DOI 10.3390/F11090912 . - ISSN 1999-4907
Аннотация: Korean pine is the dominant species of Korean pine forests. It is an economically valuable species that yields oil, high-quality timber and nuts, and it offers great prospects for further development. Complete regenerated plants of Korean pine were obtained via somatic embryogenesis using megagametophytes as the explant. The seeds of 27 families of Korean pine were collected to induce embryogenic lines. We compared the effects of explant collection time, family and medium components (concentrations of sucrose, plant growth regulators and acid-hydrolyzed casein) on embryogenic lines induction. The effects of plant growth regulators and L-glutamine contents on the proliferation and maturation of embryogenic cell lines were studied, and the germinating ability of different cell lines was evaluated. The embryogenic lines induction percentage of Korean pine reached 33.33%. When 4.52 ?mol·L-1 2,4-D and 2.2 ?mol·L-1 6-BA were added to the medium of embryogenic lines proliferation, the ability of embryo maturation was the best (cell line 001#-100 was 135.71·g-1 fresh weight). Adding 1-1.5g L-1 L-glutamine to the proliferation medium can improve the ability of embryo maturation (cell line 001#-100 was 165.63·g-1 fresh weight). The germination percentage of the three cell lines tested was significant, and the highest was 66%. We report on successful regeneration and cryopreservation methods for somatic embryos of Korean pine. This technology could be used to propagate the excellent germplasm resources of Korean pine and to establish multi-varietal forestry. © 2020 by the authors.

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Держатели документа:
State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, Harbin, 150040, China
Laboratory of Forest Genetics and Breeding, Institution of the Russian Academy of Sciences V.N., Sukachev Institute of Forest Siberian Branch of RAS, Krasnoyarsk, 660036, Russian Federation
Department of Cell Biology and Institute of Plant Physiology K.A., Timiryazev Russian Academy of Sciences, Moscow, 127276, Russian Federation
Department of Plant Physiology, Biological Faculty, Lomonosov Moscow State University, Moscow, 119991, Russian Federation
State Forestry and Grassland Administration Engineering Technology Research Center of Korean Pine, Harbin, 150040, China

Доп.точки доступа:
Gao, F.; Peng, C.; Wang, H.; Nikolaevna, I.; Mikhaylovich, A.; Shen, H.; Yang, L.

/ J. Tumajer, J. Kaspar, H. Kuzelova [et al.] // Front. Plant Sci. - 2021. - Vol. 12. - Ст. 613643, DOI 10.3389/fpls.2021.613643 . - ISSN 1664-462X
Аннотация: Significant alterations of cambial activity might be expected due to climate warming, leading to growing season extension and higher growth rates especially in cold-limited forests. However, assessment of climate-change-driven trends in intra-annual wood formation suffers from the lack of direct observations with a timespan exceeding a few years. We used the Vaganov-Shashkin process-based model to: (i) simulate daily resolved numbers of cambial and differentiating cells; and (ii) develop chronologies of the onset and termination of specific phases of cambial phenology during 1961–2017. We also determined the dominant climatic factor limiting cambial activity for each day. To asses intra-annual model validity, we used 8 years of direct xylogenesis monitoring from the treeline region of the Krkonose Mts. (Czechia). The model exhibits high validity in case of spring phenological phases and a seasonal dynamics of tracheid production, but its precision declines for estimates of autumn phenological phases and growing season duration. The simulations reveal an increasing trend in the number of tracheids produced by cambium each year by 0.42 cells/year. Spring phenological phases (onset of cambial cell growth and tracheid enlargement) show significant shifts toward earlier occurrence in the year (for 0.28–0.34 days/year). In addition, there is a significant increase in simulated growth rates during entire growing season associated with the intra-annual redistribution of the dominant climatic controls over cambial activity. Results suggest that higher growth rates at treeline are driven by (i) temperature-stimulated intensification of spring cambial kinetics, and (ii) decoupling of summer growth rates from the limiting effect of low summer temperature due to higher frequency of climatically optimal days. Our results highlight that the cambial kinetics stimulation by increasing spring and summer temperatures and shifting spring phenology determine the recent growth trends of treeline ecosystems. Redistribution of individual climatic factors controlling cambial activity during the growing season questions the temporal stability of climatic signal of cold forest chronologies under ongoing climate change. © Copyright © 2021 Tumajer, Kaspar, Kuzelova, Shishov, Tychkov, Popkova, Vaganov and Treml.

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Держатели документа:
Department of Physical Geography and Geoecology, Faculty of Science, Charles University, Prague, Czech Republic
Institute of Botany and Landscape Ecology, University of Greifswald, Greifswald, Germany
Laboratory for Integral Studies of Forest Dynamics of Eurasia, Siberian Federal University, Krasnoyarsk, Russian Federation
Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Rectorate, Siberian Federal University, Krasnoyarsk, Russian Federation
Center for Forest Ecology and Productivity of the Russian Academy of Sciences, Moscow, Russian Federation

Доп.точки доступа:
Tumajer, J.; Kaspar, J.; Kuzelova, H.; Shishov, V. V.; Tychkov, I. I.; Popkova, M. I.; Vaganov, E. A.; Treml, V.

/ J. Tumajer, J. Kaspar, H. Kuzelova [et al.] // Front. Plant Sci. - 2021. - Vol. 12. - Ст. 613643, DOI 10.3389/fpls.2021.613643. - Cited References:83. - This study was funded by the Czech Science Foundation (19-138076S). In addition, JT was supported by the Alexander von Humboldt Research Fellowship and by Charles University (UNCE/HUM 018); VS, MP, and IT were supported by the Russian Science Foundation (14-14-00219P) and by the Russian Ministry of Science and Higher Education (FSRZ-2020-0010 and FSRZ-2020-0014) and EV was supported by the Russian Science Foundation (19-77-30015). . - ISSN 1664-462XРУБ Plant Sciences

Аннотация: Significant alterations of cambial activity might be expected due to climate warming, leading to growing season extension and higher growth rates especially in cold-limited forests. However, assessment of climate-change-driven trends in intra-annual wood formation suffers from the lack of direct observations with a timespan exceeding a few years. We used the Vaganov-Shashkin process-based model to: (i) simulate daily resolved numbers of cambial and differentiating cells; and (ii) develop chronologies of the onset and termination of specific phases of cambial phenology during 1961-2017. We also determined the dominant climatic factor limiting cambial activity for each day. To asses intra-annual model validity, we used 8 years of direct xylogenesis monitoring from the treeline region of the Krkonose Mts. (Czechia). The model exhibits high validity in case of spring phenological phases and a seasonal dynamics of tracheid production, but its precision declines for estimates of autumn phenological phases and growing season duration. The simulations reveal an increasing trend in the number of tracheids produced by cambium each year by 0.42 cells/year. Spring phenological phases (onset of cambial cell growth and tracheid enlargement) show significant shifts toward earlier occurrence in the year (for 0.28-0.34 days/year). In addition, there is a significant increase in simulated growth rates during entire growing season associated with the intra-annual redistribution of the dominant climatic controls over cambial activity. Results suggest that higher growth rates at treeline are driven by (i) temperature-stimulated intensification of spring cambial kinetics, and (ii) decoupling of summer growth rates from the limiting effect of low summer temperature due to higher frequency of climatically optimal days. Our results highlight that the cambial kinetics stimulation by increasing spring and summer temperatures and shifting spring phenology determine the recent growth trends of treeline ecosystems. Redistribution of individual climatic factors controlling cambial activity during the growing season questions the temporal stability of climatic signal of cold forest chronologies under ongoing climate change.

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Держатели документа:
Charles Univ Prague, Fac Sci, Dept Phys Geog & Geoecol, Prague, Czech Republic.
Ernst Moritz Arndt Univ Greifswald, Inst Bot & Landscape Ecol, Greifswald, Germany.
Siberian Fed Univ, Lab Integral Studies Forest Dynam Eurasia, Krasnoyarsk, Russia.
Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Ctr Forest Ecol & Prod, Moscow, Russia.

Доп.точки доступа:
Tumajer, Jan; Kaspar, Jakub; Kuzelova, Hana; Shishov, Vladimir V.; Tychkov, Ivan I.; Popkova, Margarita, I; Vaganov, Eugene A.; Treml, Vaclav; Shishov, Vladimir; Czech Science FoundationGrant Agency of the Czech Republic [19-138076S]; Alexander von Humboldt Research FellowshipAlexander von Humboldt Foundation; Charles University [UNCE/HUM 018]; Russian Science FoundationRussian Science Foundation (RSF) [19-77-30015, 14-14-00219P]; Russian Ministry of Science and Higher Education [FSRZ-2020-0010, FSRZ-2020-0014]

/ E. A. Tyutkova, I. A. Petrov, S. R. Loskutov // J. Therm. Anal. Calorim. - 2021, DOI 10.1007/s10973-021-10752-z. - Cited References:30 . - Article in press. - ISSN 1388-6150. - ISSN 1588-2926РУБ Thermodynamics + Chemistry, Analytical + Chemistry, Physical

Аннотация: We applied thermogravimetric analysis to ten successive growth rings of Siberian larch and the same number of mountain birch individuals sampled in the alpine forest-tundra ecotone of Kuznetsk Ala Tau mountain ridge to compare physical and chemical responses of the species wood to climate change. Our analysis of the correlation of the wood thermal parameters with air temperature and precipitation revealed that early and latewood cellulose and lignin in the birch were more sensitive to climatic changes as compared to the larch. June-August weather conditions appeared to largely control the chemical composition of the birch early and latewood. Air temperature had a marked influence during synthesis of both early and latewood cell walls, whereas precipitation influenced only latewood. Thermogravimetric analysis of growth rings formed in alpine forest-tundra proved to be an effective tool to study the influence of climatic and weather variability on lignin-carbohydrate complex of deciduous and conifer tree species.

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Держатели документа:
Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Lab Woody Plant Phys & Chem Biol, Akademdorodork 50-28, Krasnoyarsk, Russia.
Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Forest Monitoring Lab, Krasnoyarsk, Russia.

Доп.точки доступа:
Tyutkova, E. A.; Petrov, I. A.; Loskutov, S. R.

/ O. Shapchenkova, S. Loskutov, A. Aniskina [et al.] // Eur. J. Wood Wood Prod. - 2021, DOI 10.1007/s00107-021-01763-6. - Cited References:56. - The work was carried out as part of GINOP-2.3.315-2016-00038, "Further processing of wood and wood products based on green chemistry and technology, through creating modern research infrastructure" in the framework of the Szechenyi 2020 Program. The implementation of this project is supported by the European Union, co-financed by the European Regional Development Fund. . - Article in press. - ISSN 0018-3768. - ISSN 1436-736XРУБ Forestry + Materials Science, Paper & Wood

Аннотация: This paper presents a thermal characterization of hardwoods of Hungarian origin. The study covers the wood of the following tree species: sessile oak (Quercus petraea), beech (Fagus sylvatica), hornbeam (Carpinus betulus), black locust (Robiniapseudoacacia), lime (Tilia platyphyllos), ash (Fraxinus ornus), maple (Acer campestre), alder (Alnus glutinosa), and aspen (Populus tremula). Wood samples were subjected to differential scanning calorimetry and thermogravimetry in an air atmosphere at different heating rates of 10, 20, and 40 degrees C center dot min(-1). The activation energy was calculated using the Flynn-Wall-Ozawa method. Thermogravimetric analysis revealed that tree species differed considerably in the mass loss and the temperature of the maximum mass loss rate related to the thermal degradation of the main wood components and the oxidation of char mainly derived from lignin. Beech, hornbeam and ash were characterized by a high mass loss attributed to decomposition of hemicelluloses. The mass loss assigned to the thermal degradation of cellulose varied from 35.41% (ash wood) to 53.65% (alder wood). Sessile oak wood showed the greatest mass loss and the highest temperature of thermoxidation of residual lignin and char. Calorimetrically measured values of the exothermic effect of the wood thermal degradation were in the range 7.93-9.65 kJ g(-1). The average values of activation energy for the thermal degradation of carbohydrates and the thermoxidation of residual lignin and char were found to be 176.0 divided by 197.3 kJ mol(-1)and 196.4 divided by 319.5 kJ mol(-1), respectively.

WOS

Держатели документа:
Krasnoyarsk Sci Ctr SB RAS, VN Sukachev Inst Forest SB RAS, Fed Res Ctr, Krasnoyarsk, Russia.
Univ Sopron, Sopron, Hungary.

Доп.точки доступа:
Shapchenkova, Olga; Loskutov, Sergei; Aniskina, Antonina; Borcsok, Zoltan; Pasztory, Zoltan; Szechenyi 2020 Program [GINOP-2.3.315-2016-00038]; European UnionEuropean Commission; European Regional Development FundEuropean Commission

/ R. Khaydarov, O. Gapurova, M. Abdukhakimov [et al.] // Emerg. Mater. - 2022, DOI 10.1007/s42247-021-00330-2. - Cited References:31. - The SEM and TEM analysis was carried out in the SFU Joint Scientific Center under the support of the Ministry of Science and Higher Education of the Russian Federation (#FSRZ-2020-0011). . - Article in press. - ISSN 2522-5731. - ISSN 2522-574XРУБ Materials Science, Multidisciplinary

Аннотация: The growth of bacteria and fungi on a nanofiltration (NF) membrane is known to reduce its permeability and lifetime and increase overall energy use. Over the last decade, application of silver nanoparticles (AgNPs) has shown to present a strong potential in preventing biofouling of NF membrane processes. The paper deals with a novel facile method developed to in situ incorporate nanosilver stabilized with the polyhexamethylene biguanide hydrochloride (PHMB) onto the commercial NF membrane surface. The scanning electron microscopy (SEM) investigations confirmed a uniform distribution of AgNPs on the surface of NF membrane although AgNPs tend to agglomerate into nano-sized colloidal clusters. Our results showed that AgNPs had little impact on the performance of the NF membrane, including salt rejection and water permeation properties. To evaluate the antibacterial properties of nanocomposite membranes, a "time-kill" analysis, a microbiological technique for measuring the change in a population of microorganisms under the impact of a specific sample, has been used against representatives of Gram-positive and Gram-negative bacteria. Inductively coupled mass spectrometry (ICP-MS) was used to study kinetics of Ag release from modified NF membrane. Leaching rates of Ag were low that will possibly result in long-established antimicrobial and antifungal properties. The present research offers a potential for its further use as a new type of modified NF membrane mitigating biofouling.

WOS

Держатели документа:
Acad Sci Uzbek, Inst Nucl Phys, 1 Xuroson, Tashkent 100214, Uzbekistan.
JSS Acad Higher Educ & Res, Dept Pharmacol, JSS Coll Pharm, Ooty 643001, Tamil Nadu, India.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 5038, Russia.
Fed Res Ctr KSC SB RAS, Sukachev Inst Forest, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Khaydarov, Renat; Gapurova, Olga; Abdukhakimov, Murodjon; Sadikov, Ilkham; Garipov, Ilnur; Krishnamurthy, Praveen Thaggikuppe; Zharkov, Sergey M.; Zeer, Galina M.; Abolentseva, Polina A.; Prudnikova, Svetlana, V; Evgrafova, Svetlana Y.; SFU Joint Scientific Center; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0011]

[Текст] / Е. А. Петрунина, С. Р. Лоскутов, Т. В. Рязанова, А. А. Анискина [и др.] // Сибирский лесной журнал. - 2022. - № 4. - С. 35-49, DOI 10.15372/SJFS20220405 . - ISSN 2311-1410

ГРНТИ

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Аннотация: Исследование посвящено термическому анализу и флэш-пиролизу коры лиственницы сибирской ( Larix sibirica Ledeb.) и сосны обыкновенной ( Pinus sylvestris L.) как многотоннажного отхода переработки древесины этих пород. С помощью методов термогравиметрии (ТГ/ДТГ) и дифференциальной сканирующей калориметрии (ДСК) выявлен ряд закономерностей термического разложения коры. По четвертым производным контура ДТГ установлены различия «фракционности» потери массы при нагреве коры в условиях термогравиметрического теста. На основе данных ТГ/ДТГ проведен анализ кинетики термодеструкции с использованием изоконверсионного метода Озавы - Флинна - Уолла (ОФУ). Полученные зависимости энергии активации ( Е а) термического разложения коры от степени конверсии использованы для расчета термодинамических параметров Δ H , Δ G и Δ S этого процесса, используемых при проектировании и масштабировании технологий термической обработки и пиролиза коры для производства технических продуктов с повышенной добавленной стоимостью. Средние значения Еа, Δ H , Δ G и Δ S составляют 206.7, 201.1, 248.7 кДж/моль и -78.0 Дж/(моль ∙ К) для коры лиственницы (КЛ) и 235.3, 229.7, 310.6 кДж/моль и -129.4 Дж/(моль ∙ К) для коры сосны (КС). С помощью метода хромато-масс-спектрометрии (ГХ/МС) по технологии парофазного пробоотбора установлен состав летучих соединений коры, которые представлены моно-, сескви-, дитерпенами и кислородсодержащими углеводородами. Идентифицировано 37 соединений КЛ и 41 соединение КС. По результатам ТГ и ДСК охарактеризована термическая устойчивость КЛ и КС относительно графита; рассчитаны парциальные теплоты окислительной термодеструкции для стадий термического разложения, свидетельствующие о различии термических параметров коры. Экзотермические эффекты термоокислительной деструкции равны 15.1 и 15.9 кДж/г для КЛ и КС соответственно. В результате аналитического флэш- пиролиза идентифицировано 55 продуктов пиролиза КЛ и КС с суммарной площадью идентифицированных пиков 77.6 и 89.7 % соответственно. Предложены варианты использования результатов исследования.
The study focuses on the thermal analysis and flash pyrolysis of bark of Siberian larch ( Larix sibirica Ledeb.) and Scots pine ( Pinus sylvestris L.). Using thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC), a number of patterns of thermal decomposition of bark were established. The fourth derivatives of the DTG contours revealed differences in the “fractionality” of mass loss during heating of the bark samples. The thermal decomposition kinetics of bark was investigated using the Ozawa - Flynn - Wall isoconversion method. The obtained dependence of the activation energy ( E a) on the conversion degree was used to calculate the thermodynamic parameters (Δ H , Δ G and Δ S ) of thermal decomposition. The mean values of E a, Δ H , Δ G and Δ S were 206.7, 201.1, 248.7 kJ/mol and -78.0 J/(mol×K) for larch bark (LB) and 235.3, 229.7, 310.6 kJ/mol and -129.4 J/(mol×K) for pine bark (PB). The composition of mono-, sesqui-, diterpenes and oxygen-containing hydrocarbons of bark was determined by headspace GC/MS analysis. 37 and 41 volatile organic compounds were identified for LB and PB, respectively. The thermal stability of LB and PB was characterized using recalcitrant indices calculated from TG and DSC data. Integral values of exothermic effects of thermo-oxidative degradation were 15.1 kJ/g for LB and 15.9 kJ/g for PB. 55 flash pyrolysis products were identified, which accounted for 77.6 % of the total peak area for LB and 89.7 % for PB.

РИНЦ

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

Доп.точки доступа:
Лоскутов, Сергей Реджинальдович; Loskutov Sergey Redzhinal'dovich; Рязанова, Т.В.; Анискина, Антонина Александровна; Aniskina Antonina Alexandrovna; Пермякова, Галина Васильевна; Permyakova Galina Vasil'yevna; Стасова, Виктория Викторовна; Stasova, Victoriya Victorovna