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

/ A. Arzac [et al.] // Dendrochronologia. - 2018. - Vol. 49. - P1-8, DOI 10.1016/j.dendro.2018.02.007 . - ISSN 1125-7865
Аннотация: Climate affects wood formation with consequences for the functioning and survival of trees. Since tree-rings tissues (i.e., earlywood and latewood) are formed at different time in the season, the impact of climate change might differently affect their functions. In this study, we combine quantitative tracheid anatomy with the Vaganov-Shashkin growth model (VS-model) to investigate how summer drought affected the annual ring structure of Pinus sylvestris L. from a forest-steppe zone in Southern Siberia. In particular, we used climate-growth relationships over a 50-year period to identify the timing of climatic signal of early-, transition-, and late-wood tracheid's diameters (DEW, DTW and DLW). Corresponding daily growth rates (Gr) obtained by the VS-model were applied to calculate the changes in the width of the relative tree-ring sectors considering different levels of aridity. Results indicate that tracheid size is sensitive to drought with temporal shifts among the climatic signal of DEW (in May), DTW (June) and DLW (July). A comparison of modeled daily-growth rate cumulated over the climatic window of each ring sector and grouped by years with different level of aridity, indicated that a release of summer drought mostly affected the widths of the transition (+28.1%) and (+48.6%) latewood sectors, thus matching observations performed on the same cores. These results suggest that current changes in climate seasonality, as occurring in the selected area, are positively impacting both the hydraulic efficiency (by increasing the diameter of the earlywood cells) and the latewood width of the wood produced in the area. © 2018 Elsevier GmbH

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Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
Khakass Technical Institute, Siberian Federal University, 27 Shchetinkina St., Abakan, Russian Federation
Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zuercherstrasse 111, Birmensdorf, Switzerland
V. N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Arzac, A.; Babushkina, E. A.; Fonti, P.; Slobodchikova, V.; Sviderskaya, I. V.; Vaganov, E. A.

/ M. I. Popkova [et al.] // Front. Plant Sci. - 2018. - Vol. 9. - Ст. 1144, DOI 10.3389/fpls.2018.01144. - Cited References:65. - The work was supported by the Russian Science Foundation (project #14-14-00219 P for simulation approach), the Le Studium/Marie Sklodowska-Curie research fellowship, the State assignment "Science of Future" (project #5.3508.2017/4.6 for data analysis), the Swiss National Science Foundation projects (LOTFOR no. 150205 and the International short visit no. IZK0Z2_16719), as well as the Russian Foundation for Basic Research (project #17-04-00315 for sampling and measurements; project #17-04-00610 for xylogenesis sampling and data; project #18-34-00530 for time-assignment procedure). . - ISSN 1664-462XРУБ Plant Sciences

Аннотация: Wood formation allows trees to adjust in a changing climate. Understanding what determine its adjustment is crucial to evaluate impacts of climatic changes on trees and forests growth. Despite efforts to characterize wood formation, little is known on its impact on the xylem cellular structure. In this study we apply the Vaganov-Shashkin model to generate synthetic tracheidograms and verify its use to investigate the formation of intra-annual density fluctuations (IADF), one of the most frequent climate tree-ring markers in drought-exposed sites. Results indicate that the model can produce realistic tracheidograms, except for narrow rings (< 1 mm), when cambial activity stops due to an excess of drought or a lack of growth vigor. These observations suggest that IADFs are caused by a release of drought limitation to cells formation in the first half of the growing season, but that narrow rings are indicators of an even more extreme and persistent water stress. Taking the example of IADFs formation, this study demonstrated that the Vaganov-Shashkin model is a useful tool to study the climatic impact on tree-ring structures. The ability to produce synthetic tracheidogram represents an unavoidable step to link climate to tree growth and xylem functioning under future scenarios.

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Держатели документа:
Siberian Fed Univ, Dept Math Methods & Informat Technol, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
SB RAS, VN Sukachev Inst Forest, Krasnoyarsk, Russia.
LE STUDIUM Loire Valley Inst Adv Studies, Orleans, France.
Siberian Fed Univ, Khakassia Tech Inst, Abakan, Russia.
Univ Quebec Chicoutimi, Dept Sci Fondamentales, Chicoutimi, PQ, Canada.
Chinese Acad Sci, Key Lab Vegetat Restorat & Management Degraded Ec, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou, Guangdong, Peoples R China.
Siberian Fed Univ, Inst Ecol & Geog, Krasnoyarsk, Russia.
WSL Swiss Fed Res Inst, Landscape Dynam, Birmensdorf, Switzerland.

Доп.точки доступа:
Popkova, Margarita, I; Vaganov, Eugene A.; Shishov, Vladimir V.; Babushkina, Elena A.; Rossi, Sergio; Fonti, Marina, V; Fonti, Patrick; Russian Science Foundation [14-14-00219 P]; Le Studium/Marie Sklodowska-Curie research fellowship; State assignment "Science of Future" [5.3508.2017/4.6]; Swiss National Science Foundation (LOTFOR) [150205]; Swiss National Science Foundation [IZK0Z2_16719]; Russian Foundation for Basic Research [17-04-00315, 17-04-00610, 18-34-00530]

/ 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.

/ P. Dyachuk, A. Arzac, P. Peresunko [et al.] // Dendrochronologia. - 2020. - Vol. 60. - Ст. 125687, DOI 10.1016/j.dendro.2020.125687 . - ISSN 1125-7865
Аннотация: Quantitative wood anatomy (QWA) is a growing field of dendrochronology that allows obtaining a large number of parameters as the number, size and spatial arrangement of cellular elements, elements that highlight the adjustments of trees to their environment. In this work, we presented the free/libre open-source software AutoCellRow (ACR), a ready-to-use tool for automatic QWA in conifers. The ACR analyzes radial files of cells on cross-sections views of tree rings and provides automatic measurements of different cell parameters (e.g., lumen radial diameter, double cell wall thickness and cell radial diameter) for each cell along the selected radial file. The ACR measurements are based on high performed image analysis of xylem cells. The accuracy of the software measurements was tested in cross-sections of five conifer species from a semi-arid area of southern Siberia, and compared with measurements obtained by a semiautomatic tool. Our results suggested high accuracy in the ACR cell traits measurements, facilitating and speeding the analysis of quantitative wood anatomy in conifers over radial files of cells. © 2020 Elsevier GmbH

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Держатели документа:
Siberian Federal University, 79 Svobodny pr, Krasnoyarsk, 660041, Russian Federation
V. N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Khakass Technical Institute, Siberian Federal University, 27 Shchetinkina St, Abakan, 655017, Russian Federation
Le Studium Loire Valley Institute for Advanced Studies, Orleans, France

Доп.точки доступа:
Dyachuk, P.; Arzac, A.; Peresunko, P.; Videnin, S.; Ilyin, V.; Assaulianov, R.; Babushkina, E. A.; Zhirnova, D.; Belokopytova, L.; Vaganov, E. A.; Shishov, V. V.

/ P. Dyachuk, A. Arzac, P. Peresunko [et al.] // Dendrochronologia. - 2020. - Vol. 60. - Ст. 125687, DOI 10.1016/j.dendro.2020.125687. - Cited References:22. - This work was carried out on the basis of the Laboratory for integral studies of forest dynamics of Eurasia"of the Siberian Federal University [FSRZ-2020-0014], with financial support from the Ministry of Education and Science of the Russian Federation [Project 5.3508.2017/4.6, software development] and the Russian Science Foundation [Grant18-74-10048, software testing and upgrade, experiment design and paper writing]. VS appreciates the support of the Russian Science Foundation [Grant 18-14-00072, data analysis] and LE STUDIUM/Marie Skladowska-Curie Research Fellowship. . - ISSN 1125-7865. - ISSN 1612-0051РУБ Forestry + Geography, Physical

Аннотация: Quantitative wood anatomy (QWA) is a growing field of dendrochronology that allows obtaining a large number of parameters as the number, size and spatial arrangement of cellular elements, elements that highlight the adjustments of trees to their environment. In this work, we presented the free/libre open-source software AutoCellRow (ACR), a ready-to-use tool for automatic QWA in conifers. The ACR analyzes radial files of cells on cross-sections views of tree rings and provides automatic measurements of different cell parameters (e.g., lumen radial diameter, double cell wall thickness and cell radial diameter) for each cell along the selected radial file. The ACR measurements are based on high performed image analysis of xylem cells. The accuracy of the software measurements was tested in cross-sections of five conifer species from a semi-arid area of southern Siberia, and compared with measurements obtained by a semiautomatic tool. Our results suggested high accuracy in the ACR cell traits measurements, facilitating and speeding the analysis of quantitative wood anatomy in conifers over radial files of cells.

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Держатели документа:
Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia.
Siberian Fed Univ, Khakass Tech Inst, 27 Shchetinkina St, Abakan 655017, Russia.
Le Studium Loire Valley Inst Adv Studies, Orleans, France.

Доп.точки доступа:
Dyachuk, Petr; Arzac, Alberto; Peresunko, Pavel; Videnin, Sergey; Ilyin, Victor; Assaulianov, Roman; Babushkina, Elena A.; Zhirnova, Dina; Belokopytova, Liliana; Vaganov, Eugene A.; Shishov, Vladimir V.; Ministry of Education and Science of the Russian FederationMinistry of Education and Science, Russian Federation [5.3508.2017/4.6]; Russian Science FoundationRussian Science Foundation (RSF) [18-74-10048, 18-14-00072]; LE STUDIUM/Marie Skladowska-Curie Research Fellowship