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

[Text] / L. V. Mukhortova [et al.] // Biol. Bull. - 2009. - Vol. 36, Is. 1. - P58-65, DOI 10.1134/S1062359009010099. - Cited References: 42. - This study was supported by the Ministry of Education and Science of the Russian Federation and the Civic Research and Development Foundation, United States (grant RUX0-002-KR-06); the program "Basic Research and Higher Education" (project no. BRHE Y4-B-02-06); the German Academic Exchange Service (DAAD) (grant A/05/05326); and the Russian Foundation for Basic Research (project nos. 06-04-90596-BNTS-a, 07-04-00515-a, and 07-04-00293-a). . - 8. - ISSN 1062-3590РУБ Biology

Аннотация: Changes in the composition of wood organic matter in dead-standing spruce and larch trees depending on the period after their death have been studied in the north of Central Siberia. The period after tree death has been estimated by means of cross-dating. The results show that changes in the composition of wood organic matter in 63% of cases are contingent on tree species. Wood decomposition in dead-standing trees is accompanied by an increase in the contents of alkali-soluble organic compounds. Lignin oxidation in larch begins approximately 80 years after tree death, whereas its transformation in spruce begins not earlier than after 100 years. In the forest-tundra of Central Siberia, the rate of wood organic matter transformation in dead-standing trees is one to two orders of magnitude lower than in fallen wood, which accounts for their role as a long-term store of carbon and mineral elements in these ecosystems.

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Держатели документа:
[Mukhortova, L. V.
Kirdyanov, A. V.] Russian Acad Sci, Akademgorodok, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
[Myglan, V. S.] Siberian Fed Univ, Svobodnyi pr 79, Krasnoyarsk 660041, Russia
[Mukhortova, L. V.
Kirdyanov, A. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Myglan, V. S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Guggenberger, G.] Univ Halle Wittenberg, Inst Agrar & Ernahrungswissensch, D-06108 Halle, Germany

Доп.точки доступа:
Mukhortova, L.V.; Kirdyanov, A.V.; Myglan, V.S.; Guggenberger, G...; Ministry of Education and Science of the Russian Federation; Civic Research and Development Foundation, United States [RUX0-002-KR-06]; Basic Research and Higher Education [BRHE Y4-B-02-06]; German Academic Exchange Service (DAAD) [A/05/05326]; Russian Foundation for Basic Research [06-04-90596-BNTS-a, 07-04-00515-a, 07-04-00293-a]

/ E. A. Tyutkova, S. R. Loskutov, N. P. Shestakov // Wood Mater. Sci. Eng. - 2020. - Vol. 15, Is. 4. - P205-212, DOI 10.1080/17480272.2018.1562495. - Cited References:33 . - ISSN 1748-0272. - ISSN 1748-0280РУБ Materials Science, Paper & Wood

Аннотация: This paper presents the results of FTIR spectroscopy of the 1988-1998 annual ring early and latewood of Larix gmelinii (Rupr.) Rupr.) found along the polar treeline (Taimyr Peninsula, 70 degrees 52' 53 '' N, 102 degrees 58'26 '' E). We analyzed samples of early and latewood to identify absorption bands of groups of wood components, as well as the bands that characterized the interactions among the components. We studied bound water spectral characteristics for wood formed in different years. An analysis of the correlation between the values of spectral absorption bands and mean monthly air temperature and precipitation showed that May-August weather had the greatest influence on the synthesis of the main polymeric components of early and latewood. Air temperature had a considerable effect on polymer composition of cell walls forming in early and latewood, whereas precipitation influenced only earlywood. FTIR spectroscopy is a promising tool to develop information on the biochemical composition of the walls of early and late tracheids of annual rings and on weather and climate influences on cell wall synthesis.

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

Доп.точки доступа:
Tyutkova, E. A.; Loskutov, S. R.; Shestakov, N. P.