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

[Text] / J. . Heintzenberg [et al.] // Tellus Ser. B-Chem. Phys. Meteorol. - 2008. - Vol. 60, Is. 2. - P276-285, DOI 10.1111/j.1600-0889.2007.00335.x. - Cited References: 43 . - 10. - ISSN 0280-6509РУБ Meteorology & Atmospheric Sciences

Аннотация: This report describes a unique setup for aerosol measurements at the new long-term Tall Tower monitoring facility near Zotino, Siberia (ZOTTO). Through two inlets at 50 and 300 m aerosol particle number size distributions are measured since September 2006 in the size range 15-835 nanometer dry diameter. Until the end of May 2007 total number (N(300)) concentrations at 300 m height ranged between 400 cm(-3) (5%) and 4000 cm(-3) (95%) with a median of 1200 cm(-3), which is rather high for a nearly uninhabited boreal forest region during the low productivity period of the year. Fitting 1-h average distributions with a maximum of four lognormal functions yielded frequent ultrafine modes below 20 nm at 50 m height than at 300 m, whereas the latter height more frequently showed an aged nucleation mode near 30 nm. The positions of Aitken (approximate to 80 nm) and accumulation modes (approximate to 210 nm) were very similar at both inlet heights, the very sharp latter one being the most frequent of all modes. The encouraging first results let us expect exciting new findings during the summer period with frequent forest fires and secondary particle sources from vegetation emissions.

WOS,
Scopus,
Полный текст

Держатели документа:
[Heintzenberg, Jost
Birmili, Wolfram
Theiss, Detlef] Leibniz Inst Tropospher Res, D-04318 Leipzig, Germany
[Kisilyakhov, Yegor] Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Heintzenberg, J...; Birmili, W...; Theiss, D...; Kisilyakhov, Y...

[Text] / G. F. Antonova, V. V. Stasova, T. N. Varaksina // Russ. J. Plant Physiol. - 2009. - Vol. 56, Is. 2. - P190-199, DOI 10.1134/S1021443709020071. - Cited References: 30. - This work was supported by the Russian Foundation for Basic Research, project no. 06-04-49501. . - 10. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Changes in the levels of ascorbic acid (AA), its oxidized form, dehydroascorbic acid (DHA), and uronic acids as initial precursors for the AA synthesis were studied as related to the degree of xylem and phloem cell development in the course of early and late wood formation in the trunks of Scots pine (Pinus sylvestris L.). The cells of mature and conducting phloem, cambial zone, differently developed cells in the zones of cell enlargement and maturation were obtained by successive scraping tissue layers from trunk segments of 20-25-year-old trees; tissue identification was checked anatomically and histochemically. The contents of compounds tested were calculated per dry weight and per cell basis. We found great differences in the contents of AA and DHA and also in their ratio in dependence of the wood type developing in the pine trunks during growth period and on the stage of differentiation of xylem and phloem cells. Changes in the AA content during xylem cell differentiation were accompanied by changes in the content of uronic acids. The amounts of AA, DHA, and uronic acids were the highest at the stage of early lignification and reduced with tracheid maturation. The AA to DHA ratio changed differently in the course of early and late xylem lignification. It reduced from the start of lignification to the formation of early mature xylem and, in contrast, increased in mature late wood; this indicates a difference in the level of redox processes in these tissues.

Полный текст,
Scopushttp://apps.webofknowledge.com/summary.do?SID=S2Zcy23YkaM7aZ9JFpF&product=WOS&qid=1&search_mode=GeneralSearch

Держатели документа:
[Antonova, G. F.
Stasova, V. V.
Varaksina, T. N.] Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Akad Gorodok, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Antonova, G.F.; Stasova, V.V.; Varaksina, T.N.; Russian Foundation for Basic Research [06-04-49501]

[Text] / A. Z. Shvidenko, D. G. Schepaschenko // Contemp. Probl. Ecol. - 2013. - Vol. 6, Is. 7. - P683-692, DOI 10.1134/S199542551307010X. - Cited References: 45 . - 10. - ISSN 1995-4255РУБ Ecology

Аннотация: The effect of climate change on the distribution, intensity, and transforming role of wild fires is considered. A general overview of the current wild fire regimes (WRs) and impacts on forest ecosystems and environment is provided. One distinctive feature of WRs is the increasing frequency of disastrous wild fires. The application of various remote sensing instruments has shown that the average vegetation wild fire area in Russia for 1998-2010 accounted for 8.2 +/- 0.8 x 10(6) ha, with about two-thirds of wildfires occurring on forest lands and half on the forested lands. The average annual fire carbon balance during the above period was 121 +/- 28 Tg C yr(-1), including 92 +/- 18 Tg C yr(-1) emitted from the forested land. The forecasts based on the General Circulation Models suggest the dramatic acceleration of fire regimes by the end of the 21st century. Taking into account the increase in the dryness of the climate and the thawing of permafrost, this will likely lead to a dramatic loss of forested area and the impoverishment of the forest cover over a major part of the forest zone. A transition to adaptive forestry would allow a substantial decrease of the expected losses. This paper takes a brief look at the general principals of adapting forest fire protection system to climate change, which is considered an integral part of the transition to sustainable forest management in Russia.

WOS,
Scopus,
Полный текст

Держатели документа:
[Shvidenko, A. Z.
Schepaschenko, D. G.] Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria
[Shvidenko, A. Z.] Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660041, Russia
[Schepaschenko, D. G.] Moscow State Forest Univ, Mytishchi 141005, Moscow Oblast, Russia
ИЛ СО РАН

Доп.точки доступа:
Shvidenko, A.Z.; Schepaschenko, D.G.