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

[Text] / T. N. Otnyukova, O. P. Sekretenko // Biol. Bull. - 2008. - Vol. 35, Is. 4. - P411-421, DOI 10.1134/S1062359008040146. - Cited References: 48 . - 11. - ISSN 1062-3590РУБ Biology

Аннотация: The abundance distribution of different ecological groups of lichens depending on bark pH has been studied on 1- to 24-year shoots of Siberian fir in the mountains of southern Siberia. Along with acidophytic lichens commonly found on the Siberian fir (Usnea sp., Bryoria sp., etc.), its young shoots are also colonized by nitrophytic species (Physcia tenella, Melanelia exasperatula, etc.), which is evidence for the increasing pH of shoot bark. The proportion of thalli of nitrophytic lichen species shows a significant positive correlation with the pH of the upper (dusted) bark layer and is greater in the Eastern Sayan (at bark pH averaging 5.4) than in the Western Sayan (pH 4.7). The trends revealed in this study may be used for indication of pollution and ecological monitoring of forest ecosystems.

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Держатели документа:
[Otnyukova, T. N.
Sekretenko, O. P.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
[Otnyukova, T. N.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Otnyukova, T.N.; Sekretenko, O.P.

[Text] / A. G. Bunn [et al.] // Environ. Res. Lett. - 2013. - Vol. 8, Is. 3. - Ст. 35034, DOI 10.1088/1748-9326/8/3/035034. - Cited References: 36. - We thank the Northern Eurasian Earth Science Partnership Initiative for support via a grant from NASA-LCLUC-NEESPI (NNX09AK58G) to MKH and AGB and from NSF 0612341 and NSF 1044417 to AGB. VVS was supported by the Fulbright Scholar Program. Figure 1 was produced by Randal Bernhardt of the WWU Geography Department. . - 8. - ISSN 1748-9326РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Аннотация: Different methods have been developed for measuring carbon stocks and fluxes in the northern high latitudes, ranging from intensively measured small plots to space-based methods that use reflectance data to drive production efficiency models. The field of dendroecology has used samples of tree growth from radial increments to quantify long-term variability in ecosystem productivity, but these have very limited spatial domains. Since the cambium material in tree cores is itself a product of photosynthesis in the canopy, it would be ideal to link these two approaches. We examine the associations between the normalized differenced vegetation index (NDVI) and tree growth using 19 pairs of tree-ring widths (TRW) and maximum latewood density (MXD) across much of Siberia. We find consistent correlations between NDVI and both measures of tree growth and no systematic difference between MXD and TRW. At the regional level we note strong correspondence between the first principal component of tree growth and NDVI for MXD and TRW in a temperature-limited bioregion, indicating that canopy reflectance and cambial production are broadly linked. Using a network of 21 TRW chronologies from south of Lake Baikal, we find a similarly strong regional correspondence with NDVI in a markedly drier region. We show that tree growth is dominated by variation at decadal and multidecadal time periods, which the satellite record is incapable of recording given its relatively short record.

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Держатели документа:
[Bunn, Andrew G.] Western Washington Univ, Dept Environm Sci, Huxley Coll, Bellingham, WA 98225 USA
[Hughes, Malcolm K.
Losleben, Mark] Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
[Kirdyanov, Alexander V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia
[Shishov, Vladimir V.
Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk, Russia
[Berner, Logan T.] Woods Hole Res Ctr, Falmouth, MA USA
[Oltchev, Alexander] RAS, Severtsov Inst Ecol & Evolut, Moscow 117901, Russia

Доп.точки доступа:
Bunn, A.G.; Hughes, M.K.; Kirdyanov, Alexander V.; Кирдянов, Александр Викторович; Losleben, M.; Shishov, V.V.; Berner, L.T.; Oltchev, A.; Vaganov, E.A.; Northern Eurasian Earth Science Partnership Initiative via NASA-LCLUC-NEESPI [NNX09AK58G]; NSF [0612341, 1044417]; Fulbright Scholar Program

[Text] / M. . Saurer [et al.] // Geophys. Res. Lett. - 2002. - Vol. 29, Is. 15. - Ст. 1296, DOI 10.1029/2001GL013739. - Cited References: 23 . - 4. - ISSN 0094-8276РУБ Geosciences, Multidisciplinary

Аннотация: [1] The oxygen isotope ratio of ice cores and sea-sediments is an extremely useful source of information on long-term climatic changes. A similar approach has been applied to the oxygen isotope ratio of tree rings to enable a pattern-based reconstruction of the isotope variations on the continents. We present an oxygen isotope map for northern Eurasia spanning from Norway to Siberia, that reflects the isotope distribution in the late 19th century, and compare it with an equivalent map for the present-day situation. The average isotope values of 130 trees show a large east-to-west gradient and are highly correlated with the isotope distribution of precipitation. Surprisingly, the (18)O/(16)O ratio of the wood has been decreasing in the interior of the continent since the late 19th century, in contrast to the strong temperature increase recorded by meteorological data. From this isotope trend over time a change in the seasonality of precipitation can be inferred.

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Держатели документа:
Paul Scherrer Inst, CH-5232 Villigen, Switzerland
Swiss Fed Res Inst WSL, CH-8903 Birmensdorf, Switzerland
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Ekaterinburg 620219, Russia

Доп.точки доступа:
Saurer, M...; Schweingruber, F...; Vaganov, E.A.; Shiyatov, S.G.; Siegwolf, R...

[Text] / K. R. Briffa [et al.] // Holocene. - 2002. - Vol. 12, Is. 6. - P737-757, DOI 10.1191/0959683602hl587rp. - Cited References: 26 . - 21. - ISSN 0959-6836РУБ Geography, Physical + Geosciences, Multidisciplinary

Аннотация: A detailed description is presented of the statistical patterns of climate forcing of tree growth (annual maximum latewood density and ring-width time series), across a network of 387 specially selected conifer sites that circle the extra-tropical Northern Hemisphere, The influence of summer temperature dominates growth. A mean April-September response is optimum for describing the major forcing signal over the whole densitometric network, though a shorter June-July season is more relevant in central and eastern Siberia. The ring-width chronologies also have a shorter optimum (June-August) seasonal signal, but this is much weaker than the density signal. The association between tree-ring density and precipitation variability (as measured by partial correlations to account for the correlation between temperature and precipitation) is considerably weaker than with temperature. The ring-width response to precipitation is dominated by 'noise' and local site influences, though a negative response to winter precipitation in northern Siberia is consistent A with the suggestion of an influence of delayed snowmelt. Average correlations with winter temperatures are small for all regions and correlations with annual temperatures are positive only because of the strong link with summer temperatures. Reconstructions of summer temperature based on composite regional density chronologies for nine areas are presented. Five regions (northwestern North America, NWNA; eastern and central Canada, ECCA; northern Europe. NEUR; northern Siberia, NSIB; and eastern Siberia, ESIB) constitute an arbitrary 'northern' division of the network, while the four other regions (western North America, WNA; southern Europe, SEUR; central Asia, CAS and the Tibetan Plateau, TIBP) make up the 'southern' part, We also present two larger composite regional reconstructions comprising the data from the five higher-latitude (HILAT) and four lower-latitude (LOLAT) areas respectively: and a single series made up of data from all regions (ALL), which is highly correlated with Northern Hemisphere mean summer temperature. We calculate time-dependent uncertainty ranges for each of these reconstructions, though they are not intended to represent long timescales of temperature variability (>100 years) because the technique used to assemble the site chronologies precludes this. Finally, we examine in more detail the reduced sensitivity in the tree-growth data to decadal-timescale summer-temperature trends during the last 50 years, identified in earlier published work.

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Держатели документа:
Univ E Anglia, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland
Russian Acad Sci, Ural Div, Inst Plant & Anim Ecol, Ekaterinburg 620219, Russia
Russian Acad Sci, Siberian Div, Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Briffa, K.R.; Osborn, T.J.; Schweingruber, F.H.; Jones, P.D.; Shiyatov, S.G.; Vaganov, E.A.

[Text] / M. M. Naurzbaev, E. A. Vaganov // J. Geophys. Res.-Atmos. - 2000. - Vol. 105, Is. D6. - P7317-7326, DOI 10.1029/1999JD901059. - Cited References: 40 . - 10. - ISSN 2169-897XРУБ Meteorology & Atmospheric Sciences

Аннотация: Regional tree ring chronology with extension 2209 years (from 212 B.C. till 1996 A.D.) was built for east Taymir and Putoran according to wood of living trees, well- preserved remains of dead trees, and subfossil wood from alluvial bank deposits by the cross-dating method. In addition, the "floating" tree ring width chronology for the period of Holocene optimum (3300-2600 B.C.) was built with extention 685 years and supported by several radiocarbon dates. High values of synchrony and correlation of individual tree ring series show a prevailing effect of one external factor on radial tree growth change in the studied region of the Siberian subarctic. It was established that the main factors of growth variability are the early summer and annual temperature, which explain up to 70% of tree growth rate variability. Cyclic components stable for two millennia were revealed at analysis of the tree ring chronology: double secular (similar to 180 years), secular (78-90 years), and intrasecular (44, 28, 11, and 6.7-6.9 years) variations. Models for reconstruction of the early summer and annual air temperature were obtained according to tree ring variability. Temperature dynamics in the eastern part of Taymir for the last two millenia agree well with temperature variations in the Northern Hemisphere obtained according to other indirect sources. The warming of the middle of the twentieth century is not extraordinary. The warming at the end of the first and beginning of the second millennia ("Medieval Warm Period") was longer in time and closer in amplitude.

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Держатели документа:
Taymir Biospher Reserve, Khatanga, Russia
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Naurzbaev, M.M.; Vaganov, E.A.

/ A. V. Makhnykina, A. S. Prokushkin, O. V. Menyailo [et al.] // Russ. J. Ecol. - 2020. - Vol. 51, Is. 1. - P46-56, DOI 10.1134/S1067413620010063. - Cited References:35. - This study was supported by the Russian Foundation for Basic Research, project nos. 17-05-01257 and 18-34-00736. . - ISSN 1067-4136. - ISSN 1608-3334РУБ Ecology

Аннотация: Soil CO2 emission is one of the most important components of the global carbon cycle. This study analyzes the seasonal dynamics of soil emission for various land cover types in the middle taiga subzone of central Siberia during five growing seasons. It is shown that, throughout a vast area covered by pine forests and their derivatives formed on sandy soils, seasonal CO2 emission values are determined primarily by the moisture conditions and only secondarily by the temperature regime and ecosystem type. The effect of the forest type is manifested only under the most favorable moisture conditions. A new approach is proposed: divide the growing season into dry and moist periods depending on the threshold soil moisture for areas with different vegetation types.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Makhnykina, A. V.; Prokushkin, A. S.; Menyailo, O. V.; Verkhovets, S. V.; Tychkov, I. I.; Urban, A. V.; Rubtsov, A. V.; Koshurnikova, N. N.; Vaganov, E. A.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [17-05-01257, 18-34-00736]