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

/ E. -D. Schulze, N. N. Vygodskaya, N. M. Tchebakova, E. I. Parfenova // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 421-428

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

Доп.точки доступа:
Vygodskaya, N.N.; Выгодская Н.Н.; Tchebakova, Nadezhda Mikhailovna; Чебакова, Надежда Михайловна; Parfenova, Elena Ivanovna; Парфенова, Елена Ивановна; Шульце Е-Д

/ M. I. Bird, Y. N. Kalaschnikov // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 631-641
Аннотация: We present soil organic carbon (SOC) inventories and carbon isotope compositions from over 900 samples collected in areas of minimally disturbed mature vegetation on freely drained soils (excluding peatlands) on a 1000 km transect along the Yennisey River, central Siberia. Carbon inventories over 0-30 cm depth range widely from 1.71 to 7.05 kg m(-2). While an effect of changing climate or vegetation along the transect cannot be ruled out, the observed differences in SOC inventories are largely the result of variations in mineral soil texture, with inventories in fine-textured soils being approximately double those in coarse-textured soils. The delta(13)C values of SOC in the 0-5 cm interval ranged from -26.3 to -28.0parts per thousand, with delta(13)C values for the 5-30 cm interval being 0.9 +/- 0.8parts per thousand (1sigma) enriched in C-13 relative to the 0-5 cm samples. The average delta(13)C value for the 0-5 cm interval for all samples was -27.1 +/- 0.6parts per thousand (1sigma) and for the full 0-30 cm interval the average was -26.5 +/- 0.5parts per thousand (1sigma). In general, delta(13)C values were higher in coarse-textured soils and lower in fine-textured soils. The results of detailed sampling of soils in Pinus sylvestris forest growing on sand near the Zotino flux tower suggest an SOC inventory in these soils of 2.22 +/- 0.35 kg m(-2) over 30 cm and an average delta(13)C value of -26.3 +/- 0.2parts per thousand over the 0-5 cm depth interval and -25.9 +/- 0.3parts per thousand over 0-30 cm. Recent burning had no effect on SOC inventories, but clearing has led to an average 25% decrease on SOC inventories from 0-30 cm over 12 yr. Neither burning nor clearing had a discernible effect on the delta(13)C value of SOC.

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Держатели документа:
VN Sukachev Inst Forests, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Bird, M.I.; Бёрд М.И.; Kalaschnikov, Y.N.; Калашников, Евгений Никифорович

: материалы временных коллективов / A. V. Kirdyanov [и др.] // Climatic changes and their impact on boreal and temperate forests: Abstracts of the International conference (June 5-7, Ekaterinburg, Russia) : Ural State Forest Engineering University, 2006. - С. 43

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

Доп.точки доступа:
Kirdyanov, Alexandr Viktorovich; Кирдянов, Александр Викторович; Knorre, Anastasiya Aleksyeyevna; Кнорре, Анастасия Алексеевна; Rigling, A.; Риглинг А.; Fedotova, Elena Viktorovna; Федотова, Елена Викторовна; Naurzbaev, Mukhtar Mukhametovich; Наурзбаев, Мухтар Мухаметович

: 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

: материалы временных коллективов / A. V. Kirdyanov [и др.] // Climate change and their impact on boreal and temperate forests: Abstracts of the International Conference (June 5-7, 2006, Ekaterinburg, Russia). - 2006. - С. 43

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

Доп.точки доступа:
Kirdyanov, Alexandr Viktorovich; Кирдянов, Александр Викторович; Knorre, Anastasiya Alekseevna; Кнорре, Анастасия Алексеевна; Fedotova, Elena Viktorovna; Naurzbayev, Mukhtar Mukhametovich; Наурзбаев, Мухтар Мухаметович; Sofronov, Mark Adrianovich; Софронов, Марк Адрианович
Имеются экземпляры в отделах:
РСФ (30.01.2008г. (1 экз.) - Б.ц.) - свободны 1

: материалы временных коллективов / O.V Trefilova, P. A. Oskorbin // Boreal forests in a changing world: challenges and needs for action: Proceedings of the International conference August 15-21 2011, Krasnoyarsk, Russia. - Krasnoyarsk : V.N. Sukachev Institute of forest SB RAS, 2011. - С. 65-69. - Библиогр. в конце ст.
Аннотация: The major parameters of the carbon cycle were studied in the pine stands of green moss and lichen proups of forest type using biometric method. The study was carried out for stands age sequence (15-260 years old) in the Zotinskii experimental polygon of Yenisei Transect. Heterotrophic respiration changes a little with age of the pine stands, therefore, net ecosystem production of these stands, in generally, mainly determines by age changes in the net primary production intensity.

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

Доп.точки доступа:
Oskorbin, Pavel Anatol'yevich; Оскорбин, Павел Анатольевич; Трефилова, Ольга Владимировна

: материалы временных коллективов / A. V. Kirdyanov [и др.] // Boreal forests in a changing world: challenges and needs for action: Proceedings of the International conference August 15-21 2011, Krasnoyarsk, Russia. - Krasnoyarsk : V.N. Sukachev Institute of forest SB RAS, 2011. - С. 222-226. - Библиогр. в конце ст.
Аннотация: Larch stand structure and vegetation changes along the longitudinal transect in the Putorana Mountains, Northen Siberia were studied to assess how forest-tundra ecotone has shifted during the last century in an extremely remote and untouched area in Eurasia. In summary, our study demonstrates that ongoing climatic changes led to an upslope expansion of forests in the remote Putorana Mountains, which alters the stand structure and productivity of forest-tundra ecotone. However, these vegetation changes are very likely of minor importance for aboveground carbon sequestration.

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

Доп.точки доступа:
Kirdyanov, Alexandr Viktorovich; Кирдянов, Александр Викторович; Knorre, Anastasiya Aleksyeyevna; Кнорре, Анастасия Алексеевна; Fedotova, Elena Viktorovna; Федотова, Елена Викторовна; Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Naurzbaev, Mukhtar Mukhametovich; Наурзбаев, Мухтар Мухаметович

[Текст] = Features of Radial growth of l.gmelinii in the North of Central Siberia, depending on local conditions : материалы временных коллективов / М. А. Табакова // Исследование компонентов лесных экосистем Сибири: Материалы конференции молодых ученых, 5-6 апреля 2012 г. , Красноярск. - Красноярск : Институт леса им. В.Н. Сукачева СО РАН , 2012. - Вып. 13. - С. 58-60. - Библиогр. в конце ст.
Аннотация: Results of dendroclimatic analysis for Gmelin's larch stands from three sites located along a short topographic transect in a continuous permafrost zone in the north of Central Siberia are presented. Comparative analysis of tree radial growth rates and year-to-yaer variability, as well as climatic response of master chronologies was carried out in relation to the local habitat conditions. Obtained results indicate that the dynamics and climatic response of radial growth is sufficiently different at the sites located along a short distance. This shows that site conditions (i.e. depth and the rate of permafrost thaw) are of crucial importance for spatial variability of tree growth on permafrost soils even within the neighboring stands.

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

Доп.точки доступа:
Tabakova M.A.

/ A. V. Kirdyanov, A. S. Prokushkin, M. A. Tabakova // Dendrochronologia. - 2013. - Vol. 31, Is. 2. - P114-119, DOI 10.1016/j.dendro.2012.10.003. - Cited References: 54. - The study was financed by Russian Foundation for Basic Research (12-04-00542), Swiss NSF (SCOPES IZ73Z0_128035) and the Grant of the Government of RF for outstanding scientists No. 11.G34.31.0014 to Prof. E.-D.Schulze. Work of TMA was also supported by the Grant of the President of RF for Young Scientists (MK-5498.2012.4). . - 6. - ISSN 1125-7865РУБ Plant Sciences + Forestry

Аннотация: While the forest-tundra zone in Siberia, Russia has been dendroclimatologically well-studied in recent decades, much less emphasis has been given to a wide belt of northern taiga larch forests located to the south. In this study, climate and local site conditions are explored to trace their influence on radial growth of Gmelin larch (Larix gmelinii (Rupr.) Rupr.) trees developed on permafrost soils in the northern taiga. Three dendrochronological sites characterized by great differences in thermo-hydrological regime of soils were established along a short (ca. 100 m long) transect: on a river bank (RB), at riparian zone of a stream (RZ) and on a terrace (TER). Comparative analysis of the rate and year-to-year dynamics of tree radial growth among sites revealed considerable difference in both raw and standardized tree-ring width (TRW) chronologies obtained for the RZ site, characterized by shallow soil active layer depth and saturated soils. Results of dendroclimatic analysis indicated that tree-ring growth at all the sites is mostly defined by climatic conditions of a previous year and precipitation has stronger effect on TRW chronologies in comparison to the air temperatures. Remarkably, a great difference in the climatic response of TRW chronologies has been obtained for trees growing within a very short distance from each other. The positive relation of tree-ring growth with precipitation, and negative to temperature was observed in the dry site RB. In contrary, precipitation negatively and temperature positively influenced tree radial growth of larch at the water saturated RZ. Thus, a complicate response of northern Siberian larch forest productivity to the possible climate changes is expected due to great mosaic of site conditions and variability of environmental factors controlling tree-ring growth at different sites. Our study demonstrates the new possibilities for the future dendroclimatic research in the region, as various climatic parameters can be reconstructed from tree-ring chronologies obtained for different sites. (c) 2013 Elsevier GmbH. All rights reserved.

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Держатели документа:
[Kirdyanov, Alexander V.
Prokushkin, Anatoly S.] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Tabakova, Maria A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Kirdyanov, A.V.; Prokushkin, A.S.; Tabakova, M.A.

/ E. D. Schulze [et al.] // Biogeosciences. - 2012. - Vol. 9, Is. 4. - P1405-1421, DOI 10.5194/bg-9-1405-2012. - Cited References: 39. - We thank Annett Borner for her help with the artwork, and Dominik Hessenmoller for his help. We also thank Inge Schulze for all her support during the fieldwork. The data processing was supported by the Russian "Megagrant" 11.G34.31.0014 from 30 November 2010 to E. D. Schulze by the Russian Federation and the Siberian Federal University to support research projects by leading scientists at Russian Institutions of higher Education. . - 17. - ISSN 1726-4170РУБ Ecology + Geosciences, Multidisciplinary

Аннотация: The relative role of fire and of climate in determining canopy species composition and aboveground carbon stocks were investigated. Measurements were made along a transect extending from the dark taiga zone of central Siberia, where Picea and Abies dominate the canopy, into the Larix zone of eastern Siberia. We test the hypotheses that the change in canopy species composition is based (1) on climate-driven performance only, (2) on fire only, or (3) on fire-performance interactions. We show that the evergreen conifers Picea obovata and Abies sibirica are the natural late-successional species both in central and eastern Siberia, provided there has been no fire for an extended period of time. There are no changes in performance of the observed species along the transect. Fire appears to be the main factor explaining the dominance of Larix and of soil carbon. Of lesser influence were longitude as a proxy for climate, local hydrology and active-layer thickness. We can only partially explain fire return frequency, which is not only related to climate and land cover, but also to human behavior. Stand-replacing fires decreased from 300 to 50 yrs between the Yenisei Ridge and the upper Tunguska. Repeated non-stand-replacing surface fires eliminated the regeneration of Abies and Picea. With every 100 yrs since the last fire, the percentage of Larix decreased by 20%. Biomass of stems of single trees did not show signs of age-related decline. Relative diameter increment was 0.41 +/- 0.20% at breast height and stem volume increased linearly over time with a rate of about 0.36 t C ha(-1) yr(-1) independent of age class and species. Stand biomass reached about 130 t C ha(-1)(equivalent to about 520 m(3) ha(-1)). Individual trees of Larix were older than 600 yrs. The maximum age and biomass seemed to be limited by fungal rot of heart wood. 60% of old Larix and Picea and 30% of Pinus sibirica trees were affected by stem rot. Implications for the future role of fire and of plant diseases are discussed.

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Держатели документа:
[Schulze, E. -D.
Mollicone, D.
Ziegler, W.] Max Planck Inst Biogeochem, D-07701 Jena, Germany
[Wirth, C.] Univ Leipzig, Inst Biol, D-04103 Leipzig, Germany
[Mollicone, D.
Achard, F.] Joint Res Ctr, Inst Environm & Sustainabil, I-21027 Ispra, Italy
[von Luepke, N.
Mund, M.] Univ Gottingen, Dept Ecoinformat Bioemetr & Forest Growth, D-37077 Gottingen, Germany
[Prokushkin, A.] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk, Russia
[Scherbina, S.] Centralno Sibirsky Nat Reserve, Bor, Russia

Доп.точки доступа:
Schulze, E.D.; Wirth, C...; Mollicone, D...; von Lupke, N...; Ziegler, W...; Achard, F...; Mund, M...; Prokushkin, A...; Scherbina, S...

[Text] / O. P. Sekretenko [et al.] ; ed.: A Stein, E Pebesma, Pebesma, // 1ST CONFERENCE ON SPATIAL STATISTICS 2011 - MAPPING GLOBAL CHANGE. Ser. Procedia Environmental Sciences : ELSEVIER SCIENCE BV, 2011. - Vol. 3: 1st International Conference on Spatial Statistics - Mapping Global Change (MAR 23-25, 2011, Enschede, NETHERLANDS). - P99-104, DOI 10.1016/j.proenv.2011.02.018. - Cited References: 6 . - 6. - ISBN 1878-0296РУБ Environmental Sciences + Geography, Physical

Аннотация: The ash stock in forest litter influences the fertility of forest soil and should be studied. Litter samples were taken at 70 locations within a 270x60 metre transect in 2004-2007 in the bog birch forest, western Siberia. A geostatistical model with external trend was applied to describe the spatial pattern of the ash mass (kg m(-2)) on the forest floor. Hydrological factors, used as explanatory variables in an external trend equation, account for the main portion of spatial variation (83% and 49% in the years of, respectively, low and high spring flooding). Covariance structure of the data, connected with patterns of vegetation and silt deposits, explains the smaller portion of spatial variation (12% and 38%). The unexplained variation is minor (5% and 13%). (c) 2010 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Spatial Statistics 2011

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Держатели документа:
[Sekretenko, O. P.
Efremova, T. T.
Avrova, A. F.
Efremov, S. P.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Sekretenko, O.P.; Efremova, T.T.; Avrova, A.F.; Efremov, S.P.; Stein, A \ed.\; Pebesma, E \ed.\; Pebesma, \ed.\

[Text] / V. I. Kharuk [et al.] // Russ. J. Ecol. - 2005. - Vol. 36, Is. 3. - P164-170, DOI 10.1007/s11184-005-0055-5. - Cited References: 13 . - 7. - ISSN 1067-4136РУБ Ecology

Аннотация: The expansion of so-called evergreen conifers (EGCs), including Siberian stone pine, spruce, and fir, along the transect oriented from the boundary of the larch-dominated zone (LDZ; mixed forests of the Yenisei Ridge) to its center has been studied. The normalized dispersal coefficient calculated as K-i = (n(i) - N-i)/(n(i) + N-i), where ni and Ni are the relative numbers of the ith species in the undergrowth and the upper layer, respectively, serves as an indicator of the expansion. It has been found that the Ki values for EGCs (and birch) are higher than the Ki of larch even in the zone absolutely dominated by larch, where the relative numbers of EGCs in the upper layer is less than 1%. The EGC undergrowth has mainly been formed during the past 20-30 years, which is correlated with the trend of summer temperatures The spread of EGCs in the LDZ depends on the frequency of forest fires. The decrease in the time intervals between fires in the 20th century to 65 years (versus 100 years in the 19th century) may have prevented the expansion of competing species in the LDZ. The results obtained indicate that EGCs and birch penetrate into the zone traditionally dominated by larch, which is related to climatic changes during the past three decades. At the same time, tree stand density is increasing in the forest-tundra ecotone, and larch is spreading further into the tundra zone.

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Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
NASA, Goddard Space Ctr, Greenbelt, MD 20771 USA

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

[Text] / H. . Santruckova [et al.] // Glob. Change Biol. - 2003. - Vol. 9, Is. 7. - P1106-1117, DOI 10.1046/j.1365-2486.2003.00596.x. - Cited References: 47 . - 12. - ISSN 1354-1013РУБ Biodiversity Conservation + Ecology + Environmental Sciences

Аннотация: Soil microbial properties were studied from localities on a transect along the Yenisei River, Central Siberia. The 1000 km-long transect, from 56degreesN to 68degreesN, passed through tundra, taiga and pine forest characteristic of Northern Russia. Soil microbial properties were characterized by dehydrogenase activity, microbial biomass, composition of microbial community (PLFAs), respiration rates, denitrification and N mineralization rates. Relationships between vegetation, latitude, soil quality (pH, texture), soil organic carbon (SOC) and the microbial properties were examined using multivariate analysis. In addition, the temperature responses of microbial growth (net growth rate) and activity (soil respiration rate) were tested by laboratory experiments. The major conclusions of the study are as follows: 1. Multivariate analysis of the data revealed significant differences in microbial activity. SOC clay content was positively related to clay content. Soil texture and SOC exhibited the dominant effect on soil microbial parameters, while the vegetation and climatic effects (expressed as a function of latitude) were weaker but still significant. The effect of vegetation cover is linked to SOC quality, which can control soil microbial activity. 2. When compared to fine-textured soils, coarse-textured soils have (i) proportionally more SOC bound in microbial biomass, which might result in higher susceptibility of SOC transformation to fluctuation of environmental factors, and (ii) low mineralization potential, but with a substantial part of the consumed C being transformed to microbial products. 3. The soil microbial community from the northernmost study region located within the permafrost zone appears to be adapted to cold conditions. As a result, microbial net growth rate became negative when temperature rose above 5 degreesC and C mineralization then exceeded C accumulation.

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Держатели документа:
AS CR, Inst Soil Biol, CZ-37005 Ceske Budejovice, Czech Republic
Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia
Australian Natl Univ, Res Sch Biol Sci, Canberra, ACT 0200, Australia
Russian Acad Sci, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Severtsovs Inst Ecol & Evolut Problems, Moscow 117071, Russia
Max Planck Inst Biogeochem, D-07701 Jena, Germany

Доп.точки доступа:
Santruckova, H...; Bird, M.I.; Kalaschnikov, Y.N.; Grund, M...; Elhottova, D...; Simek, M...; Grigoryev, S...; Gleixner, G...; Arneth, A...; Schulze, E.D.; Lloyd, J...

[Text] / O. V. Menyailo, Y. N. Krasnoshchekov // Biol. Bull. - 2003. - Vol. 30, Is. 3. - P299-303, DOI 10.1023/A:1023872215777. - Cited References: 20 . - 5. - ISSN 1062-3590РУБ Biology

Аннотация: To estimate the probable contribution of northern forest soils to the global budget of greenhouse microgases. the cryogenic soils along the Yenisei meridian have been studied with respect to their potential denitrification and carbon mineralization activities. It is shown that the forest soils of the boreal zone have a high denitrification potential and, under conditions of a high nitrate nitrogen content, may be a source of nitrous c oxide emission. A significant correlation is observed between N2O and CO2 emissions (r = 0.85, p 0.001).

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Menyailo, O.V.; Krasnoshchekov, Y.N.

[Text] / V. I. Kharuk [et al.] // Int. J. Remote Sens. - 2003. - Vol. 24, Is. 1. - P23-37, DOI 10.1080/0143116021000021143. - Cited References: 30 . - 15. - ISSN 0143-1161РУБ Remote Sensing + Imaging Science & Photographic Technology

Аннотация: In this paper NOAA AVHRR data acquired at the Sukachev Institute of Forest in Siberia, Russia is evaluated for forest management mapping applications. First a classification of the entire 1000 km x 3000 km transect was performed, but was found to be too general to be of value. More useful interpretation procedures require a landscape-ecological approach. This means that computer classification should be made separately for segments of territory based ecologically distinct regions. This segmentation of the transect into ecological regions was found to improve the level of detail available in the classification. Using this approach AVHRR data were found to be adequate for small scale mapping at the level of vegetation types or plant formations. A limited study using AVHRR data for classification of mountainous regions showed that AVHRR-derived maps were more detailed than existing landscape maps. AVHRR derived classifications also compared favourably to larger scale forest management maps of softwood and hardwood forests. Current forest management in Siberia relies on very small-scale inventory maps. Thus, there is a potential role for AVHRR (or Terra) data for northern Siberian forest monitoring. The southern forests of the Yenisey meridian (below the 57th parallel) are less uniform due to considerable human activity, and NOAA/AVHRR data will play a subordinate role in its monitoring.

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Держатели документа:
Sukachev Inst Forest, Krasnoyarsk, Russia
NASA, Goddard Space Flight Ctr, Biospher Sci Branch, Greenbelt, MD 20771 USA

Доп.точки доступа:
Kharuk, V.I.; Ranson, K.J.; Burenina, T.A.; Fedotova, E.V.

[Text] / S. T. Im [et al.] // IGARSS 2003: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS I - VII, PROCEEDINGS: LEARNING FROM EARTH'S SHAPES AND SIZES. Ser. IEEE International Symposium on Geoscience and Remote Sensing (IGARSS) : IEEE, 2003. - 23rd International Geoscience and Remote Sensing Symposium (IGARSS 2003) (JUL 21-25, 2003, TOULOUSE, FRANCE). - P2562-2564. - Cited References: 2 . - 3. - ISBN 0-7803-7929-2РУБ Geosciences, Multidisciplinary + Instruments & Instrumentation + Remote Sensing + Imaging Science & Photographic Technology

Аннотация: Radarsat data validity in classification of Siberian plain taiga ecosystems along the Yenisei River (1GBP transect, 90 E) was analyzed. Six test areas were selected. Those areas represent a variety of the main ecosystem and physical-geographical conditions from the tundra to the southern taiga (forest) zones. The analysis of Radarsat signal amplitude, textural characteristics and digital elevation fused data allowed the detection of 18 onground classes. For the purpose of classification the importance of parameters arrange as follows: relief, signal amplitude, skewness, variance, mean Euclidean distance and kurtosis. The main advantage of the Radarsat data is its ability to detect hydromorphic elements (7 bog types were determined).

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Держатели документа:
Sukachev Inst Forest, Krasnoyarsk, Russia

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

[Text] / E. F. Vedrova, L. S. Shugalei, V. D. Stakanov // J. Veg. Sci. - 2002. - Vol. 13: IGBP Terrestrial Transects Workshop (JUL 12-16, 1999, DARWIN, AUSTRALIA), Is. 3. - P341-350, DOI 10.1111/j.1654-1103.2002.tb02058.x. - Cited References: 55 . - 10. - ISSN 1100-9233РУБ Plant Sciences + Ecology + Forestry

Аннотация: We evaluated the balance of production and decomposition in natural ecosystems of Pinus sylvestris, Larix sibirica and Betula pendula in the southern boreal forests of central Siberia. using the Yenisei transect. We also investigated whether anthropogenic disturbances (logging, fire and recreation pressure) influence the carbon budget. Pinus and Larix stands up to age class VI act as a net sink for atmospheric carbon. Mineralization rates in young Betula forests exceed rates of uptake via photosynthesis assimilation. Old-growth stands of all three forest types are CO2 sources to the atmosphere. The prevalence of old-growth Larix in the southern taiga suggests that Larix stands are a net source of CO2. The CO, flux to the atmosphere exceeds the uptake of atmospheric carbon via photosynthesis by 0.23 t C.ha(-1).yr(-1) (47%). Betula and Pinus forests are net sinks, as photosynthesis exceeds respiration by 13% and 16% respectively. The total carbon flux from Pinus, Larix and Betula ecosystems to the atmosphere is 10 387 thousand tons C.yr(-1). Net Primary Production (0.935 t-C.ha(-1)) exceeds carbon release from decomposition of labile and mobile soil organic matter (Rh) by 767 thousand tons C (0.064 t-C.ha(-1)), so that these forests are net C-sinks. The emissions due to decomposition of slash (10 1 thousand tons C; 1.0%) and from fires (0.21%) are very small. The carbon balance of human-disturbed forests is significantly different. A sharp decrease in biomass stored in Pinus and Betula ecosystems leads to decreased production. As a result, the labile organic matterpool decreased by 6-8 times; course plant residues with a low decomposition rate thus dominate this pool. Annual carbon emissions to the atmosphere from these ecosystems are determined primarily by decomposing fresh litterfall. This source comprises 40-79% of the emissions from disturbed forests compared to only 13-28% in undisturbed forests. The ratio of emissions to production (NPP) is 20-30% in disturbed and 52-76% in undisturbed forests.

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Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest & Wood, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vedrova, E.F.; Shugalei, L.S.; Stakanov, V.D.

[Text] / A. . Arneth [et al.] // Glob. Biogeochem. Cycle. - 2002. - Vol. 16, Is. 1. - Ст. 1005, DOI 10.1029/2000GB001374. - Cited References: 70 . - 13. - ISSN 0886-6236РУБ Environmental Sciences + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: [1] Twenty tree ring C-13/C-12 ratio chronologies from Pinus sylvestris (Scots pine) trees were determined from five locations sampled along the Yenisei River, spaced over a total distance of similar to1000 km between the cities of Turuhansk (66degreesN) and Krasnoyarsk (56degreesN). The transect covered the major part of the natural distribution of Scots pine in the region with median growing season temperatures and precipitation varying from 12.2degreesC and 218 mm to 14.0degreesC and 278 mm for Turuhansk and Krasnoyarsk, respectively. A key focus of the study was to investigate the effects of variations in temperature, precipitation, and atmospheric CO2 concentration on long-and short-term variation in photosynthetic C-13 discrimination during photosynthesis and the marginal cost of tree water use, as reflected in the differences in the historical records of the C-13/C-12 ratio in wood cellulose compared to that of the atmosphere (Delta(13)C(c)). In 17 of the 20 samples, trees Delta(13)C(c) has declined during the last 150 years, particularly so during the second half of the twentieth century. Using a model of stomatal behaviour combined with a process-based photosynthesis model, we deduce that this trend indicates a long-term decrease in canopy stomatal conductance, probably in response to increasing atmospheric CO2 concentrations. This response being observed for most trees along the transect is suggestive of widespread decreases in Delta(13)C(c) and increased water use efficiency for Scots pine in central Siberia over the last century. Overlying short-term variations in Delta(13)C(c) were also accounted for by the model and were related to variations in growing season soil water deficit and atmospheric humidity.

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Scopus

Держатели документа:
Manaaki Whenua, Landcare Res, Lincoln, New Zealand
Max Planck Inst Biogeochem, D-07701 Jena, Germany
Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia
Inst Evolut & Ecol Problems, Svertsov Lab, Moscow 117071, Russia
VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Univ S Bohemia, Fac Biol Sci, Ceske Budejovice, Czech Republic
Inst Soil Biol AS CR, Ceske Budejovice, Czech Republic

Доп.точки доступа:
Arneth, A...; Lloyd, J...; Santruckova, H...; Bird, M...; Grigoryev, S...; Kalaschnikov, Y.N.; Gleixner, G...; Schulze, E.D.

[Text] / M. M. Naurzbaev, M. K. Hughes, E. A. Vaganov // Quat. Res. - 2004. - Vol. 62, Is. 2. - P126-133, DOI 10.1016/j.yqres.2004.06.005. - Cited References: 35 . - 8. - ISSN 0033-5894РУБ Geography, Physical + Geosciences, Multidisciplinary

Аннотация: Regional growth curves (RGCs) have been recently used to provide a new basis for removing nonclimatic trend from tree-ring data. Here we propose a different use for RGCs and explore their properties along two transects, one meridional and the other elevational. RGCs consisting of mean ring width plotted against cambial age were developed for larch samples from 34 sites along a meridional transect (55-72degreesN) in central Siberia, and for 24 sites on an elevational gradient (1120 and 2350 in a.s.l.) in Tuva and neighboring Mongolia at approximately 51degreesN. There are systematic gradients of the parameters of the RGCs, such as I-0-maximum tree-ring width near pith, and I-min, the asymptotic value of tree-ring width in old trees. They are smaller at higher latitude and elevation. Annual mean temperature and mean May-September temperature are highly correlated with latitude here, and hence RGC parameters are correlated with these climatic variables. Correlations with precipitation are more complex, and contradictory between meridional and elevational transects. The presence of a similar gradient in the elevational transect is consistent with temperature being the causal factor for both gradients, rather than, for example, latitude-dependent patterns of seasonal photoperiod change. Taking ring measurements from collections of relict and subfossil wood, the RGC-latitude and RGC-temperature relationships are used to estimate paleo-temperatures on centennial time scales. These estimates are consistent with earlier "traditional" dendroclimatic approaches, and with independent information on the northern extent of forest growth in the early mid-Holocene. It may be possible to use this same approach to make estimates of century-scale paleo-temperatures in other regions where abundant relict wood is present. (C) 2004 Univesity of Washington. All rights reserved.

Полный текст,
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Scopus

Держатели документа:
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
Russian Acad Sci, Siberian Branch, Inst Forest, Krasnoyarsk 660036, Russia

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

[Text] / E. D. Schulze [et al.] // Tellus Ser. B-Chem. Phys. Meteorol. - 2002. - Vol. 54, Is. 5. - P421-428, DOI 10.1034/j.1600-0889.2002.01342.x. - Cited References: 27 . - 8. - ISSN 0280-6509РУБ Meteorology & Atmospheric Sciences

Аннотация: An introduction is given to the geography of Russian forests and to the specific conditions of the study sites located along the 60degrees latitude east of Moscow (Fyedorovskoe) near the Ural Mountains (Syktivkar) and in Central Siberia near the Yennisei river (Zotino). The climatic conditions were similar at all three sites. The main ecological parameter that changes between European Russia and Siberia is the length of the growing season (230 d above 0 degreesC NE Moscow to 170 d above 0 degreesC in Central Siberia) and to a lesser extent precipitation (580 mm NE Moscow to 530 mm in Central Siberia). The experimental sites were generally similar to the regional conditions,. although the Tver region has less forest and more grassland than the central forest reserve, and the Komi region has slightly less wetland than the study area. The Krasnoyarsk region reaches from the arctic ocean to and central Asia and contains a significant proportion of non-forest land. The boreal forest of west and east Yennisei differs mainly with respect to wetlands, which cover almost half of the land area on the west bank. All sites are prone to disturbance. Heavy winds and drought or surplus water are the main disturbance factors in European Russia (a 15-20 yr cycle), and fire is the dominating disturbance factor in Siberia (220-375 yr for stand replacing fires).

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Полный текст

Держатели документа:
Max Planck Inst Biogeochem, D-07701 Jena, Germany
RAS, Severtsov Inst Ecol & Evolut, Moscow 1107071, Russia
Siberian RAS, Inst Forest, Krasnoyarsk 660036, Russia
Univ Tuscia, Dept Forest Scil & Environm, I-01100 Viterbo, Italy

Доп.точки доступа:
Schulze, E.D.; Vygodskaya, N.N.; Tchebakova, N.M.; Czimczik, C.I.; Kozlov, D.N.; Lloyd, J...; Mollicone, D...; Parfenova, E...; Sidorov, K.N.; Varlagin, A.V.; Wirth, C...