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

/ O. Shibistova et al, S. Efgrafova, G. Zrazhevskaya // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 552-567
Аннотация: Rates of CO2 efflux from the floor of a central Siberian Scots pine (Pinus sylvestris) forest were measured using a dynamic closed chamber system and by a eddy covariance system placed 2.5 m above the forest floor. Measurements were undertaken for a full growing season: from early May to early October 1999. Spatial variability as determined by the chamber measurements showed the rate of CO2 efflux to depend on location, with rates from relatively open areas ("glades") only being about 50% those observed below or around trees. This was despite generally higher temperatures in the glade during the day. A strong relationship between CO2 efflux rate and root density was observed in early spring, suggesting that lower rates in open areas may have been attributable to fewer roots there. Continuous measurements with the eddy covariance system provided good temporal coverage. This method, however, provided estimates of ground CO2 efflux rate rates that were about 50% lower than chamber measurements that were undertaken in areas considered to be representative of the forest as a whole. An examination of the seasonal pattern of soil CO2 efflux rates suggests that much of the variability in CO2 efflux rate could be accounted for by variations in soil temperature. Nevertheless, there were also some indications that the soil water deficits served to reduce soil CO2 efflux rates during mid-summer. Overall the sensitivity of CO2 efflux rate to temperature seems to be greater for this boreal ecosystem than has been the case for most other studies.

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Держатели документа:
Russian Acad Sci, VN Sukacehv Forest Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Shibistova, Olga Borisovna; Шибистова, Ольга Борисовна; Yevgrafova, Svetlana Yur'yevna; Евграфова, Светлана Юрьевна; Zrazhevskaya, Galina Kirillovna; Зражевская, Галина Кирилловна

/ Y. Savva, F. Schweingruber, L. I. Milyutin, E. Vaganov // Trees. Structure and Function. - 2002. - Vol. 16, № 4-5. - С. 313-324
Аннотация: Seeds of Scots pine provenances originating from all over Russia were planted in the Boguchany provenance trial at a central Siberian location (southern taiga) in 1974. Eight tree-ring density and width parameters for 16 different provenances were measured with densitometric techniques. The tree-ring data were recorded from 1982 to 1996. Correlation analysis calculated by raw series showed that tree-ring width decreases and percentage of latewood increases with an increase in the latitude of the seed source. High variability was found for raw tree-ring characteristics from tree to tree within each provenance for an observed period (individual variability). The age trend of each tree is well described by the chosen fitting curve, and is similar for the mean series of each provenance. As a consequence of these findings, the indexed chronology for each provenance mainly shows climatic signals. The SD of the indexed chronology (chronological variability) is low for each provenance, showing low sensitivity to climatic influences. A cluster analysis of provenances represented by tree-ring characteristics differentiated the provenances into three groups. However, the statistical distance between the groups was minor. So we can confirm that Scots pine provenances are highly adaptable to local ecological conditions and regional climatic influences.

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Держатели документа:
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk, Russia

Доп.точки доступа:
Schweingruber, F. H.; Швайнгрубер Ф.Х.; Milyutin, Leonid Iosifovich; Милютин, Леонид Иосифович; Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Савва, Юлия Владимировна

: материалы временных коллективов / A. S. Prokushkin [и др.] // Proceedings of the eighth symposium on the joint Siberian permafrost studies between Japan and Russia in 1999. - Onogawa : National Institute for Environmental Studies, 2000. - С. 135-142. - Библиогр. в конце ст.
Аннотация: Estimation of the flux of water soluble organic matter through larch stand components has showed that potential DOC stock of forest floor, litter and upper 5-cm soil layer depended on stand location on relief.

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

Доп.точки доступа:
Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Prokushkin, Staniclav Grigor'evich; Прокушкин Станислав Григорьевич; Koike, T.; Койке Т.; Abaimov, Anatoly Platonovich ; Абаимов Анатолий Платонович

: материалы временных коллективов / D. J. McRae [и др.] // Canadian Journal of Forest Research. - 2005. - Vol. 35, № : 9. - С. 2194-2206
Аннотация: Spatial and temporal variability in forest fire behavior, caused by differences in microsites, fuel types and condition, topography, and other factors across even relatively small areas, has been poorly characterized in most previous studies. We report documentation and analysis of fire behavior for several experimental fires using a camcorder-sized infrared camera mounted in a helicopter hovering over the target fires. These fires were conducted as part of the Russian FIRE BEAR Project in boreal Pinus sylvestris L. forests of central Siberia. Final results provide quantitative information on fire front location, rates of speed, temperatures, and total radiation energy (kW/m2) observed during the fires at resolutions from 2.5 to 1.0 m across experimental burn plots ranging from 2.3 to 4.0 ha. This method allows the sample size to be quite large, so that statistical analysis of the fire behavior data can provide an associated level of confodence.

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

Доп.точки доступа:
McRae, D.J.; Макрае Д.Дж.; Jin, J.-Z.; Джин Дж -З.; Conard, S.G.; Конард С.Г.; Sukhinin, Anatoly Ivanovich; Сухинин, Анатолий Иванович; Ivanova, Galina Alexandrovna; Иванова, Галина Александровна; Blake, T.W.; Блэйк Т.В.

: материалы временных коллективов / N. M. Tchebakova // Workshop on climate change, the tree growth response, and reconstruction of climate 25-29 January 2006, V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russia. - Krasnoyarsk : V.N. Sukachev Institute of Forest SB RAS, 2006. - С. 28
Аннотация: The results show enormous changes in the vegetation cover of Siberia for a warmed climate. Southern vegetation types such as southen taiga, subtaiga, and forest-steppe are expected to expand from about 10% to 70% coverage. This increase in coverage would be largely at the expense of northern and middle taiga each of which would then occupy less than 20%. Some contemporary climatypes are projected to diappear from Siberia while others common elsewhere would evolve. To mitigate these effects, climatypes should be transferred today to the expected future location of their climatic optima, a distance that is likely to approach 700-1200 km for Siberian species of larches.

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

Доп.точки доступа:
Чебакова, Надежда Михайловна

[Текст] = Software for optimizing fire management objects disposition in the forest management area : материалы временных коллективов / К. С. Першин // 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. 30-32. - Библиогр.: 4 назв.
Аннотация: This paper presents software developed for optimizing fire management objects distribution in the forest area. New programs based on expert data allow determining the best object location from the suggested ones.

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

Доп.точки доступа:
Pershin K.S.

[Text] / V. I. Kharuk [et al.] // Glob. Ecol. Biogeogr. - 2010. - Vol. 19, Is. 6. - P822-830, DOI 10.1111/j.1466-8238.2010.00555.x. - Cited References: 33. - This research was supported by the NASA Science Mission Directorate, Terrestrial Ecology Program, the Siberian Branch Russian Academy of Science Program no. 23.3.33, and grant no. MK-2497.2009.5. Thanks to Joanne Howl for edits of the manuscript. . - 9. - ISSN 1466-822XРУБ Ecology + Geography, Physical

Аннотация: Aim To evaluate the hypothesis that topographic features of high-elevation mountain environments govern spatial distribution and climate-driven dynamics of the forest. Location Upper mountain forest stands (elevation range 1800-2600 m) in the mountains of southern Siberia. Methods Archive maps, satellite and on-ground data from1960 to 2002 were used. Data were normalized to avoid bias caused by uneven distribution of topographic features (elevation, azimuth and slope steepness) within the analysed area. Spatial distribution of forest stands was analysed with respect to topography based on a digital elevation model (DEM). Results Spatial patterns in mountain forests are anisotropic with respect to azimuth, slope steepness and elevation. At a given elevation, the majority of forests occupied slopes with greater than mean slope values. As the elevation increased, forests shifted to steeper slopes. The orientation of forest azimuth distribution changed clockwise with increase in elevation (the total shift was 120 degrees), indicating a combined effect of wind and water stress on the observed forest patterns. Warming caused changes in the forest distribution patterns during the last four decades. The area of closed forests increased 1.5 times, which was attributed to increased stand density and tree migration. The migration rate was 1.5 +/- 0.9 m year-1, causing a mean forest line shift of 63 +/- 37 m. Along with upward migration, downward tree migration onto hill slopes was observed. Changes in tree morphology were also noted as widespread transformation of the prostrate forms of Siberian pine and larch into erect forms. Main conclusions The spatial pattern of upper mountain forests as well as the response of forests to warming strongly depends on topographic relief features (elevation, azimuth and slope steepness). With elevation increase (and thus a harsher environment) forests shifted to steep wind-protected slopes. A considerable increase in the stand area and increased elevation of the upper forest line was observed coincident with the climate warming that was observed. Warming promotes migration of trees to areas that are less protected from winter desiccation and snow abrasion (i.e. areas with lower values of slope steepness). Climate-induced forest response has significantly modified the spatial patterns of high-elevation forests in southern Siberia during the last four decades, as well as tree morphology.

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Держатели документа:
[Kharuk, Vyacheslav I.
Im, Sergey T.] Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Ranson, Kenneth J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[Vdovin, Alexander S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Kharuk, V.I.; Ranson, K.J.; Im, S.T.; Vdovin, A.S.

[Text] / K. R. Briffa [et al.] // Philos. Trans. R. Soc. B-Biol. Sci. - 2008. - Vol. 363, Is. 1501. - P2271-2284, DOI 10.1098/rstb.2007.2199. - Cited References: 42 . - 14. - ISSN 0962-8436РУБ Biology

Аннотация: This paper describes variability in trends of annual tree growth at several locations in the high latitudes of Eurasia, providing a wide regional comparison over a 2000-year period. The study focuses on the nature of local and widespread tree-growth responses to recent warming seen in instrumental observations, available in northern regions for periods ranging from decades to a century. Instrumental temperature data demonstrate differences in seasonal scale of Eurasian warming and the complexity and spatial diversity of tree-growing-season trends in recent decades. A set of long tree-ring chronologies provides empirical evidence of association between inter-annual tree growth and local, primarily summer, temperature variability at each location. These data show no evidence of a recent breakdown in this association as has been found at other high-latitude Northern Hemisphere locations. Using Kendall's concordance, we quantify the time-dependent relationship between growth trends of the long chronologies as a group. This provides strong evidence that the extent of recent widespread warming across northwest Eurasia, with respect to 100- to 200-year trends, is unprecedented in the last 2000 years. An equivalent analysis of simulated temperatures using the HadCM3 model fails to show a similar increase in concordance expected as a consequence of anthropogenic forcing.

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Держатели документа:
[Briffa, Keith R.
Melvin, Thomas M.] Univ E Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England
[Shishov, Vladimir V.
Naurzbaev, Muktar M.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Dendroecol Dept, Krasnoyarsk 660036, Russia
[Shishov, Vladimir V.] Krasnoyarsk State Trade Econ Inst, IT & Math Modelling Dept, Krasnoyarsk 660075, Russia
[Grudd, Haken] Stockholm Univ, Dept Phys Geog & Quaternary Geol, S-10691 Stockholm, Sweden
[Hantemirov, Rashit M.] Russian Acad Sci, Ural Branch, Inst Plant & Anim Ecol, Lab Dendrochronol, Ekaterinburg 620144, Russia
[Eronen, Matti] Univ Helsinki, Dept Geol, FIN-00014 Helsinki, Finland
[Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Briffa, K.R.; Shishov, V.V.; Melvin, T.M.; Vaganov, E.A.; Grudd, H...; Hantemirov, R.M.; Eronen, M...; Naurzbaev, M.M.

[Text] / T. S. Sedelnikova, E. N. Muratova // Russ. J. Ecol. - 2002. - Vol. 33, Is. 5. - P303-308, DOI 10.1023/A:1020232524851. - Cited References: 31 . - 6. - ISSN 1067-4136РУБ Ecology

Аннотация: The results of a karyological study on Siberian stone pines growing in the bog demonstrated differences from the populations of this species studied earlier with respect to sizes of chromosomes and location of secondary constrictions. The number of nucleolar organizer regions in the chromosomes of Siberian stone pine trees growing in the bog was larger than in other populations. A wide spectrum of chromosome aberrations was revealed, which had not been observed in this species before. These were genome and chromosome aberrations of various types, as well as structural aberrations accompanied by changes in the number of chromosomes. It is assumed that the aberrations in the karyotype of Siberian stone pine resulted from stressful conditions.

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

Доп.точки доступа:
Sedelnikova, T.S.; Muratova, E.N.

[Текст] / O. P. Sekretenko, V. G. Sukhovolsky, O. V. Tarasova // Zhurnal Obshchei Biol. - 2002. - Vol. 63, Is. 4. - С. 351-360. - Cited References: 22 . - 10. - ISSN 0044-4596РУБ Biology

Аннотация: The authors analyze spatial distribution and survival of populations of poplar moth Litchcolletis populifoliella Tr on its feeding plant - balsam poplar Populus balsamifera Imago of the moth glue its eggs on the leaves thus determining the future location of their offspring on the host plant Spatial distribution of eggs on leaf surface and distribution of leaves according egg numbers are not random On the short distance from each egg the average number of eggs is less, than it should be in case of random distribution While this distance increases up to some particular value the occurrence of eggs is higher than random Thus, the eggs of moth are located by groups on the leaf surface Within each group eggs are situated not very close to each other, this allowing larvae to lower competition for common resource It is suggested that on the same feeding plant individuals have different interactions competition, caused by limited quantity of resource and cooperation that is necessary to resist leaf defensive (antibiosis) reaction.

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

Доп.точки доступа:
Sekretenko, O.P.; Sukhovolsky, V.G.; Tarasova, O.V.

[Текст] / D. L. Grodnitsky // Zhurnal Obshchei Biol. - 2000. - Vol. 61, Is. 3. - С. 258-273. - Cited References: 82 . - 16. - ISSN 0044-4596РУБ Biology

Аннотация: Theoretical morphology should include methods that allow to determine limits of discrete variability of organisms of the given taxon. it is possible to determine the multitude of possible factors based on the demands of natural selection to the given structure under given conditions. The author presents a number of such multitudes that describe the variability of salamander tongue apparatus, kinematics of flapping night in insects and wing shape of birds from the order Ciconiiformes. Another approach is based on mechanisms that rule the morphogenesis of individuals of the given taxon in particulate environment. Examples of morphogenetic multitude are illustrated by the variability of location of organs on plant stems, morphology of mollusc shells and colonies of hydroids polyps. All examples show that existing phenotypes occupy a compact area in the space of theoretically possible forms so the multitude of realized phenotypes does not have free space. If some free space is discovered it means that corresponding forms of life exist in nature but still are not registered and investigated.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest Res, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Grodnitsky, D.L.

[Text] / R. A. Monserud, N. M. Tchebakova, O. V. Denissenko // Paleogeogr. Paleoclimatol. Paleoecol. - 1998. - Vol. 139, Is. 01.02.2013. - P15-36, DOI 10.1016/S0031-0182(97)00127-2. - Cited References: 72 . - 22. - ISSN 0031-0182РУБ Geography, Physical + Geosciences, Multidisciplinary + Paleontology

Аннотация: A bioclimatic vegetation model is used to reconstruct the palaeoclimate of Siberia during the mid-Holocene, a warm. moist period also known as the Holocene climatic optimum. Our goal is to determine the magnitude of climatic anomalies associated with mapped changes in vegetation classes. Reconstructed anomalies are the logical outcome of the bioclimatic assumptions in the Siberia vegetation model operating on location-specific differences in the palaeomap of Khotinsky and the modern map of Isachenko. The Siberian vegetation model specifics the relationship between vegetation classes and climate using climatic indices (growing-degree days, dryness index, continentality index). These indices are then converted into parameters commonly used in climatic reconstructions: January and July mean temperatures. and annual precipitation. Climatic anomalies since the mid-Holocene are then displayed by latitude and longitude. An advantage of a model-based approach to climatic reconstruction is that grid cells can be modelled independently. without the need for interpolation to create smoothed temperature and precipitation contours. The resulting pattern of anomalies is complex. On average. Siberian winters in the mid-Holocene were 3.7 degrees C warmer than now, with greater warming in higher latitudes. The major winter warming was concentrated in the Taiga zone on the plains and tablelands of East Siberia, where a warm and moist climate was necessary to support a broad expanse of shade-tolerant dark-needled Taiga. January temperatures averaged about 1 degrees C warmer than now across southern Siberia. although large areas show no change. July temperature anomalies (0-5 degrees C) are distributed mostly latitudinally, with anomalies increasing with latitude above 65 degrees N. At latitudes below 65 degrees N, July temperature was nearly the same as today across Siberia. Based on July temperatures. Siberian summers in the mid-Holocene were 0.7 degrees C warmer than today's. Annual precipitation in Siberia was predicted to be 95 mm greater in the mid-Holocene than now. Most of the increase was concentrated in East Siberia (154 mm average increase). The precipitation anomalies are small in the south. Large precipitation anomalies are found in central and northeastern Siberia. This location corresponds rather closely to the large anomalies in January temperature in East Siberia. The annual precipitation Increase was > 200 mm more than present precipitation in Yakutia. This increase corresponds to the deep penetration of moisture-demanding dark-needled species (Pinus sibirica. Abies sibirica, Picea obovata) into East Siberia in the mid-Holocene, where currently only drought-resistant light-needled species (Larix spp.) are found. Another area of increased precipitation was along the Polar Circle in West Siberia and at the base of the Taymyr Peninsula in East Siberia. In combination with 2-5 degrees C warmer summers, moister climates there allowed forests to advance far northward into what is now the Tundra zone.

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Forest Serv, Rocky Mt Res Stn, USDA, Portland, OR 97205 USA
Forest Serv, Pacific NW Res Stn, USDA, Portland, OR 97205 USA
Russian Acad Sci, Siberian Branch, Sukachev Forest Inst, Krasnoyarsk 660036, Russia
Moscow State Univ, Dept Geog, Moscow 119899, Russia

Доп.точки доступа:
Monserud, R.A.; Tchebakova, N.M.; Denissenko, O.V.

[Text] / A. . Arneth [et al.] // Boreal Environ. Res. - 2006. - Vol. 11, Is. 4. - P311-328. - Cited References: 79 . - 18. - ISSN 1239-6095РУБ Environmental Sciences

Аннотация: A range of observations points towards earlier onset of spring in northern high latitudes. However, despite the profound effects this may have on vegetation-atmosphere exchange of carbon (NEE), vegetation-atmosphere physical coupling, or the location of the tundra-taiga interface, the number of studies that investigate winter-spring transition fluxes in contrasting northern vegetation types is limited. Here, we examine spring ecosystem-atmosphere energy and carbon exchange in a Siberian pine forest and mire. Divergent surface albedo before and during snow-melt resulted in daytime net radiation (R-n) above the forest exceeding R. above the mire by up to 10 MJ m(-2). Until stomata could open, absorbed radiation by the green pine canopy caused substantial daytime sensible heat fluxes (H 10 MJ m(-2)). H above the mire was very low, even negative (-2 MJ M-2), during that same period. Physiological activity in both ecosystems responded rapidly to warming temperatures and snow-melt, which is essential for survival in Siberia with its very short summers. On days with above-zero temperatures, before melt. was complete, low rates of forest photosynthesis (1-2 mu mol m(-2) s(-1)) were discernible. Forest and mire NEE became negative the same day, or shortly after, photosynthesis commenced. The mire lagged by about two weeks behind the forest and regained its full carbon uptake capacity at a slower rate. Our data provide empirical evidence for the importance the timing of spring and the relative proportion of forest vs. mire has for late winter/spring boundary-layer growth, and production and surface-atmosphere mixing of trace gases. Models that seek to investigate effects of increasingly earlier spring in high latitudes must correctly account for contrasting physical and biogeochemical ecosystem-atmosphere exchange in heterogeneous landscapes.

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Держатели документа:
Lund Univ, Dept Phys Geog & Ecolsyst Anal, SE-22363 Lund, Sweden
Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England
VN Sukachev Forest Inst, Krasnoyarsk 660036, Russia
Univ Helsinki, Dept Phys Sci, FI-00014 Helsinki, Finland
Max Planck Inst Biogeochem, D-07701 Jena, Germany

Доп.точки доступа:
Arneth, A...; Lloyd, J...; Shibistova, O...; Sogachev, A...; Kolle, O...

[Text] / J. . Viers [et al.] // Biogeochemistry. - 2013. - Vol. 113, Is. 01.03.2013. - P435-449, DOI 10.1007/s10533-012-9770-8. - Cited References: 72. - We would like to thank the Ministere de l'Educational Nationale et de la Recherche, le Ministere des Affaires Etrabngers et l'INSU/CNRS (through the EC2CO program) of France for supporting this work. . - 15. - ISSN 0168-2563РУБ Environmental Sciences + Geosciences, Multidisciplinary

Аннотация: We measured the seasonal dynamics of major and trace elements concentrations in foliage of larch, main conifer species of Siberia, and we analyzed cryogenic soils collected in typical permafrost-dominated habitats in the Central Siberia. This region offers a unique opportunity to study element fractionation between the soil and the plant because of (i) the homogeneous geological substratum, (ii) the monospecific stands (Larix gmelinii) and (iii) the contrasted habitats (North-facing slope, South-facing slope, and Sphagnum peatbog) in terms of soil temperature, moisture, thickness of the active layer, tree biomass and rooting depth. The variation of these parameters from one habitat to the other allowed us to test the effects of these parameters on the element concentration in larch foliage considered with high seasonal resolution. Statistical treatment of data on larch needles collected 4 times in 3 locations during entire growing season (June-September) demonstrated that : (1) there is a high similarity of foliar chemical composition of larch trees in various habitats suggesting intrinsically similar requirements of larch tree growth for nutrients, (2) the variation of elemental concentrations in larch needles is controlled by the period (within the growing season) and not by the geographical location (South-facing slope, North-facing slope or bog zone) and (3) there are three groups of elements according to their patterns of elements concentration in needles over the growing season from June to September can be identified: (1): nutrient elements [P, Cu, Rb, K, B, Na, Zn, Ni and Cd] showing a decrease of concentration from June to September similar to the behaviour of major nutrients such as N, P and K; (2): accumulating elements [Ca, Mg, Mo, Co, Sr, Mn, Pb and Cr] showing an increase of concentration from June-July to September; (3): indifferent elements [Al, Zr, Fe, Ba, Ti, REEs (Pr, Nd, Ce, La, Gd, Er, Dy, Tb, Lu, Yb, Tm, Sm, Ho, Eu), Y, Th and U] showing a decrease of concentration from June to July and then an increase of concentration to September. A number of micronutrients (e.g., Cu, Zn) demonstrate significant resorption at the end of growing season suggesting possible limitation by these elements. Although the intrinsic requirement seems to be similar among habitats, the total amount of element stored within the different habitats is drastically different due to the differences in standing tree biomass. The partitioning coefficients between soil and larch appear to be among the lowest compared to other environments with variable plants, soils and climates. Applying the "space for time" substitution scenario, it follows that under ongoing climate warming there will be an increase of the element stock following enhanced above-ground biomass accumulation, even considering zero modification of element ratios and their relative mobility. In this sense, the habitats like south-facing slopes can serve as resultant of climate warming effect on element cycling in larch ecosystems for the larger territory of Central Siberia.

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Держатели документа:
[Viers, J.
Pokrovsky, O. S.
Auda, Y.
Beaulieu, E.
Zouiten, C.
Oliva, P.
Dupre, B.] Univ Toulouse 3, CNRS, IRD, GET OMP, F-31400 Toulouse, France
[Prokushkin, A. S.
Kirdyanov, A. V.] Sukachev Inst Forestry SB RAS, Krasnoyarsk 660036, Russia
[Pokrovsky, O. S.] UroRAS, Inst Ecol Problems North, Arkhangelsk, Russia

Доп.точки доступа:
Viers, J.; Prokushkin, Anatoly S.; Прокушкин, Анатолий Станиславович; Pokrovsky, O.S.; Auda, Y.; Kirdyanov, Alexander V.; Кирдянов, Александр Викторович; Beaulieu, E.; Zouiten, C.; Oliva, P.; Dupre, B.; Ministere de l'Educational Nationale et de la Recherche; le Ministere des Affaires Etrabngers; l'INSU/CNRS of France

[Text] / Y. V. Savva [et al.] // Silvae Genet. - 2002. - Vol. 51, Is. 02.03.2013. - P49-55. - Cited References: 40 . - 7. - ISSN 0037-5349РУБ Forestry + Genetics & Heredity

Аннотация: Eight tree-ring characteristics (tree ring width, latewood and earlywood widths and densities, maximum and minimum densities and latewood percentage) were measured densitometrically in 16 Scots pine provenances in the southern taiga, Central Siberia. Age trends were excluded by standardization. It was found that the sensitivity coefficient of latewood width, latewood and maximum densities and latewood percentage has a tendency to decrease in relation to the increasing latitude of seed sources. Northern provenances utilise only the energy resources (heat and light) during the first half of the growing season effectively. The correlation of tree ring series between the local provenance and the other provenances decreases in relation to the increasing latitude difference between seed origins. As a whole, the values of the normalized Euclidean distance, correlation and synchronicity coefficients between the local provenance and the other provenances prove that, for most of the provenances, the interannual variability of the chosen tree ring characteristics reflects the prevailing influence of weather conditions (even for the populations from the northern taiga and forest-tundra zone). The variability of weather conditions determines up to 85% the variability of radial growth and wood density.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Forests, Krasnoyarsk, Russia
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland

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Savva, Y.V.; Schweingruber, F.H.; Kuzmina, N.A.; Vaganov, E.A.

[Text] / R. A. MONSERUD [et al.] // Glob. Biogeochem. Cycle. - 1995. - Vol. 9, Is. 2. - P213-226, DOI 10.1029/95GB00596. - Cited References: 73 . - 14. - ISSN 0886-6236РУБ Environmental Sciences + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: Phytomass (live plant mass) and net primary productivity are major components of the terrestrial carbon balance. A major location for phytomass storage is the subcontinent of Siberia, which is dominated by extensive reaches of taiga (boreal forest). The responsiveness of the phytomass component of the carbon pool is examined by comparing vegetation in the mid-Holocene (4600-6000 years before present) to modern potential vegetation. The mid-Holocene was warmer and moister in middle and northern Siberia than today, producing conditions ideal for boreal forest growth. As a result, both northern and middle taiga were dominated by shade-tolerant dark-needled species that thrive in moist climates. Today, shade-tolerant dark-needled taiga is restricted to western Siberia and the highlands of central Siberia, with its central and eastern components in the mid-Holocene replaced today by light-demanding light-needled species with lower productivity and phytomass. Total phytomass in Siberia in the mid-Holocene was 105.0 +/- 3.1 Pg, compared to 85.9 +/- 3.2 Pg in modern times, a loss of 19.1 +/- 3.1 Pg of phytomass. The reduction in dark-needled northern and middle taiga classes results in a loss of 28.8 Pg, while the expansion of the corresponding light-needled taiga results in a gain of 13.5 Pg, a net loss of 15.3 Pg. The loss is actually greater, because the modern figures are for potential vegetation and not adjusted for agriculture and other anthropogenic disturbances. Given long periods for vegetation to approach equilibrium with climate, the phytomass component of the carbon pool is responsive to climate change. Changes in net primary productivity (NPP) for Siberia between the mid-Holocene and the present were not as large as changes in phytomass. A minor decrease in NPP (0.6 Pg yr(-1), 10%) has occurred under our cooler modern climate, primarily due to the shift from dark-needled taiga in the mid-Holocene to light-needled taiga today.

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Держатели документа:
MOSCOW MV LOMONOSOV STATE UNIV,DEPT GEOG,MOSCOW,RUSSIA
OREGON STATE UNIV,DEPT CIVIL ENGN,CORVALLIS,OR 97331
RUSSIAN ACAD SCI,INST FOREST,SIBERIAN BRANCH,KRASNOYARSK,RUSSIA

Доп.точки доступа:
MONSERUD, R.A.; DENISSENKO, O.V.; KOLCHUGINA, T.P.; TCHEBAKOVA, N.M.

[Text] / N. M. TCHEBAKOVA [et al.] // J. Biogeogr. - 1993. - Vol. 20, Is. 2. - P129-144, DOI 10.2307/2845667. - Cited References: 74 . - 16. - ISSN 0305-0270РУБ Ecology + Geography, Physical

Аннотация: A global vegetation model based on the climatological approach of Budyko is developed. The major vegetation zones of the world are predicted by a two-dimensional ordination of a Dryness Index and Potential Evaporation, which is derived from radiation balance. Mean temperature of the warmest month is also used to separate the Ice/Polar Desert, Tundra, and Taiga zones. Predictions of vegetation distributions are made using a global climate database interpolated to a 0.50 by 0.50 terrestrial grid. The overall impression from examining the resulting global vegetation map is that the modified Budyko model predicts the location and distribution of the world's vegetation fairly well. Comparison between model predictions and Olson's actual vegetation map were based on Kappa statistics and indicate good agreement for Ice/Polar Desert, Tundra, Taiga, and Desert (even though we predict too much Desert). Agreement with Olson's map was fair for predicting the specific location of Tropical Rain Forest and Tropical Savannas, and was good for predicting their general location at a larger scale. Agreement between Olson's map and model predictions were poor for Steppe, Temperate Forest, Tropical Seasonal Forest, and Xerophytic Shrubs, although the predictions for Temperate Forest and Tropical Seasonal Forest improved to fair at a larger scale for judging agreement. Agreement with the baseline map of Olson was poor for Steppe and Xerophytic Shrubs at all scales of comparison. Based on Kappa statistics, overall agreement between model predictions and Olson's map is between fair and good, depending on the scale of comparison. The model performed well in comparison to other global vegetation models. Apparently the calculation of radiation balance and the resulting Dryness Index and Potential Evaporation provides important information for predicting the distribution of the major vegetation zones of the world.

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Держатели документа:
ACAD SCI,INST FOREST,ACADEMGORODOK,660036 KRASNOYARSK,RUSSIA
USDA,INTERMT RES STN,FOREST SERV,MOSCOW,ID 83843
NATL INST PUBL HLTH & ENVIRONM PROTECT,DEPT GLOBAL CHANGE,3720 BILTHOVEN,NETHERLANDS
INT INST APPL SYST ANAL,A-2361 LAXENBURG,AUSTRIA

Доп.точки доступа:
TCHEBAKOVA, N.M.; MONSERUD, R.A.; LEEMANS, R...; GOLOVANOV, S...

[Text] / R. A. Monserud, N. M. Tchebakova // Can. J. For. Res.-Rev. Can. Rech. For. - 1996. - Vol. 26, Is. 6. - P1055-1068, DOI 10.1139/x26-117. - Cited References: 49 . - 14. - ISSN 0045-5067РУБ Forestry

Аннотация: A mountain vegetation model driven by regional climatic parameters was developed for predicting the geographic distribution of the numerous ecosystems of the Sayan Mountain system in southern Siberia. Meteorological data are drawn from normal records of monthly means. Four climatic variables were interpolated to a 10' by 10' grid: temperature, precipitation, vapor pressure, and cloudiness. In addition, albedo was derived by 100-m elevation classes for both windward and leeward slopes as a function of the general type of vegetation surface and the dates of snow occurrence. Ecosystems were classified using a two-dimensional climatic ordination. The first dimension was growing degree-days above a 5 degrees C threshold, and the second was Budyko's dryness index, which is based on annual radiation balance and annual precipitation. The patterns: of predicted vegetation corresponded rather well to observed mapped vegetation. Overall kappa statistics indicated agreement with observed vegetation that varied from fair at the finest resolution (10' by 10' cells) to good at intermediate resolution (30' by 30' cells and 1 degrees by 1 degrees cells) to very good at the coarsest resolution (2 degrees by 2 degrees cells). Focusing on individual vegetation classes, agreement was good to very good for each vegetation class at intermediate resolutions and very good to excellent for each vegetation class at the 2 degrees by 2 degrees resolution. Thus, the general location, pattern, and overall distribution of these mountain ecosystems was accurately predicted. This approach for predicting the spatial distribution of biomes was successfully applied at both the global and subcontinental scale. The successful extension of Budyko's radiation balance approach to mountainous terrain on a finer resolution regional scale indicates the generality of the approach.

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Держатели документа:
RUSSIAN ACAD SCI,FOREST INST,KRASNOYARSK 660036,RUSSIA

Доп.точки доступа:
Monserud, R.A.; Tchebakova, N.M.

/ V. I. Kharuk [et al.] // Arctic, Antarctic, and Alpine Research. - 2013. - Vol. 45, Is. 4. - P526-537, DOI 10.1657/1938-4246-45.4.526 . - ISSN 1523-0430
Аннотация: The goal of the study was to provide an analysis of climate impact before, during, and after the Little Ice Age (LIA) on the larch (Larix gmelinii) tree line at the northern extreme of Siberian forests. Recent decadal climate change impacts on the tree line, regeneration abundance, and age structure were analyzed. The location of the study area was within the forest-tundra ecotone (elevation range 170-450 m) in the Anabar Plateau, northern Siberia. Field studies were conducted along elevational transects. Tree natality/mortality and radial increment were determined based on dendrochronology analyses. Tree morphology, number of living and subfossil trees, regeneration abundance, and age structure were studied. Locations of pre-LIA, LIA, and post-LIA tree lines and refugia boundaries were established. Long-term climate variables and drought index were included in the analysis. It was found that tree mortality from the 16th century through the beginning of the 19th century caused a downward tree line recession. Sparse larch stands experienced deforestation, transforming into tundra with isolated relict trees. The maximum tree mortality and radial growth decrease were observed to have occurred at the beginning of 18th century. Now larch, at its northern boundary in Siberia, is migrating into tundra areas. Upward tree migration was induced by warming in the middle of the 19th century. Refugia played an important role in repopulation of the forest-tundra ecotone by providing a seed source and shelter for recruitment of larch regeneration. Currently this ecotone is being repopulated mainly by tree cohorts that were established after the 1930s. The last two decades of warming did not result in an acceleration of regeneration recruitment because of increased drought conditions. The regeneration line reached (but did not exceed) the pre-LIA tree line location, although contemporary tree heights and stand densities are comparatively lower than in the pre-LIA period. The mean rate of tree line upward migration has been about 0.35 m yr-1 (with a range of 0.21-0.58), which translates to a tree line response to temperature of about 55 m C-1.

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Держатели документа:
V. N. Sukachev Institute of Forest, Krasnoyarsk 660036, Russian Federation
Goddard Space Flight Center, NASA, Code 618, Greenbelt, MD 20771, United States

Доп.точки доступа:
Kharuk, V.I.; Ranson, K.J.; Im, S.T.; Oskorbin, P.A.; Dvinskaya, M.L.; Ovchinnikov, D.V.

/ A. Hofgaard [et al.] // Applied Vegetation Science. - 2010. - Vol. 13, Is. 4. - P460-472, DOI 10.1111/j.1654-109X.2010.01086.x . - ISSN 1402-2001
Аннотация: Question: Is there a need for disturbance mapping integrated in the CircumBoreal Vegetation Mapping Program? Location: Eurasian boreal forest. Disturbance and mapping: The boreal zone is characterized by a multitude of natural and anthropogenic disturbance agents with importance over a wide range of spatial and temporal scales. Disturbance is a prime driver of succession in most of the boreal zone, producing landscape diversity characterized by a large-scale vegetation mosaic of early to late succession states. When mapping the circumboreal vegetation, spatial extent, time involved from disturbance to recovered condition and likelihood of interacting disturbance types are crucial for how current vegetation is interpreted and subsequently included as map characteristics. In this paper we present examples from the boreal zone where natural and/or anthropogenic disturbance regimes dominate the state and distribution of vegetation, and possibilities for assessing the nature and extent of the disturbed regions using remotely sensed data. Conclusion: Disturbed vegetation occupies large areas in the boreal zone and related vegetation successions should be adequately represented when mapping the zone. In regions where the 'potential natural vegetation' is a hypothetical reconstruction from remnants of 'natural' vegetation it would be preferable to use the concept of 'actual real vegetation' for which remote sensing at coarse, medium and fine resolution is an efficient tool. The Land Cover Classification System (LCCS) may offer sufficient flexibility to incorporate information about the disturbance of circumboreal vegetation. В© 2010 International Association for Vegetation Science.

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Держатели документа:
Scott Polar Research Institute, University of Cambridge, United Kingdom
Norwegian Institute for Nature Research, Trondheim, Norway
Norwegian Institute for Nature Research, Tromso, Norway
Faculty of Geography, M.V. Lomonosov Moscow State University, Moscow, Russian Federation
Centre on the Problems of Ecology and Productivity of Forests, Russian Academy of Sciences, Moscow, Russian Federation
Northern Research Institute, Tromso, Norway
Institute of the Industrial Ecology if the North, Kola Science Center, Russian Academy of Sciences, Russian Federation
Sukachev Forest Institute, Akademgorodok Krasnoyarsk, Russian Federation

Доп.точки доступа:
Hofgaard, A.; Rees, G.; Tommervik, H.; Tutubalina, O.; Golubeva, E.; Lukina, N.; Hogda, K.A.; Karlsen, S.R.; Isaeva, L.; Kharuk, V.