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

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Найдено документов в текущей БД: 370

    Effects of soil temperature on the contents of nitrogen compounds in seedlings of Larix gmelini regenerated on permafrost in Central Siberia
/ T. Korotkii, S. G. Prokushkin // Eurasian Journal of Forest Research. - 2002. - Vol. 5. - С. 39-48


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

Доп.точки доступа:
Prokushkin, Stanislav Grigor'yevich; Короткий Тимофей Иванович

    Seasonal and spatial variability in soil CO2 efflux rates for a central Siberian Pinus sylvestris forest
/ 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

    Annual ecosystem respiration budget for a Pinus sylvestris stand in Central Siberia
/ O. Shibistova, G. Zrazhevskaya et al // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 568-589

Аннотация: Using a ground-based and an above-canopy eddy covariance system in addition to stem respiration measurements, the annual respiratory fluxes attributable to soil, stems and foliage were determined for a Scots pine (Pinus sylvestris L.) forest growing in central Siberia. Night-time foliar respiration was estimated on the basis of the difference between fluxes measured below and above the canopy and the stem respiration measurements. Comparison of the effects of night-time turbulence on measured CO2 fluxes showed flux loss above the canopy at low wind speeds, but no such effect was observed for the ground-based eddy system. This suggests that problems with flow homogeneity or flux divergence (both of which would be expected to be greater above the canopy than below) were responsible for above-canopy losses under these conditions. After correcting for this, a strong seasonality in foliar respiration was observed. This was not solely attributable to temperature variations, with intrinsic foliar respiratory capacities being much greater in spring and autumn. The opposite pattern was observed for stem respiration, with the intrinsic respiratory capacity being lower from autumn through early spring. Maximum respiratory activity was observed in early summer. This was not simply associated with a response to higher temperatures but seemed closely linked with cambial activity and the development of new xylem elements. Soil respiration rates exhibited an apparent high sensitivity to temperature, with seasonal data implying a Q(10) of about 7. We interpret this as reflecting covarying changes in soil microbial activity and soil temperatures throughout the snow-free season. Averaged over the two study years (1999 and 2000), the annual respiratory flux was estimated at 38.3 mol C m(-2) a(-1). Of this 0.61 was attributable to soil respiration, with stem respiration accounting for 0.21 and foliar respiration 0.18.

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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; Zrazhevskaya, Galina Kirillovna; Зражевская, Галина Кирилловна

    Remote sensing of photosynthetic-light-use efficiency of a Siberian boreal forest
/ C. J. Nichol, O. Shibistova // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 677-687

Аннотация: The relationship between a physiological index called the photochemical reflectance index (PRI) and photosynthetic light-use-efficiency (LUE) of a Siberian boreal forest during the winter-spring transition, or green-up period, was investigated in 2000. During this time the photosynthetic apparatus was considered under stress as a result of extremes of temperature (from -20 to 35 degreesC) coupled with a high radiation load. Reflectance measurements of four stands were made from a helicopter-mounted spectroradiometer and PRI was calculated from these data. Eddy covariance towers were operating at the four stands and offered a means to calculate LUE. A significant linear relationship was apparent between PRI, calculated from the helicopter spectral data, and LUE, calculated from the eddy covariance data, for the four sites sampled. Reflectance measurements were also made of a Scots pine stand from the eddy covariance tower. Needles were also sampled during the time of spectral data acquisition for xanthophyll pigment determination. Strong linear relationships were observed among PRI, the epoxidation state of the xanthophyll cycle (EPS) and LUE over the green-up period and the diurnal cycle at the canopy scale.

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

Доп.точки доступа:
Nichol, C.J.; Найчол С.Дж.; Shibistova, Olga Borisovna; Шибистова, Ольга Борисовна

    A trace-gas climatology above Zotino, central Siberia
/ J. Lloyd, N. Tchebakova, O. Shibistova // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 749-767

Аннотация: Using light aircraft and at intervals of approximately 14 days, vertical profiles of temperature, humidity, CO2 concentration and C-13/C-12 and O-18/O-16 ratio, as well as concentrations of CH4, CO, H-2 and N2O, from about 80 to 3000 m above ground level have been determined for the atmosphere above a flux measurement tower located near the village of Zotino in central Siberia (60degrees45'N, 89degrees23'E). As well as being determined from flask measurements (typically at heights of 100, 500, 1000, 1500, 2000, 2500 and 3000 m) continuous CO2 concentration profiles at 1 Hz have also been obtained using an infrared gas analyser. This measurement program is ongoing and has been in existence since July 1998. Data to November 2000 are presented and show a seasonal cycle for CO2 concentration of about 25 mumol mol(-1) within the atmospheric boundary layer (ABL) and about 15 mumol mol(-1) in the free troposphere. Marked seasonal cycles in the isotopic compositions Of CO2 are also observed, with that of oxygen-18 in CO2 being unusual: always being depleted in the ABL with respect to the free troposphere above. This is irrespective of whether the CO2 concentration is higher or lower in the free troposphere. We interpret this as indicating a net negative discrimination being associated with the net terrestrial carbon exchange, irrespective of whether photosynthesis or respiration dominates the net carbon flux in this region. During winter flights, large fluctuations in CO2 concentration with height are often observed both within and above the stable ABL. Usually (but not always) these variations in CO2 concentrations are associated with more or less stoichiometrically constant variations in CO and CH4 concentrations. We interpret this as reflecting the frequent transport of polluted air from Europe with very little vertical mixing having occurred, despite the large horizontal distances traversed. This notion is supported by back-trajectory analyses. Vertical profiles Of CO2 concentration with supplementary flask measurements allow more information on the structure and composition of an air mass to be obtained than is the case for flask measurements or for ground-based measurements only. In particular, our data question the notion that there is usually anything like "well mixed background air" in the mid-to-high northern latitudes during the winter months.

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

Доп.точки доступа:
Lloyd, J.; Лойд Дж.; Tchebakova, Nadezhda Mikhailovna; Чебакова, Надежда Михайловна; Shibistova, Olga Borisovna; Шибистова, Ольга Борисовна

    Estimates of regional surface carbon dioxide exchange and carbon and oxygen isotope discrimination during photosynthesis from concentration profiles in the atmospheric boundary layer
/ J.M. Styles et al, N. Tchebakova // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 768-783

Аннотация: The integrating properties of the atmospheric boundary layer allow the influence of surface exchange processes on the atmosphere to be quantified and estimates of large-scale fluxes of trace gases and plant isotopic discrimination to be made. Five flights were undertaken over two days in and above the convective boundary layer (CBL) in a vegetated region in central Siberia. Vertical profiles Of CO2 and H2O concentrations, temperature and pressure were obtained during each flight. Air flask samples were taken at various heights for carbon and oxygen isotopic analysis Of CO2. Two CBL budget methods were compared to estimate regional surface fluxes Of CO2 and plant isotopic discrimination against (CO2)-C-13 and (COO)-O-18-O-16. Flux estimates were compared to ground-based eddy covariance measurements. The fluxes obtained for CO2 using the first method agreed to within 10% of fluxes measured in the forest at the study site by eddy covariance. Those obtained from the second method agreed to within 35% when a correction was applied for air loss out of the integrating column and for subsidence. The values for C-13 discrimination were within the range expected from knowledge Of C-3 plant discriminations during photosynthesis, while the inferred O-18 discrimination varied considerably over the two-day period. This variation may in part be explained by the enrichment of chloroplast water during the day due to evaporation from an initial signature in the morning close to source water. Additional potential complications arising from the heterogeneous nature of the landscape are discussed.

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

Доп.точки доступа:
Styles et al, J.M.; Стайлес Дж.М.; Tchebakova, Nadezhda Mikhailovna; Чебакова, Надежда Михайловна

    Shoot growth and photosynthetic characteristics in larch and spruce affectedbby temperature of the contrasting north and south facing slopes in eastern Siberia
: материалы временных коллективов / T. Koike [и др.] // Proceedings of the seventh symposium on the joint Siberian permafrost studies between Japan and Russia in 1998. - Sapporo : Hokkaido University. - С. 3-12. - Библиогр. в конце ст.

Аннотация: To predict the future vegetation change and biomass production in Siberian "permafrost Taiga", we evaluate the temperature effects on the growth and gas exchange characteristic of dominant species of larch and spruce under the contrasting north- and south-facing slope in Tura Experiment Forest in eastern Siberia. Soil temperature at 0-5 cm depth of north-facing slope was 2-5C lower. Needle length of larch and spruce grown on north-facing slope was longer than on south-one. There was no difference in the needle density.

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

Доп.точки доступа:
Koike, T.; Койке Т.; Mori, S.; Мори С.; Matsuura, Y.; Матсуура У.; Prokushkin, Staniclav Grigor'evich; Прокушкин Станислав Григорьевич; Zyryanova, Olga Alexandrovna; Зырянова Ольга Александровна; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович
Имеются экземпляры в отделах:
(18.09.2003г. Инв.б.н - бесплатно) (свободен)

    The depth of active layer along a slope as affected by the fire history of ground vegetation
: материалы временных коллективов / A. Takenaka, Y. Matsuura, A. P. Abaimov // Proceedings of the seventh Symposium on the joint Seberian Permafrost studies between Japan and Russia in 1998. - 1999. - С. 33-39. - рус. - Библиогр. в конце ст.

Аннотация: Continuous measurements of soil temperature over a year revealed that the thawing period was longer at a burnt area where the mat layer is thin. In addition, the temperature of the thawed soil was high in the burnt area throughout the summer season compared to sites under closed forest canopy with a thick mat layer.

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

Доп.точки доступа:
Matsuura, Y.; Матсуура У.; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович; Такенака А.
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ОРФ (26.02.2004г. (1 экз.) - Б.ц.) - свободны 1

    Summer temperature in northeastern Siberia since 1642 reconstructed from tracheid dimensions and cell numbers of Larix cajanderi
/ I.P. Panyushkina, M.K. Hughes, E.A. Vaganov, M.A.R. Munro // Canadian Journal of Forest Research. - 2003. - Vol. 33, № 10. - С. 1905-1914


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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:
Panyushkina, Irina Petrovna; Панюшкина Ирина Петровна; Hughes, M.K.; Хугес М.К.; Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Munro, M.A.R.; Манро М.А.Р.

    The influence of hypothermic conditions on the content of Nitrogenous substances in Larix gmelinii needles and stems in Juvenile stage
: материалы временных коллективов / T.I Korotkiy [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. 59-68. - Библиогр. в конце ст.

Аннотация: The data obtained show, that the accumulation of nitrogen is aboveground parts of larch in juvenile stage depends on their physiological activity and the temperature of soil.

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

Доп.точки доступа:
Korotkiy, Timofey Ivanovich; Короткий Тимофей Иванович; Prokushkin, Staniclav Grigor'yevich; Прокушкин Станислав Григорьевич; Mori, S.; Мори С.; Koike, T.; Койке Т.
Имеются экземпляры в отделах:
РСФ (28.09.2005г. (1 экз.) - Б.ц.) - свободны 1

    Climatic factors influencing fluxes of dissolved organic carbon from the forest floor in a continuous-permafrost Siberian watershed
: материалы временных коллективов / A. S. Prokushkin [и др.] // Canadian Journal of Forest Research. - 2005. - Vol. 35, : 9. - С. 2130-2140

Аннотация: Fluxes of dissolved organic carbon (DOC) in forested watersheds underlain by permafrost are likely to vary with changes in climatic regime that increase soil moisture and temperature. It was examined the effects of temporal and spatial variations in soil temperature and moisture on DOC fluxes from the forest floor contrasting north- and south-facing slopes in central Siberia.

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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:
Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Kajimoto, T.; Каджимото Т; Prokushkin, Staniclav Grigor'evich; Прокушкин Станислав Григорьевич; McDowell, W.H.; Макдоуелл В.Х.; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович; Matsuura, Y.; Матсуура У.

    Prolonged changes in summer temperature and radial increment of larch trees at the upper timberline in the Altai-Sayan Mountains
: материалы временных коллективов / O. Ch. Oydupaa, M. M. Naurzbaev // 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. 73


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

Доп.точки доступа:
Naurzbaev, Mukhtar Mukhametovich; Наурзбаев, Мухтар Мухаметович; Ойдупаа О.Ч.

    CO2 emissions of the non-tree vegetation cover in larch (Larix gmelinii (Rupr.) Rupr.) stands in the Central Evenkia region of Siberia, Russia
: материалы временных коллективов / O. V. Masyagina [и др.] // Eurasian journal of forest research. - 2006. - Vol. 9-1. - С. 17-28

Аннотация: CO2 emissions from various vegetation components were studied in larch-dominated stands (Larix gmelinii (Rupr.) Rupr.) in the Central Evenkia region of Siberia, Russia, during growing season in 2001. We found a clear relationship between air temperature and CO2 emission rate of the dominant vegetation components (such as Sphagnum and green mosses, lichens, and dwarf shrubs). The CO2 emission rate of Sphagnum, green mosses, and lichens (measured as CO2 evolution from their surface) ranged from 0.04 to 0.24 mg CO2 g(-1) oven-dry weight (odw) h(-1) during growing season. The CO2 emission rate of the aboveground parts of dwarf shrubs ranged from 0.65 to 5.54 mg CO2 g(-1) odw h(-1). The contribution of the different components of the vegetation cover varied among stand types.

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

Доп.точки доступа:
Masyagina, Oksana Viktorovna; Масягина, Оксана Викторовна; Prokushkin, Stanislav Grigor'yevich; Прокушкин Станислав Григорьевич; Mori, S.; Мори С.; Takagi, K.; Такаги К.; Nomura, M.; Номура М.; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович

    The response of the soil CO2 emissions of a deciduou mixed stands in Hokkaido (Japan) to doubling of atmospheric carbon dioxide concentration
: материалы временных коллективов / O. V. Masyagina, S. G. Prokushkin, T. Koike // Лесные экосистемы Северо-Восточной Азии и их динамика: Материалы международной конференции. - Владивосток : Дальнаука, 2006. - С. 64-67. - Библиогр. в конце ст.

Аннотация: We examined effect of soil temperature and mineral soil water content on soil respiration regarding to CO2 conditions and soil type. Only a few correlations between soil respiration and ecological factors had been found. Thus, there was one negative significant correlation between soil respiratiion and Tsoil of volcanic soil at elevated CO2 in July (r2=-0.67, p=0.002, N=18). We found negative correlations between Rsoil and MSWC in volcanic soil at elevated CO2 in July (r2=-0.57, p=0.015, N=18), in brown forest soil at elevaedt CO2 in August (r2=-0.53, p=0.023, N=18), and in brown forest soil at ambient CO2 in October (r2=-0.59, p=0.010, N=18). We did not find any effect of soil type on soil respiration during vegetative period.

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

Доп.точки доступа:
Prokushkin, Staniclav Grigor'evich; Прокушкин Станислав Григорьевич; Koike, T.; Койке Т.; Масягина, Оксана Викторовна
Имеются экземпляры в отделах:
РСФ (25.10.2006г. (1 экз.) - Б.ц.) - свободны 1
502
S 98

    CO2, CH4 and N2O fluxes from a larch forest soil in Central Siberia
: материалы временных коллективов / T. Morishita [и др.] // Symptom of environmental change in Siberian permafrost region: proceedings of the International symposium of JSPS core to core program between Hokkaido university and Martin Luther university Halle-Wittenberg in 29-30 November 2005, Sapporo, Japan. - Sapporo : Hokkaido University Press, 2006. - С. 1-9. - Библиогр. в конце ст.
УДК

Аннотация: The CO2 flux was positively correlated with soil temperature and negatively correlated with soil moisture. The CO2 flux was lowest in the Aulacomnium patch among the patches because of the low soil temperature and high soil moisture. The CO2 emission and CH4 uptake were smaller the previously reported values. The C/N ratio in soil might be an important factor explaining the low CO2 emission, and the low CH4 production may be related to the microtopography at the site.

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

Доп.точки доступа:
Morishita, T.; Моришита Т.; Matsuura, Y.; Мацуура Й; Zyryanova, Olga Alexandrovna; Зырянова Ольга Александровна; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович
Имеются экземпляры в отделах:
РСФ (05.12.2006г. (1 экз.) - Б.ц.) - свободны 1

    Interannual growth response of Norway spruce to climate along an altitudinal gradient in the Tatra Mountains, Poland
: материалы временных коллективов / Y. Savva, E. A. Vaganov et al. // Trees. Structure and function. - 2006. - Vol. 20, № 6. - С. 735-746. - Библиогр. в конце ст.

Аннотация: Ring-width chronologies of Picea abies (L.) Karst. from ten sites in the Tatra Mountains, Poland, were developed to explore growth/climate responses in stands along an altitudinal gradient ranging from 839 to 1468 m a.s.l. There were positive relationships between current-year radial growth and mean monthly temperatures in March, April, June, July, but with increasing elevation, the strength of this correlation declined for March-April and increased for June-July temperatures.The mean monthly temperature in October of the previous year positively influenced radial growth of trees at all sites. Lower mean temperatures in January negatively affected growth of trees at high-elevation sites. Trees at the low-elevation sites responded positively to a warm early spring, whereas trees at high-elevation sites showed positive growth responses to higher summer temperatures.

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

Доп.точки доступа:
Savva, Yuliya Vladimirovna; Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович
Имеются экземпляры в отделах:
Др (16.04.2007г. (1 экз.) - Б.ц.) - свободны 1

    Separating the climatic signal from tree-ring width and maximum latewood density records
: материалы временных коллективов / // Trees. Structure and Function. - 2007. - Т. 21, № 1. - С. 37-44. - Библиогр. в конце ст.

Аннотация: We propose a technique for separating the climatic signal which is contained in two tree-ring parameters widely used in dendroclimatology. The method is based on the removal of the relationship between tree-ring width and maximum latewood density observed for narrow tree rings from high latitudes. The new technique is tested on data from three larch stands located along the northern timberline in Eurasia. The analysis confirms the great importance of summer temperature for tree radial growth and tree -ring formation. These results are consistent with the known dynamics of tree-ring growth in high latitudes and mechanisms of tree-ring growth in high latitudes and mechanisms of tree-ring formation.

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Полный текст

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

Доп.точки доступа:
Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Hughes, M.K.; Хугес М.К.; Кирдянов, Александр Викторович
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ИФ (18.06.2007г. (1 экз.) - Б.ц.) - свободны 1

    Prolonged changes in summer temperature and radial increment of larch trees at the upper timberline in the Altai-Sayan mountains
: материалы временных коллективов / O. CH. Oydupaa, M. M. Naurzbaev // Climate change and their impact on boreal and temperate forests: Abstracts of the International Conference (June 5-7, 2006, Ekaterinburg, Russia). - Ekaterinburg : Ural State Forest Engineering University. - С. 73


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

Доп.точки доступа:
Naurzbaev, Mukhtar Mukhametovich; Наурзбаев, Мухтар Мухаметович; Ойдупаа О.Ч.
Имеются экземпляры в отделах:
РСФ (04.02.2008г. (1 экз.) - Б.ц.) - свободны 1

    Evidence of evergreen conifer invasion into larch dominated forests during recent decades in Central Siberia
: материалы временных коллективов / V. I. Kharuk, K. Ranson, M. Dvinskaya // Eurasian Journal of Forest Research. - 2007. - Vol. 10-2. - С. 163-171. - Библиогр. в конце ст.

Аннотация: Models of climate warming predict the migration of "warm-adapted' species to habitates of "cold-adapted" species. Here we show evidence of expansion of "dark-needle" conifers (DNC: Siberian pine, spruce and fir) into the habitat of larch, the leader in adaptation to harsh climatic conditions in Asia. The studies were made along two transects oriented from the western and southern borders of a larch dominated forest to its center. The invasion of DNC into the historical larch habitat was quantified as an increase of the proportion of those species both in the overstory and in regeneration. The age structure of regeneration showed that regeneration occurred mainly during the last 2-3 decades. In particular warm winter temperatures promote the survival regenerated Siberian pine. The results obtained indicate the climate-driven migration of Siberian pine, spruce and fir into traditional zone of larch dominance. Substitution of a deciduous conifer (larch) by evergreen conifers decreases the albedo and may provide positive feedback for temperature increases.

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

Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав Иванович
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    Dendroclimatological evidence of climate changes across Siberia
: материалы временных коллективов / V. V. Shishov, E. A. Vaganov // Environmental change in Siberia: earth observation, field studies and modelling. - Dordrecht et. al. : Springer, 2010. - С. 101-114. - Библиогр. в конце ст.

Аннотация: A major focus of the study described here is an attempt to reveal the nature of local and any widespread tree-growth responses to the recent warming seen in the industrial observations. Namely, this chapter didcusses spatial variation in the trends of radial tree-ring growth in Siberia and Far EAST DURING DIFFERENT PERIODS OF THE 18TH CENTURIES. That distribution of trends is compared with spatial NDVI trends and temperature changes in the northern hemisphere over the past 20 years.

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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:
Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Шишов, Владимир Валерьевич