/ 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.
WOS,
Scopus
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
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
w10=
Найдено документов в текущей БД: 170
Estimates of regional surface carbon dioxide exchange and carbon and oxygen isotope discrimination during photosynthesis from concentration profiles in the atmospheric boundary layer
Assessment of the potential rates of CO2 and N2O release and soil factors of burnt and unburnt forest soils in the Northern taiga
: материалы временных коллективов / O. V. Menyaylo [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. 189-194. - Библиогр. в конце ст.
Аннотация: It is marked, that during four year period of research soil respiration rate was essentially dependent on both microrelief elements (0.4-5.umol CO2/m2/s) and meteorological conditions of a year (1.0-3.77 umol CO2/m2/s). For the control plot, irrespectively for microrelief, the presence of powerfully developed litter and great number of roots have had the main direct effect on CO2-emission.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Menyaylo, Oleg Vladimirovich; Меняйло, Олег Владимирович; Menyailo, Lidiya Nikolayevna; Меняйло Лидия Николаевна; Sorokin, Nikolay Dmitriyevich; Сорокин, Николай Дмитриевич; Prokushkin, Staniclav Grigor'evich; Прокушкин Станислав Григорьевич; Abaimov, Anatoly Platonovich ; Абаимов Анатолий Платонович
Аннотация: It is marked, that during four year period of research soil respiration rate was essentially dependent on both microrelief elements (0.4-5.umol CO2/m2/s) and meteorological conditions of a year (1.0-3.77 umol CO2/m2/s). For the control plot, irrespectively for microrelief, the presence of powerfully developed litter and great number of roots have had the main direct effect on CO2-emission.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Menyaylo, Oleg Vladimirovich; Меняйло, Олег Владимирович; Menyailo, Lidiya Nikolayevna; Меняйло Лидия Николаевна; Sorokin, Nikolay Dmitriyevich; Сорокин, Николай Дмитриевич; Prokushkin, Staniclav Grigor'evich; Прокушкин Станислав Григорьевич; Abaimov, Anatoly Platonovich ; Абаимов Анатолий Платонович
Fluxes and activity of dissolved organic carbon in larch ecosystems of the Northern part of Central Siberia
: 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
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
РСФ
S 55
S 55
Short-term microbial kinetics of soil microbial respiration - A general parameter across scales
: 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
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
Potential change in lodgepole pine site index and distribution under climatic change in Alberta
: материалы временных коллективов / Robert A. Monserud [и др.] // Canadian Journal of Forest Research. - 2008. - Vol. 38, № 2. - С. 343-352. - Библиогр. в конце ст.
Аннотация: We estimated the impact of global climate change on lodgepole pine site productivity in Alberta based on the Alberts Climate Model and the A2 SRES climate change scenario projections from three global circulation models (CGCM2, HADCM3, and ECHAM4). Cosiderable warming ia apparent in all three models. On average, the increases in mean GDD5 (growing degree-day 5 degrees C) are 18%, 38%, and 65% by the 2020s, 2050s, respectively. Change in precipitation is essentially nil. This results in proportioanal increases in dryness index. We used the dryness index to predict the potential future range and GDD5 to predict its potential productivity.
Scopus,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Monserud, R.A.; Монсеруд Р.А.; Yang, Yugine; Янг И. Юджин; Huang, Shongming; Хуанг С.С.; Tchebakova, Nadezhda Mikhailovna; Чебакова, Надежда Михайловна
Аннотация: We estimated the impact of global climate change on lodgepole pine site productivity in Alberta based on the Alberts Climate Model and the A2 SRES climate change scenario projections from three global circulation models (CGCM2, HADCM3, and ECHAM4). Cosiderable warming ia apparent in all three models. On average, the increases in mean GDD5 (growing degree-day 5 degrees C) are 18%, 38%, and 65% by the 2020s, 2050s, respectively. Change in precipitation is essentially nil. This results in proportioanal increases in dryness index. We used the dryness index to predict the potential future range and GDD5 to predict its potential productivity.
Scopus,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Monserud, R.A.; Монсеруд Р.А.; Yang, Yugine; Янг И. Юджин; Huang, Shongming; Хуанг С.С.; Tchebakova, Nadezhda Mikhailovna; Чебакова, Надежда Михайловна
Potencial climate-induced vegetation change in Siberia in the twenty-first century
: материалы временных коллективов / N. M. Tchebakova, E. I. Parfenova, A. J. Soja // Environmental change in Siberia: earth observation, field studies and modelling. - Dordrecht et. al. : Springer, 2010. - С. 67-82. - Библиогр. в конце ст.
Аннотация: Analyses demonstrate the far-reaching effects of a changing climate on vegetation cover. Hot spots of potential Siberian vegetation change are predicted for 1990. Observations of vegetation change in Siberia have already been documented in the literature. Vegetation habitats should be significantly perturbed by 2020, and markedly perturbed by 2080. Because of a dryer climate, forest-steppe and steppe-ecosystems, rather than forests, are predicted to dominate central Siberian landscapes. Despite the predicted increase in warming, permafrost is not predicted to thaw deep enough to support dark taiga over the Siberian plain, where the larch taiga will cntinue to be the dominant zonobiome. On the contrary, in the southern mountains in the absence of permafrost, dark taiga is predicted to remain the dominant orobiome.
Полный текст
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Parfenova, Elena Ivanovna; Парфенова, Елена Ивановна; Soja, A.J.; Соджа А.Дж.; Чебакова, Надежда Михайловна
Аннотация: Analyses demonstrate the far-reaching effects of a changing climate on vegetation cover. Hot spots of potential Siberian vegetation change are predicted for 1990. Observations of vegetation change in Siberia have already been documented in the literature. Vegetation habitats should be significantly perturbed by 2020, and markedly perturbed by 2080. Because of a dryer climate, forest-steppe and steppe-ecosystems, rather than forests, are predicted to dominate central Siberian landscapes. Despite the predicted increase in warming, permafrost is not predicted to thaw deep enough to support dark taiga over the Siberian plain, where the larch taiga will cntinue to be the dominant zonobiome. On the contrary, in the southern mountains in the absence of permafrost, dark taiga is predicted to remain the dominant orobiome.
Полный текст
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Parfenova, Elena Ivanovna; Парфенова, Елена Ивановна; Soja, A.J.; Соджа А.Дж.; Чебакова, Надежда Михайловна
Trophic adaptation of the Siberian moth in its native range and beyond the distribution boudary
: материалы временных коллективов / N. I. Kirichenko, Yu. N. Baranchikov // 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. 132-135. - Библиогр. в конце ст.
Аннотация: This is a short review of our recent studies on trophic adaptation of a boreal forest pest, the Siberian moth in its native range, North Asia and in Central Europe where the species is believed to invade in a near future. In Europe, the hierarchy in suitability of host plant genera (increasing from two-needle pines, spruce, fir, to larch) remains similar to that in the pest range. Besides European plants, some North American conifers from genera which do not exist in the pest habitat can be served as potential hosts for the insect.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Baranchikov, Yury Nikolayevich; Баранчиков Юрий Николаевич; Кириченко, Наталья Ивановна
Аннотация: This is a short review of our recent studies on trophic adaptation of a boreal forest pest, the Siberian moth in its native range, North Asia and in Central Europe where the species is believed to invade in a near future. In Europe, the hierarchy in suitability of host plant genera (increasing from two-needle pines, spruce, fir, to larch) remains similar to that in the pest range. Besides European plants, some North American conifers from genera which do not exist in the pest habitat can be served as potential hosts for the insect.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Baranchikov, Yury Nikolayevich; Баранчиков Юрий Николаевич; Кириченко, Наталья Ивановна
Analysis of the ability of large-scale reanalysis data to define Siberian fire danger in preparation for future fire weather
: материалы временных коллективов / A. J. Soja et al, A. I. Sukhinin // 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. 182-184. - Библиогр. в конце ст.
Аннотация: Wildfire is the dominant natural disturbance in boreeal regions, which act as a catalyst for regulating successional processes under the control of weather and climate. Large-scale reanalysis and ground-station interpolated meteorological data are used to estimate local- and regional-scale fire weather for a normal and an extreme fire year. The ability of large-scale weather data to estimate fire weather provides confidence in the relevance of large-scale data to be used to enhance fire weather prediction in remote regions where station data are sparse and also its potential use in estimating large-scale future fire danger.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Soja , A.J.; Соджа А.Дж.; Sukhinin, Anatoly Ivanovich; Сухинин, Анатолий Иванович
Аннотация: Wildfire is the dominant natural disturbance in boreeal regions, which act as a catalyst for regulating successional processes under the control of weather and climate. Large-scale reanalysis and ground-station interpolated meteorological data are used to estimate local- and regional-scale fire weather for a normal and an extreme fire year. The ability of large-scale weather data to estimate fire weather provides confidence in the relevance of large-scale data to be used to enhance fire weather prediction in remote regions where station data are sparse and also its potential use in estimating large-scale future fire danger.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Soja , A.J.; Соджа А.Дж.; Sukhinin, Anatoly Ivanovich; Сухинин, Анатолий Иванович
Temporal and spatial variability of atmospheric aerosols at the ZOTTO observatory in Central Siberia
: материалы временных коллективов / A. V. Panov [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. 333-337. - Библиогр. в конце ст.
Аннотация: Siberia is currenly poorly represented in the system of global atmospheric observations. The lack of surface-based observations concerns the properties of atmospheric aerosol particles especially with respect to potential climate change. Here we report the first statistical analysis of the four years data observations at the ZOTTO observatory in Central Siberia aimed to assess the representative integral particle, seasonal variations of the aerosol, and possible sources of aerosol over the large Siberian forest area.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Panov, Alexey Vasil'yevich; Панов, Алексей Васильевич; Heintzenberg, J.; Хейценберг Дж.; Birmili, W.; Бирмили В.; Otto, R.; Отто Р.; Andreae, M.; Андреэ М.
Аннотация: Siberia is currenly poorly represented in the system of global atmospheric observations. The lack of surface-based observations concerns the properties of atmospheric aerosol particles especially with respect to potential climate change. Here we report the first statistical analysis of the four years data observations at the ZOTTO observatory in Central Siberia aimed to assess the representative integral particle, seasonal variations of the aerosol, and possible sources of aerosol over the large Siberian forest area.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Panov, Alexey Vasil'yevich; Панов, Алексей Васильевич; Heintzenberg, J.; Хейценберг Дж.; Birmili, W.; Бирмили В.; Otto, R.; Отто Р.; Andreae, M.; Андреэ М.
The potential impact of CO2 and air temperature increases on krummholz transformation into arborescent form in the southern Siberian Mountains
: материалы временных коллективов / V. I. Kharuk, M. Dvinskaya, S.T. Im, K. Ranson // Arctic, Antarctic and Alpine Research. - 2011. - Vol. 43, № 4. - С. 593-600. - Библиогр. в конце ст.
Аннотация: Trees in the southern Siberian Mountains forest-tundra ecotone have considerably increased their radial and apical growth increments during the last few decades. This leads to the widespread vertical transformation of mat and prostrate krummholz forms of larch (Larix sibirica Ledeb) and Siberian pine (Pinus sibirica Du Tour). An analysis of the radial growth increments showed that these transformations began in the mid-1980s. Larch showed a greater resistance to the harsh alpine environment and attained a vertical growth form in areas where Siberian pine is still krummholz and etc.
Scopus,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Im, Sergey Tkhekdyeyevich; Им, Сергей Тхекдеевич; Харук, Вячеслав Иванович
Имеются экземпляры в отделах:
ЧЗ (05.03.2008г. (1 экз.) - Б.ц.) - свободны 1
Аннотация: Trees in the southern Siberian Mountains forest-tundra ecotone have considerably increased their radial and apical growth increments during the last few decades. This leads to the widespread vertical transformation of mat and prostrate krummholz forms of larch (Larix sibirica Ledeb) and Siberian pine (Pinus sibirica Du Tour). An analysis of the radial growth increments showed that these transformations began in the mid-1980s. Larch showed a greater resistance to the harsh alpine environment and attained a vertical growth form in areas where Siberian pine is still krummholz and etc.
Scopus,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Im, Sergey Tkhekdyeyevich; Им, Сергей Тхекдеевич; Харук, Вячеслав Иванович
Имеются экземпляры в отделах:
ЧЗ (05.03.2008г. (1 экз.) - Б.ц.) - свободны 1
Выделение потенциальных местообитаний видов растений с использованием ГИС
[Текст] = Determination of potential habitat types of plants using GIS : материалы временных коллективов / С. Д. Бабой // 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. 3-5. - Библиогр.: с. 5
Аннотация: Process of determination of potential habitats involves several steps: a) the choice of species, b) study of ecology of the species, c) entry into the GIS database on the occurrence of certain species in the landscape and ecological definitions (a series of forest type, forest type, the natural-ecological zone, etc.) or a point mapping of species (mainly for the endemics)
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Baboy Semyen Dmitriyevich
Аннотация: Process of determination of potential habitats involves several steps: a) the choice of species, b) study of ecology of the species, c) entry into the GIS database on the occurrence of certain species in the landscape and ecological definitions (a series of forest type, forest type, the natural-ecological zone, etc.) or a point mapping of species (mainly for the endemics)
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Baboy Semyen Dmitriyevich
Влияние изреживания сосновых молодняков в красноярской лесостепи на их радиальный прирост
[Текст] = Impact of thinning on radial increment of pine forests originated in former agricultural lands in Krasnoyarsk forest-steppe : материалы временных коллективов / И. И. Маркова // 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. 24-26. - Библиогр.: 2 назв.
Аннотация: The objects of research were pine stands, formed naturally in the former agricultural lands in Krasnoyarsk forest-steppe. Trial and control plots were established in the stands, after thinning of different intensity (93% and 57% of number of stems). The work is based on the experimental data, obtained during the analysis of transverse slices images of model trees at the root collar. Realization of the potential productivity of individual trees as a result of thinning is mostly expressed in trees of higher ranks, and only afetr intensive thinning.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Markova I.I.
Аннотация: The objects of research were pine stands, formed naturally in the former agricultural lands in Krasnoyarsk forest-steppe. Trial and control plots were established in the stands, after thinning of different intensity (93% and 57% of number of stems). The work is based on the experimental data, obtained during the analysis of transverse slices images of model trees at the root collar. Realization of the potential productivity of individual trees as a result of thinning is mostly expressed in trees of higher ranks, and only afetr intensive thinning.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Markova I.I.
Xylem plasticity allows rapid hydraulic adjustment to annual climatic variability
/ M. . Bryukhanova, P. . Fonti // Trees-Struct. Funct. - 2013. - Vol. 27, Is. 3. - P485-496, DOI 10.1007/s00468-012-0802-8. - Cited References: 45. - This study was supported by Swiss National Foundation through an International short visit (Grant number: #131408) and through the cooperation on the project INTEGRAL (#121859). We would like to thank David Frank and Georg von Arx for their assistance and critical discussion of an earlier version of the manuscript, and Kathlene English and Gregory King for the English review.
. - 12. - ISSN 0931-1890
РУБ Forestry
Аннотация: Thanks to acclimation, trees overcome environmental changes and endure for centuries. The anatomy of water conducting cells is an important factor determining plant success. Forming cells are coupled with the environment and their properties are naturally archived in the wood. Its variability across tree rings can thus provide a retrospective of plant's hydraulic adjustments. In this work, we measured lumen and wall thickness of tracheids along tree-rings to explore how trees regulate their conducting system under variable plant-water conditions. Tracheids were measured along 51 dated rings of five mature Larix decidua and Picea abies trees from a low elevation site. Anatomical-based chronologies of annual growth performance, hydraulic conductance and safety, and construction costs were built. Similarities among chronologies and the relation to monthly climate data were analyzed. Most parameters displayed high annual plasticity which was partly coherent among trees and mostly associated with radial growth. In general, summer drought reduced growth and potential hydraulic conductivity of the forming ring, and increased hydraulic safety and construction costs. To evaluate the functional relevance of the annual acclimation, the conductivity of the forming ring relative to the entire sapwood needs to be assessed.
Полный текст,
WOS,
Scopus
Держатели документа:
[Bryukhanova, Marina] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Fonti, Patrick] WSL Swiss Fed Res Inst, CH-8903 Zurich, Switzerland
Доп.точки доступа:
Bryukhanova, M...; Fonti, P...
Рубрики:
EARLYWOOD VESSELS
PINUS-SYLVESTRIS
WOOD DENSITY
TRACHEID DIMENSIONS
SHADE-TOLERANCE
SCOTS PINE
DROUGHT
GROWTH
PLANTS
VULNERABILITY
Кл.слова (ненормированные):
Tree-ring anatomy -- Tracheid-cell chronologies -- Plant-water relations -- Larix decidua -- Picea abies
EARLYWOOD VESSELS
PINUS-SYLVESTRIS
WOOD DENSITY
TRACHEID DIMENSIONS
SHADE-TOLERANCE
SCOTS PINE
DROUGHT
GROWTH
PLANTS
VULNERABILITY
Кл.слова (ненормированные):
Tree-ring anatomy -- Tracheid-cell chronologies -- Plant-water relations -- Larix decidua -- Picea abies
Аннотация: Thanks to acclimation, trees overcome environmental changes and endure for centuries. The anatomy of water conducting cells is an important factor determining plant success. Forming cells are coupled with the environment and their properties are naturally archived in the wood. Its variability across tree rings can thus provide a retrospective of plant's hydraulic adjustments. In this work, we measured lumen and wall thickness of tracheids along tree-rings to explore how trees regulate their conducting system under variable plant-water conditions. Tracheids were measured along 51 dated rings of five mature Larix decidua and Picea abies trees from a low elevation site. Anatomical-based chronologies of annual growth performance, hydraulic conductance and safety, and construction costs were built. Similarities among chronologies and the relation to monthly climate data were analyzed. Most parameters displayed high annual plasticity which was partly coherent among trees and mostly associated with radial growth. In general, summer drought reduced growth and potential hydraulic conductivity of the forming ring, and increased hydraulic safety and construction costs. To evaluate the functional relevance of the annual acclimation, the conductivity of the forming ring relative to the entire sapwood needs to be assessed.
Полный текст,
WOS,
Scopus
Держатели документа:
[Bryukhanova, Marina] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Fonti, Patrick] WSL Swiss Fed Res Inst, CH-8903 Zurich, Switzerland
Доп.точки доступа:
Bryukhanova, M...; Fonti, P...
The 21(st) century climate change effects on the forests and primary conifers in central Siberia
/ N. M. Tchebakova, E. I. Parfenova // Bosque. - 2012. - Vol. 33, Is. 3. - P253-259, DOI 10.4067/S0717-92002012000300004. - Cited References: 22. - We ackowledge the support of the RFFI project 10-05-00941, the NASA LCLUC NEESPI project and NASA Interdisciplinary Science NNH09ZDA001N-IDS.
. - 7. - ISSN 0717-9200
РУБ Ecology + Forestry
Кл.слова (ненормированные):
climate warming -- bioclimatic models -- major conifer ranges -- Central Siberia
Аннотация: Regional studies have shown that winters warmed 2-3 degrees C while summers warmed 1-2 degrees C during the1960-2010 period in central Siberia. Increased warming predicted from general circulation models (GCMs) by the end of the century is expected to impact Siberian vegetation. Our goal is to evaluate the consequences of climate warming on vegetation, forests, and forest-forming tree species in central Siberia. We use our envelope-type bioclimatic models of the Siberian forests and major tree conifer species based on three climatic indices which characterise their warmth and moisture requirements and cold resistance, and on one soil factor that charactrises their tolerance to permafrost. Coupling our bioclimatic models with the climatic indices and the permafrost distributions, we predict the potential habitats of forests and forest-forming tree species in current climate conditions and also in the 2080 projected climate. In the 2080 drier climate conditions, Siberian forests are simulated to decrease significantly and shift northwards while forest-steppe and steppe would come to dominate 50 % of central Siberia. Permafrost is not predicted to thaw deep enough to sustain dark (Pinus sibirica, Abies sibirica, and Picea obovata) taiga. Dahurian larch (L. gmelinii+cajanderi), which is able to withstand permafrost, would remain the dominant tree species. Light conifers (Larix spp. and Pinus sylvestris) may gain an advantage over dark conifers in a predicted dry climate due to their resistance to water stress and wildfire. Habitats for new temperate broadleaf forests, non-existent in Siberia at present, are predicted by 2080.
WOS,
Scopus
Держатели документа:
[Tchebakova, Nadezda M.
Parfenova, Elena I.] Russian Acad Sci, VNSukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Tchebakova, N.M.; Parfenova, E.I.
Кл.слова (ненормированные):
climate warming -- bioclimatic models -- major conifer ranges -- Central Siberia
Аннотация: Regional studies have shown that winters warmed 2-3 degrees C while summers warmed 1-2 degrees C during the1960-2010 period in central Siberia. Increased warming predicted from general circulation models (GCMs) by the end of the century is expected to impact Siberian vegetation. Our goal is to evaluate the consequences of climate warming on vegetation, forests, and forest-forming tree species in central Siberia. We use our envelope-type bioclimatic models of the Siberian forests and major tree conifer species based on three climatic indices which characterise their warmth and moisture requirements and cold resistance, and on one soil factor that charactrises their tolerance to permafrost. Coupling our bioclimatic models with the climatic indices and the permafrost distributions, we predict the potential habitats of forests and forest-forming tree species in current climate conditions and also in the 2080 projected climate. In the 2080 drier climate conditions, Siberian forests are simulated to decrease significantly and shift northwards while forest-steppe and steppe would come to dominate 50 % of central Siberia. Permafrost is not predicted to thaw deep enough to sustain dark (Pinus sibirica, Abies sibirica, and Picea obovata) taiga. Dahurian larch (L. gmelinii+cajanderi), which is able to withstand permafrost, would remain the dominant tree species. Light conifers (Larix spp. and Pinus sylvestris) may gain an advantage over dark conifers in a predicted dry climate due to their resistance to water stress and wildfire. Habitats for new temperate broadleaf forests, non-existent in Siberia at present, are predicted by 2080.
WOS,
Scopus
Держатели документа:
[Tchebakova, Nadezda M.
Parfenova, Elena I.] Russian Acad Sci, VNSukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Tchebakova, N.M.; Parfenova, E.I.
GIS-based classification and mapping of forest site conditions and vegetation
/ V. . Ryzhkova, I. . Danilova // Bosque. - 2012. - Vol. 33, Is. 3. - P293-297, DOI 10.4067/S0717-92002012000300011. - Cited References: 15. - This study was supported by Russian Foundation for Basic Research project 10-05-0094, project ZAPAS (Assessment and Monitoring of Forest Resources in the Framework of the EU-Russia Space Dialogue), project 27.32 (Basic Research Program of Presidium RAS) and Interdisciplinary project 14.
. - 5. - ISSN 0304-8799
РУБ Ecology + Forestry
Кл.слова (ненормированные):
Central Siberia -- site conditions and forest type mapping -- geographical information system (GIS) -- digital elevation model (DEM) -- remote sensing data
Аннотация: A method of automated classification and mapping based on a spatial analysis of a digital elevation model (Shuttle Radar Topography Mission (SRTM 90m), Landsat 5-TM imagery, and ground data was applied to classify and map forest site conditions and vegetation on a test site. The vector maps obtained reflected the test site potential environmental conditions, forest types, and regenerating vegetation age stages.
WOS,
Scopus
Держатели документа:
[Ryzhkova, Vera
Danilova, Irina] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Ryzhkova, V...; Danilova, I...
Кл.слова (ненормированные):
Central Siberia -- site conditions and forest type mapping -- geographical information system (GIS) -- digital elevation model (DEM) -- remote sensing data
Аннотация: A method of automated classification and mapping based on a spatial analysis of a digital elevation model (Shuttle Radar Topography Mission (SRTM 90m), Landsat 5-TM imagery, and ground data was applied to classify and map forest site conditions and vegetation on a test site. The vector maps obtained reflected the test site potential environmental conditions, forest types, and regenerating vegetation age stages.
WOS,
Scopus
Держатели документа:
[Ryzhkova, Vera
Danilova, Irina] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Ryzhkova, V...; Danilova, I...
The role of the pyrogenic factor in the productivity and dynamics of the pine forests in Transbaikalia
[Text] / M. D. Evdokimenko // Contemp. Probl. Ecol. - 2011. - Vol. 4, Is. 6. - P608-615, DOI 10.1134/S1995425511060075. - Cited References: 13. - The work was carried out with support of the Russian Foundation for Basic Research (project no. 08-04-00027).
. - 8. - ISSN 1995-4255
РУБ Ecology
Кл.слова (ненормированные):
pine forests -- wild fires -- fire damage -- hydrothermal soil regime -- xylogenesis -- productivity of tree stands -- age dynamics
Аннотация: Peculiarities of the dynamics and productivity of the pine forests growing under the conditions of the Transbaikalia arid climate are considered. Their high inflammability is noted. Fires sharpen the limiting role of moisture in tree growth. The post-fire annual ring fluctuations on longitudinal sections of young pines are illustrated. Outward diagnostic signs characterizing the xylogenesis state in trees damaged by fire have been analyzed: the char height on trunks, thermal damage to crowns, reduction and change in the tint of needle coloring. The process of digression dynamics of pyrogenic tree stands has been traced. Their reparation potential has been found to become weaker with ageing. As a result of the permanent effect of the pyrogenic factor, the productivity of pine forests in Transbaikalia is 1.5-2 times lower than of those in Priangarie.
Полный текст,
Scopus,
WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Evdokimenko, M.D.
Кл.слова (ненормированные):
pine forests -- wild fires -- fire damage -- hydrothermal soil regime -- xylogenesis -- productivity of tree stands -- age dynamics
Аннотация: Peculiarities of the dynamics and productivity of the pine forests growing under the conditions of the Transbaikalia arid climate are considered. Their high inflammability is noted. Fires sharpen the limiting role of moisture in tree growth. The post-fire annual ring fluctuations on longitudinal sections of young pines are illustrated. Outward diagnostic signs characterizing the xylogenesis state in trees damaged by fire have been analyzed: the char height on trunks, thermal damage to crowns, reduction and change in the tint of needle coloring. The process of digression dynamics of pyrogenic tree stands has been traced. Their reparation potential has been found to become weaker with ageing. As a result of the permanent effect of the pyrogenic factor, the productivity of pine forests in Transbaikalia is 1.5-2 times lower than of those in Priangarie.
Полный текст,
Scopus,
WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Evdokimenko, M.D.
Evaluation of morphological diversity and reproductive potential of dwarf pines in Shirinskaya forest-steppe
[Text] / I. V. Tikhonova // Contemp. Probl. Ecol. - 2011. - Vol. 4, Is. 6. - P658-664, DOI 10.1134/S1995425511060154. - Cited References: 36. - The work was performed with partial financial support of the Russian Foundation for Basic Research no. 11-04-98008-p_Siberia-a and no. 11-04-92226-Mong_a.
. - 7. - ISSN 1995-4255
РУБ Ecology
Кл.слова (ненормированные):
dwarfism of growth -- adaptation -- morphological variability -- fruiting
Аннотация: Dwarf and typical trees of Pinus silvestris L. in Shirinskaya forest-steppe are compared on variability of vegetative and generative organs and quantitative and qualitative characteristics of fruiting. Special attention is paid to investigation of the correlation structure of characters in the compared samples. It has been determined that the dwarf pines are characterized by high variability of dimensional and qualitative characteristics. In spite of generally low reproductive potential of dwarf trees some species are distinguished by regular and abundant fruiting. They are characterized by higher correlation of characteristics and tendency to gonochorism. In spite of generally small contribution of dwarf species into the reproduction of pine population, it is quite consistent with the small area occupied by rocks within the studied territory. Some species are distinguished by higher reproductive potential and may be used to solve the problems of selection.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660026, Russia
Доп.точки доступа:
Tikhonova, I.V.
Кл.слова (ненормированные):
dwarfism of growth -- adaptation -- morphological variability -- fruiting
Аннотация: Dwarf and typical trees of Pinus silvestris L. in Shirinskaya forest-steppe are compared on variability of vegetative and generative organs and quantitative and qualitative characteristics of fruiting. Special attention is paid to investigation of the correlation structure of characters in the compared samples. It has been determined that the dwarf pines are characterized by high variability of dimensional and qualitative characteristics. In spite of generally low reproductive potential of dwarf trees some species are distinguished by regular and abundant fruiting. They are characterized by higher correlation of characteristics and tendency to gonochorism. In spite of generally small contribution of dwarf species into the reproduction of pine population, it is quite consistent with the small area occupied by rocks within the studied territory. Some species are distinguished by higher reproductive potential and may be used to solve the problems of selection.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660026, Russia
Доп.точки доступа:
Tikhonova, I.V.
Agroclimatic potential across central Siberia in an altered twenty-first century
[Text] / N. M. Tchebakova [et al.] // Environ. Res. Lett. - 2011. - Vol. 6, Is. 4. - Ст. 45207, DOI 10.1088/1748-9326/6/4/045207. - Cited References: 38. - We would like to recognize the Northern Eurasian Earth Science Partnership Initiative (NEESPI) and the NASA Land Cover Land Use Change (LCLUC) program for providing the background that made this work possible. We are greatly appreciative of the current support for this work provided by the NASA InterDisciplinary Science grant NNH09ZDA001N-IDS and the Russian Foundation for Basic Research grant 10-05-00941. We thank our two anonymous reviewers for their very helpful comments.
. - 11. - ISSN 1748-9326
РУБ Environmental Sciences + Meteorology & Atmospheric Sciences
Кл.слова (ненормированные):
climate warming -- central Siberia -- agriculture -- crop range and production
Аннотация: Humans have traditionally cultivated steppe and forest-steppe on fertile soils for agriculture. Forests are predicted to shift northwards in a warmer climate and are likely to be replaced by forest-steppe and steppe ecosystems. We analyzed potential climate change impacts on agriculture in south-central Siberia believing that agriculture in traditionally cold Siberia may benefit from warming. Simple models determining crop range and regression models determining crop yields were constructed and applied to climate change scenarios for various time frames: pre-1960, 1960-90 and 1990-2010 using historic data and data taken from 2020 and 2080 HadCM3 B1 and A2 scenarios. From 50 to 85% of central Siberia is predicted to be climatically suitable for agriculture by the end of the century, and only soil potential would limit crop advance and expansion to the north. Crop production could increase twofold. Future Siberian climatic resources could provide the potential for a great variety of crops to grow that previously did not exist on these lands. Traditional Siberian crops could gradually shift as far as 500 km northwards (about 50-70 km/decade) within suitable soil conditions, and new crops nonexistent today may be introduced in the dry south that would necessitate irrigation. Agriculture in central Siberia would likely benefit from climate warming. Adaptation measures would sustain and promote food security in a warmer Siberia.
WOS,
Scopus
Держатели документа:
[Tchebakova, N. M.
Parfenova, E. I.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Lysanova, G. I.] Russian Acad Sci, Siberian Branch, Inst Geog, Irkutsk, Russia
[Soja, A. J.] NASA, Langley Res Ctr, NIA, Hampton, VA 23681 USA
Доп.точки доступа:
Tchebakova, N.M.; Parfenova, E.I.; Lysanova, G.I.; Soja, A.J.
Кл.слова (ненормированные):
climate warming -- central Siberia -- agriculture -- crop range and production
Аннотация: Humans have traditionally cultivated steppe and forest-steppe on fertile soils for agriculture. Forests are predicted to shift northwards in a warmer climate and are likely to be replaced by forest-steppe and steppe ecosystems. We analyzed potential climate change impacts on agriculture in south-central Siberia believing that agriculture in traditionally cold Siberia may benefit from warming. Simple models determining crop range and regression models determining crop yields were constructed and applied to climate change scenarios for various time frames: pre-1960, 1960-90 and 1990-2010 using historic data and data taken from 2020 and 2080 HadCM3 B1 and A2 scenarios. From 50 to 85% of central Siberia is predicted to be climatically suitable for agriculture by the end of the century, and only soil potential would limit crop advance and expansion to the north. Crop production could increase twofold. Future Siberian climatic resources could provide the potential for a great variety of crops to grow that previously did not exist on these lands. Traditional Siberian crops could gradually shift as far as 500 km northwards (about 50-70 km/decade) within suitable soil conditions, and new crops nonexistent today may be introduced in the dry south that would necessitate irrigation. Agriculture in central Siberia would likely benefit from climate warming. Adaptation measures would sustain and promote food security in a warmer Siberia.
WOS,
Scopus
Держатели документа:
[Tchebakova, N. M.
Parfenova, E. I.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Lysanova, G. I.] Russian Acad Sci, Siberian Branch, Inst Geog, Irkutsk, Russia
[Soja, A. J.] NASA, Langley Res Ctr, NIA, Hampton, VA 23681 USA
Доп.точки доступа:
Tchebakova, N.M.; Parfenova, E.I.; Lysanova, G.I.; Soja, A.J.
Aerosol particle number size distributions and particulate light absorption at the ZOTTO tall tower (Siberia), 2006-2009
[Text] / J. . Heintzenberg [et al.] // Atmos. Chem. Phys. - 2011. - Vol. 11, Is. 16. - P8703-8719, DOI 10.5194/acp-11-8703-2011. - Cited References: 65. - The Max Planck Society in collaboration with the V. N. Sukachev Institute of Forest established the ZOTTO facility after many years of preparatory fieldwork, planning and massive investments. We thank E.-D. Schulze and M. Heimann (MPI Biogeochemistry), A. A. Onuchin, and S. Verchovetz, (V. N. Sukachev Institute of Forest) for their contributions to the establishment and management of ZOTTO, and Y. Kisilyakhov, A. Tsukanov (V. N. Sukachev Institute of Forest), M. Welling and N. Jurgens (MPI Chemistry), as well as S. Leinert and T. Muller (IfT) for technical support. The ZOTTO project is funded by the Max Plank Society through the International Science and Technology Center (ISTC) partner project #2757p within the framework of the proposal 'Observing and Understanding Biogeochemical Responses to Rapid Climate Changes in Eurasia', and by the German Research Council (DFG). We thank S. Schmidt and K. Kubler (MPI Jena) for their continuous logistic assistance during the experiment. We acknowledge U. Riebel (Technical University of Cottbus, Chair for Particle Technology) for generously sharing his technology of the corona discharge based aerosol neutralizer. We thank A. Wiedensohler (IfT Leipzig) for the fruitful discussions about environmental aerosol charging.
. - 17. - ISSN 1680-7316
РУБ Meteorology & Atmospheric Sciences
Аннотация: This paper analyses aerosol particle number size distributions, particulate absorption at 570 nm wavelength and carbon monoxide (CO) measured between September 2006 and January 2010 at heights of 50 and 300 m at the Zotino Tall Tower Facility (ZOTTO) in Siberia (60.8 degrees N; 89.35 degrees E). Average number, surface and volume concentrations are broadly comparable to former studies covering shorter observation periods. Fits of multiple lognormal distributions yielded three maxima in probability distribution of geometric mean diameters in the Aitken and accumulation size range and a possible secondary maximum in the nucleation size range below 25 nm. The seasonal cycle of particulate absorption shows maximum concentrations in high winter (December) and minimum concentrations in mid-summer (July). The 90th percentile, however, indicates a secondary maximum in July/August that is likely related to forest fires. The strongly combustion derived CO shows a single winter maximum and a late summer minimum, albeit with a considerably smaller seasonal swing than the particle data due to its longer atmospheric lifetime. Total volume and even more so total number show a more complex seasonal variation with maxima in winter, spring, and summer. A cluster analysis of back trajectories and vertical profiles of the pseudo-potential temperature yielded ten clusters with three levels of particle number concentration: Low concentrations in Arctic air masses (400-500 cm(-3)), mid-level concentrations for zonally advected air masses from westerly directions between 55 degrees and 65 degrees N (600-800 cm(-3)), and high concentrations for air masses advected from the belt of industrial and population centers in Siberia and Kazakhstan (1200 cm(-3)). The observational data is representative for large parts of the troposphere over Siberia and might be particularly useful for the validation of global aerosol transport models.
WOS,
Scopus
Держатели документа:
[Heintzenberg, J.
Birmili, W.
Otto, R.] Leibniz Inst Tropospher Res, D-04318 Leipzig, Germany
[Andreae, M. O.
Mayer, J. -C.
Chi, X.] Max Planck Inst Chem, D-55020 Mainz, Germany
[Panov, A.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Heintzenberg, J...; Birmili, W...; Otto, R...; Andreae, M.O.; Mayer, J.C.; Chi, X...; Panov, A...
Рубрики:
TRAJECTORY CLUSTER-ANALYSIS
LONG-RANGE TRANSPORT
TRACE-GAS
BOREAL FORESTS
ATMOSPHERIC AEROSOLS
FORMATION EVENTS
CENTRAL-EUROPE
AIR-POLLUTION
FLOW PATTERNS
SMEAR-II
TRAJECTORY CLUSTER-ANALYSIS
LONG-RANGE TRANSPORT
TRACE-GAS
BOREAL FORESTS
ATMOSPHERIC AEROSOLS
FORMATION EVENTS
CENTRAL-EUROPE
AIR-POLLUTION
FLOW PATTERNS
SMEAR-II
Аннотация: This paper analyses aerosol particle number size distributions, particulate absorption at 570 nm wavelength and carbon monoxide (CO) measured between September 2006 and January 2010 at heights of 50 and 300 m at the Zotino Tall Tower Facility (ZOTTO) in Siberia (60.8 degrees N; 89.35 degrees E). Average number, surface and volume concentrations are broadly comparable to former studies covering shorter observation periods. Fits of multiple lognormal distributions yielded three maxima in probability distribution of geometric mean diameters in the Aitken and accumulation size range and a possible secondary maximum in the nucleation size range below 25 nm. The seasonal cycle of particulate absorption shows maximum concentrations in high winter (December) and minimum concentrations in mid-summer (July). The 90th percentile, however, indicates a secondary maximum in July/August that is likely related to forest fires. The strongly combustion derived CO shows a single winter maximum and a late summer minimum, albeit with a considerably smaller seasonal swing than the particle data due to its longer atmospheric lifetime. Total volume and even more so total number show a more complex seasonal variation with maxima in winter, spring, and summer. A cluster analysis of back trajectories and vertical profiles of the pseudo-potential temperature yielded ten clusters with three levels of particle number concentration: Low concentrations in Arctic air masses (400-500 cm(-3)), mid-level concentrations for zonally advected air masses from westerly directions between 55 degrees and 65 degrees N (600-800 cm(-3)), and high concentrations for air masses advected from the belt of industrial and population centers in Siberia and Kazakhstan (1200 cm(-3)). The observational data is representative for large parts of the troposphere over Siberia and might be particularly useful for the validation of global aerosol transport models.
WOS,
Scopus
Держатели документа:
[Heintzenberg, J.
Birmili, W.
Otto, R.] Leibniz Inst Tropospher Res, D-04318 Leipzig, Germany
[Andreae, M. O.
Mayer, J. -C.
Chi, X.] Max Planck Inst Chem, D-55020 Mainz, Germany
[Panov, A.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Heintzenberg, J...; Birmili, W...; Otto, R...; Andreae, M.O.; Mayer, J.C.; Chi, X...; Panov, A...
Correlation between the morphogenetic types of litter and their properties in bog birch forests
[Text] / T. T. Efremova, S. P. Efremov, A. F. Avrova // Eurasian Soil Sci. - 2010. - Vol. 43, Is. 8. - P858-866, DOI 10.1134/S106422931008003X. - Cited References: 11. - This work was supported by the Russian Foundation for Basic Research, project no. 08-04-92501.
. - 9. - ISSN 1064-2293
РУБ Soil Science
Аннотация: A formalized arrangement of morphogenetic types of litter according to the physicochemical parameters provided their significant grouping in three genetic associations. The litter group (highly decomposed + moderately decomposed) is confined to the tall-grass group of bog birch forests. The rhizomatous (roughly decomposed) litter is formed in the sedge-reed grass bog birch forests. The litter group (peaty + peatified + peat) is associated with the bog-herbaceous-moss group of forest types. The genetic associations of the litters (a) reliably characterize the edaphic conditions of bog birch forests and (b)correspond to formation of the peat of certain ecological groups. We found highly informative the acid-base parameters, the exchangeable cations (Ca(2+) + Mg(2+)) and the total potential acidity, which differentiated the genetic associations of litter practically with 100% probability. The expediency of studying litters under groups of forest types rather than under separate types of bog birch forests was demonstrated.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Efremov, S. P.
Avrova, A. F.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Akad Gorodok, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Avrova, A.F.
Аннотация: A formalized arrangement of morphogenetic types of litter according to the physicochemical parameters provided their significant grouping in three genetic associations. The litter group (highly decomposed + moderately decomposed) is confined to the tall-grass group of bog birch forests. The rhizomatous (roughly decomposed) litter is formed in the sedge-reed grass bog birch forests. The litter group (peaty + peatified + peat) is associated with the bog-herbaceous-moss group of forest types. The genetic associations of the litters (a) reliably characterize the edaphic conditions of bog birch forests and (b)correspond to formation of the peat of certain ecological groups. We found highly informative the acid-base parameters, the exchangeable cations (Ca(2+) + Mg(2+)) and the total potential acidity, which differentiated the genetic associations of litter practically with 100% probability. The expediency of studying litters under groups of forest types rather than under separate types of bog birch forests was demonstrated.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Efremov, S. P.
Avrova, A. F.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Akad Gorodok, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Avrova, A.F.