/ I. Levin, N. M. Tchebakova, O. Shibistova // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 696-712
Аннотация: A three-year trace gas climatology of CO2 and its stable isotopic ratios, as well as CH4, N2O and SF6, derived from regular vertical aircraft sampling over the Eurasian continent is presented. The four sampling sites range from about 1degreesE to 89degreesE in the latitude belt from 48N to 62degreesN. The most prominent features of the CO2 observations are an increase of the seasonal cycle amplitudes of CO2 and delta(13)C-CO2 in the free troposphere (at 3000 m a.s.l.) by more than 60% from Western Europe to Western and Central Siberia. delta(18)O-CO2 shows an even larger increase of the seasonal cycle amplitude by a factor of two from Western Europe towards the Ural mountains, which decreases again towards the most eastern site, Zotino. These data reflect a strong influence of carbon exchange fluxes with the continental biosphere. In particular, during autumn and winter delta(18)O-CO2 shows a decrease by more than 0.5parts per thousand from Orleans (Western Europe) to Syktyvkar (Ural mountains) and Zotino (West Siberia), mainly caused by soil respiration fluxes depleted in delta(18)O with respect to atmospheric CO2. CH4 mixing ratios in the free troposphere at 3000 m over Western Siberia are higher by about 20-30 ppb if compared to Western Europe. Wetland emissions seem to be particularly visible in July-September, with largest signals at Zotino in 1998. Annual mean CH4 mixing ratios decrease slightly from 1998 to 1999 at all Russian sites. In contrast to CO2 and CH4, which show significant vertical gradients between 2000 and 3000 m a.s.l., N2O mixing ratios are vertically very homogeneous and show no significant logitudinal gradient between the Ural mountains and Western Siberia, indicating insignificant emissions of this trace gas from boreal forest ecosystems in Western Siberia. The growth rate of N2O (1.2-1.3 ppb yr(-1)) and the seasonal amplitude (0:5-1.1 ppb) are similar at both aircraft sites, Syktyvkar and Zotino. For SF6 an annual increase of 5% is observed, together with a small seasonal cycle which is in phase with the N2O cycle, indicating that the seasonality of both trace gases are most probably caused by atmospheric transport processes with a possible contribution from stratosphere-troposphere exchange.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Levin, I.; Левин И.; Tchebakova, Nadezhda Mikhailovna; Чебакова, Надежда Михайловна; Shibistova, Olga Borisovna; Шибистова, Ольга Борисовна
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
w10=
Найдено документов в текущей БД: 132
Three years of trace gas observations over the EuroSiberian domain derived from aircraft sampling - a concerted action
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.
WOS,
Scopus
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
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.
WOS,
Scopus
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.
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
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
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
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
Tree vegetation climate-driven changes within ecotones in Siberia
: материалы временных коллективов / V. I. Kharuk, S. T. Im, M. L. Dvinskaya // 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. 219-222. - Библиогр. в конце ст.
Аннотация: Warming induced (1) tree upward and northward migration and (2) krummholz transformation in alpine and northern ecotones, (3) a "dark needle conifers (DNC)" migration within "mixed taiga - zone of larch dominance" ecotone, (4) growth increment increase and stand denisification, (4) DNC proportion increase, which should lead an albedo decrease, amplifying warming at local scale. Observed radial and apical growth increment increases were correlated with both, air temperatures and atmospheric CO2 concentration increases.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Im, Sergey Tkhekdyeyevich; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав Иванович
Аннотация: Warming induced (1) tree upward and northward migration and (2) krummholz transformation in alpine and northern ecotones, (3) a "dark needle conifers (DNC)" migration within "mixed taiga - zone of larch dominance" ecotone, (4) growth increment increase and stand denisification, (4) DNC proportion increase, which should lead an albedo decrease, amplifying warming at local scale. Observed radial and apical growth increment increases were correlated with both, air temperatures and atmospheric CO2 concentration increases.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Im, Sergey Tkhekdyeyevich; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав 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.
Increase of summer CO2 concentrations in the atmosphere over Central Siberia in 2010
: материалы временных коллективов / A. V. Timokhina [и др.] // 354-355Boreal 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. 365-367. - Библиогр. в конце ст.
Аннотация: The summer of 2010 was extremely warm for large part Russia and cool for Siberia. In our study we analyzed how this weather conditions influence on seasonal variations of atmospheric CO2 in Central Siberia. It was showed that background level of CO2 concentration at ZOTTO in 2010 was higher rthan in 2009 as consequence of combined effects of persistent period of drought, large fires and cool weather in Siberia during the summer of 2010.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Timokhina, Anastasiya Vladimirovna; Wenderlich, J.; Вендерлих Дж.; Verkhovets, Sergey Vladimirovich; Верховец, Сергей Владимирович; Rubtsov, A.V.; Рубцов А.В.
Аннотация: The summer of 2010 was extremely warm for large part Russia and cool for Siberia. In our study we analyzed how this weather conditions influence on seasonal variations of atmospheric CO2 in Central Siberia. It was showed that background level of CO2 concentration at ZOTTO in 2010 was higher rthan in 2009 as consequence of combined effects of persistent period of drought, large fires and cool weather in Siberia during the summer of 2010.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Timokhina, Anastasiya Vladimirovna; Wenderlich, J.; Вендерлих Дж.; Verkhovets, Sergey Vladimirovich; Верховец, Сергей Владимирович; Rubtsov, A.V.; Рубцов А.В.
Всемирная изменчивость концентрации атмосферного СО2 над лесными экосистемами cреднетаежной подзоны Приенисейской Сибири
[Текст] = Temporal variability of atmospheric CO2 over of Middle Taiga ecosystems of Central Siberia : материалы временных коллективов / А. В. Тимохина // 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. 61-63. - Библиогр. в конце ст.
Аннотация: The study is based on data of ZOTTO tall tower obtained during 2009-2012 years. The linear trend of atmospheric CO2 from May 1 of 2009 to March 29 of 2012 about 2.96 ppm/year was estimated.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Timokhina Anastasiya Vladimirovna
Аннотация: The study is based on data of ZOTTO tall tower obtained during 2009-2012 years. The linear trend of atmospheric CO2 from May 1 of 2009 to March 29 of 2012 about 2.96 ppm/year was estimated.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Timokhina Anastasiya Vladimirovna
Structure and dynamics of organic matter pools in clearings in the lichen pine forests of middle taiga subzone of Yenisei Siberia
/ A. V. Panov [et al.] // Biol. Bull. - 2013. - Vol. 40, Is. 1. - P95-102, DOI 10.1134/S1062359012060088. - Cited References: 22. - This work was supported by grants from TCOS-Siberia, ISTC 2770, ISTC 2757 and the project of the Krasnoyarsk Regional Fund for Scientific and Research Activities Support.
. - 8. - ISSN 1062-3590
РУБ Biology
Аннотация: This paper studies the structure and dynamics of the major pools of organic matter in clearings in the lichen pine forests of the middle taiga subzone of Yenisei Siberia, in the range of measurements of the international observatory Zotto, a high-tech research platform for long-term ( 30 years) monitoring of the atmosphere and climate changes. The contribution of phytocenoses at different stages of post-clearing succession in the process of deposition of atmospheric carbon is analyzed. In conjunction with the data on atmospheric measurements of a wide range of greenhouse gases carried out at the base of the observatory, the results of this work will be used for modeling the stocks and flows of carbon in forest ecosystems of Central Siberia. DOI: 10.1134/S1062359012060088
Полный текст,
WOS,
Scopus
Держатели документа:
[Panov, A. V.
Onuchin, A. A.
Zrazhevskaya, G. K.
Shibistova, O. B.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forests, Krasnoyarsk 660036, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук
Доп.точки доступа:
Panov, A.V.; Onuchin, A.A.; Zrazhevskaya, G.K.; Shibistova, O.B.
Аннотация: This paper studies the structure and dynamics of the major pools of organic matter in clearings in the lichen pine forests of the middle taiga subzone of Yenisei Siberia, in the range of measurements of the international observatory Zotto, a high-tech research platform for long-term ( 30 years) monitoring of the atmosphere and climate changes. The contribution of phytocenoses at different stages of post-clearing succession in the process of deposition of atmospheric carbon is analyzed. In conjunction with the data on atmospheric measurements of a wide range of greenhouse gases carried out at the base of the observatory, the results of this work will be used for modeling the stocks and flows of carbon in forest ecosystems of Central Siberia. DOI: 10.1134/S1062359012060088
Полный текст,
WOS,
Scopus
Держатели документа:
[Panov, A. V.
Onuchin, A. A.
Zrazhevskaya, G. K.
Shibistova, O. B.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forests, Krasnoyarsk 660036, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук
Доп.точки доступа:
Panov, A.V.; Onuchin, A.A.; Zrazhevskaya, G.K.; Shibistova, O.B.
Biogeochemistry of stable Ca and radiogenic Sr isotopes in a larch-covered permafrost-dominated watershed of Central Siberia
/ M. L. Bagard [et al.] // Geochim. Cosmochim. Acta. - 2013. - Vol. 114. - P169-187, DOI 10.1016/j.gca.2013.03.038. - Cited References: 104. - We thank T. Bullen and two anonymous reviewers for their thorough and constructive reviews and A. Jacobson for editorial handling. S. Gangloff is thanked for her assistance with Ca isotope chemistry and T. Perrone for his help in measuring Sr isotopes. This work was supported by the French INSU-CNRS program "EC2CO-Cytrix", and CNRS program "GDRI CAR-WET-SIB, ANR "Arctic Metals", programs of presidium UroRAS and RAS. It was also supported by the funding from the Region Alsace, France, and the CPER 2003-2013 "REALISE". MLB benefited the funding of a Ph.D. scholarship from the French Ministry of National Education and Research. This is an EOST-LHyGeS contribution.
. - 19. - ISSN 0016-7037
РУБ Geochemistry & Geophysics
Аннотация: Stable Ca and radiogenic Sr isotope compositions were measured in different compartments (stream water, soil solutions, rocks, soils and soil leachates and vegetation) of a small permafrost-dominated watershed in the Central Siberian Plateau. The Sr and Ca in the area are supplied by basalt weathering and atmospheric depositions, which significantly impact the Sr isotopic compositions. Only vegetation significantly fractionates the calcium isotopes within the watershed. These fractionations occur during Ca uptake by roots and along the transpiration stream within the larch trees and are hypothesised to be the result of chromatographic processes and Ca oxalate crystallisations during Ca circulation or storage within plant organs. Biomass degradation significantly influences the Ca isotopic compositions of soil solutions and soil leachates via the release of light Ca, and organic and organo-mineral colloids are thought to affect the Ca isotopic compositions of soil solutions by preferential scavenging of Ca-40. The imprint of organic matter degradation on the delta Ca-44/40 of soil solutions is much more significant for the warmer south-facing slope of the watershed than for the shallow and cold soil active layer of the north-facing slope. As a result, the available stock of biomass and the decomposition rates appear to be critical parameters that regulate the impact of vegetation on the soil-water system in permafrost areas. Finally, the obtained delta Ca-44/40 patterns contrast with those described for permafrost-free environments with a much lower delta Ca-44/40 fractionation factor between soils and plants, suggesting specific features of organic matter decomposition in permafrost environments. The biologically induced Ca isotopic fractionation observed at the soil profile scale is not pronounced at the scale of the streams and large rivers in which the delta Ca-44/40 signature may be controlled by the heterogeneity of lithological sources. (C) 2013 Elsevier Ltd. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Bagard, Marie-Laure
Schmitt, Anne-Desiree
Chabaux, Francois
Stille, Peter] Univ Strasbourg, F-67084 Strasbourg, France
[Bagard, Marie-Laure
Schmitt, Anne-Desiree
Chabaux, Francois
Stille, Peter] CNRS, EOST, LHyGeS, F-67084 Strasbourg, France
[Schmitt, Anne-Desiree] Univ Franche Comte, CNRS, UMR 6249, F-25030 Besancon, France
[Pokrovsky, Oleg S.
Viers, Jerome] Univ Toulouse 3, CNRS, UMR 5563, Geosci & Environm Toulouse, F-31400 Toulouse, France
[Pokrovsky, Oleg S.] Russian Acad Sci, Inst Ecol Problems North, Arkhangelsk, Russia
[Labolle, Francois] Univ Strasbourg, Inst Zool & Biol Gen, F-67000 Strasbourg, France
[Prokushkin, Anatoly S.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Bagard, M.L.; Schmitt, A.D.; Chabaux, F...; Pokrovsky, O.S.; Viers, J...; Stille, P...; Labolle, F...; Prokushkin, A.S.
Рубрики:
DISSOLVED ORGANIC-CARBON
CALCIUM-OXALATE CRYSTALS
ASIAN DUST
STRONTIUM ISOTOPES
CHANGING SOURCES
ORTHO-PYROXENE
BOREAL RIVER
FRACTIONATION
SOILS
VEGETATION
DISSOLVED ORGANIC-CARBON
CALCIUM-OXALATE CRYSTALS
ASIAN DUST
STRONTIUM ISOTOPES
CHANGING SOURCES
ORTHO-PYROXENE
BOREAL RIVER
FRACTIONATION
SOILS
VEGETATION
Аннотация: Stable Ca and radiogenic Sr isotope compositions were measured in different compartments (stream water, soil solutions, rocks, soils and soil leachates and vegetation) of a small permafrost-dominated watershed in the Central Siberian Plateau. The Sr and Ca in the area are supplied by basalt weathering and atmospheric depositions, which significantly impact the Sr isotopic compositions. Only vegetation significantly fractionates the calcium isotopes within the watershed. These fractionations occur during Ca uptake by roots and along the transpiration stream within the larch trees and are hypothesised to be the result of chromatographic processes and Ca oxalate crystallisations during Ca circulation or storage within plant organs. Biomass degradation significantly influences the Ca isotopic compositions of soil solutions and soil leachates via the release of light Ca, and organic and organo-mineral colloids are thought to affect the Ca isotopic compositions of soil solutions by preferential scavenging of Ca-40. The imprint of organic matter degradation on the delta Ca-44/40 of soil solutions is much more significant for the warmer south-facing slope of the watershed than for the shallow and cold soil active layer of the north-facing slope. As a result, the available stock of biomass and the decomposition rates appear to be critical parameters that regulate the impact of vegetation on the soil-water system in permafrost areas. Finally, the obtained delta Ca-44/40 patterns contrast with those described for permafrost-free environments with a much lower delta Ca-44/40 fractionation factor between soils and plants, suggesting specific features of organic matter decomposition in permafrost environments. The biologically induced Ca isotopic fractionation observed at the soil profile scale is not pronounced at the scale of the streams and large rivers in which the delta Ca-44/40 signature may be controlled by the heterogeneity of lithological sources. (C) 2013 Elsevier Ltd. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Bagard, Marie-Laure
Schmitt, Anne-Desiree
Chabaux, Francois
Stille, Peter] Univ Strasbourg, F-67084 Strasbourg, France
[Bagard, Marie-Laure
Schmitt, Anne-Desiree
Chabaux, Francois
Stille, Peter] CNRS, EOST, LHyGeS, F-67084 Strasbourg, France
[Schmitt, Anne-Desiree] Univ Franche Comte, CNRS, UMR 6249, F-25030 Besancon, France
[Pokrovsky, Oleg S.
Viers, Jerome] Univ Toulouse 3, CNRS, UMR 5563, Geosci & Environm Toulouse, F-31400 Toulouse, France
[Pokrovsky, Oleg S.] Russian Acad Sci, Inst Ecol Problems North, Arkhangelsk, Russia
[Labolle, Francois] Univ Strasbourg, Inst Zool & Biol Gen, F-67000 Strasbourg, France
[Prokushkin, Anatoly S.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Bagard, M.L.; Schmitt, A.D.; Chabaux, F...; Pokrovsky, O.S.; Viers, J...; Stille, P...; Labolle, F...; Prokushkin, A.S.
Precipitation trends in the area of Noril'sk Mining and Smelting Complex
/ A. A. Onuchin, A. V. Musokhranova // Russ. Meteorol. Hydrol. - 2013. - Vol. 38, Is. 2. - P88-93, DOI 10.3103/S1068373913020040. - Cited References: 19
. - 6. - ISSN 1068-3739
РУБ Meteorology & Atmospheric Sciences
Аннотация: Considered is the precipitation dynamics in the areas adjoining the Noril'sk Mining and Smelting Complex. An attempt is made to establish linkage between the trends in spatiotemporal precipitation dynamics and the atmospheric aerosol pollution.
Полный текст,
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Scopus
Держатели документа:
[Onuchin, A. A.
Musokhranova, A. V.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Onuchin, A.A.; Musokhranova, A.V.
Аннотация: Considered is the precipitation dynamics in the areas adjoining the Noril'sk Mining and Smelting Complex. An attempt is made to establish linkage between the trends in spatiotemporal precipitation dynamics and the atmospheric aerosol pollution.
Полный текст,
WOS,
Scopus
Держатели документа:
[Onuchin, A. A.
Musokhranova, A. V.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Onuchin, A.A.; Musokhranova, A.V.
Biogeochemistry of carbon, major and trace elements in watersheds of northern Eurasia drained to the Arctic Ocean: The change of fluxes, sources and mechanisms under the climate warming prospective
/ O. S. Pokrovsky [et al.] // C. R. Geosci. - 2012. - Vol. 344, Is. 11.12.2013. - P663-677, DOI 10.1016/j.crte.2012.08.003. - Cited References: 81. - This work was supported by ANR "Arctic Metals", LIA "LEAGE", PICS No. 6063, GDRI "CAR WET SIB", grants RFBR-CNRS Nos 12-05-91055, 08-05-00312_a, 07-05-92212-CNRS_a, 08-04-92495-CNRS_a, CRDF RUG1-2980-KR10, Federal Program RF "Kadry" (contract N 14.740.11.0935), and Programs of Presidium RAS and UrORAS.
. - 15. - ISSN 1631-0713
РУБ Geosciences, Multidisciplinary
Аннотация: Warming of the permafrost accompanied by the release of ancient soil organic carbon is one of the most significant environmental threats within the global climate change scenario. While the main sites of permafrost carbon processing and its release to the atmosphere are thermokarst (thaw) lakes and ponds, the main carriers of carbon and related major and trace elements from the land to the Arctic ocean are Russian subarctic rivers. The source of carbon in these rivers is atmospheric C consumed by chemical weathering of rocks and amplified by plant uptake and litter decomposition. This multidisciplinary study describes results of more than a decade of observations and measurements of elements fluxes, stocks and mechanisms in the Russian boreal and subarctic zone, from Karelia region to the Kamchatka peninsula, along the gradient of permafrost-free terrain to continuous permafrost settings, developed on various lithology and vegetation types. We offer a comprehensive, geochemically-based view on the functioning of aquatic boreal systems which quantifies the role of the following factors on riverine element fluxes: (1) the specificity of lithological substrate; (2) the importance of organic and organo-mineral colloidal forms, notably during the snowmelt season; (3) the phenomenon of lakes seasonal overturn; (4) the role of permafrost within the small and large watersheds; and (5) the governing role of terrestrial vegetation in element mobilization from rock substrate to the river. Care of such a multiple approach, a first order prediction of the evolution of element stocks and fluxes under scenario of progressive warming in high latitudes becomes possible. It follows the increase of frozen peat thawing in western Siberia will increase the stocks of elements in surface waters by a factor of 3 to 10 whereas the increase of the thickness of active layer, the biomass and the primary productivity all over permafrost-affected zone will bring about a short-term increase of elements stocks in labile reservoir (plant litter) and riverine fluxes by a factor of 2. The change of the plant productivity and community composition under climate warming in central Siberia will be the most important factor of major and trace element fluxes increase (probably a factor of 2) from the soil to the river and, finally, to the Arctic Ocean. (c) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Pokrovsky, Oleg S.
Viers, Jerome
Dupre, Bernard
Audry, Stephane] Univ Toulouse, CNRS IRD OMP, Geosci Environm Toulouse, F-31400 Toulouse, France
[Chabaux, Francois] CNRS, EOST, UMR 7517, CGS, F-67084 Strasbourg, France
[Gaillardet, Jerome] Inst Phys Globe Strasbourg Paris, Equipe Geochim Cosmochim, F-75005 Paris, France
[Prokushkin, Anatoly S.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia
[Shirokova, Liudmila S.] Russian Acad Sci, Inst Ecol Problems N, Arkhangelsk, Russia
[Kirpotin, Sergey N.] Tomsk State Univ, Tomsk 634050, Russia
[Lapitsky, Sergey A.] Moscow MV Lomonosov State Univ, Geol Fac, Moscow, Russia
[Shevchenko, Vladimir P.] RAS, PP Shirshov Oceanol Inst, Moscow 117901, Russia
Доп.точки доступа:
Pokrovsky, O.S.; Viers, J...; Dupre, B...; Chabaux, F...; Gaillardet, J...; Audry, S...; Prokushkin, A.S.; Shirokova, L.S.; Kirpotin, S.N.; Lapitsky, S.A.; Shevchenko, V.P.
Рубрики:
WOLLASTONITE DISSOLUTION KINETICS
SEVERNAYA DVINA RIVER
ORGANIC-LIGANDS
WESTERN SIBERIA
HETEROTROPHIC BACTERIA
FLUVIAL GEOCHEMISTRY
COLLOIDAL PARTICLES
SOUTHWEST ICELAND
SIZE DISTRIBUTION
WEATHERING RATES
Кл.слова (ненормированные):
Arctic -- Geochemistry -- Permafrost -- Carbon -- Weathering -- Fluxes
WOLLASTONITE DISSOLUTION KINETICS
SEVERNAYA DVINA RIVER
ORGANIC-LIGANDS
WESTERN SIBERIA
HETEROTROPHIC BACTERIA
FLUVIAL GEOCHEMISTRY
COLLOIDAL PARTICLES
SOUTHWEST ICELAND
SIZE DISTRIBUTION
WEATHERING RATES
Кл.слова (ненормированные):
Arctic -- Geochemistry -- Permafrost -- Carbon -- Weathering -- Fluxes
Аннотация: Warming of the permafrost accompanied by the release of ancient soil organic carbon is one of the most significant environmental threats within the global climate change scenario. While the main sites of permafrost carbon processing and its release to the atmosphere are thermokarst (thaw) lakes and ponds, the main carriers of carbon and related major and trace elements from the land to the Arctic ocean are Russian subarctic rivers. The source of carbon in these rivers is atmospheric C consumed by chemical weathering of rocks and amplified by plant uptake and litter decomposition. This multidisciplinary study describes results of more than a decade of observations and measurements of elements fluxes, stocks and mechanisms in the Russian boreal and subarctic zone, from Karelia region to the Kamchatka peninsula, along the gradient of permafrost-free terrain to continuous permafrost settings, developed on various lithology and vegetation types. We offer a comprehensive, geochemically-based view on the functioning of aquatic boreal systems which quantifies the role of the following factors on riverine element fluxes: (1) the specificity of lithological substrate; (2) the importance of organic and organo-mineral colloidal forms, notably during the snowmelt season; (3) the phenomenon of lakes seasonal overturn; (4) the role of permafrost within the small and large watersheds; and (5) the governing role of terrestrial vegetation in element mobilization from rock substrate to the river. Care of such a multiple approach, a first order prediction of the evolution of element stocks and fluxes under scenario of progressive warming in high latitudes becomes possible. It follows the increase of frozen peat thawing in western Siberia will increase the stocks of elements in surface waters by a factor of 3 to 10 whereas the increase of the thickness of active layer, the biomass and the primary productivity all over permafrost-affected zone will bring about a short-term increase of elements stocks in labile reservoir (plant litter) and riverine fluxes by a factor of 2. The change of the plant productivity and community composition under climate warming in central Siberia will be the most important factor of major and trace element fluxes increase (probably a factor of 2) from the soil to the river and, finally, to the Arctic Ocean. (c) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Pokrovsky, Oleg S.
Viers, Jerome
Dupre, Bernard
Audry, Stephane] Univ Toulouse, CNRS IRD OMP, Geosci Environm Toulouse, F-31400 Toulouse, France
[Chabaux, Francois] CNRS, EOST, UMR 7517, CGS, F-67084 Strasbourg, France
[Gaillardet, Jerome] Inst Phys Globe Strasbourg Paris, Equipe Geochim Cosmochim, F-75005 Paris, France
[Prokushkin, Anatoly S.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia
[Shirokova, Liudmila S.] Russian Acad Sci, Inst Ecol Problems N, Arkhangelsk, Russia
[Kirpotin, Sergey N.] Tomsk State Univ, Tomsk 634050, Russia
[Lapitsky, Sergey A.] Moscow MV Lomonosov State Univ, Geol Fac, Moscow, Russia
[Shevchenko, Vladimir P.] RAS, PP Shirshov Oceanol Inst, Moscow 117901, Russia
Доп.точки доступа:
Pokrovsky, O.S.; Viers, J...; Dupre, B...; Chabaux, F...; Gaillardet, J...; Audry, S...; Prokushkin, A.S.; Shirokova, L.S.; Kirpotin, S.N.; Lapitsky, S.A.; Shevchenko, V.P.
System analysis of weather fire danger in predicting large fires in Siberian forests
[Text] / A. V. Rubtsov, A. I. Sukhinin, E. A. Vaganov // Izv. Atmos. Ocean. Phys. - 2011. - Vol. 47, Is. 9. - P1049-1056, DOI 10.1134/S0001433811090143. - Cited References: 19. - The work was supported by the Russian Foundation for Basic Research (project no. 09-05-00900-a).
. - 8. - ISSN 0001-4338
РУБ Meteorology & Atmospheric Sciences + Oceanography
Кл.слова (ненормированные):
satellite data -- AVHRR -- MODIS -- moisture indices -- meteorological data -- snow cover fraction -- vegetation types -- fire prediction -- Siberia
Аннотация: The prediction results of large-scale forest fire development are given for Siberia. To evaluate the fire risks, the Canadian Forest Fire Weather Index System (CFFWIS) and the Russian moisture indices (MI1 and MI2) were compared on the basis of the data of a network of meteorological stations as input weather parameters. Parameters of active fires were detected daily from the NOAA satellite data for the period of 1996-2008. To determine the length of the fire danger season, the snow cover fractions from Terra/MODIS data (2001-2008) were used. The features of fire development on territories with different types of flammable fuel are considered. The statistical analysis of the areas and number of fires typical of each vegetation class is made with the use of the GLC2000 vegetation map. A positive correlation (similar to 0.45, p < 0.05) between the cumulative area of local fires and the MI1 and Canadian BUI and DMC indices is revealed. The Canadian ISI and FWI indices describe best the diurnal dynamics of fire areas. The above correlations are higher (similar to 0.62, p < 0.05) when we select the fires larger than 2000-10000 ha in size for the forested areas. Other cases point to the lack of a linear relation between the fire area and the values of all indices, because the fire spread depends on many natural and anthropogenic factors.
Полный текст,
WOS,
Scopus
Держатели документа:
[Rubtsov, A. V.
Sukhinin, A. I.
Vaganov, E. A.] Siberian Fed Univ, Inst Space & Informat Technol, Krasnoyarsk, Russia
[Rubtsov, A. V.
Sukhinin, A. I.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk, Russia
Доп.точки доступа:
Rubtsov, A.V.; Sukhinin, A.I.; Vaganov, E.A.
Кл.слова (ненормированные):
satellite data -- AVHRR -- MODIS -- moisture indices -- meteorological data -- snow cover fraction -- vegetation types -- fire prediction -- Siberia
Аннотация: The prediction results of large-scale forest fire development are given for Siberia. To evaluate the fire risks, the Canadian Forest Fire Weather Index System (CFFWIS) and the Russian moisture indices (MI1 and MI2) were compared on the basis of the data of a network of meteorological stations as input weather parameters. Parameters of active fires were detected daily from the NOAA satellite data for the period of 1996-2008. To determine the length of the fire danger season, the snow cover fractions from Terra/MODIS data (2001-2008) were used. The features of fire development on territories with different types of flammable fuel are considered. The statistical analysis of the areas and number of fires typical of each vegetation class is made with the use of the GLC2000 vegetation map. A positive correlation (similar to 0.45, p < 0.05) between the cumulative area of local fires and the MI1 and Canadian BUI and DMC indices is revealed. The Canadian ISI and FWI indices describe best the diurnal dynamics of fire areas. The above correlations are higher (similar to 0.62, p < 0.05) when we select the fires larger than 2000-10000 ha in size for the forested areas. Other cases point to the lack of a linear relation between the fire area and the values of all indices, because the fire spread depends on many natural and anthropogenic factors.
Полный текст,
WOS,
Scopus
Держатели документа:
[Rubtsov, A. V.
Sukhinin, A. I.
Vaganov, E. A.] Siberian Fed Univ, Inst Space & Informat Technol, Krasnoyarsk, Russia
[Rubtsov, A. V.
Sukhinin, A. I.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk, Russia
Доп.точки доступа:
Rubtsov, A.V.; Sukhinin, A.I.; Vaganov, E.A.
Sources, seasonal variability, and trajectories of atmospheric aerosols over central Siberian forest ecosystems
[Text] / A. V. Panov [et al.] // Dokl. Earth Sci. - 2011. - Vol. 441, Is. 2. - P1710-1714, DOI 10.1134/S1028334X1112018X. - Cited References: 13. - This work was supported by the International ISTC, project no. 2757.
. - 5. - ISSN 1028-334X
РУБ Geosciences, Multidisciplinary
Аннотация: The possibility to obtain reliable data on the chemical and physical characteristics of aerosols and the regularities in the processes of their formation and transportation under the background natural-climatic conditions is a necessary requirement for verification of existing climate models [1, 2].
Полный текст,
WOS,
Scopus
Держатели документа:
[Panov, A. V.
Zrazhevskaya, G. K.
Timokhina, A. V.
Onuchin, A. A.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
[Heintzenberg, J.
Birmili, W.
Otto, R.
Chi, X.] Leibniz Inst Tropospher Res, Leipzig, Germany
[Andrea, M.] Max Planck Inst Chem, D-55128 Mainz, Germany
[Verkhovets, S. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Panov, A.V.; Heintzenberg, J...; Birmili, W...; Otto, R...; Chi, X...; Zrazhevskaya, G.K.; Timokhina, A.V.; Verkhovets, S.V.; Andrea, M...; Onuchin, A.A.
Аннотация: The possibility to obtain reliable data on the chemical and physical characteristics of aerosols and the regularities in the processes of their formation and transportation under the background natural-climatic conditions is a necessary requirement for verification of existing climate models [1, 2].
Полный текст,
WOS,
Scopus
Держатели документа:
[Panov, A. V.
Zrazhevskaya, G. K.
Timokhina, A. V.
Onuchin, A. A.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
[Heintzenberg, J.
Birmili, W.
Otto, R.
Chi, X.] Leibniz Inst Tropospher Res, Leipzig, Germany
[Andrea, M.] Max Planck Inst Chem, D-55128 Mainz, Germany
[Verkhovets, S. V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Panov, A.V.; Heintzenberg, J...; Birmili, W...; Otto, R...; Chi, X...; Zrazhevskaya, G.K.; Timokhina, A.V.; Verkhovets, S.V.; Andrea, M...; Onuchin, A.A.
Symbiotic nitrogen fixation in the alpine community of a lichen heath of the Northwestern Caucasus Region (the Teberda Reserve)
[Text] / M. I. Makarov [et al.] // Eurasian Soil Sci. - 2011. - Vol. 44, Is. 12. - P1381-1388, DOI 10.1134/S1064229311100097. - Cited References: 42. - This work was supported by the Russian Foundation for Basic Research (project nos. 08-04-92890 and 10-04-00780).
. - 8. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The symbiotic fixation of atmospheric nitrogen by leguminous plants in the alpine community of a lichen heath at the Teberda State Biosphere Reserve is well adapted to low soil temperature characteristic for the altitude of 2800 m a.s.l. For the determination of the N fixation by isotopic methods (the method of the natural (15)N abundance and the method of isotopic (15)N dilution), Trifolium polyphyllum was taken as the control plant. This plant was used as it does not form symbiosis with the nitrogen-fixing bacteria in the highlands of the Northern Caucasus Region. The contribution of the N fixation to the N nutrition of different leguminous plant species as determined by the natural (15)N abundance method amounted to 28-73% at delta(15)N(0) = 0aEuro degrees and 46-117% at delta(15)N(0) = -1aEuro degrees; for the determination of the N fixation by the method of the isotopic label's dilution, it was 34-97%. The best correlation of the results obtained by these two isotopic methods was observed for the natural fractionation of the N isotopes in the course of the N fixation in the range of -0.5 to -0.7aEuro degrees. The determination of the nitrogenase activity of the roots by the acetylene method confirmed the absence of N fixation in T. polyphyllum and its different contribution to the N nutrition of different species of leguminous plants.
Полный текст,
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Держатели документа:
[Makarov, M. I.
Malysheva, T. I.
Ermak, A. A.
Stepanov, A. L.] Lomonosov Moscow State Univ, Fac Soil Sci, Moscow 119991, Russia
[Onipchenko, V. G.] Lomonosov Moscow State Univ, Fac Biol, Moscow 119991, Russia
[Menyailo, O. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Makarov, M.I.; Malysheva, T.I.; Ermak, A.A.; Onipchenko, V.G.; Stepanov, A.L.; Menyailo, O.V.
Рубрики:
N-15 NATURAL-ABUNDANCE
N-2 FIXATION
ACETYLENE-REDUCTION
ALTITUDINAL GRADIENT
SUBTERRANEAN CLOVER
BIOMASS PRODUCTION
PASTURE LEGUMES
WHITE CLOVER
TUNDRA
SOIL
N-15 NATURAL-ABUNDANCE
N-2 FIXATION
ACETYLENE-REDUCTION
ALTITUDINAL GRADIENT
SUBTERRANEAN CLOVER
BIOMASS PRODUCTION
PASTURE LEGUMES
WHITE CLOVER
TUNDRA
SOIL
Аннотация: The symbiotic fixation of atmospheric nitrogen by leguminous plants in the alpine community of a lichen heath at the Teberda State Biosphere Reserve is well adapted to low soil temperature characteristic for the altitude of 2800 m a.s.l. For the determination of the N fixation by isotopic methods (the method of the natural (15)N abundance and the method of isotopic (15)N dilution), Trifolium polyphyllum was taken as the control plant. This plant was used as it does not form symbiosis with the nitrogen-fixing bacteria in the highlands of the Northern Caucasus Region. The contribution of the N fixation to the N nutrition of different leguminous plant species as determined by the natural (15)N abundance method amounted to 28-73% at delta(15)N(0) = 0aEuro degrees and 46-117% at delta(15)N(0) = -1aEuro degrees; for the determination of the N fixation by the method of the isotopic label's dilution, it was 34-97%. The best correlation of the results obtained by these two isotopic methods was observed for the natural fractionation of the N isotopes in the course of the N fixation in the range of -0.5 to -0.7aEuro degrees. The determination of the nitrogenase activity of the roots by the acetylene method confirmed the absence of N fixation in T. polyphyllum and its different contribution to the N nutrition of different species of leguminous plants.
Полный текст,
WOS,
Scopus
Держатели документа:
[Makarov, M. I.
Malysheva, T. I.
Ermak, A. A.
Stepanov, A. L.] Lomonosov Moscow State Univ, Fac Soil Sci, Moscow 119991, Russia
[Onipchenko, V. G.] Lomonosov Moscow State Univ, Fac Biol, Moscow 119991, Russia
[Menyailo, O. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Makarov, M.I.; Malysheva, T.I.; Ermak, A.A.; Onipchenko, V.G.; Stepanov, A.L.; Menyailo, O.V.
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...
Twentieth century trends in tree ring stable isotopes (delta C-13 and delta O-18) of Larix sibirica under dry conditions in the forest steppe in Siberia
[Text] / A. A. Knorre [et al.] // J. Geophys. Res.-Biogeosci. - 2010. - Vol. 115. - Ст. G03002, DOI 10.1029/2009JG000930. - Cited References: 62. - This study was supported by the Swiss National Science Foundation Joint Research Project SCOPES (IB73A0-111134), SCOPES (IB74A0.110950), SNSF (200021_121838), RFBR-CRDF (RUG1-2950-KR-09), and program AVC "Development of the high school science potential" 2.1.1/6131.
. - 12. - ISSN 0148-0227
РУБ Environmental Sciences + Geosciences, Multidisciplinary
Аннотация: Tree ring width, density, and ratio of stable isotopes (C-13/C-12 and O-18/O-16) in wood and cellulose were determined for larch (Larix sibirica Ledeb.) growing under water deficit conditions in the forest steppe zone in central Siberia (54 degrees 24'N, 89 degrees 57'E) for the period 1850-2005. Dendroclimatic analysis of the chronologies indicated precipitation to be the most important factor determining indicated parameters. Precipitation of June is significantly correlated with tree ring width and maximum density (r = 0.36 and 0.43, p 0.05, respectively). Relations of delta C-13 and delta O-18 to precipitation are similar, but the most important month is July (r
WOS,
Scopus
Держатели документа:
[Knorre, Anastasia A.
Sidorova, Olga V.
Kirdyanov, Alexander V.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Siegwolf, Rolf T. W.
Saurer, Matthias
Sidorova, Olga V.] Paul Scherrer Inst, CH-5332 Villigen, Switzerland
[Knorre, Anastasia A.
Vaganov, Eugene A.] Siberian Fed Univ, Dept Forestry, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Knorre, A.A.; Siegwolf, RTW; Saurer, M...; Sidorova, O.V.; Vaganov, E.A.; Kirdyanov, A.V.
Рубрики:
PICEA-ABIES
SUMMER TEMPERATURES
NORTHERN EURASIA
CARBON ISOTOPES
ATMOSPHERIC CO2
SCOTS PINE
GROWTH
VARIABILITY
RECORD
CELLULOSE
PICEA-ABIES
SUMMER TEMPERATURES
NORTHERN EURASIA
CARBON ISOTOPES
ATMOSPHERIC CO2
SCOTS PINE
GROWTH
VARIABILITY
RECORD
CELLULOSE
Аннотация: Tree ring width, density, and ratio of stable isotopes (C-13/C-12 and O-18/O-16) in wood and cellulose were determined for larch (Larix sibirica Ledeb.) growing under water deficit conditions in the forest steppe zone in central Siberia (54 degrees 24'N, 89 degrees 57'E) for the period 1850-2005. Dendroclimatic analysis of the chronologies indicated precipitation to be the most important factor determining indicated parameters. Precipitation of June is significantly correlated with tree ring width and maximum density (r = 0.36 and 0.43, p 0.05, respectively). Relations of delta C-13 and delta O-18 to precipitation are similar, but the most important month is July (r
WOS,
Scopus
Держатели документа:
[Knorre, Anastasia A.
Sidorova, Olga V.
Kirdyanov, Alexander V.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Siegwolf, Rolf T. W.
Saurer, Matthias
Sidorova, Olga V.] Paul Scherrer Inst, CH-5332 Villigen, Switzerland
[Knorre, Anastasia A.
Vaganov, Eugene A.] Siberian Fed Univ, Dept Forestry, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Knorre, A.A.; Siegwolf, RTW; Saurer, M...; Sidorova, O.V.; Vaganov, E.A.; Kirdyanov, A.V.
Spatial patterns of climatic changes in the Eurasian north reflected in Siberian larch tree-ring parameters and stable isotopes
[Text] / O. V. Sidorova [et al.] // Glob. Change Biol. - 2010. - Vol. 16, Is. 3. - P1003-1018, DOI 10.1111/j.1365-2486.2009.02008.x. - Cited References: 50. - This work was supported by Swiss National Science Foundation SNF_200021_121838/1, (PIOI2-119259/1), SCOPES program (No. IB73A0-111134), European Science Foundation BASIN-SIBAE (No. 596) and the grants of RFBR No. 09-05-98015-r_Sibir_a, RFBR No. 09-04-00803a, 07-04-00293-a. The authors thank Mary Gagen and Danny McCarroll from Swansea University, England for providing deltaSUP13/SUPC data from Laanila (Finland) and for their useful advises. This work was conducted in collaboration with the EU-funded Millennium project (017008).
. - 16. - ISSN 1354-1013
РУБ Biodiversity Conservation + Ecology + Environmental Sciences
Аннотация: A spatial description of climatic changes along circumpolar regions is presented based on larch tree-ring width (TRW) index, latewood density (MXD), delta 13C, delta 18O of whole wood and cellulose chronologies from eastern Taimyr (TAY) and north-eastern Yakutia (YAK), Russia, for the period 1900-2006, in comparison with a delta 13C cellulose chronology from Finland (FIN) and a delta 18O ice core record from Greenland (GISP2). Correlation analysis showed a strong positive relationships between TRW, MXD, stable isotope chronologies and June, July air temperatures for TAY and YAK, while the precipitation signal was reflected differently in tree-ring parameters and stable isotope data for the studied sites. Negative correlations were found between July, August precipitation from TAY and stable isotopes and MXD, while May, July precipitations are reflected in MXD and stable isotopes for the YAK. No significant relationships were found between TRW and precipitation for TAY and YAK. The areas of significant correlations between July gridded temperatures and TRW, MXD and stable isotopes show widespread dimension from east to west for YAK and from north to south for TAY. The climate signal is stronger expressed in whole wood than in cellulose for both Siberian regions. The comparison analysis between delta 13C cellulose chronologies from FIN and TAY revealed a similar declining trend over recent decades, which could be explained by the physiological effect of the increasing atmospheric CO(2). TRW, MXD and delta 13C chronologies from TAY and YAK show a negative correlation with North Atlantic Oscillation index, while the delta 18O chronologies show positive correlations, confirming recent warming trend at high latitudes. The strong correlation between GISP2 and delta 18O of cellulose from YAK chronologies reflects the large-scale climatic signal connected by atmospheric circulation patterns expressed by precipitation.
Полный текст,
WOS,
Scopus
Держатели документа:
[Sidorova, Olga V.
Siegwolf, Rolf T. W.
Saurer, Matthias] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[Sidorova, Olga V.
Naurzbaev, Mukhtar M.
Shashkin, Alexander V.
Vaganov, Eugene A.] RAS, VN Sukachev Inst Forest SB, Krasnoyarsk 660036, Russia
[Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660049, Russia
Доп.точки доступа:
Sidorova, O.V.; Siegwolf, RTW; Saurer, M...; Naurzbaev, M.M.; Shashkin, A.V.; Vaganov, E.A.
Рубрики:
ATLANTIC OSCILLATION
PINUS-SYLVESTRIS
DELTA-C-13
DENSITY
CELLULOSE
GROWTH
WIDTH
RATIOS
SIGNAL
OXYGEN
Кл.слова (ненормированные):
climate change -- delta 13C and delta 18O of wood and cellulose -- Greenland ice core -- late wood density -- North Atlantic Oscillation -- northern Finland -- permafrost -- Siberian north (Russia) -- spatial patterns -- tree-ring width
ATLANTIC OSCILLATION
PINUS-SYLVESTRIS
DELTA-C-13
DENSITY
CELLULOSE
GROWTH
WIDTH
RATIOS
SIGNAL
OXYGEN
Кл.слова (ненормированные):
climate change -- delta 13C and delta 18O of wood and cellulose -- Greenland ice core -- late wood density -- North Atlantic Oscillation -- northern Finland -- permafrost -- Siberian north (Russia) -- spatial patterns -- tree-ring width
Аннотация: A spatial description of climatic changes along circumpolar regions is presented based on larch tree-ring width (TRW) index, latewood density (MXD), delta 13C, delta 18O of whole wood and cellulose chronologies from eastern Taimyr (TAY) and north-eastern Yakutia (YAK), Russia, for the period 1900-2006, in comparison with a delta 13C cellulose chronology from Finland (FIN) and a delta 18O ice core record from Greenland (GISP2). Correlation analysis showed a strong positive relationships between TRW, MXD, stable isotope chronologies and June, July air temperatures for TAY and YAK, while the precipitation signal was reflected differently in tree-ring parameters and stable isotope data for the studied sites. Negative correlations were found between July, August precipitation from TAY and stable isotopes and MXD, while May, July precipitations are reflected in MXD and stable isotopes for the YAK. No significant relationships were found between TRW and precipitation for TAY and YAK. The areas of significant correlations between July gridded temperatures and TRW, MXD and stable isotopes show widespread dimension from east to west for YAK and from north to south for TAY. The climate signal is stronger expressed in whole wood than in cellulose for both Siberian regions. The comparison analysis between delta 13C cellulose chronologies from FIN and TAY revealed a similar declining trend over recent decades, which could be explained by the physiological effect of the increasing atmospheric CO(2). TRW, MXD and delta 13C chronologies from TAY and YAK show a negative correlation with North Atlantic Oscillation index, while the delta 18O chronologies show positive correlations, confirming recent warming trend at high latitudes. The strong correlation between GISP2 and delta 18O of cellulose from YAK chronologies reflects the large-scale climatic signal connected by atmospheric circulation patterns expressed by precipitation.
Полный текст,
WOS,
Scopus
Держатели документа:
[Sidorova, Olga V.
Siegwolf, Rolf T. W.
Saurer, Matthias] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[Sidorova, Olga V.
Naurzbaev, Mukhtar M.
Shashkin, Alexander V.
Vaganov, Eugene A.] RAS, VN Sukachev Inst Forest SB, Krasnoyarsk 660036, Russia
[Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660049, Russia
Доп.точки доступа:
Sidorova, O.V.; Siegwolf, RTW; Saurer, M...; Naurzbaev, M.M.; Shashkin, A.V.; Vaganov, E.A.
Tree species affect atmospheric CH4 oxidation without altering community composition of soil methanotrophs
[Text] / O. V. Menyailo, W. R. Abraham, R. . Conrad // Soil Biol. Biochem. - 2010. - Vol. 42, Is. 1. - P101-107, DOI 10.1016/j.soilbio.2009.10.005. - Cited References: 50. - We thank Esther Surges for the isotope ratio measurements, Svetlana Dedysh and Peter Frenzel for discussion of the data. The funding was provided by the Alexander von Humboldt Foundation, Marie Curie Fellowship and by the Russian President Award for best professors awarded to OVM.
. - 7. - ISSN 0038-0717
РУБ Soil Science
Аннотация: Plant species exert strong effects on ecosystem functions and one of the emerging, and difficult to test hypotheses, is that plants alter soil functions through changing the community structure of soil microorganisms. We tested the hypothesis for atmospheric CH4 oxidation by using soil samples from a Siberian afforestation experiment and exposing them to C-13-CH4. We determined the activity of the soil methanotrophs under different tree species at three levels of initial CH4 concentration (30, 200 and 1000 ppm) thus distinguishing the activities of low- and high-affinity methanotrophs. Half of the samples were incubated with C-13-enriched CH4 (99.9%) and half with C-12-CH4. This allowed an estimation of the amount of C-13 incorporated into individual PLFAs and determination of PLFAs of methanotrophs involved in CH4 oxidation at the different CH4 concentrations. Tree species strongly altered the activity of atmospheric CH4 oxidation without appearing to change the composition of high-affinity methanotrophs as evidenced by PLFA C-13 labeling. The low diversity of atmospheric CH4 oxidizers, presumably belonging to the UCS alpha group, may explain the lack of tree species effects on the composition of soil methanotrophs. We submit that the observed tree species effects on atmospheric CH4 oxidation indicate an effect on biomass or cell-specific activities rather than by a community change and this may be related to the impact of the tree species on soil N cycling. (C) 2009 Elsevier Ltd. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Menyailo, Oleg V.] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Menyailo, Oleg V.
Conrad, Ralf] Max Planck Inst Terr Microbiol, D-35043 Marburg, Germany
[Abraham, Wolf-Rainer] Helmholtz Ctr Infect Res, D-38124 Braunschweig, Germany
Доп.точки доступа:
Menyailo, O.V.; Abraham, W.R.; Conrad, R...
Рубрики:
ARTIFICIAL AFFORESTATION EXPERIMENT
PARTICULATE METHANE MONOOXYGENASE
FOREST SOILS
MICROBIAL COMMUNITIES
OXIDIZING BACTERIA
ECOSYSTEM FUNCTION
PLANT DIVERSITY
EUROPEAN BEECH
NORWAY SPRUCE
FATTY-ACIDS
Кл.слова (ненормированные):
Atmospheric methane -- High-affinity methanotrophs -- C-13-Labeling -- Microbial diversity -- Net N mineralization -- Net nitrification -- PLFA -- Tree species
ARTIFICIAL AFFORESTATION EXPERIMENT
PARTICULATE METHANE MONOOXYGENASE
FOREST SOILS
MICROBIAL COMMUNITIES
OXIDIZING BACTERIA
ECOSYSTEM FUNCTION
PLANT DIVERSITY
EUROPEAN BEECH
NORWAY SPRUCE
FATTY-ACIDS
Кл.слова (ненормированные):
Atmospheric methane -- High-affinity methanotrophs -- C-13-Labeling -- Microbial diversity -- Net N mineralization -- Net nitrification -- PLFA -- Tree species
Аннотация: Plant species exert strong effects on ecosystem functions and one of the emerging, and difficult to test hypotheses, is that plants alter soil functions through changing the community structure of soil microorganisms. We tested the hypothesis for atmospheric CH4 oxidation by using soil samples from a Siberian afforestation experiment and exposing them to C-13-CH4. We determined the activity of the soil methanotrophs under different tree species at three levels of initial CH4 concentration (30, 200 and 1000 ppm) thus distinguishing the activities of low- and high-affinity methanotrophs. Half of the samples were incubated with C-13-enriched CH4 (99.9%) and half with C-12-CH4. This allowed an estimation of the amount of C-13 incorporated into individual PLFAs and determination of PLFAs of methanotrophs involved in CH4 oxidation at the different CH4 concentrations. Tree species strongly altered the activity of atmospheric CH4 oxidation without appearing to change the composition of high-affinity methanotrophs as evidenced by PLFA C-13 labeling. The low diversity of atmospheric CH4 oxidizers, presumably belonging to the UCS alpha group, may explain the lack of tree species effects on the composition of soil methanotrophs. We submit that the observed tree species effects on atmospheric CH4 oxidation indicate an effect on biomass or cell-specific activities rather than by a community change and this may be related to the impact of the tree species on soil N cycling. (C) 2009 Elsevier Ltd. All rights reserved.
Полный текст,
WOS,
Scopus
Держатели документа:
[Menyailo, Oleg V.] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Menyailo, Oleg V.
Conrad, Ralf] Max Planck Inst Terr Microbiol, D-35043 Marburg, Germany
[Abraham, Wolf-Rainer] Helmholtz Ctr Infect Res, D-38124 Braunschweig, Germany
Доп.точки доступа:
Menyailo, O.V.; Abraham, W.R.; Conrad, R...
Seasonal, synoptic, and diurnal-scale variability of biogeochemical trace gases and O-2 from a 300-m tall tower in central Siberia
[Text] / E. A. Kozlova [et al.] // Glob. Biogeochem. Cycle. - 2008. - Vol. 22, Is. 4. - Ст. GB4020, DOI 10.1029/2008GB003209. - Cited References: 79. - We thank A. Jordan (MPI-BGC) and D. Worthy (Environment Canada) for their invaluable advice and contribution in establishing GC measurements at ZOTTO, and we thank R. Keeling and his group (SIO) for their help and advice with the OINF2/INF measurements, including the loan of a Servomex OINF2/INF sensor. We are very grateful to E.-D. Schulze (MPI-BGC) for many years of work toward the establishment of ZOTTO station. Many thanks to A. Jordan, W. Brand, F. Hansel, and M. Hielscher (MPI-BGC) for calibration cylinder preparations and to K. Kubler, R. Leppert, S. Schmidt, F. Voigt, B. Schloffel, R. Schwalbe, and U. Schultz (MPI-BGC) for general advice, instrument design and functioning, and logistical and technical support. We thank all employees of the Sukachev Institute of Forest, SB RAS, in Krasnoyarsk, who participated in the site construction, logistics, and maintenance of the measurement system. We also thank all workers from the Russian construction company "Stroitechinvest.'' E. A. K. thanks her supervisor, A. Watson (UEA), for general support and advice. The ZOTTO project is funded by the Max Planck Society through 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.'' We are very grateful to Ronnie Robertson from Shetland Islands for the flask samples collection. E. A. K. is supported by a UEA Zuckerman Studentship, and A. C. M. is supported by a U.K. NERC/QUEST Advanced Fellowship (Ref. NE/C002504/1). We also thank three anonymous reviewers for their comments that helped to improve this paper.
. - 16. - ISSN 0886-6236
РУБ Environmental Sciences + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences
Аннотация: We present first results from 19 months of semicontinuous concentration measurements of biogeochemical trace gases (CO2, CO, and CH4) and O-2, measured at the Zotino Tall Tower Observatory (ZOTTO) in the boreal forest of central Siberia. We estimated CO2 and O2 seasonal cycle amplitudes of 26.6 ppm and 134 per meg, respectively. An observed west-east gradient of about -7 ppm (in July 2006) between Shetland Islands, Scotland, and ZOTTO reflects summertime continental uptake of CO2 and is consistent with regional modeling studies. We found the oceanic component of the O-2 seasonal amplitude (Atmospheric Potential Oxygen, or APO) to be 51 per meg, significantly smaller than the 95 per meg observed at Shetlands, illustrating a strong attenuation of the oceanic O-2 signal in the continental interior. Comparison with the Tracer Model 3 (TM3) atmospheric transport model showed good agreement with the observed phasing and seasonal amplitude in CO2; however, the model exhibited greater O-2 (43 per meg, 32%) and smaller APO (9 per meg, 18%) amplitudes. This seeming inconsistency in model comparisons between O-2 and APO appears to be the result of phasing differences in land and ocean signals observed at ZOTTO, where ocean signals have a significant lag. In the first 2 months of measurements on the fully constructed tower (November and December 2006), we observed several events with clear vertical concentration gradients in all measured species except CO. During "cold events'' (below -30 degrees C) in November 2006, we observed large vertical gradients in CO2 (up to 22 ppm), suggesting a strong local source. The same pattern was observed in CH4 concentrations for the same events. Diurnal vertical CO2 gradients in April to May 2007 gave estimates for average nighttime respiration fluxes of 0.04 +/- 0.02 mol C m(-2) d(-1), consistent with earlier eddy covariance measurements in 1999-2000 in the vicinity of the tower.
WOS,
Scopus
Держатели документа:
[Kozlova, Elena A.
Manning, Andrew C.] Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England
[Kozlova, Elena A.
Seifert, Thomas
Heimann, Martin] Max Planck Inst Biogeochem, D-07745 Jena, Germany
[Kisilyakhov, Yegor] Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Kozlova, E.A.; Manning, A.C.; Kisilyakhov, Y...; Seifert, T...; Heimann, M...
Рубрики:
ATMOSPHERIC OXYGEN MEASUREMENTS
SOUTHERN-HEMISPHERE AIR
GLOBAL CARBON BUDGET
INTERANNUAL VARIABILITY
O-2/N-2 RATIO
CO2
CYCLE
DIOXIDE
METHANE
EXCHANGE
ATMOSPHERIC OXYGEN MEASUREMENTS
SOUTHERN-HEMISPHERE AIR
GLOBAL CARBON BUDGET
INTERANNUAL VARIABILITY
O-2/N-2 RATIO
CO2
CYCLE
DIOXIDE
METHANE
EXCHANGE
Аннотация: We present first results from 19 months of semicontinuous concentration measurements of biogeochemical trace gases (CO2, CO, and CH4) and O-2, measured at the Zotino Tall Tower Observatory (ZOTTO) in the boreal forest of central Siberia. We estimated CO2 and O2 seasonal cycle amplitudes of 26.6 ppm and 134 per meg, respectively. An observed west-east gradient of about -7 ppm (in July 2006) between Shetland Islands, Scotland, and ZOTTO reflects summertime continental uptake of CO2 and is consistent with regional modeling studies. We found the oceanic component of the O-2 seasonal amplitude (Atmospheric Potential Oxygen, or APO) to be 51 per meg, significantly smaller than the 95 per meg observed at Shetlands, illustrating a strong attenuation of the oceanic O-2 signal in the continental interior. Comparison with the Tracer Model 3 (TM3) atmospheric transport model showed good agreement with the observed phasing and seasonal amplitude in CO2; however, the model exhibited greater O-2 (43 per meg, 32%) and smaller APO (9 per meg, 18%) amplitudes. This seeming inconsistency in model comparisons between O-2 and APO appears to be the result of phasing differences in land and ocean signals observed at ZOTTO, where ocean signals have a significant lag. In the first 2 months of measurements on the fully constructed tower (November and December 2006), we observed several events with clear vertical concentration gradients in all measured species except CO. During "cold events'' (below -30 degrees C) in November 2006, we observed large vertical gradients in CO2 (up to 22 ppm), suggesting a strong local source. The same pattern was observed in CH4 concentrations for the same events. Diurnal vertical CO2 gradients in April to May 2007 gave estimates for average nighttime respiration fluxes of 0.04 +/- 0.02 mol C m(-2) d(-1), consistent with earlier eddy covariance measurements in 1999-2000 in the vicinity of the tower.
WOS,
Scopus
Держатели документа:
[Kozlova, Elena A.
Manning, Andrew C.] Univ E Anglia, Sch Environm Sci, Norwich NR4 7TJ, Norfolk, England
[Kozlova, Elena A.
Seifert, Thomas
Heimann, Martin] Max Planck Inst Biogeochem, D-07745 Jena, Germany
[Kisilyakhov, Yegor] Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Kozlova, E.A.; Manning, A.C.; Kisilyakhov, Y...; Seifert, T...; Heimann, M...