: материалы временных коллективов / O. A. Zyryanova, A. S. Prokushkin, A. P. Abaimov // Proceedings of the eighth symposium on the joint Siberian permafrost studies between Japan and Russia in 1999. - Onogawa, 2000. - С. 23-28. - рус. - Библиогр. в конце ст.
Аннотация: We measured annual ring with of larch trees growing on the contrasing north-and south-facing slopes. Moreover, we also examined wood anatomy of stems of larch seedlings raised under high CO2 in phytotron for two years. Based on these results, we can predict the effect of greenhouse condition on the annual ring formation of larch species.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50 стр. 28
Доп.точки доступа:
Zyryanova, Olga Alexandrovna; Зырянова Ольга Александровна; Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Abaimov, Anatoly Platonovich ; Абаимов Анатолий Платонович
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
w10=
Найдено документов в текущей БД: 239
Annual ring growth of Larch trees grown on the contrasing North- and South-facing slopes in Eastern Central Siberian Taiga under global changing environment
The problem of regulation of fire influence on carbon balance in boreal forests in Siberia
: материалы временных коллективов / M. A. Sofronov, A. V. Volokitina // 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. 219-221. - Библиогр. в конце ст.
Аннотация: It is necessary to have a bank of data containing history of development and suppression of large forest fires for teaching professional fire-fighting leaders and for improving their skills. At present there is no such information on large forest fires. There is propose to include the question on "Formation of a bank of data on history of development of large fires and their suppression in the forests of Russia" in the IGBP program.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Sofronov, Mark Adrianovich; Volokitina, Alexandra Vital'yevna; Волокитина, Александра Витальевна; Софронов, Марк Адрианович
Аннотация: It is necessary to have a bank of data containing history of development and suppression of large forest fires for teaching professional fire-fighting leaders and for improving their skills. At present there is no such information on large forest fires. There is propose to include the question on "Formation of a bank of data on history of development of large fires and their suppression in the forests of Russia" in the IGBP program.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Sofronov, Mark Adrianovich; Volokitina, Alexandra Vital'yevna; Волокитина, Александра Витальевна; Софронов, Марк Адрианович
РСФ
B55
B55
The formation of soil invertebrate communities in the Siberian Afforestation Experiment
: материалы временных коллективов / I. N. Bezkorovaynaya // Tree species effects on soils: implications for global change. - 2005. - С. 307-316. - Библиогр. в конце ст.
Аннотация: An estimation of formation of soil invertebrate complexes was carried out on a common-garden provenance test with major Siberian woody species: arolla pine, Scots pine, Siberian larch, Norway spruce, birch, and aspen. The experiment was established on a former agricultural field, so the formation of soil communities over 30 year period combined the effects of both the reestablishment of forest conditions for soil formation and the influence of each tree species.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Безкоровайная, Ирина Николаевна
Имеются экземпляры в отделах:
РСФ (14.03.2007г. (1 экз.) - Б.ц.) - свободны 1
Аннотация: An estimation of formation of soil invertebrate complexes was carried out on a common-garden provenance test with major Siberian woody species: arolla pine, Scots pine, Siberian larch, Norway spruce, birch, and aspen. The experiment was established on a former agricultural field, so the formation of soil communities over 30 year period combined the effects of both the reestablishment of forest conditions for soil formation and the influence of each tree species.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Безкоровайная, Ирина Николаевна
Имеются экземпляры в отделах:
РСФ (14.03.2007г. (1 экз.) - Б.ц.) - свободны 1
Carbon pools and fluxes of 25-year old coniferous and deciduous stands in Middle Siberia
: материалы временных коллективов / E. F. Vedrova // Water, air & soil pollution. - 1995. - Vol. 82, № 1-2. - С. 239-246. - Библиогр. в конце ст.
Аннотация: Between 72 and 88% of carbon (C) loss in forest litter decomposition returns to the atmosphere in the form of carbon dioxide. The share of water-soluble organic products does not exceed 3-4%. Between 8% under spruce and 25% under aspen and pine of the total C loss from litter organic matter goes to the formation of humus. Decomposition intensity of the dead organic matter on the soil surface is close to annual litterfall income (except under cedar). The specific rate of decomposition processes among the coniferous litters is minimum for cedar (167 mg C g-1 yr-1) and maximum for larch (249 mg C-1 yr-1). The spicific rate of decomposition of organic residues under aspen and birch canopies are 344 and 362 mg C-1 yr-1.
Scopus,
Полный текст,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036 Красноярск, Академгородок 50/28
Доп.точки доступа:
Ведрова Эстелла Федоровна
Имеются экземпляры в отделах:
Арх (02.05.2007г. (1 экз.) - Б.ц.) - свободны 1
Аннотация: Between 72 and 88% of carbon (C) loss in forest litter decomposition returns to the atmosphere in the form of carbon dioxide. The share of water-soluble organic products does not exceed 3-4%. Between 8% under spruce and 25% under aspen and pine of the total C loss from litter organic matter goes to the formation of humus. Decomposition intensity of the dead organic matter on the soil surface is close to annual litterfall income (except under cedar). The specific rate of decomposition processes among the coniferous litters is minimum for cedar (167 mg C g-1 yr-1) and maximum for larch (249 mg C-1 yr-1). The spicific rate of decomposition of organic residues under aspen and birch canopies are 344 and 362 mg C-1 yr-1.
Scopus,
Полный текст,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036 Красноярск, Академгородок 50/28
Доп.точки доступа:
Ведрова Эстелла Федоровна
Имеются экземпляры в отделах:
Арх (02.05.2007г. (1 экз.) - Б.ц.) - свободны 1
Separating the climatic signal from tree-ring width and maximum latewood density records
: материалы временных коллективов / // Trees. Structure and Function. - 2007. - Т. 21, № 1. - С. 37-44. - Библиогр. в конце ст.
Аннотация: We propose a technique for separating the climatic signal which is contained in two tree-ring parameters widely used in dendroclimatology. The method is based on the removal of the relationship between tree-ring width and maximum latewood density observed for narrow tree rings from high latitudes. The new technique is tested on data from three larch stands located along the northern timberline in Eurasia. The analysis confirms the great importance of summer temperature for tree radial growth and tree -ring formation. These results are consistent with the known dynamics of tree-ring growth in high latitudes and mechanisms of tree-ring growth in high latitudes and mechanisms of tree-ring formation.
Scopus,
WOS,
Полный текст
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Hughes, M.K.; Хугес М.К.; Кирдянов, Александр Викторович
Имеются экземпляры в отделах:
ИФ (18.06.2007г. (1 экз.) - Б.ц.) - свободны 1
Аннотация: We propose a technique for separating the climatic signal which is contained in two tree-ring parameters widely used in dendroclimatology. The method is based on the removal of the relationship between tree-ring width and maximum latewood density observed for narrow tree rings from high latitudes. The new technique is tested on data from three larch stands located along the northern timberline in Eurasia. The analysis confirms the great importance of summer temperature for tree radial growth and tree -ring formation. These results are consistent with the known dynamics of tree-ring growth in high latitudes and mechanisms of tree-ring growth in high latitudes and mechanisms of tree-ring formation.
Scopus,
WOS,
Полный текст
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович; Hughes, M.K.; Хугес М.К.; Кирдянов, Александр Викторович
Имеются экземпляры в отделах:
ИФ (18.06.2007г. (1 экз.) - Б.ц.) - свободны 1
The difference in the lignification of earlywood and latewood in larch (Larix sibirica Ldb.)
: материалы временных коллективов / G. F. Antonova, T. N. Varaksina, V. V. Stasova // Eurasian Journal of Forest Research. - 2007. - Vol. 10-2. - С. 149-161. - Библиогр. в конце ст.
Аннотация: The rate of lignin deposition, its content and composition, and molecular weight distribution of different stages of secondary wall thickening during tracheid development of both earlywood and latewood in Siberian larch (Larix sibirica Ldb.) were studied in the stems of 25-year-old trees. The cells of early and late xylem at different stages of secondary wall development were obtaint in late June and early in August, respectively. Lignification of the two types of wood was found to involve different dynamics. The intensity of lignin synthesis during earlywood formation increases gradually, reaching the maximum at the last stage of tracheid maturation. In contrast, lignin deposition in the course of latewood development is the highest only in the first stage of lignification and declines by the end of tracheid maturation. There were differences in the composition of alkaline oxidation products of lignin preparations at different development stages of early and late xylem. The amount of cell wall substances deposited before lignification in earlywood is larger than that in latewood.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Varaksina, Tamara Nikonorovna; Вараксина, Тамара Никоноровна; Stasova, Victoria Victorovna; Стасова, Виктория Викторовна; Антонова, Галина Феодосиевна
Имеются экземпляры в отделах:
ЧЗ (05.03.2008г. (1 экз.) - Б.ц.) - свободны 1
Аннотация: The rate of lignin deposition, its content and composition, and molecular weight distribution of different stages of secondary wall thickening during tracheid development of both earlywood and latewood in Siberian larch (Larix sibirica Ldb.) were studied in the stems of 25-year-old trees. The cells of early and late xylem at different stages of secondary wall development were obtaint in late June and early in August, respectively. Lignification of the two types of wood was found to involve different dynamics. The intensity of lignin synthesis during earlywood formation increases gradually, reaching the maximum at the last stage of tracheid maturation. In contrast, lignin deposition in the course of latewood development is the highest only in the first stage of lignification and declines by the end of tracheid maturation. There were differences in the composition of alkaline oxidation products of lignin preparations at different development stages of early and late xylem. The amount of cell wall substances deposited before lignification in earlywood is larger than that in latewood.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Varaksina, Tamara Nikonorovna; Вараксина, Тамара Никоноровна; Stasova, Victoria Victorovna; Стасова, Виктория Викторовна; Антонова, Галина Феодосиевна
Имеются экземпляры в отделах:
ЧЗ (05.03.2008г. (1 экз.) - Б.ц.) - свободны 1
РСФ
C61
C61
Climatic and man-induced patterns of river runoff formation in Central and Northern Eurasia
: absracts / A. A. Onuchin [и др.] // Enviromis. International conference on enviromental observations, modelling and information systems, Tomsk, Russia, July 1-8, 2006: program and abstracts. - 2006. - С. 75-76
Аннотация: The runoff of some Siberian, Central Asia, and Western European rivers is modelled to analyse the relative influence of climate. The runoff data were analysed by multiple regression analysis. Thus a change of runoff formation can be used as an environmental indicator for sustainable land use. The river runoff integrates changes of land surface/atmosphere exchange processes in the entire catchment. These processes can be drastically altered by human land use change.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Onuchin, Alexandr Alexandrovich; Онучин, Александр Александрович; Balzter, H.; Балзтер Х.; Gaparov, K.; Гапаров К.К.; Blyth, E.; Блис Э.; Grekova, Yu.; Грекова Ю.
Имеются экземпляры в отделах:
РСФ (12.03.2008г. (1 экз.) - Б.ц.) - свободны 1
Аннотация: The runoff of some Siberian, Central Asia, and Western European rivers is modelled to analyse the relative influence of climate. The runoff data were analysed by multiple regression analysis. Thus a change of runoff formation can be used as an environmental indicator for sustainable land use. The river runoff integrates changes of land surface/atmosphere exchange processes in the entire catchment. These processes can be drastically altered by human land use change.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28
Доп.точки доступа:
Onuchin, Alexandr Alexandrovich; Онучин, Александр Александрович; Balzter, H.; Балзтер Х.; Gaparov, K.; Гапаров К.К.; Blyth, E.; Блис Э.; Grekova, Yu.; Грекова Ю.
Имеются экземпляры в отделах:
РСФ (12.03.2008г. (1 экз.) - Б.ц.) - свободны 1
Effects of environmental factors on wood formation in larch (Larix sibirica Ldb.) stems
: материалы временных коллективов / G. F. Antonova, V. V. Stasova // Trees. Structure and function. - 1997. - Vol. 11, № 8. - С. 462-468. - Библиогр. в конце ст.
Аннотация: Effects of temperatures and precipitation on xylem cell production by the cambium, radial cell expansion and secondary wall thickening in larch stems have been studied. The observation were carried out over two seasons on ten 50- to 60-year-old trees, growing in Central Siberia and chosen according to growth rate (the number of cells in radial rows of each of two of the preceding seasons was equal).
Scopus,
Полный текст,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Stasova, Victoria Victorovna; Стасова, Виктория Викторовна; Антонова, Галина Феодосиевна
Аннотация: Effects of temperatures and precipitation on xylem cell production by the cambium, radial cell expansion and secondary wall thickening in larch stems have been studied. The observation were carried out over two seasons on ten 50- to 60-year-old trees, growing in Central Siberia and chosen according to growth rate (the number of cells in radial rows of each of two of the preceding seasons was equal).
Scopus,
Полный текст,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Stasova, Victoria Victorovna; Стасова, Виктория Викторовна; Антонова, Галина Феодосиевна
Transitions between boreal forest and wetland
: сборник научных трудов / F. Z. Glebov, M. D. Korzukhin // A systems analysis of the global boreal forest. - Cambridge : Cambridge University Press, 1992. - С. 241-266
Аннотация: We have described the major ecological mechanisms involved in the long-term process of bogging and peat formation, and the corresponding changes in the plant communities, for wetlands in the taiga zone of the West Siberian Plain. The discussion is developed at three spatiotemporal levels.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Korzukhin, M.D.; Корзухин М.Д.; Глебов, Феликс Зиновьевич
Аннотация: We have described the major ecological mechanisms involved in the long-term process of bogging and peat formation, and the corresponding changes in the plant communities, for wetlands in the taiga zone of the West Siberian Plain. The discussion is developed at three spatiotemporal levels.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Korzukhin, M.D.; Корзухин М.Д.; Глебов, Феликс Зиновьевич
Modelling of smoke aerosol interaction with cloudiness over catastrophic wildfires in Siberia
: материалы временных коллективов / O. Dubrovskaya, A. I. Sukhinin, V. Malbakhov, V. Shlychkov // 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. 123. - Библиогр. в конце ст.
Аннотация: The increasing of burning area in Siberia, the extension of fire season and fires intensity lead to significant carbon emission. One of the important tasks is to describe the spread of smoke aerosol and other combustion products using actual meteorological data and fire state information. A smoke aerosol covers territory hundreds times larger than the burning area and has an effect on forming the cloud and sediment formation exactly above the fire zone.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Sukhinin, Anatoly Ivanovich; Сухинин, Анатолий Иванович; Malbakhov, V.; Малбахов В.; Shlychkov, V.; Шличков В.; Дубровская О.
Аннотация: The increasing of burning area in Siberia, the extension of fire season and fires intensity lead to significant carbon emission. One of the important tasks is to describe the spread of smoke aerosol and other combustion products using actual meteorological data and fire state information. A smoke aerosol covers territory hundreds times larger than the burning area and has an effect on forming the cloud and sediment formation exactly above the fire zone.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Sukhinin, Anatoly Ivanovich; Сухинин, Анатолий Иванович; Malbakhov, V.; Малбахов В.; Shlychkov, V.; Шличков В.; Дубровская О.
Анатомические характеристики древесины лиственницы гмелина на разной высоте ствола деревьев в экотоне верхней границы леса на полуострове Таймыр
[Текст] = Anatomical characteristics of wood at various heights in the stems of gmelin larch trees growing in the upper treeline ecotone (Taymyr) : материалы временных коллективов / В. В. Симанько // 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. 47-50. - Библиогр. в конце ст.
Аннотация: Larch trees growing at the places in the upper border "open larch stand - tundra" and the upper border closed forest - open forest situated at the upper tree-line ecotone, were under study. Anatomical structure of tree rings at various stem heights, were investigatted. Better hydrothermal conditions in upper border of the "open larch stand - tundra" facilitate the formation of hinger number of cells and larder radial cell size in trees in comparison with those in the closed stand. These differences are related to adaptation of larch conducting tissue to correspond hydrothermal soil conditions.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Siman'ko Valentina Vital'yevna
Аннотация: Larch trees growing at the places in the upper border "open larch stand - tundra" and the upper border closed forest - open forest situated at the upper tree-line ecotone, were under study. Anatomical structure of tree rings at various stem heights, were investigatted. Better hydrothermal conditions in upper border of the "open larch stand - tundra" facilitate the formation of hinger number of cells and larder radial cell size in trees in comparison with those in the closed stand. These differences are related to adaptation of larch conducting tissue to correspond hydrothermal soil conditions.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Siman'ko Valentina Vital'yevna
Space-time impact of fire events on swamp-forest ecosystems of the west Siberian Plain
/ V. V. Furyaev [et al.] // Contemp. Probl. Ecol. - 2013. - Vol. 6, Is. 2. - P156-161, DOI 10.1134/S1995425513020042. - Cited References: 10
. - 6. - ISSN 1995-4255
РУБ Ecology
Кл.слова (ненормированные):
hydromorphic ecosystems -- frequency of fires -- ratio between vegetation types in landscape regions -- forest and swamp formation processes -- progressive age dynamics of plant phytocenoses after fire events
Аннотация: An analysis of information on the groundwater dynamics, frequency of fire events, and postfire progressive-age stages of vegetation in the swamp-forest ecosystems of the southern taiga and forest-steppe zone of the West Siberian Plain has shown that fire events are a permanent factor that controls the scales and dynamics of the forest and swamp formation processes under these specific conditions in the modern era. The greatest influence on the dynamics of ecosystems is exerted by the frequency of fires. The scope and depth of the transformation of swamp ecosystems affected by the pyrogenic factor are due to their environmental regimes and have their own properties in different landscapes.
Полный текст,
WOS,
Scopus
Держатели документа:
[Furyaev, V. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Zabolotskiy, V. I.] Adm Fed Serv Supervis Nat Resource Usage Altai Kr, Krasnoyarsk, Russia
Доп.точки доступа:
Furyaev, V.V.; Zabolotskiy, V.I.; Samsonenko, S.D.; Chernykh, V.A.
Кл.слова (ненормированные):
hydromorphic ecosystems -- frequency of fires -- ratio between vegetation types in landscape regions -- forest and swamp formation processes -- progressive age dynamics of plant phytocenoses after fire events
Аннотация: An analysis of information on the groundwater dynamics, frequency of fire events, and postfire progressive-age stages of vegetation in the swamp-forest ecosystems of the southern taiga and forest-steppe zone of the West Siberian Plain has shown that fire events are a permanent factor that controls the scales and dynamics of the forest and swamp formation processes under these specific conditions in the modern era. The greatest influence on the dynamics of ecosystems is exerted by the frequency of fires. The scope and depth of the transformation of swamp ecosystems affected by the pyrogenic factor are due to their environmental regimes and have their own properties in different landscapes.
Полный текст,
WOS,
Scopus
Держатели документа:
[Furyaev, V. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Zabolotskiy, V. I.] Adm Fed Serv Supervis Nat Resource Usage Altai Kr, Krasnoyarsk, Russia
Доп.точки доступа:
Furyaev, V.V.; Zabolotskiy, V.I.; Samsonenko, S.D.; Chernykh, V.A.
Geostatistical analysis of the spatial variation of the ash reserves in the litter of bog birch forests in Western Siberia
/ T. T. Efremova [et al.] // Eurasian Soil Sci. - 2013. - Vol. 46, Is. 1. - P51-60, DOI 10.1134/S1064229312120034. - Cited References: 29. - This work was supported by Program no. 26 of the Presidium of the Russian Academy of Sciences Biological Diversity and Project no. 2 of the Siberian Division of the Russian Academy of Sciences.
. - 10. - ISSN 1064-2293
РУБ Soil Science
Аннотация: A typological series of native Betula pubescens Ehrh. dendrocenoses along the channel of a river crossing a bog was studied. The variability of the mineral element reserves is described by geostatistical methods as the sum of a trend, autocorrelation, and random components. The contribution of deterministic and random components has been assessed in the years with average precipitation and in the year of 2007 with high and long-term flooding. The empirical variograms and the parameters of the model variograms are presented. The class of the spatial correlation of the ash reserves is described. A primary cause of the ash content's variability is the specific water regime, which is determined by the following: (i) the abundance and duration of the spring floods responsible for the silt mass brought by the river and (ii) the draining effect of the intrabog river, the distance from which provided the formation in the forest of the ground cover with the specific species composition and ash content. The falloff of the arboreal layer in the bog birch forests formed the fundamental mineral background of the litter.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Sekretenko, O. P.
Avrova, A. F.
Efremov, S. P.] Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Sekretenko, O.P.; Avrova, A.F.; Efremov, S.P.
Рубрики:
SOIL PROPERTIES
VARIABILITY
Кл.слова (ненормированные):
variograms -- typological series -- water regime -- litter
SOIL PROPERTIES
VARIABILITY
Кл.слова (ненормированные):
variograms -- typological series -- water regime -- litter
Аннотация: A typological series of native Betula pubescens Ehrh. dendrocenoses along the channel of a river crossing a bog was studied. The variability of the mineral element reserves is described by geostatistical methods as the sum of a trend, autocorrelation, and random components. The contribution of deterministic and random components has been assessed in the years with average precipitation and in the year of 2007 with high and long-term flooding. The empirical variograms and the parameters of the model variograms are presented. The class of the spatial correlation of the ash reserves is described. A primary cause of the ash content's variability is the specific water regime, which is determined by the following: (i) the abundance and duration of the spring floods responsible for the silt mass brought by the river and (ii) the draining effect of the intrabog river, the distance from which provided the formation in the forest of the ground cover with the specific species composition and ash content. The falloff of the arboreal layer in the bog birch forests formed the fundamental mineral background of the litter.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Sekretenko, O. P.
Avrova, A. F.
Efremov, S. P.] Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Sekretenko, O.P.; Avrova, A.F.; Efremov, S.P.
Somatic embryogenesis in in vitro culture of three larch species
/ I. N. Tret'yakova, A. V. Barsukova // Russ. J. Dev. Biol. - 2012. - Vol. 43, Is. 6. - P353-361, DOI 10.1134/S1062360412060082. - Cited References: 32. - This work was supported by the Russian Foundation for Basic Research, project no. 11-04-00281 and Integration Project no. 53 (Genofond of Conifers).
. - 9. - ISSN 1062-3604
РУБ Developmental Biology
Аннотация: Embryogenic callus formation in different larch species from Siberia (Larix sibirica, L. gmelinii, and L. sukaczewii) was carried out on MSGm medium supplemented with growth regulators (2.4-D and BAP) and followed one and the same scheme: elongation of somatic cells and their asymmetric division with formation of initial and tube cells. The cells of embryo initial underwent sequential divisions and formed embryonic globules which caused the formation of somatic embryos. Somatic embryos became mature and germinated by addition of ABA and PEG into the medium. Long-term proliferating cell lines and regenerant plants were obtained in Sukachev larch and its hybrid with Siberian larch. The success of somatic embryogenesis depended on the genotype of the donor tree.
Полный текст,
WOS,
Scopus
Держатели документа:
[Tret'yakova, I. N.
Barsukova, A. V.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Tret'yakova, I.N.; Barsukova, A.V.
Рубрики:
PINUS-SYLVESTRIS
LOBLOLLY-PINE
EMBRYO DEVELOPMENT
TISSUE-CULTURES
GENE-EXPRESSION
NORWAY SPRUCE
PICEA-ABIES
INITIATION
MORPHOGENESIS
MATURATION
Кл.слова (ненормированные):
somatic embryogenesis -- in vitro culture -- Siberian larch -- Dahurian larch -- Sukachev larch
PINUS-SYLVESTRIS
LOBLOLLY-PINE
EMBRYO DEVELOPMENT
TISSUE-CULTURES
GENE-EXPRESSION
NORWAY SPRUCE
PICEA-ABIES
INITIATION
MORPHOGENESIS
MATURATION
Кл.слова (ненормированные):
somatic embryogenesis -- in vitro culture -- Siberian larch -- Dahurian larch -- Sukachev larch
Аннотация: Embryogenic callus formation in different larch species from Siberia (Larix sibirica, L. gmelinii, and L. sukaczewii) was carried out on MSGm medium supplemented with growth regulators (2.4-D and BAP) and followed one and the same scheme: elongation of somatic cells and their asymmetric division with formation of initial and tube cells. The cells of embryo initial underwent sequential divisions and formed embryonic globules which caused the formation of somatic embryos. Somatic embryos became mature and germinated by addition of ABA and PEG into the medium. Long-term proliferating cell lines and regenerant plants were obtained in Sukachev larch and its hybrid with Siberian larch. The success of somatic embryogenesis depended on the genotype of the donor tree.
Полный текст,
WOS,
Scopus
Держатели документа:
[Tret'yakova, I. N.
Barsukova, A. V.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Tret'yakova, I.N.; Barsukova, A.V.
AFLP analysis of the genetic diversity of closely related rhododendron species of the section rhodorastra (Ericaceae) from Siberia and the Far East of Russia
/ N. A. Tikhonova, M. A. Polezhaeva, E. A. Pimenova // Russ. J. Genet. - 2012. - Vol. 48, Is. 10. - P985-992, DOI 10.1134/S1022795412100110. - Cited References: 41
. - 8. - ISSN 1022-7954
РУБ Genetics & Heredity
Аннотация: Using AFLP analysis, the genetic variation in four population samples of Rhododendron ledebourii, three such samples of Rh. dauricum, two samples of Rh. sichotense, and one sample of Rh. mucronulatum was examined. Application of three selective primer pairs provided genotyping of 87 accessions from the four species at 213 loci. An analysis of molecular variance revealed a high level of differences between all four species (F (ST) = 0.172). Populations within the species were also differentiated: for Rh. dauricum F (ST) = 0.245; Rh. ledebourii F (ST) = 0.264; Rh. sichotense F (ST) = 0.034. The highest Nei distance was observed for Rh. mucronulatum with Rh. dauricum and Rh. ledebourii (D = 0.057 and 0.069, respectively). Similarity was observed between the species pairs of Rh. ledebourii-Rh. dauricum (0.032) and Rh. sichotense-Rh. mucronulatum (0.034). The Far Eastern species Rh. sichotense and Rh. mucronulatum were characterized by an elevated level of intrapopulation variation. The data from the AFLP-based analysis of differentiation and variation that were thus obtained were compared with the literature data on the morphological criteria that differentiate the species of interest and those regarding the history of the formation of their ranges. The independence of all the species we examined was confirmed.
Полный текст,
WOS,
Scopus
Держатели документа:
[Tikhonova, N. A.] Russian Acad Sci, Sukachev Forest Inst, Krasnoyarsk 660036, Russia
[Polezhaeva, M. A.] Russian Acad Sci, Inst Plant & Anim Ecol, Ekaterinburg 620144, Russia
[Pimenova, E. A.] Abramov Sikhote Alin State Biosphere Reserve, Primorsky Krai 692150, Terney, Russia
Доп.точки доступа:
Tikhonova, N.A.; Polezhaeva, M.A.; Pimenova, E.A.
Аннотация: Using AFLP analysis, the genetic variation in four population samples of Rhododendron ledebourii, three such samples of Rh. dauricum, two samples of Rh. sichotense, and one sample of Rh. mucronulatum was examined. Application of three selective primer pairs provided genotyping of 87 accessions from the four species at 213 loci. An analysis of molecular variance revealed a high level of differences between all four species (F (ST) = 0.172). Populations within the species were also differentiated: for Rh. dauricum F (ST) = 0.245; Rh. ledebourii F (ST) = 0.264; Rh. sichotense F (ST) = 0.034. The highest Nei distance was observed for Rh. mucronulatum with Rh. dauricum and Rh. ledebourii (D = 0.057 and 0.069, respectively). Similarity was observed between the species pairs of Rh. ledebourii-Rh. dauricum (0.032) and Rh. sichotense-Rh. mucronulatum (0.034). The Far Eastern species Rh. sichotense and Rh. mucronulatum were characterized by an elevated level of intrapopulation variation. The data from the AFLP-based analysis of differentiation and variation that were thus obtained were compared with the literature data on the morphological criteria that differentiate the species of interest and those regarding the history of the formation of their ranges. The independence of all the species we examined was confirmed.
Полный текст,
WOS,
Scopus
Держатели документа:
[Tikhonova, N. A.] Russian Acad Sci, Sukachev Forest Inst, Krasnoyarsk 660036, Russia
[Polezhaeva, M. A.] Russian Acad Sci, Inst Plant & Anim Ecol, Ekaterinburg 620144, Russia
[Pimenova, E. A.] Abramov Sikhote Alin State Biosphere Reserve, Primorsky Krai 692150, Terney, Russia
Доп.точки доступа:
Tikhonova, N.A.; Polezhaeva, M.A.; Pimenova, E.A.
Postpyrogenic transformation of soils under Pinus sibirica forests in the southern Lake Baikal basin
/ Y. N. Krasnoshchekov, Y. S. Cherednikova // Eurasian Soil Sci. - 2012. - Vol. 45, Is. 10. - P929-938, DOI 10.1134/S1064229312100055. - Cited References: 24. - This work was supported by the Russian Foundation for Basic Research (project no. 08-04-00027).
. - 10. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The results of experimental investigations of the postpyrogenic dynamics of the widespread rawhumus podzols under Pinus sibirica forests in the southern Lake Baikal basin are discussed. Ground fires transform the diagnostic surface organic soil horizons into organic pyrogenic horizons (Opir, OL/Opir, and AOpir). The adverse effect of ground fires of different intensities on the changes in the reserves, the fractional composition of the litters, and the chemical composition of the organic horizons is shown. The soils of dark coniferous forests are inclined to long-lasting restoration. The Pinus sibirica regrowth under the canopy of deciduous species serves as the basis for the restoration of native stands and the formation of the soils characteristic of the southern part of the Lake Baikal basin.
Полный текст,
WOS,
Scopus
Держатели документа:
[Krasnoshchekov, Yu. N.
Cherednikova, Yu. S.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Krasnoshchekov, Y.N.; Cherednikova, Y.S.
Рубрики:
FIRE
FIRE
Аннотация: The results of experimental investigations of the postpyrogenic dynamics of the widespread rawhumus podzols under Pinus sibirica forests in the southern Lake Baikal basin are discussed. Ground fires transform the diagnostic surface organic soil horizons into organic pyrogenic horizons (Opir, OL/Opir, and AOpir). The adverse effect of ground fires of different intensities on the changes in the reserves, the fractional composition of the litters, and the chemical composition of the organic horizons is shown. The soils of dark coniferous forests are inclined to long-lasting restoration. The Pinus sibirica regrowth under the canopy of deciduous species serves as the basis for the restoration of native stands and the formation of the soils characteristic of the southern part of the Lake Baikal basin.
Полный текст,
WOS,
Scopus
Держатели документа:
[Krasnoshchekov, Yu. N.
Cherednikova, Yu. S.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Krasnoshchekov, Y.N.; Cherednikova, Y.S.
Changes in phenolic acids during maturation and lignification of scots pine xylem
/ G. F. Antonova [et al.] // Russ. J. Dev. Biol. - 2012. - Vol. 43, Is. 4. - P199-208, DOI 10.1134/S1062360412040029. - Cited References: 51. - This work was supported by the Russian Foundation for Basic Research, project no. 06-04-49501.
. - 10. - ISSN 1062-3604
РУБ Developmental Biology
Аннотация: The content and fractional composition of alcohol soluble phenolic acids (PhA) in cells with different degree maturation and lignification in the course of early and late wood formation in the pine (Pinus sylvestris L.) stem during vegetation were studied. Phenolic compounds (PhC), extracted by 80% ethanol, were divided into free and bound fractions of PhA. In turn, the esters and ethers were isolated from bound PhA. The contents of all substances were calculated per dry weight and per cell. Considerable differences have been found to exist in both the contents and the composition of the fractions PhA on successive stages of tracheid maturation of early and late xylem. Early wood tracheids at all secondary wall thickening steps contained PhC less and free PhA more than late wood tracheids. Throughout earlywood tracheid maturation, the pool of free PhA per cell declined at the beginning of lignification and then increased gradually while that of bound PhA decreased. The maturation of late wood tracheids were accompanied by the rise of free PhA pool and the diminution of bound PhA pool. In the composition of bound PhA, the ethers were always dominant, and the amount of that in earlywood cells was less than in latewood cells. The cells of early xylem at all steps of maturation contained more of esters. The sum total of free hydroxycinnamic acids, precursors of monolignols, gradually decreased during early xylem lignification as the result of the reduction of the pools of p-coumaric, caffeic, ferulic and synapic acids, while that of their esters rised. In the course of late xylem lignification, the pools of free p-coumaric, ferulic and, especially, synapic acids increased. Simultaneously, the amount of ferulic acid ester and synapic acid ether increased too. According to the data, lignin biosynthesis in early xylem and late xylem occurs with different dynamics and the structure of lignins of two xylem types might be different too.
Полный текст,
WOS,
Scopus
Держатели документа:
[Antonova, G. F.
Varaksina, T. N.
Zheleznichenko, T. V.
Stasova, V. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Antonova, G.F.; Varaksina, T.N.; Zheleznichenko, T.V.; Stasova, V.V.
Рубрики:
LIGNIN BIOSYNTHESIS
CELL-WALL
ASCORBIC-ACID
HYDROGEN-PEROXIDE
CROSS-LINKING
FERULIC ACID
MECHANISM
OXIDATION
TISSUES
GROWTH
Кл.слова (ненормированные):
Pinus sylvestris L. -- early and late xylem -- secondary thickening and lignification -- phenolic acids
LIGNIN BIOSYNTHESIS
CELL-WALL
ASCORBIC-ACID
HYDROGEN-PEROXIDE
CROSS-LINKING
FERULIC ACID
MECHANISM
OXIDATION
TISSUES
GROWTH
Кл.слова (ненормированные):
Pinus sylvestris L. -- early and late xylem -- secondary thickening and lignification -- phenolic acids
Аннотация: The content and fractional composition of alcohol soluble phenolic acids (PhA) in cells with different degree maturation and lignification in the course of early and late wood formation in the pine (Pinus sylvestris L.) stem during vegetation were studied. Phenolic compounds (PhC), extracted by 80% ethanol, were divided into free and bound fractions of PhA. In turn, the esters and ethers were isolated from bound PhA. The contents of all substances were calculated per dry weight and per cell. Considerable differences have been found to exist in both the contents and the composition of the fractions PhA on successive stages of tracheid maturation of early and late xylem. Early wood tracheids at all secondary wall thickening steps contained PhC less and free PhA more than late wood tracheids. Throughout earlywood tracheid maturation, the pool of free PhA per cell declined at the beginning of lignification and then increased gradually while that of bound PhA decreased. The maturation of late wood tracheids were accompanied by the rise of free PhA pool and the diminution of bound PhA pool. In the composition of bound PhA, the ethers were always dominant, and the amount of that in earlywood cells was less than in latewood cells. The cells of early xylem at all steps of maturation contained more of esters. The sum total of free hydroxycinnamic acids, precursors of monolignols, gradually decreased during early xylem lignification as the result of the reduction of the pools of p-coumaric, caffeic, ferulic and synapic acids, while that of their esters rised. In the course of late xylem lignification, the pools of free p-coumaric, ferulic and, especially, synapic acids increased. Simultaneously, the amount of ferulic acid ester and synapic acid ether increased too. According to the data, lignin biosynthesis in early xylem and late xylem occurs with different dynamics and the structure of lignins of two xylem types might be different too.
Полный текст,
WOS,
Scopus
Держатели документа:
[Antonova, G. F.
Varaksina, T. N.
Zheleznichenko, T. V.
Stasova, V. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Antonova, G.F.; Varaksina, T.N.; Zheleznichenko, T.V.; Stasova, V.V.
Soil formation in the technogenic forest-steppe landscapes of the Nazarovskaya Depression in western Siberia
/ L. S. Shugalei, V. V. Chuprova // Eurasian Soil Sci. - 2012. - Vol. 45, Is. 3. - P246-256, DOI 10.1134/S1064229312030106. - Cited References: 30. - This work was supported by the Russian Foundation for Basic Research (project Siberia no. 09-04-98013).
. - 11. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The soil formation was studied in the 21- to 35-year-old pine plantations created on the overburden dumps of the Nazarovskaya Depression without applying the material of the humus horizon. The surface technogenic formations under the pine plantations belong to the group of naturfabricats (surface formations devoid of the humus horizon and composed of natural substrate). The morphological characteristics, bulk chemical and particle-size compositions, and labile properties of the soils indicate that the accumulation and transformation of organic matter are dominant processes in the artificially planted forests. The accumulation of organic residues and destruction and humification are tightly related to the environmental conditions transformed by the technogenesis and conceal other processes forming the soil profiles. Quasizems created for agricultural production purposes were the objects of the study. They were formed by covering the technically planned overburden rocks with the material of humus layers. The thickness of the humus horizons of the quasizems varies greatly (25-64%); the variation of the humus reserves in them is 34-122%. Middle-profile horizons have not been formed by the present time.
Полный текст,
WOS,
Scopus
Держатели документа:
[Shugalei, L. S.] Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
[Shugalei, L. S.
Chuprova, V. V.] Krasnoyarsk State Agrarian Univ, Krasnoyarsk 660049, Russia
Доп.точки доступа:
Shugalei, L.S.; Chuprova, V.V.
Аннотация: The soil formation was studied in the 21- to 35-year-old pine plantations created on the overburden dumps of the Nazarovskaya Depression without applying the material of the humus horizon. The surface technogenic formations under the pine plantations belong to the group of naturfabricats (surface formations devoid of the humus horizon and composed of natural substrate). The morphological characteristics, bulk chemical and particle-size compositions, and labile properties of the soils indicate that the accumulation and transformation of organic matter are dominant processes in the artificially planted forests. The accumulation of organic residues and destruction and humification are tightly related to the environmental conditions transformed by the technogenesis and conceal other processes forming the soil profiles. Quasizems created for agricultural production purposes were the objects of the study. They were formed by covering the technically planned overburden rocks with the material of humus layers. The thickness of the humus horizons of the quasizems varies greatly (25-64%); the variation of the humus reserves in them is 34-122%. Middle-profile horizons have not been formed by the present time.
Полный текст,
WOS,
Scopus
Держатели документа:
[Shugalei, L. S.] Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
[Shugalei, L. S.
Chuprova, V. V.] Krasnoyarsk State Agrarian Univ, Krasnoyarsk 660049, Russia
Доп.точки доступа:
Shugalei, L.S.; Chuprova, V.V.
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.
Sources and the flux pattern of dissolved carbon in rivers of the Yenisey basin draining the Central Siberian Plateau
[Text] / A. S. Prokushkin [et al.] // Environ. Res. Lett. - 2011. - Vol. 6, Is. 4. - Ст. 45212, DOI 10.1088/1748-9326/6/4/045212. - Cited References: 63. - This work was supported by the joint US-Russia program between the RFBR and CRDF through grants 10-05-92513 and RUG1-2980-KR-10. Additional support was provided by joint Russian-French Programmes EC2CO, Environement Cotier PNEC and GDRI CAR-WET-SIB, ANR 'Arctic metals' and grant 11.G34.31.0014 of Russian Ministry of higher education and science. We greatly thank Sergey Tenishev for assistance with sample collection during harsh winter and spring periods, and Vladimir Ivanov who provided invaluable daily discharge data for the Nizhnyaya Tunguska and Tembenchi Rivers. We thank three anonymous reviewers for their fruitful and constructive comments that allowed improving greatly the quality of presentation.
. - 14. - ISSN 1748-9326
РУБ Environmental Sciences + Meteorology & Atmospheric Sciences
Аннотация: Frequent measurements of dissolved organic (DOC) and inorganic (DIC) carbon concentrations in rivers during snowmelt, the entire ice-free season, and winter were made in five large watersheds (15 000-174 000 km(2)) of the Central Siberian Plateau (Yenisey River basin). These differ in the degree of continuous permafrost coverage, mean annual air temperature, and the proportion of tundra and forest vegetation. With an annual DOC export from the catchment areas of 2.8-4.7 gC m(-2) as compared to an annual DIC export of 1.0-2.8 gC m(-2), DOC was the dominant component of terrigenous C released to rivers. There was strong temporal variation in the discharge of DOC and DIC. Like for other rivers of the pan-arctic and boreal zones, snowmelt dominated annual fluxes, being 55-71% for water runoff, 64-82% for DOC and 37-41% for DIC. Likewise, DOC and DIC exhibited also a strong spatial variation in C fluxes, with both dissolved C species decreasing from south to north. The rivers of the southern part of the plateau had the largest flow-weighted DOC concentrations among those previously reported for Siberian rivers, but the smallest flow-weighted DIC concentrations. In the study area, DOC and DIC fluxes were negatively correlated with the distribution of continuous permafrost and positively correlated with mean annual air temperature. A synthesis of literature data shows similar trends from west to east, with an eastward decrease of dissolved C concentrations and an increased proportion of DOC in the total dissolved C flux. It appears that there are two contemporary limitations for river export of terrigenous C across Siberia: (1) low productivity of ecosystems with respect to potentially mobilizable organic C, slow weathering rates with concomitant small formation of bicarbonate, and/or wildfire disturbance limit the pools of organic and inorganic C that can be mobilized for transport in rivers (source-limited), and (2) mobilization of available pools of C is constrained by low precipitation in the severe continental climate of interior Siberia (transport-limited). Climate warming may reduce the source limitation by enhancing primary production and weathering rates, while causes leading to surmounting the transport limitation remain debatable due to uncertainties in predictions of precipitation trends and other likely sources of reported increase of river discharges.
WOS,
Scopus
Держатели документа:
[Prokushkin, A. S.
Korets, M. A.
Prokushkin, S. G.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Pokrovsky, O. S.
Shirokova, L. S.
Viers, J.] Univ Toulouse 3, CNRS, IRD, LMTG OMP, F-31400 Toulouse, France
[Amon, R. M. W.] Texas A&M Univ, Dept Marine Sci, Galveston, TX 77553 USA
[Guggenberger, G.] Leibniz Univ Hannover, Inst Bodenkunde, D-30419 Hannover, Germany
[McDowell, W. H.] Univ New Hampshire, Dept Nat Resources & Environm, Durham, NH 03824 USA
Доп.точки доступа:
Prokushkin, A.S.; Pokrovsky, O.S.; Shirokova, L.S.; Korets, M.A.; Viers, J...; Prokushkin, S.G.; Amon, RMW; Guggenberger, G...; McDowell, W.H.
Рубрики:
ORGANIC-CARBON
CONTINUOUS PERMAFROST
NORTHERN SIBERIA
TRACE-ELEMENTS
CLIMATE-CHANGE
ARCTIC-OCEAN
WATER
BIOGEOCHEMISTRY
GENERATION
SPECIATION
Кл.слова (ненормированные):
dissolved carbon -- riverine flux -- permafrost -- Central Siberian Plateau
ORGANIC-CARBON
CONTINUOUS PERMAFROST
NORTHERN SIBERIA
TRACE-ELEMENTS
CLIMATE-CHANGE
ARCTIC-OCEAN
WATER
BIOGEOCHEMISTRY
GENERATION
SPECIATION
Кл.слова (ненормированные):
dissolved carbon -- riverine flux -- permafrost -- Central Siberian Plateau
Аннотация: Frequent measurements of dissolved organic (DOC) and inorganic (DIC) carbon concentrations in rivers during snowmelt, the entire ice-free season, and winter were made in five large watersheds (15 000-174 000 km(2)) of the Central Siberian Plateau (Yenisey River basin). These differ in the degree of continuous permafrost coverage, mean annual air temperature, and the proportion of tundra and forest vegetation. With an annual DOC export from the catchment areas of 2.8-4.7 gC m(-2) as compared to an annual DIC export of 1.0-2.8 gC m(-2), DOC was the dominant component of terrigenous C released to rivers. There was strong temporal variation in the discharge of DOC and DIC. Like for other rivers of the pan-arctic and boreal zones, snowmelt dominated annual fluxes, being 55-71% for water runoff, 64-82% for DOC and 37-41% for DIC. Likewise, DOC and DIC exhibited also a strong spatial variation in C fluxes, with both dissolved C species decreasing from south to north. The rivers of the southern part of the plateau had the largest flow-weighted DOC concentrations among those previously reported for Siberian rivers, but the smallest flow-weighted DIC concentrations. In the study area, DOC and DIC fluxes were negatively correlated with the distribution of continuous permafrost and positively correlated with mean annual air temperature. A synthesis of literature data shows similar trends from west to east, with an eastward decrease of dissolved C concentrations and an increased proportion of DOC in the total dissolved C flux. It appears that there are two contemporary limitations for river export of terrigenous C across Siberia: (1) low productivity of ecosystems with respect to potentially mobilizable organic C, slow weathering rates with concomitant small formation of bicarbonate, and/or wildfire disturbance limit the pools of organic and inorganic C that can be mobilized for transport in rivers (source-limited), and (2) mobilization of available pools of C is constrained by low precipitation in the severe continental climate of interior Siberia (transport-limited). Climate warming may reduce the source limitation by enhancing primary production and weathering rates, while causes leading to surmounting the transport limitation remain debatable due to uncertainties in predictions of precipitation trends and other likely sources of reported increase of river discharges.
WOS,
Scopus
Держатели документа:
[Prokushkin, A. S.
Korets, M. A.
Prokushkin, S. G.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Pokrovsky, O. S.
Shirokova, L. S.
Viers, J.] Univ Toulouse 3, CNRS, IRD, LMTG OMP, F-31400 Toulouse, France
[Amon, R. M. W.] Texas A&M Univ, Dept Marine Sci, Galveston, TX 77553 USA
[Guggenberger, G.] Leibniz Univ Hannover, Inst Bodenkunde, D-30419 Hannover, Germany
[McDowell, W. H.] Univ New Hampshire, Dept Nat Resources & Environm, Durham, NH 03824 USA
Доп.точки доступа:
Prokushkin, A.S.; Pokrovsky, O.S.; Shirokova, L.S.; Korets, M.A.; Viers, J...; Prokushkin, S.G.; Amon, RMW; Guggenberger, G...; McDowell, W.H.