/ F.Z. Glebov // Climatic Change. - 2002. - Vol. 55, № 1-2. - С. 175-181
Аннотация: The developmental history of peatland and dry land vegetation within the Ob-Vasugan watershed of Western Siberia was characterized according to features of the plant communities and climatic changes which were revealed by stratigraphic, spore-pollen and C-14 (carbon) data obtained from a vertical peat profile 'Vodorasdel'. Changes in the paleoecological environment over the last 10000 years were divided into five periods. The climate was characterized in the Holocene according to these periods. At the watershed studied, peatland-forming processes started about 9510 years ago resulting in 550 cm of peat accumulation. The rate of peat accumulation within the watershed decreased over time from 1.9-0.3 mm year(-1).
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Полный текст
Держатели документа:
Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Karpenko, Lyudmila Vasil'yevna; Карпенко, Людмила Васильевна; Dashkovskaya, Irina Samuilovna; Дашковская, Ирина Соломоновна; Глебов, Феликс Зиновьевич
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
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Climatic changes, successions of peatlands and zonal vegetation, and peat accumulation dynamics in the Holocene (the West-Siberia peat profile "Vodorosdel")
Net ecosystem productivity and peat accumulation in a Siberian Aapa mire
/ E. -D. Schulze, A. S. Prokushkin, E. A. Vaganov // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 531-536
Аннотация: Net ecosystem productivity (NEP) was studied in a bog located in the middle taiga of Siberia using two approaches, the accumulation of peat above the hypocotyl of pine trees, and the eddy covariance flux methodology. NEP was 0.84 tC ha(-1) yr(-1) using the peat accumulation method; it was 0.43-0.62 tC ha(-1) yr(-1) using eddy covariance over three growing seasons. These data were compared with NEP of the surrounding forest, which was 0.6 tC +/- 1.1 hat yr(-1). The trees growing on the bog reached a total height of about 3 m and an age of 80-120 yr when peat accumulation reached 0.5-0.6 m. At that stage the growth rate of the oldest trees declined. This indicates that there is a maximum age that can be reached by trees growing on hummocks (150 yr), depending on conditions. The data show that the determination of NEP in bogs by using the peat accumulation above the hypocotyl is a useful method which can be applied on a wide range of bog types, but it may systematically overestimate NEP. The total sink capacity for carbon assimilation of bogs is comparable to that of forest, although methane emissions and losses of dissolved organic carbon must be taken into account when assessing the regional carbon cycle.
WOS
Держатели документа:
Russian Acad Sci, VN Sukacehv Forest Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Schulze, E.-D.; Шульце Е-Д; Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович
Аннотация: Net ecosystem productivity (NEP) was studied in a bog located in the middle taiga of Siberia using two approaches, the accumulation of peat above the hypocotyl of pine trees, and the eddy covariance flux methodology. NEP was 0.84 tC ha(-1) yr(-1) using the peat accumulation method; it was 0.43-0.62 tC ha(-1) yr(-1) using eddy covariance over three growing seasons. These data were compared with NEP of the surrounding forest, which was 0.6 tC +/- 1.1 hat yr(-1). The trees growing on the bog reached a total height of about 3 m and an age of 80-120 yr when peat accumulation reached 0.5-0.6 m. At that stage the growth rate of the oldest trees declined. This indicates that there is a maximum age that can be reached by trees growing on hummocks (150 yr), depending on conditions. The data show that the determination of NEP in bogs by using the peat accumulation above the hypocotyl is a useful method which can be applied on a wide range of bog types, but it may systematically overestimate NEP. The total sink capacity for carbon assimilation of bogs is comparable to that of forest, although methane emissions and losses of dissolved organic carbon must be taken into account when assessing the regional carbon cycle.
WOS
Держатели документа:
Russian Acad Sci, VN Sukacehv Forest Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Schulze, E.-D.; Шульце Е-Д; Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Vaganov, Yevgeny Alexandrovich; Ваганов Евгений Александрович
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
Сравнение микробной активности мерзлотных болот на Севере Восточной Сибири
[Текст] = Comparison of microbial activity of the permafrost bogs in the North of Middle Siberia : материалы временных коллективов / С. Н. Сырцов // 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. 55-57. - Библиогр. в конце ст.
Аннотация: Microbial activity of the permafrost peat lands B3 and B4 in Central Evenkya is higher than in subarctic bogs (B1S). Methanotrophic activity in the B1S is 1.2 to 2.7 times higher than in the B3 and B4. Microbocenosis ecophisiological condition (QR1) in all bogs shows their ecological stability.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Syrtsov Sergey Nikolayevich
Аннотация: Microbial activity of the permafrost peat lands B3 and B4 in Central Evenkya is higher than in subarctic bogs (B1S). Methanotrophic activity in the B1S is 1.2 to 2.7 times higher than in the B3 and B4. Microbocenosis ecophisiological condition (QR1) in all bogs shows their ecological stability.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50/28
Доп.точки доступа:
Syrtsov Sergey Nikolayevich
Reconstruction of forest ecosystem Holocene dynamics in the left bank of Kas River (Krasnoyarsk Region)
/ L. V. Karpenko, N. A. Rudaya // Contemp. Probl. Ecol. - 2013. - Vol. 6, Is. 2. - P137-142, DOI 10.1134/S1995425513020066. - Cited References: 12. - This work was supported by the Presidium of the Russian Academy of Sciences (program "Biological Diversity," project of the Siberian Branch, Russian Academy of Sciences, no. 26.2) and the Russian Foundation for Basic Research (project no. 09-04-01-380).
. - 6. - ISSN 1995-4255
РУБ Ecology
Кл.слова (ненормированные):
swamp -- peat deposit -- pollen analysis -- climate and vegetation reconstruction -- forest cover dynamics -- Holocene
Аннотация: A reconstruction of forest-cover dynamics in the northern part of the Kas River basin has been done for the first time. This study based on a palynological analysis of the peat profile. Six pollen zones and respective phases of forest evolution are distinguished. It is inferred that changes in the forest species composition over the last 8000 years were determined by variations in the global and regional climate. The warm and humid climate of the Atlantic period promoted the development of dark coniferous birch-spruce-fir forests. Cooling and smaller precipitation in the Subboreal period led to a change in dominant species to Scotch pine and birch-Siberian pine forests with an admixture of spruce and fir. In the Subatlantic period, closed coniferous forests eventually evolved, with Siberian pine-pine remaining dominant.
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Держатели документа:
[Karpenko, L. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Rudaya, N. A.] Russian Acad Sci, Siberian Branch, Inst Archaeol & Ethnog, Novosibirsk, Russia
Доп.точки доступа:
Karpenko, L.V.; Rudaya, N.A.
Кл.слова (ненормированные):
swamp -- peat deposit -- pollen analysis -- climate and vegetation reconstruction -- forest cover dynamics -- Holocene
Аннотация: A reconstruction of forest-cover dynamics in the northern part of the Kas River basin has been done for the first time. This study based on a palynological analysis of the peat profile. Six pollen zones and respective phases of forest evolution are distinguished. It is inferred that changes in the forest species composition over the last 8000 years were determined by variations in the global and regional climate. The warm and humid climate of the Atlantic period promoted the development of dark coniferous birch-spruce-fir forests. Cooling and smaller precipitation in the Subboreal period led to a change in dominant species to Scotch pine and birch-Siberian pine forests with an admixture of spruce and fir. In the Subatlantic period, closed coniferous forests eventually evolved, with Siberian pine-pine remaining dominant.
Полный текст,
WOS,
Scopus
Держатели документа:
[Karpenko, L. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Rudaya, N. A.] Russian Acad Sci, Siberian Branch, Inst Archaeol & Ethnog, Novosibirsk, Russia
Доп.точки доступа:
Karpenko, L.V.; Rudaya, N.A.
Microbial activity of peat soils of boggy larch forests and bogs in the permafrost zone of central Evenkia
/ I. D. Grodnitskaya [et al.] // Eurasian Soil Sci. - 2013. - Vol. 46, Is. 1. - P61-73, DOI 10.1134/S1064229313010043. - Cited References: 39. - This work was supported by the Russian Foundation for Basic Research (project nos. 09-04-01380-a, 11-05-00374-a, and 11-04-01884-a) and by the Ministry of Education and Science of the Russian Federation (project no. 2.1.1/6611).
. - 13. - ISSN 1064-2293
РУБ Soil Science
Кл.слова (ненормированные):
cryogenic soils -- boggy larch forests -- oligo-mesotrophic bog -- microbiological activity -- SIR method
Аннотация: The microbial activity of peat soils was studied in boggy larch forests and in an oligo-mesotrophic bog in the basins of the Kochechum and Nizhnaya Tunguska rivers (central Evenkia). It was found that the organic matter transformation in the peat soils of all the plots is mainly performed by oligotrophic bacteria composing 88-98% of the total bacterial complex. The major contribution to the organic matter destruction belonged to the heterotrophic microorganisms, the activity of which depended on the permafrost depth and the soil temperature, the soil acidity, and the botanical composition of the peat. Peat soils were characterized by different activities as judged from their microbiological and biochemical parameters. The functioning of microbial communities in the studied ecotopes of the permafrost zone was within the range of natural variations, which pointed to their ecological stability.
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Держатели документа:
[Grodnitskaya, I. D.
Karpenko, L. V.
Knorre, A. A.
Syrtsov, S. N.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Grodnitskaya, I.D.; Karpenko, L.V.; Knorre, A.A.; Syrtsov, S.N.
Кл.слова (ненормированные):
cryogenic soils -- boggy larch forests -- oligo-mesotrophic bog -- microbiological activity -- SIR method
Аннотация: The microbial activity of peat soils was studied in boggy larch forests and in an oligo-mesotrophic bog in the basins of the Kochechum and Nizhnaya Tunguska rivers (central Evenkia). It was found that the organic matter transformation in the peat soils of all the plots is mainly performed by oligotrophic bacteria composing 88-98% of the total bacterial complex. The major contribution to the organic matter destruction belonged to the heterotrophic microorganisms, the activity of which depended on the permafrost depth and the soil temperature, the soil acidity, and the botanical composition of the peat. Peat soils were characterized by different activities as judged from their microbiological and biochemical parameters. The functioning of microbial communities in the studied ecotopes of the permafrost zone was within the range of natural variations, which pointed to their ecological stability.
Полный текст,
WOS,
Scopus
Держатели документа:
[Grodnitskaya, I. D.
Karpenko, L. V.
Knorre, A. A.
Syrtsov, S. N.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Grodnitskaya, I.D.; Karpenko, L.V.; Knorre, A.A.; Syrtsov, S.N.
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.
Correlation between the morphogenetic types of litter and their properties in bog birch forests
[Text] / T. T. Efremova, S. P. Efremov, A. F. Avrova // Eurasian Soil Sci. - 2010. - Vol. 43, Is. 8. - P858-866, DOI 10.1134/S106422931008003X. - Cited References: 11. - This work was supported by the Russian Foundation for Basic Research, project no. 08-04-92501.
. - 9. - ISSN 1064-2293
РУБ Soil Science
Аннотация: A formalized arrangement of morphogenetic types of litter according to the physicochemical parameters provided their significant grouping in three genetic associations. The litter group (highly decomposed + moderately decomposed) is confined to the tall-grass group of bog birch forests. The rhizomatous (roughly decomposed) litter is formed in the sedge-reed grass bog birch forests. The litter group (peaty + peatified + peat) is associated with the bog-herbaceous-moss group of forest types. The genetic associations of the litters (a) reliably characterize the edaphic conditions of bog birch forests and (b)correspond to formation of the peat of certain ecological groups. We found highly informative the acid-base parameters, the exchangeable cations (Ca(2+) + Mg(2+)) and the total potential acidity, which differentiated the genetic associations of litter practically with 100% probability. The expediency of studying litters under groups of forest types rather than under separate types of bog birch forests was demonstrated.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Efremov, S. P.
Avrova, A. F.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Akad Gorodok, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Avrova, A.F.
Аннотация: A formalized arrangement of morphogenetic types of litter according to the physicochemical parameters provided their significant grouping in three genetic associations. The litter group (highly decomposed + moderately decomposed) is confined to the tall-grass group of bog birch forests. The rhizomatous (roughly decomposed) litter is formed in the sedge-reed grass bog birch forests. The litter group (peaty + peatified + peat) is associated with the bog-herbaceous-moss group of forest types. The genetic associations of the litters (a) reliably characterize the edaphic conditions of bog birch forests and (b)correspond to formation of the peat of certain ecological groups. We found highly informative the acid-base parameters, the exchangeable cations (Ca(2+) + Mg(2+)) and the total potential acidity, which differentiated the genetic associations of litter practically with 100% probability. The expediency of studying litters under groups of forest types rather than under separate types of bog birch forests was demonstrated.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Efremov, S. P.
Avrova, A. F.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Akad Gorodok, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Avrova, A.F.
Reconstruction of Paleohydrological Regime, Vegetation Change, and Peat Accumulation in a Bog in the Kas-Sym Interfluve
[Text] / L. V. Karpenko // Contemp. Probl. Ecol. - 2010. - Vol. 3, Is. 2. - P221-227, DOI 10.1134/S199542551002013X. - Cited References: 12
. - 7. - ISSN 1995-4255
РУБ Ecology
Кл.слова (ненормированные):
bog -- reconstruction -- paleohydrological regime -- vegetation changes -- peat accumulation
Аннотация: Comprehensive stratigraphic analyses of a standard peat profile laid on a large oligotrophic bog in the interfluve of Kas and Sym rivers, left tributaries of the Yenisei River, allowed reconstruction of local vegetation change and hydrological regime over a period of seven thousand years. The established three stages in vegetation succession in a local bog correspond to different degree of humidification. The development of bog ecosystem is found to be scarcely affected by regional climate. The process and rate of peat accumulation varied in different periods of the Holocene. The average rate of peat accumulation in the profile was 0.88 mm/year.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Karpenko, L.V.
Кл.слова (ненормированные):
bog -- reconstruction -- paleohydrological regime -- vegetation changes -- peat accumulation
Аннотация: Comprehensive stratigraphic analyses of a standard peat profile laid on a large oligotrophic bog in the interfluve of Kas and Sym rivers, left tributaries of the Yenisei River, allowed reconstruction of local vegetation change and hydrological regime over a period of seven thousand years. The established three stages in vegetation succession in a local bog correspond to different degree of humidification. The development of bog ecosystem is found to be scarcely affected by regional climate. The process and rate of peat accumulation varied in different periods of the Holocene. The average rate of peat accumulation in the profile was 0.88 mm/year.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Karpenko, L.V.
Structural and dynamic features of microbial complexes of forest-swamp ecosystems in West Siberia
[Text] / I. D. Grodnitskaya, N. D. Sorokin // Contemp. Probl. Ecol. - 2008. - Vol. 1, Is. 2. - P245-249, DOI 10.1134/S1995425508020112. - Cited References: 19. - The work was supported by grants of the RFBR-BFBR 00-04-81097 bel2000a and RFBR 05-04-97703-r_enisei_a.
. - 5. - ISSN 1995-4255
РУБ Ecology
Аннотация: In deep peat soils of forest-swamp ecosystems of West Siberia, the structural, dynamic and functional features of microbial complexes are estimated. Data on biological and chemical activity of peat deposits in the context of processes of organic matter decomposition and humus accumulation are presented. Quantitative indicators of microbiological mineralization and soil oligotrophicity are given, and their coefficients are calculated. The pool of microorganisms of a 8 meter thick layer is calculated for estimating the degree to which the forest-swamp soils are enriched with microflora.
Полный текст,
WOS
Держатели документа:
[Grodnitskaya, I. D.
Sorokin, N. D.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Grodnitskaya, I.D.; Sorokin, N.D.
Аннотация: In deep peat soils of forest-swamp ecosystems of West Siberia, the structural, dynamic and functional features of microbial complexes are estimated. Data on biological and chemical activity of peat deposits in the context of processes of organic matter decomposition and humus accumulation are presented. Quantitative indicators of microbiological mineralization and soil oligotrophicity are given, and their coefficients are calculated. The pool of microorganisms of a 8 meter thick layer is calculated for estimating the degree to which the forest-swamp soils are enriched with microflora.
Полный текст,
WOS
Держатели документа:
[Grodnitskaya, I. D.
Sorokin, N. D.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Grodnitskaya, I.D.; Sorokin, N.D.
The assessment of the organic matter state in drained peat soils as related to the environmental conditions by the methods of multidimensional statistics
[Text] / T. T. Efremova, T. M. Ovchinnikova // Eurasian Soil Sci. - 2007. - Vol. 40, Is. 12. - P1298-1307, DOI 10.1134/S106422930712006X. - Cited References: 11
. - 10. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The specificity of the group and fraction composition of the organic matter in peat soils drained to a different extent that have developed for a 20-to 25-year period of hydro-and forest amelioration was characterized using the methods of multidimensional statistics. The differences in the organic matter of the soils studied are mainly determined by the contents of humic and fulvic acid of fractions 1 and 3, as well as of hemicelluloses and cellulose. The degree and depth of the humification are inversely related to the soil moisture and directly related to the peroxidase activity.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Ovchinnikova, T. M.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Ovchinnikova, T.M.
Аннотация: The specificity of the group and fraction composition of the organic matter in peat soils drained to a different extent that have developed for a 20-to 25-year period of hydro-and forest amelioration was characterized using the methods of multidimensional statistics. The differences in the organic matter of the soils studied are mainly determined by the contents of humic and fulvic acid of fractions 1 and 3, as well as of hemicelluloses and cellulose. The degree and depth of the humification are inversely related to the soil moisture and directly related to the peroxidase activity.
Полный текст,
WOS,
Scopus
Держатели документа:
[Efremova, T. T.
Ovchinnikova, T. M.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Ovchinnikova, T.M.
Oxidoreductase activity of peat soils as an indicator of the degree of biochemical transformation of drained and forested bogs in West Siberia
[Text] / T. T. Efremova, T. M. Ovchinnikova // Biol. Bull. - 2007. - Vol. 34, Is. 3. - P297-302, DOI 10.1134/S1062359007030132. - Cited References: 12
. - 6. - ISSN 1062-3590
РУБ Biology
Аннотация: Multivariate analysis unambiguously demonstrated the differentiation of oxidoreductase activity (catalase, peroxidase, and dehydrogenase) in peat soils after a 20-25-year period of bog drainage and afforestation. The enzyme activity depended on the drainage depth. A statistical model has been developed to predict the degree of humification of peat organic matter from peroxidase activity and moisture of drained soils. Soil peroxidase activity can be an important indicator of the degree of biochemical transformation of drained and forested bogs.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Ovchinnikova, T.M.
Аннотация: Multivariate analysis unambiguously demonstrated the differentiation of oxidoreductase activity (catalase, peroxidase, and dehydrogenase) in peat soils after a 20-25-year period of bog drainage and afforestation. The enzyme activity depended on the drainage depth. A statistical model has been developed to predict the degree of humification of peat organic matter from peroxidase activity and moisture of drained soils. Soil peroxidase activity can be an important indicator of the degree of biochemical transformation of drained and forested bogs.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Ovchinnikova, T.M.
Soil-microbiological monitoring of forest-mire ecosystems in Western Siberia
[Text] / I. D. Grodnitskaya, N. D. Sorokin // Eurasian Soil Sci. - 2004. - Vol. 37, Is. 8. - P824-829. - Cited References: 21
. - 6. - ISSN 1064-2293
РУБ Soil Science
Аннотация: New data on the structure, dynamics, and functioning of microbiological complexes in deep peat soils of Western Siberia are obtained. The highest population densities of microorganisms are registered in the zone of active peat accumulation with oxidizing conditions (I-Ox, 0-10 cm), in the zone with alternating reducing and oxidizing conditions (IIOx-Red, 50-100 cm), in the zone with permanently reducing conditions (IIIRed1, 250-350 cm), and in the zone with sharply reducing conditions (IVRed2, 550-675 cm). The oxidative type of microbial metabolism initiated by aerobic and facultative anaerobic microorganisms of the heterotrophic cycle is typical of the studied low-moor peat soils.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Grodnitskaya, I.D.; Sorokin, N.D.
Аннотация: New data on the structure, dynamics, and functioning of microbiological complexes in deep peat soils of Western Siberia are obtained. The highest population densities of microorganisms are registered in the zone of active peat accumulation with oxidizing conditions (I-Ox, 0-10 cm), in the zone with alternating reducing and oxidizing conditions (IIOx-Red, 50-100 cm), in the zone with permanently reducing conditions (IIIRed1, 250-350 cm), and in the zone with sharply reducing conditions (IVRed2, 550-675 cm). The oxidative type of microbial metabolism initiated by aerobic and facultative anaerobic microorganisms of the heterotrophic cycle is typical of the studied low-moor peat soils.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Grodnitskaya, I.D.; Sorokin, N.D.
Interpretation of radiocarbon data on the age of different structural elements of a naturally drained peatland
[Text] / T. T. Efremova, S. P. Efremov, L. A. Orlova // Eurasian Soil Sci. - 2003. - Vol. 36, Is. 10. - P1037-1044. - Cited References: 25
. - 8. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The degree of aggregation of peat substrate and the size of structural elements can be used to distinguish between different stages of a peatland evolution and characterize relic features in the profile of modern peat soil. Carbon fractions separated from different aggregates are indicative of the age of peat accumulated in the period of active growth of the peatland and of the age of peat transformed during the peatland drying. On the basis of these data, annual rates of peat growth at different evolution stages can be determined, as well as the rates of organic carbon sequestration and the amount of peat forming from plant remains.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Div, Joint Inst Geol Geophys & Mineral, Novosibirsk 630090, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Orlova, L.A.
Аннотация: The degree of aggregation of peat substrate and the size of structural elements can be used to distinguish between different stages of a peatland evolution and characterize relic features in the profile of modern peat soil. Carbon fractions separated from different aggregates are indicative of the age of peat accumulated in the period of active growth of the peatland and of the age of peat transformed during the peatland drying. On the basis of these data, annual rates of peat growth at different evolution stages can be determined, as well as the rates of organic carbon sequestration and the amount of peat forming from plant remains.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Div, Joint Inst Geol Geophys & Mineral, Novosibirsk 630090, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Orlova, L.A.
Biogeochemistry of fe, Mn, Cr, Ni, Co, Ti, V, Mo, Ta, W, and U in a low moor peat deposit of the Ob'-Tom' interfluve
[Text] / T. T. Efremova [et al.] // Eurasian Soil Sci. - 2003. - Vol. 36, Is. 5. - P501-510. - Cited References: 25
. - 10. - ISSN 1064-2293
РУБ Soil Science
Аннотация: No accumulation of heavy metals was revealed in the deep (7.5 m) central zone of a eutrophic peatbog. Ti and W are the most dispersed elements in the peat deposit; Fe, Mo, and Mn are the most accumulated elements. The distribution of heavy metals during peat genesis depends on the quality of sorption humus barriers, and the redox zonality of the peat deposit and, hence, is indicative of the redox stages of boo evolution. Mo is a universal indicator element; its distribution in the peat profile clearly differentiates the redox conditions in both oxidative and reductive environments.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Chem Kinet & Combust, Siberian Div, Novosibirsk 630090, Russia
Joint Inst Nucl Res, Dubna 141980, Moscow Oblast, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Kutsenogii, K.P.; Onuchin, A.A.; Peresedov, V.F.
Аннотация: No accumulation of heavy metals was revealed in the deep (7.5 m) central zone of a eutrophic peatbog. Ti and W are the most dispersed elements in the peat deposit; Fe, Mo, and Mn are the most accumulated elements. The distribution of heavy metals during peat genesis depends on the quality of sorption humus barriers, and the redox zonality of the peat deposit and, hence, is indicative of the redox stages of boo evolution. Mo is a universal indicator element; its distribution in the peat profile clearly differentiates the redox conditions in both oxidative and reductive environments.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Chem Kinet & Combust, Siberian Div, Novosibirsk 630090, Russia
Joint Inst Nucl Res, Dubna 141980, Moscow Oblast, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Kutsenogii, K.P.; Onuchin, A.A.; Peresedov, V.F.
Net ecosystem productivity and peat accumulation in a Siberian Aapa mire
[Text] / E. D. Schulze [et al.] // Tellus Ser. B-Chem. Phys. Meteorol. - 2002. - Vol. 54, Is. 5. - P531-536, DOI 10.1034/j.1600-0889.2002.01386.x. - Cited References: 21
. - 6. - ISSN 0280-6509
РУБ Meteorology & Atmospheric Sciences
Аннотация: Net ecosystem productivity (NEP) was studied in a bog located in the middle taiga of Siberia using two approaches, the accumulation of peat above the hypocotyl of pine trees, and the eddy covariance flux methodology. NEP was 0.84 tC ha(-1) yr(-1) using the peat accumulation method; it was 0.43-0.62 tC ha(-1) yr(-1) using eddy covariance over three growing seasons. These data were compared with NEP of the surrounding forest, which was 0.6 tC +/- 1.1 hat yr(-1). The trees growing on the bog reached a total height of about 3 m and an age of 80-120 yr when peat accumulation reached 0.5-0.6 m. At that stage the growth rate of the oldest trees declined. This indicates that there is a maximum age that can be reached by trees growing on hummocks (150 yr), depending on conditions. The data show that the determination of NEP in bogs by using the peat accumulation above the hypocotyl is a useful method which can be applied on a wide range of bog types, but it may systematically overestimate NEP. The total sink capacity for carbon assimilation of bogs is comparable to that of forest, although methane emissions and losses of dissolved organic carbon must be taken into account when assessing the regional carbon cycle.
WOS,
Scopus
Держатели документа:
Max Planck Inst Biogeochem, D-7701 Jena, Germany
RAS, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Schulze, E.D.; Prokuschkin, A...; Arneth, A...; Knorre, N...; Vaganov, E.A.
Аннотация: Net ecosystem productivity (NEP) was studied in a bog located in the middle taiga of Siberia using two approaches, the accumulation of peat above the hypocotyl of pine trees, and the eddy covariance flux methodology. NEP was 0.84 tC ha(-1) yr(-1) using the peat accumulation method; it was 0.43-0.62 tC ha(-1) yr(-1) using eddy covariance over three growing seasons. These data were compared with NEP of the surrounding forest, which was 0.6 tC +/- 1.1 hat yr(-1). The trees growing on the bog reached a total height of about 3 m and an age of 80-120 yr when peat accumulation reached 0.5-0.6 m. At that stage the growth rate of the oldest trees declined. This indicates that there is a maximum age that can be reached by trees growing on hummocks (150 yr), depending on conditions. The data show that the determination of NEP in bogs by using the peat accumulation above the hypocotyl is a useful method which can be applied on a wide range of bog types, but it may systematically overestimate NEP. The total sink capacity for carbon assimilation of bogs is comparable to that of forest, although methane emissions and losses of dissolved organic carbon must be taken into account when assessing the regional carbon cycle.
WOS,
Scopus
Держатели документа:
Max Planck Inst Biogeochem, D-7701 Jena, Germany
RAS, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Schulze, E.D.; Prokuschkin, A...; Arneth, A...; Knorre, N...; Vaganov, E.A.
Accumulation of Cs-137 in peatbogs on the Ob and Tom' river interfluve
[Text] / T. T. Efremova [et al.] // Eurasian Soil Sci. - 2002. - Vol. 35, Is. 1. - P91-98. - Cited References: 22
. - 8. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The migration of Cs-137 into deep peat layers is mainly determined by long-term annual fluctuations in the ground-water level and depends considerably on the microrelief of the bog surface. Radiocesium was found to be retained selectively by humic and fulvic acids of the first (0.1 N NaOH-extractable) fraction. A close correlation of cesium retention with the ash content in peat was observed. The accumulation of Cs-137 in root-inhabited horizons is enhanced by soil biota. The level of contamination of oligotrophic peatbogs corresponds to the background cesium concentrations in mineral soils of Western Siberia.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Div, Joint Inst Geol Geophys & Mineral, Novosibirsk 630090, Russia
Доп.точки доступа:
Efremova, T.T.; Sukhorukov, F.V.; Efremov, S.P.; Budashkina, V.V.
Аннотация: The migration of Cs-137 into deep peat layers is mainly determined by long-term annual fluctuations in the ground-water level and depends considerably on the microrelief of the bog surface. Radiocesium was found to be retained selectively by humic and fulvic acids of the first (0.1 N NaOH-extractable) fraction. A close correlation of cesium retention with the ash content in peat was observed. The accumulation of Cs-137 in root-inhabited horizons is enhanced by soil biota. The level of contamination of oligotrophic peatbogs corresponds to the background cesium concentrations in mineral soils of Western Siberia.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Div, Joint Inst Geol Geophys & Mineral, Novosibirsk 630090, Russia
Доп.точки доступа:
Efremova, T.T.; Sukhorukov, F.V.; Efremov, S.P.; Budashkina, V.V.
Nitrogen in Russian bogs
[Text] / T. T. Efremova, S. P. Efremov, N. V. Melent'eva // Eurasian Soil Sci. - 2000. - Vol. 33, Is. 9. - P934-946. - Cited References: 64
. - 13. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The nitrogen pool in Russian peatlands reaches 4.69 x 10(9) t. Half of this amount is stored in humic substances (mainly, in humic acids) of peat. The nitrogen of relatively stable compounds (mainly, the humin nitrogen) constitutes about 1.8 x 10(9) t. Easily hydrolyzable and mineral nitrogen compounds constitute 9.7 and 1.8% of the total nitrogen pool, respectively. Most of the nitrogen in eutrophic bogs is bound with humic substances, while that of oligotrophic peat is represented by poorly hydrolyzable and nonhydrolyzable forms. The pool of water-soluble nitrogen constitutes 20.3 x 10(6) t, or 0.43% of the total nitrogen reserve. In the case of global warming, eutrophic and mesotrophic bogs can become an important source of ammonia emission to the atmosphere.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Melent'eva, N.V.
Рубрики:
SOILS
SOILS
Аннотация: The nitrogen pool in Russian peatlands reaches 4.69 x 10(9) t. Half of this amount is stored in humic substances (mainly, in humic acids) of peat. The nitrogen of relatively stable compounds (mainly, the humin nitrogen) constitutes about 1.8 x 10(9) t. Easily hydrolyzable and mineral nitrogen compounds constitute 9.7 and 1.8% of the total nitrogen pool, respectively. Most of the nitrogen in eutrophic bogs is bound with humic substances, while that of oligotrophic peat is represented by poorly hydrolyzable and nonhydrolyzable forms. The pool of water-soluble nitrogen constitutes 20.3 x 10(6) t, or 0.43% of the total nitrogen reserve. In the case of global warming, eutrophic and mesotrophic bogs can become an important source of ammonia emission to the atmosphere.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Melent'eva, N.V.
The Holocene dynamics of vegetation and the upper forest limit in the Polar Urals
[Text] / V. L. Koshkarova, L. V. Karpenko, L. A. Orlova // Russ. J. Ecol. - 1999. - Vol. 30, Is. 2. - P102-106. - Cited References: 16
. - 5. - ISSN 1067-4136
РУБ Ecology
Аннотация: The species structure of forest vegetation and climate in the Holocene was reconstructed on the basis of analysis of macroscopic plant remnants, botanical analysis of peat, and radiocarbon dating performed in the Polar Ural peatland (Mount Rai-Iz). The results showed that the upper forest limit repeatedly migrated upward for 220-400 m in the periods of:warming and retreated during cold periods. Brief cold periods proved to cause abrupt changes in the composition of tree species as more dynamic plants.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Koshkarova, V.L.; Karpenko, L.V.; Orlova, L.A.
Аннотация: The species structure of forest vegetation and climate in the Holocene was reconstructed on the basis of analysis of macroscopic plant remnants, botanical analysis of peat, and radiocarbon dating performed in the Polar Ural peatland (Mount Rai-Iz). The results showed that the upper forest limit repeatedly migrated upward for 220-400 m in the periods of:warming and retreated during cold periods. Brief cold periods proved to cause abrupt changes in the composition of tree species as more dynamic plants.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Koshkarova, V.L.; Karpenko, L.V.; Orlova, L.A.
The reserves and forms of carbon compounds in bog ecosystems of Russia
[Text] / T. T. Efremova, S. P. Efremov, N. V. Melent'eva // Eurasian Soil Sci. - 1997. - Vol. 30, Is. 12. - P1318-1325. - Cited References: 44
. - 8. - ISSN 1064-2293
РУБ Soil Science
Аннотация: The reserves of carbon in peat deposits and peaty and peat bog soils of Russia comprise 44.2 Gt C of humic substances (37.3% of the total reserve of C), 44.7 Gt C (37.8%) of insoluble residue, and 21.1 Gt C (17.8%) of polysaccharides, The carbon pool of humic acids constitutes 25.0 Gt and that of fulvic acids reaches 19.1 Gt. Humic acids predominate in low-moor peat, whereas fulvic acids predominate in high-moor peat. Transitional pear deposits contain approximately equal amounts of fulvic and humic acids. About 89-91% of the carbon of humic substances in different types of peat is represented by heterogeneous complexes of the first and third fractions.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Akademgorodok 660036, Krasnoyarsk, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Melent'eva, N.V.
Аннотация: The reserves of carbon in peat deposits and peaty and peat bog soils of Russia comprise 44.2 Gt C of humic substances (37.3% of the total reserve of C), 44.7 Gt C (37.8%) of insoluble residue, and 21.1 Gt C (17.8%) of polysaccharides, The carbon pool of humic acids constitutes 25.0 Gt and that of fulvic acids reaches 19.1 Gt. Humic acids predominate in low-moor peat, whereas fulvic acids predominate in high-moor peat. Transitional pear deposits contain approximately equal amounts of fulvic and humic acids. About 89-91% of the carbon of humic substances in different types of peat is represented by heterogeneous complexes of the first and third fractions.
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Akademgorodok 660036, Krasnoyarsk, Russia
Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Melent'eva, N.V.