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

/ 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).

WOS,
Scopus,
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

: материалы временных коллективов / A. S. Prokushkin [и др.] // Canadian Journal of Forest Research. - 2005. - Vol. 35, № : 9. - С. 2130-2140
Аннотация: Fluxes of dissolved organic carbon (DOC) in forested watersheds underlain by permafrost are likely to vary with changes in climatic regime that increase soil moisture and temperature. It was examined the effects of temporal and spatial variations in soil temperature and moisture on DOC fluxes from the forest floor contrasting north- and south-facing slopes in central Siberia.

Scopus,
WOS

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

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

: материалы временных коллективов / A. S. Prokushkin [и др.] // Climatic changes and their impact on boreal and temperate forests: Abstracts of the International conference (June 5-7, Ekaterinburg, Russia) : Ural State Forest Engineering University, 2006. - С. 78

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

Доп.точки доступа:
Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Tokaryeva, Irina Vladimirovna; Токарева, Ирина Владимировна; Prokushkin, Stanislav Grigor'yevich; Прокушкин Станислав Григорьевич; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович

: материалы временных коллективов / A. S. Prokushkin [и др.] // Symptom of environmental change in Siberian permafrost region: proceedings of the International symposium of JSPS core to core program between Hokkaido university and Martin Luther university Halle-Wittenberg in 29-30 November 2005, Sapporo, Japan. - Sapporo : Hokkaido University Press, 2006. - С. 113-121. - Библиогр. в конце ст.

УДК

502

Аннотация: Terrestrial flux of DOC to stream is contributed from different sources of different qualities and quantities differing at different hydrological phases and seasons. To trace the share of every one of these fluxes is still required for further understanding of DOC production and mobilization in the permafrost affected ecosystem.

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

Доп.точки доступа:
Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Hobara, S.; Хобара С.; Tokaryeva, Irina Vladimirovna; Prokushkin, Stanislav Grigor'yevich; Прокушкин Станислав Григорьевич; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович
Имеются экземпляры в отделах:
РСФ (05.12.2006г. (1 экз.) - Б.ц.) - свободны 1

: материалы временных коллективов / A. S. Prokushkin [и др.] // Climate change and their impact on boreal and temperate forests: Abstracts of the International Conference (June 5-7, 2006, Ekaterinburg, Russia). - 2006. - С. 78

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

Доп.точки доступа:
Prokushkin, Anatoly Stanislavovich; Прокушкин, Анатолий Станиславович; Tokareva, Irina Vladimirovna; Токарева Ирина Владимировна; Prokushkin, Staniclav Grigor'evich; Прокушкин Станислав Григорьевич; Abaimov, Anatoly Platonovich; Абаимов Анатолий Платонович
Имеются экземпляры в отделах:
РСФ (04.02.2008г. (1 экз.) - Б.ц.) - свободны 1

/ M. L. Bagard [et al.] // Geochim. Cosmochim. Acta. - 2013. - Vol. 114. - P169-187, DOI 10.1016/j.gca.2013.03.038. - Cited References: 104. - We thank T. Bullen and two anonymous reviewers for their thorough and constructive reviews and A. Jacobson for editorial handling. S. Gangloff is thanked for her assistance with Ca isotope chemistry and T. Perrone for his help in measuring Sr isotopes. This work was supported by the French INSU-CNRS program "EC2CO-Cytrix", and CNRS program "GDRI CAR-WET-SIB, ANR "Arctic Metals", programs of presidium UroRAS and RAS. It was also supported by the funding from the Region Alsace, France, and the CPER 2003-2013 "REALISE". MLB benefited the funding of a Ph.D. scholarship from the French Ministry of National Education and Research. This is an EOST-LHyGeS contribution. . - 19. - ISSN 0016-7037РУБ Geochemistry & Geophysics

Аннотация: Stable Ca and radiogenic Sr isotope compositions were measured in different compartments (stream water, soil solutions, rocks, soils and soil leachates and vegetation) of a small permafrost-dominated watershed in the Central Siberian Plateau. The Sr and Ca in the area are supplied by basalt weathering and atmospheric depositions, which significantly impact the Sr isotopic compositions. Only vegetation significantly fractionates the calcium isotopes within the watershed. These fractionations occur during Ca uptake by roots and along the transpiration stream within the larch trees and are hypothesised to be the result of chromatographic processes and Ca oxalate crystallisations during Ca circulation or storage within plant organs. Biomass degradation significantly influences the Ca isotopic compositions of soil solutions and soil leachates via the release of light Ca, and organic and organo-mineral colloids are thought to affect the Ca isotopic compositions of soil solutions by preferential scavenging of Ca-40. The imprint of organic matter degradation on the delta Ca-44/40 of soil solutions is much more significant for the warmer south-facing slope of the watershed than for the shallow and cold soil active layer of the north-facing slope. As a result, the available stock of biomass and the decomposition rates appear to be critical parameters that regulate the impact of vegetation on the soil-water system in permafrost areas. Finally, the obtained delta Ca-44/40 patterns contrast with those described for permafrost-free environments with a much lower delta Ca-44/40 fractionation factor between soils and plants, suggesting specific features of organic matter decomposition in permafrost environments. The biologically induced Ca isotopic fractionation observed at the soil profile scale is not pronounced at the scale of the streams and large rivers in which the delta Ca-44/40 signature may be controlled by the heterogeneity of lithological sources. (C) 2013 Elsevier Ltd. All rights reserved.

Полный текст,
WOS,
Scopus

Держатели документа:
[Bagard, Marie-Laure
Schmitt, Anne-Desiree
Chabaux, Francois
Stille, Peter] Univ Strasbourg, F-67084 Strasbourg, France
[Bagard, Marie-Laure
Schmitt, Anne-Desiree
Chabaux, Francois
Stille, Peter] CNRS, EOST, LHyGeS, F-67084 Strasbourg, France
[Schmitt, Anne-Desiree] Univ Franche Comte, CNRS, UMR 6249, F-25030 Besancon, France
[Pokrovsky, Oleg S.
Viers, Jerome] Univ Toulouse 3, CNRS, UMR 5563, Geosci & Environm Toulouse, F-31400 Toulouse, France
[Pokrovsky, Oleg S.] Russian Acad Sci, Inst Ecol Problems North, Arkhangelsk, Russia
[Labolle, Francois] Univ Strasbourg, Inst Zool & Biol Gen, F-67000 Strasbourg, France
[Prokushkin, Anatoly S.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28

Доп.точки доступа:
Bagard, M.L.; Schmitt, A.D.; Chabaux, F...; Pokrovsky, O.S.; Viers, J...; Stille, P...; Labolle, F...; Prokushkin, A.S.

[Text] / M. L. Bagard [et al.] // Geochim. Cosmochim. Acta. - 2011. - Vol. 75, Is. 12. - P3335-3357, DOI 10.1016/j.gca.2011.03.024. - Cited References: 80. - This work benefited from fruitful discussions with S. Derenne, J. Templier, and T. Weber and from thorough reviews by S. Gislason, Ed Tipper and an anonymous reviewer. We also thank the associate Editor S. Hemming. B. Kieffel, Th. Perronne and E. Pelt are acknowledged for their help in measuring U and Sr isotope ratios. This work was financially supported by the French INSU-CNRS program "EC2CO-Cytrix", and CNRS program "GDRI Car-Wet-Sib". It was also supported by the funding from the Region Alsace, France, and the CPER 2003-2013 "REALISE". MLB benefited the funding of a Ph.D. scholarship from the French Ministry of National Education and Research. This is an EOST-LHyGeS contribution. . - 23. - ISSN 0016-7037РУБ Geochemistry & Geophysics

Аннотация: In order to constrain the origin and fluxes of elements carried by rivers of high latitude permafrost-dominated areas, major and trace element concentrations as well as Sr and U isotopic ratios were analyzed in the dissolved load of two Siberian rivers (Kochechum and Nizhnyaya Tunguska) regularly sampled over two hydrological cycles (2005-2007). Large water volumes of both rivers were also collected in spring 2008 in order to perform size separation through dialysis experiments. This study was completed by spatial sampling of the Kochechum watershed carried out during summer and by a detailed analysis of the main hydrological compartments of a small watershed. From element concentration variations along the hydrological cycle, different periods can be marked out, matching hydrological periods. During winter baseflow period (October to May) there is a concentration increase for major soluble cations and anions by an order of magnitude. The spring flood period (end of May-beginning of June) is marked by a sharp concentration decrease for soluble elements whereas dissolved organic carbon and insoluble element concentrations strongly increase. When the spring flood discharge occurs, the significant increase of aluminum and iron concentrations is related to the presence of organo-mineral colloids that mobilize insoluble elements. The study of colloidal REE reveals the occurrence of two colloid sources successively involved over time: spring colloids mainly originate from the uppermost organic-rich part of soils whereas summer colloids rather come from the deep mineral horizons. Furthermore, U and Sr isotopic ratios together with soluble cation budgets in the Kochechum river impose for soluble elements the existence of three distinct fluxes over the year: (a) at the spring flood a surface flux coming from the leaching of shallow organic soil levels and containing a significant colloidal component (b) a subsurface flux predominant during summer and fall mainly controlled by water-rock interactions within mineral soils and (c) a deep groundwater flux predominant during winter which enters large rivers through unfrozen permafrost-paths. Detailed study of the Kochechum watershed suggests that the contribution of this deep flux strongly depends on the depth and continuous nature of the permafrost. (C) 2011 Elsevier Ltd. All rights reserved.

Полный текст,
WOS,
Scopus

Держатели документа:
[Bagard, Marie-Laure
Chabaux, Francois
Stille, Peter
Rihs, Sophie] Univ Strasbourg, F-67084 Strasbourg, France
[Bagard, Marie-Laure
Chabaux, Francois
Stille, Peter
Rihs, Sophie] CNRS, EOST, LHyGeS, F-67084 Strasbourg, France
[Pokrovsky, Oleg S.
Viers, Jerome
Dupre, Bernard] Observ Midi Pyrenees, UMR 5563, CNRS, LMTG, Paris, France
[Prokushkin, Anatoly S.] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk, Russia
[Schmitt, Anne-Desiree] Univ Franche Comte, CNRS, UMR 6249, F-25030 Besancon, France

Доп.точки доступа:
Bagard, M.L.; Chabaux, F...; Pokrovsky, O.S.; Viers, J...; Prokushkin, A.S.; Stille, P...; Rihs, S...; Schmitt, A.D.; Dupre, B...

[Text] / A. S. Prokushkin [et al.] // Glob. Biogeochem. Cycle. - 2007. - Vol. 21, Is. 4. - Ст. GB4003, DOI 10.1029/2007GB002938. - Cited References: 39 . - 12. - ISSN 0886-6236РУБ Environmental Sciences + Geosciences, Multidisciplinary + Meteorology & Atmospheric Sciences

Аннотация: Terrestrial and aquatic dissolved organic matter (DOM) was characterized to trace the likely processes of DOM formation and stream export in a permafrost-dominated watershed in central Siberia. Stream samples were collected in spring (May-June 2003) and summer (July-August 2003) at both low flow and stormflow. Dissolved organic matter was analyzed by pyrolysis/gas chromatography/mass spectrometry, and identified pyrolysis products were simultaneously analyzed for compound-specific isotope ratios by isotope ratio mass spectrometry. Pyrograms of terrestrial and stream DOM contained a similar series of pyrolysis products, suggesting a terrestrial origin for DOM in the small stream draining our study catchment. However, despite the overall similarity of chemical composition of stream DOM at different seasons, we also observed distinct differences in isotopic fingerprint between seasons and hydrologic phases ( stormflow versus low flow). This variation appears to be due to the changing origin of stream DOM from different soil layers and the catchment sources following permafrost thawing during the frost-free period. In general, chemical and isotopic composition of stream DOM was similar to DOM produced in soils of colder north facing slopes ( P 0.01) with a shallow active layer. South facing slopes with deeper active layers produce little DOM that enters the stream, suggesting that DOM produced in the active layer is retained and stabilized in underlying, unfrozen mineral soils. Climate change that results in additional seasonal thawing of permafrost-dominated landscapes will decrease the amount of DOM exported to riverine systems and change its chemical composition.

WOS

Держатели документа:
Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
Max Planck Inst Biogeochem, D-07745 Jena, Germany
Univ New Hampshire, Durham, NH 03824 USA

Доп.точки доступа:
Prokushkin, A.S.; Gleixner, G...; McDowell, W.H.; Ruehlow, S...; Schulze, E.D.

[Text] / L. M. Parham [et al.] // Biogeochemistry. - 2013. - Vol. 116, Is. 01.03.2014. - P55-68, DOI 10.1007/s10533-013-9922-5. - Cited References: 33. - This work was supported by joint US-Russia program between the RFBR and CRDF through Grants 10-05-92513 and RUG1-2980-KR-10, ANR, GDRI "CAR WET SIB", Grants RFBR-CNRS 08-04-92495 and BIO-GEO-CLIM of MinObrNauki and BIO-GEO-CLIM of Russian Ministry of Science and Education (14.B25.31.0001). . - 14. - ISSN 0168-2563РУБ Environmental Sciences + Geosciences, Multidisciplinary

Аннотация: Stream chemistry in permafrost regions is regulated by a variety of drivers that affect hydrologic flowpaths and watershed carbon and nutrient dynamics. Here we examine the extent to which seasonal dynamics of soil active layer thickness and wildfires regulate solute concentration in streams of the continuous permafrost region of the Central Siberian Plateau. Samples were collected from 2006 to 2012 during the frost-free season (May-September) from sixteen watersheds with fire histories ranging from 3 to 120 years. The influence of permafrost was evident through significantly higher dissolved organic carbon (DOC) concentrations in the spring, when only the organic soil horizon was accessible to runoff. As the active layer deepened through the growing season, water was routed deeper through the underlying mineral horizon where DOC underwent adsorption and concentrations decreased. In contrast, mean concentrations of major cations (Ca2+ > Na+ > Mg2+ > K+) were significantly higher in the summer, when contact with mineral horizons in the active zone provided a source of cations. Wildfire caused significantly lower concentrations of DOC in more recently burned watersheds, due to removal of a source of DOC through combustion of the organic layer. An opposite trend was observed for dissolved inorganic carbon and major cations in more recently burned watersheds. There was also indication of talik presence in three of the larger watersheds evidenced by Cl- concentrations that were ten times higher than those of other watersheds. Because climate change affects both fire recurrence intervals as well as rates of permafrost degradation, delineating their combined effects on solute concentration allows forecasting of the evolution of biogeochemical cycles in this region in the future.

WOS,
Полный текст,
Scopus,
Scopus

Держатели документа:
[Parham, Lucy M.
McDowell, William H.] Univ New Hampshire, Dept Nat Resources & Environm, Coll Life Sci & Agr, Durham, NH 03824 USA
[Prokushkin, Anatoly S.
Titov, Sergey V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Pokrovsky, Oleg. S.] Univ Toulouse, CNRS IRD OMP, Geosci Environm Toulouse, F-31400 Toulouse, France
[Grekova, Ekaterina] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Shirokova, Liudmila S.] UroRAS, Inst Ecol Problems North, Arkhangelsk, Russia

Доп.точки доступа:
Parham, L.M.; Prokushkin, A.S.; Pokrovsky, O.S.; Titov, S.V.; Grekova, E...; Shirokova, L.S.; McDowell, W.H.; RFBR; CRDF [10-05-92513, RUG1-2980-KR-10]; ANR; GDRI "CAR WET SIB"; MinObrNauki [RFBR-CNRS 08-04-92495, BIO-GEO-CLIM]; BIO-GEO-CLIM of Russian Ministry of Science and Education [14.B25.31.0001]

/ R. M.W. Amon [et al.] // Geochimica et Cosmochimica Acta. - 2012. - Vol. 94. - P217-237, DOI 10.1016/j.gca.2012.07.015 . - ISSN 0016-7037
Аннотация: The biomarker composition of dissolved organic carbon (DOC) of the six largest Arctic rivers was studied between 2003 and 2007 as part of the PARTNERS Project. Samples were collected over seasonal cycles relatively close to the river mouths. Here we report the lignin phenol and p-hydroxybenzene composition of Arctic river DOC in order to identify major sources of carbon. Arctic river DOC represents an important carbon conduit linking the large pools of organic carbon in the Arctic/Subarctic watersheds to the Arctic Ocean. Most of the annual lignin discharge (>75%) occurs during the two month of spring freshet with extremely high lignin concentrations and a lignin phenol composition indicative of fresh vegetation from boreal forests. The three large Siberian rivers, Lena, Yenisei, and Ob, which also have the highest proportion of forests within their watersheds, contribute about 90% of the total lignin discharge to the Arctic Ocean. The composition of river DOC is also characterized by elevated levels of p-hydroxybenzenes, particularly during the low flow season, which indicates a larger contribution from mosses and peat bogs. The lignin composition was strongly related to the average 14C-age of DOC supporting the abundance of young, boreal-vegetation-derived leachates during spring flood, and older, soil-, peat-, and wetland-derived DOC during groundwater dominated low flow conditions, particularly in the Ob and Yukon Rivers. We observed significant differences in DOC concentration and composition between the rivers over the seasonal cycles with the Mackenzie River being the most unique, the Lena River being similar to the Yenisei, and the Yukon being most similar to the Ob. The observed relationship between the lignin phenol composition and watershed characteristics suggests that DOC discharge from these rivers could increase in a warmer climate under otherwise undisturbed conditions. В© 2012 Elsevier Ltd.

Scopus,
Полный текст

Держатели документа:
Department of Marine Sciences, Texas A and M University at Galveston, Galveston, United States
Department of Oceanography, Texas A and M University, College Station, United States
V.N. Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, Russian Federation
Institut fur Bodenkunde, Leibniz-Universitat Hannover, Hannover, Germany
Leibniz Institute of Marine Sciences, University of Kiel (IFM-GEOMAR), Kiel, Germany
Department of Marine Ecology, National Environmental Research Institute, University of Aarhus, Roskilde, Denmark
Yale School of Forestry and Environmental Studies, Yale University, CT, United States
The Woods Hole Research Center, Woods Hole, MA, United States
Marine Science Institute, University of Texas at Austin, Port Aransas, TX, United States
Marine Biological Laboratory, Woods Hole, MA, United States
South Russia Centre for Preparation and Implementation of International Projects, Rostov-on-Don, Russian Federation

Доп.точки доступа:
Amon, R.M.W.; Rinehart, A.J.; Duan, S.; Louchouarn, P.; Prokushkin, A.; Guggenberger, G.; Bauch, D.; Stedmon, C.; Raymond, P.A.; Holmes, R.M.; McClelland, J.W.; Peterson, B.J.; Walker, S.A.; Zhulidov, A.V.

/ A. Onuchin [et al.] // IAHS-AISH Publication. - 2009. - Vol. 331: Symposium JS.4 at the Joint Convention of the International Association of Hydrological Sciences, IAHS and the International Association of Hydrogeologists, IAH (6 September 2009 through 12 September 2009, Hyderabad) Conference code: 83573. - P163-170 . -
Аннотация: River flow is vitally important to many human activities. River flow is influenced by climatic and land-cover changes. Land-use practices have a significant effect on water flow and quality. Land use can change surface runoff, which in turn can be used as an environmental indicator of a land use level of sustamability. Along with the regional climate, hydrological processes occurring in river basins in Siberia and mountainous Kyrgyzia are controlled by forest logging and afforestation. The method used to analyse annual river flow genesis to date allowed the onset of, and assessment of, the level of human activities in the watersheds. Moreover, river flow genesis can be used in land use decision-making. River flow reflects all watershed changes, which can have opposite effects, thus compensating for each other. This study confirmed that river flow changes in time, thus reflecting land cover changes in watersheds. Copyright В© 2009 IAHS Press.

Scopus

Держатели документа:
V. N. Sukachev Institute of Forest Siberian Branch, Russian Academy of Sciences, 660036, Academgorodok, Krasnoyarsk, Russian Federation
P. A. Gan Institute of Forest and Nut Plantation, Kyrgyzian Academy of Sciences, Kargachevaya rosha, 15, 720015, Bishkek, Kyrgyzstan

Доп.точки доступа:
Onuchin, A.; Burenina, T.; Gaparov, K.; Ziryukina, N.

/ A. S. Prokushkin, G. Guggenberger // Russian Meteorology and Hydrology. - 2007. - Vol. 32, Is. 6. - P404-412, DOI 10.3103/S1068373907060088 . - ISSN 1068-3739
Аннотация: With reference to 2001-2005, the fluxes of dissolved organic matter (DOM) are analyzed in a water stream of the northern taiga subzone of continuous permafrost. Dynamics of hydroclimatic parameters is shown during a frost-free period. It is found that, in spite of a potential decrease in the DOM concentrations with the increased thickness of a seasonally thawed layer, one observes their direct dependence on the precipitation amount and part that enters the water stream. Seasonal variations in the DOM qualitative composition are determined. The basic DOM part exported from the watershed is observed during the regimes of a maximum water content (spring flooding and floods). В© Allerton Press, Inc. 2007.

Scopus,
Полный текст

Держатели документа:
Sukachev Institute of Forest, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute fur Bodenkunde und Planzenernahrung, Martin-Luther-Universitat Halle-Wittenberg, Weidenplan 14, 06108 Halle, Saale, Germany

Доп.точки доступа:
Prokushkin, A.S.; Guggenberger, G.

/ V. Mavromatis [et al.] // Geochim. Cosmochim. Acta. - 2014. - Vol. 147. - P76-89, DOI 10.1016/j.gca.2014.10.009 . - ISSN 0016-7037
Аннотация: To unravel the Mg isotope fractionation pathways within the continuous permafrost zone in the larch deciduous forest of Central Siberia, we measured the Mg isotopic composition of two large Siberian rivers (Nizhnaya Tunguska and Kochechum, which flow into the Yenisey), a small forested stream, and the major fluid and solid sources of Mg in the watershed: atmospheric precipitates, surface suprapermafrost flow, interstitial soil solutions, plant biomass, litter and mineral soils. The obtained results indicate a significant seasonal variation in riverine water Mg isotope signatures. During the winter baseflow, the Mg isotope composition of large rivers is significantly lighter than the source basaltic rocks and the atmospheric depositions. These differences support the presence of fluids enriched in lighter Mg isotopes, such as those affected by the mineral precipitation of secondary silicates or fluids that dissolve sedimentary carbonate rocks. During the spring flood and in the summer and fall seasons, the river fluid ?26Mg values increased by 0.2-0.3‰ and approached the Mg isotope composition of the ground vegetation (dwarf shrubs, mosses) and the soil organic horizon. Overall, the riverine waters were 0.3-0.7‰ lighter than the unaltered bedrock and the deep minerals soil horizons.The Mg isotopic compositions of Larix gmelinii organs (i.e., stem wood, roots and needles) exhibit a low variability. However, an enrichment of 0.2-0.3‰ in the ?26Mg of larch needles in the course of the growing season, from June to September can be observed. This enrichment most likely demonstrates uptake of isotopically heavier Mg by the plant in addition to the progressive thawing of the mineral soil (deepening of the active layer of the soil). Overall, the Mg isotope approach indicates the important contribution of vegetation (larch needles, mosses and dwarf shrubs) to the riverine Mg isotope signature and helps to reveal the contribution of isotopically light carbonate rocks in the large rivers of the Central Siberian Plateau.

Scopus,
WOS

Держатели документа:
Geosciences Environnement Toulouse (GET), CNRS, UMR 5563, Observatoire Midi-Pyrenees, 14 Av. E. BelinToulouse, France
V.N. Sukachev Institute of Forest, SB RAS, Akademgorodok 50/28Krasnoyarsk, Russian Federation
BIO-GEO-CLIM Laboratory, Tomsk State UniversityTomsk, Russian Federation

Доп.точки доступа:
Mavromatis, V.; Prokushkin, A.S.; Pokrovsky, O.S.; Viers, J.; Korets, M.A.

[Text] / J. Viers [et al.] // Geochem. Trans. - 2015. - Vol. 16. - Ст. 3, DOI 10.1186/s12932-015-0018-0. - Cited References:81. - This work was supported by the GDRI Car-Wet-Sib, the ANR CESA "Artic Metals" (France), RSF 14-24-0013, and the grant "BIO-GEO-CLIM" of the Russian Ministry of Education and Research and Tomsk State University (No 14.B25.31.0001). . - ISSN 1467-4866РУБ Geochemistry & Geophysics

Аннотация: Stable Zn isotopes fractionation was studied in main biogeochemical compartments of a pristine larch forest of Central Siberia developed over continuous permafrost basalt rocks. Two north-and south-oriented watershed slopes having distinctly different vegetation biomass and active layer depth were used as natural proxy for predicting possible future climate changes occurring in this region. In addition, peat bog zone exhibiting totally different vegetation, hydrology and soil temperature regime has been studied. The isotopic composition of soil profile from Central Siberia is rather constant with a delta Zn-66 value around 0.2 parts per thousand close to the value of various basalts. Zn isotopic composition in mosses (Sphagnum fuscum and Pleurozium schreberi) exhibits differences between surface layers presenting values from 0.14 to 0.2 parts per thousand and bottom layers presenting significantly higher values (0.5 - 0.7 parts per thousand) than the underlain mineral surface. The humification of both dead moss and larch needles leads to retain the fraction where Zn bound most strongly thus releasing the lighter isotopes in solution and preserving the heavy isotopes in the humification products, in general accord with previous experimental and modeling works [GCA 75:7632-7643, 2011]. The larch (Larix gmelinii) from North and South-facing slopes is enriched in heavy isotopes compared to soil reservoir while larch from Sphagnum peatbog is enriched in light isotopes. This difference may result from stronger complexation of Zn by organic ligands and humification products in the peat bog compared to mineral surfaces in North- and South-facing slope. During the course of the growing period, Zn followed the behavior of macronutrients with a decrease of concentration from June to September. During this period, an enrichment of larch needles by heavier Zn isotopes is observed in the various habitats. We suggest that the increase of the depth of rooting zone, and the decrease of DOC and Zn concentration in soil solution from the root uptake zone with progressively thawing soil could provoke heavy isotopes to become more available for the larch roots at the end of the vegetative season compared to the beginning of the season, because the decrease of DOC will facilitate the uptake of heavy isotope as it will be less retained in strong organic complexes.

WOS

Держатели документа:
Univ Toulouse 3, CNRS, IRD, GET OMP,UMR CNRS 5563, F-31400 Toulouse, France.
VN Sukachev Inst Forestry SB RAS, Krasnoyarsk 660036, Russia.
Tomsk State Univ, BIO GEO CLIM Lab, Tomsk 634050, Russia.
UB RAS, Inst Ecol Problems North, Lab Freshwater & Marine Ecosyst, Arkhangelsk, Russia.
Univ Strasbourg, CNRS, LHYGES EOST, F-67084 Strasbourg, France.

Доп.точки доступа:
Viers, Jerome; Prokushkin, Anatoly S.; Pokrovsky, Oleg S.; Kirdyanov, Alexander V.; Zouiten, Cyril; Chmeleff, Jerome; Meheut, Merlin; Chabaux, Francois; Oliva, Priscia; Dupre, Bernard; GDRI Car-Wet-Sib; ANR CESA "Artic Metals" (France); RSF [14-24-0013]; grant "BIO-GEO-CLIM" of the Russian Ministry of Education and Research; Tomsk State University [14.B25.31.0001]

[Text] / L. A. Diemer [et al.] // Freshw. Sci. - 2015. - Vol. 34, Is. 4. - P1443-1456, DOI 10.1086/683481. - Cited References:63. - We thank the Russian and American researchers and volunteers and the University of New Hampshire (UNH) Water Quality Analysis Laboratory technicians for their assistance in the field and laboratory. Special thanks to Alison Appling, Wilfred Wollheim, Jody Potter, and 2 anonymous referees for their suggestions on the manuscript. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. 147640. We also acknowledge the research support of the Russian Fund for Basic Research No. 14-05-00420 and the Russian Ministry of Education No. 14.B25.31.0031. This research was taken from a thesis submitted to the Graduate School at the University of New Hampshire as part of the requirements for completion of a MS degree (Diemer 2014). . - ISSN 2161-9549. - ISSN 2161-9565РУБ Ecology + Marine & Freshwater Biology

Аннотация: Fire can transform the boreal forest landscape, thereby leading to potential changes in the loading of organic matter and nutrients to receiving streams and in the retention or transformation of these inputs within the drainage network. We used the Tracer Additions for Spiraling Curve Characterization (TASCC) method to conduct 17 nutrient-addition experiments (9 single additions of NO3- and 8 combined additions of NH4+ and PO43-) in 5 boreal headwater streams underlain by continuous permafrost and draining watersheds with a range of burn histories (4->100 y since last burn) in the Nizhnyaya Tunguska River watershed in Central Siberia. Hydrology, ambient nutrient concentration, and the ratio of dissolved organic C (DOC) to nutrients drove rates of nutrient uptake in the streams. Nutrients were taken up with greater efficiency and magnitude under conditions with high flow and reduced diffusive boundary layer (DBL), regardless of watershed burn history. Ambient molar ratio of DOC: PO43- explained some variation in ambient uptake velocity (upsilon(f)) for NH4+ and PO43-. We also observed tight coupling between ambient rates of NH4+ and PO43- uptake across the watershed burn-history gradient. These data suggest that fire-driven changes in stream chemistry may alter N and P retention and subsequent export of materials to downstream receiving waters. Climate change is likely to enhance the frequency and intensity of boreal forest fires and alter the extent of permafrost. Therefore, understanding the interactions among C, N, and P in these Arctic systems has important implications for global biogeochemical cycling.

WOS,
Scopus

Держатели документа:
Univ New Hampshire, Dept Nat Resources, Durham, NH 03824 USA.
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia.

Доп.точки доступа:
Diemer, Laura A.; McDowell, William H.; Wymore, Adam S.; Prokushkin, Anatoly S.; National Science Foundation Graduate Research Fellowship Program [147640]; Russian Fund for Basic Research [14-05-00420]; Russian Ministry of Education [14.B25.31.0031]

/ V. I. Kharuk [et al.] // For. Ecol. Manage. - 2017. - Vol. 384. - P191-199, DOI 10.1016/j.foreco.2016.10.050 . - ISSN 0378-1127
Аннотация: Siberian pine (Pinus sibirica) and fir (Abies sibirica) (so called “dark needle conifers”, DNC) showed decreased radial growth increment within the Lake Baikal watershed since the 1980s with increasing mortality recorded since the year 2000. Tree ring width was strongly correlated with vapor pressure deficit, aridity and root zone moisture. Water stress from droughts made trees more susceptible to insect attacks causing mortality in about 10% of DNC stands within the Lake Baikal watershed. Within Siberia DNC mortality increased in the southern part of the DNC range. Biogeographically, tree mortality was located within the DNC – forest-steppes transition. Tree mortality was significantly correlated with drought and soil moisture anomalies. Within the interior of the DNC range mortality occurred within relief features with high water stress risk (i.e., steep convex south facing slopes with shallow well-drained soils). In general, DNC mortality in Siberia was induced by increased aridity and severe drought (inciting factors) in synergy with biotic attacks (contributing factor). In future climate scenarios with predicted increase in aridity DNC could be eliminated from the southern part of its current range and will be replaced by drought-resistant conifers and broadleaf species (e.g., Larix sibirica, Pinus silvestris, and Betula pubescence). © 2016

Scopus,
Смотреть статью,
WOS

Держатели документа:
Sukachev Institute of Forest, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
NASA's Goddard Space Flight Center, Greenbelt, MD, United States
Russian Center of Forest Protection, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kharuk, V. I.; Im, S. T.; Petrov, I. A.; Golyukov, A. S.; Ranson, K. J.; Yagunov, M. N.

/ L. Orgogozo [et al.] // Permafrost Periglacial Process. - 2019. - Vol. 30, Is. 2. - P75-89, DOI 10.1002/ppp.1995. - Cited References:89. - CALMIP supercomputing center, Grant/Award Number: p12166; Campus France, Grant/Award Number: Kolmogorov No 14.587.21.0036; Russian Science Foundation, Grant/Award Number: 18-17-00237 . - ISSN 1045-6740. - ISSN 1099-1530РУБ Geography, Physical + Geology

Аннотация: To quantify the impact of evapotranspiration phenomena on active layer dynamics in a permafrost-dominated forested watershed in Central Siberia, we performed a numerical cryohydrological study of water and energy transfer using a new open source cryohydrogeology simulator, with two innovative features: spatially distributed, mechanistic handling of evapotranspiration and inclusion of a numerical tool in a high- performance computing toolbox for numerical simulation of fluid dynamics, OpenFOAM. In this region, the heterogeneity of solar exposure leads to strong contrasts in vegetation cover, which constitutes the main source of variability in hydrological conditions at the landscape scale. The uncalibrated numerical results reproduce reasonably well the measured soil temperature profiles and the dynamics of infiltrated waters revealed by previous biogeochemical studies. The impacts of thermo-hydrological processes on water fluxes from the soils to the stream are discussed through a comparison between numerical results and field data. The impact of evapotranspiration on water fluxes is studied numerically, and highlights a strong sensitivity to variability in rooting depth and corresponding evapotranspiration at slopes of different aspect in the catchment.

WOS,
Смотреть статью,
Scopus

Держатели документа:
Univ Toulouse, Observ Midi Pyrenees, GET, UMR CNRS UR IRD UPS 5563 234, 14 Ave Edouard Belin, F-31400 Toulouse, France.
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia.
Tomsk State Univ, BIO GEO CLIM Lab, Tomsk, Russia.
Univ Paris Saclay, Lab Sci Climat & Environm, IPSL LSCE, UMR CNRS CEA UVSQ 8212, Gif Sur Yvette, France.
Univ Toulouse, INPT, UPS, IMFT, Toulouse, France.
CNRS, IMFT, Toulouse, France.

Доп.точки доступа:
Orgogozo, Laurent; Prokushkin, Anatoly S.; Pokrovsky, Oleg S.; Grenier, Christophe; Quintard, Michel; Viers, Jerome; Audry, Stephane; CALMIP supercomputing center [p12166]; Campus France [14.587.21.0036]; Russian Science Foundation [18-17-00237]

/ A. S. Prokushkin [et al.] // IOP Conference Series: Earth and Environmental Science : Institute of Physics Publishing, 2019. - Vol. 232: 5th International Summer School for Students and Young Scientists on Natural and Human Environment of Arctic and Alpine Areas: Relief, Soils, Permafrost, Glaciers, Biota Life Style of Native Ethnic Groups in a Rapidly Changing Climate (7 July 2018 through 21 July 2018, ) Conference code: 145575, Is. 1, DOI 10.1088/1755-1315/232/1/012010 . -
Аннотация: The study is focused on carbon and nutrient behaviour in tributaries of the Yenisei River draining the Western Siberian Plain. The previous studies showed that dissolved organic carbon (DOC) concentrations in riverine systems are influenced by wetland cover within a watershed and modulating effect of permafrost. Our data point out more complex interactions within the south-north transect of the Yenisei River basin including a partitioning of sources at different seasons and in-river metabolic processing of DOC involving utilization of nutrients and production of DIC. On the other hand, DOC concentration in rivers is driven by available stock of labile carbon and, thus, is a function of total organic matter stored in soils. Terrigenic C and nutrient fluxes to rivers are enhanced in colder environments of northern Western Siberia, contradicting the earlier observations and respective future projections of permafrost degradation effects on riverine C release. © 2019 Published under licence by IOP Publishing Ltd.

Scopus,
Смотреть статью

Держатели документа:
VN Sukachev Institute of Forest SB RAS, Akademgorodok 50/28, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodny 79, Krasnoyarsk, 660041, Russian Federation
N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Science, Arkhangelsk, Russian Federation
Tomsk State University, Tomsk, Russian Federation
Geoscience and Environment Toulouse, UMR 5563 CNRS, University of Toulouse, Toulouse, France

Доп.точки доступа:
Prokushkin, A. S.; Korets, M. A.; Panov, A. V.; Prokushkina, M. P.; Tokareva, I. V.; Vorobyev, S. N.; Pokrovsky, O. S.

/ V. Mavromatis, A. S. Prokushkin, M. A. Korets [et al.] // Chem. Geol. - 2020. - Vol. 540. - Ст. 119547, DOI 10.1016/j.chemgeo.2020.119547 . - ISSN 0009-2541
Аннотация: Constraining the mechanisms controlling the riverine flux of major cations and their isotopes including that of Mg to the World Ocean is one of the challenges in Earth surface isotope geochemistry. In an attempt to identify the main factors affecting the Mg isotopic composition of large rivers including vegetation, climate and lithology of the watershed, we studied the largest, in terms of discharge, Siberian river, Yenisey, and 20 of its main tributaries, during spring flood, summer flow and winter. The working hypothesis was that the influence of bedrock composition is most pronounced in winter, when the soils are frozen and the rivers are fed by deep underground waters. Thus, we anticipated that the presence of permafrost will help to distinguish the impact of surface processes, linked to biological uptake and release, and deep soil/underground transport of Mg from mineral sources. In contrast to these expectations, no sizable differences in the Mg isotope composition of the river water (±0.1‰) for both the Yenisey tributaries and its main channel has been observed between the spring flood (May) and the winter (March) period. Those two periods are characterized by the differences of discharge and degree of lithological impact on element source in the river water. Regardless of the season, there was no straightforward control of lithology (relative abundance of carbonates, basalts, granites and sedimentary rocks) on ?26Mg in the main tributaries of the Yenisey river. Our findings suggest that the use of riverine Mg isotope signature for tracing weathering mechanisms and dominant lithological impact is not straightforward at the scale of large rivers whose watersheds present multiple lithologies, variable climatic conditions and vegetation types. © 2020 Elsevier B.V.

Scopus

Держатели документа:
Geosciences Environnement Toulouse (GET), CNRS, UMR 5563, Observatoire Midi-Pyrenees, 14 Av. E. Belin, Toulouse, 31400, France
V.N. Sukachev Institute of Forest, SB RAS, Akademgorodok 50/28, Krasnoyarsk, 660036, Russian Federation
BIO-GEO-CLIM Laboratory, Tomsk State University, Tomsk, Russian Federation
N. Laverov Federal Center for Arctic Research, IEPN, Russian Academy of Science, 23 Naber. Sev. Dviny, Arkhangelsk, Russian Federation

Доп.точки доступа:
Mavromatis, V.; Prokushkin, A. S.; Korets, M. A.; Chmeleff, J.; Mounic, S.; Pokrovsky, O. S.

/ V. Mavromatis, A. S. Prokushkin, M. A. Korets [et al.] // Chem. Geol. - 2020. - Vol. 540. - Ст. UNSP 119547, DOI 10.1016/j.chemgeo.2020.119547. - Cited References:65. - The study was supported by RFFI (RFBR) grant No 19-55-15002 and by the French national programmes INSU-LEFE and INSU-SYSTER. The editor, J. Gaillardet and four anonymous reviewers are thanked for their constructive comments on our manuscript. . - ISSN 0009-2541. - ISSN 1872-6836РУБ Geochemistry & Geophysics

Аннотация: Constraining the mechanisms controlling the riverine flux of major cations and their isotopes including that of Mg to the World Ocean is one of the challenges in Earth surface isotope geochemistry. In an attempt to identify the main factors affecting the Mg isotopic composition of large rivers including vegetation, climate and lithology of the watershed, we studied the largest, in terms of discharge, Siberian river, Yenisey, and 20 of its main tributaries, during spring flood, summer flow and winter. The working hypothesis was that the influence of bedrock composition is most pronounced in winter, when the soils are frozen and the rivers are fed by deep underground waters. Thus, we anticipated that the presence of permafrost will help to distinguish the impact of surface processes, linked to biological uptake and release, and deep soil/underground transport of Mg from mineral sources. In contrast to these expectations, no sizable differences in the Mg isotope composition of the river water (+/- 0.1%) for both the Yenisey tributaries and its main channel has been observed between the spring flood (May) and the winter (March) period. Those two periods are characterized by the differences of discharge and degree of lithological impact on element source in the river water. Regardless of the season, there was no straightforward control of lithology (relative abundance of carbonates, basalts, granites and sedimentary rocks) on delta Mg-26 in the main tributaries of the Yenisey river. Our findings suggest that the use of riverine Mg isotope signature for tracing weathering mechanisms and dominant lithological impact is not straightforward at the scale of large rivers whose watersheds present multiple lithologies, variable climatic conditions and vegetation types.

WOS

Держатели документа:
Observ Midi Pyrenees, CNRS, GET, UMR 5563, 14 Av E Belin, F-31400 Toulouse, France.
SB RAS, VN Sukachev Inst Forest, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.
Tomsk State Univ, BIO GEO CLIM Lab, Tomsk, Russia.
Russian Acad Sci, N Laverov Fed Ctr Arctic Res, IEPN, 23 Naber Sev Dviny, Arkhangelsk, Russia.

Доп.точки доступа:
Mavromatis, Vasileios; Prokushkin, Anatoly S.; Korets, Mikhail A.; Chmeleff, Jerome; Mounic, Stephanie; Pokrovsky, Oleg S.; RFFI (RFBR) [19-55-15002]; French national programmes INSU-LEFE; INSU-SYSTER