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

[Text] / A. S. Prokushkin [et al.] // Russ. J. Ecol. - 2008. - Vol. 39, Is. 3. - P151-159, DOI 10.1134/S1067413608030016. - Cited References: 33 . - 9. - ISSN 1067-4136РУБ Ecology

Аннотация: Fluxes of dissolved organic matter (DOM) in larch biogeocenoses and its export from the drainage basin have been studied in the zone of continuous permafrost. A comparative assessment of DOM input into the soil has been made on slopes of northern and southern exposures (as variants reflecting the current state and warming). The dynamics of DOM export in a creek depending on the increasing depth of the active soil horizon in the drainage area have been revealed. It is concluded that an increase in the depth of the seasonally thawing layer induced by global warming will not have any significant effect on the amount of annual DOM export. Reduction of DOM export may be expected upon a decrease in litter stocks under the effect of their mineralization and forest fires.

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Держатели документа:
[Guggenberger, H.] Univ Halle Wittenberg, D-06108 Halle, Saale, Germany
[Prokushkin, A. S.
Tokareva, I. V.
Prokushkin, S. G.
Abaimov, A. P.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

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Prokushkin, A.S.; Tokareva, I.V.; Prokushkin, S.G.; Abaimov, A.P.; Абаимов Анатолий Платонович; Guggenberger, H...

[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.

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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.

/ 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.

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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.

/ F. Pourpoint [et al.] // Chem. Geol. - 2017. - Vol. 452. - P1-8, DOI 10.1016/j.chemgeo.2017.02.004. - Cited References:60. - The Lille group is grateful for funding by the Region Nord/Pas-de-Calais, France, Europe (FEDER), CNRS, Ministere de l'Enseignement Superieur et de la Recherche, Institut Chevreul (FR 2638), CPER, ENSCL, and contract ANR-14-CE07-0009-01. Bruker Company and Fabien Aussenac are warmly acknowledged for providing access to DNP-NMR spectrometer. Guillaume Laurent is also acknowledged for fruitful discussion. Financial support from the IR-RMN-THC FR-3050 CNRS for conducting the research is gratefully acknowledged. . - ISSN 0009-2541. - ISSN 1878-5999РУБ Geochemistry & Geophysics

Аннотация: In a Siberian river, the concentrations of chemical species vary with the hydrological regime. Dissolved Organic Matter (DOM) and aluminum ions show a parallel trend in the course of the hydrological year. However, the speciation of aluminum in this natural environment remains an open question. We propose here a combination of spectroscopic techniques to investigate the proximity between the aluminum atoms and DOM. First, one-dimensional (1D) solid-state Nuclear Magnetic Resonance (NMR), Electron Paramagnetic Resonance (EPR) and 1D and 2D solution NMR spectra were acquired, providing a clear overview of the DOM composition. Second, the sensitivity enhancement yielded by Dynamic Nuclear Polarization enabled the NMR detection of proximities between the Al-27 and C-13 nuclei. Hence, we show that 8.3 +/- 1.3% of the carboxylate groups observed by NMR are connected to the Al3+ ions in the DOM sample. We here demonstrate for the first time how advanced solid-state NMR methods can provide key information about the localization of aluminum in such complex natural materials. (C) 2017 Elsevier B.V. All rights reserved.

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Держатели документа:
Univ Lille, CNRS, ENSCL, UCCS,UMR 8181, F-59000 Lille, France.
Univ Paris 06, CNRS, METIS Milieux Environnementaux Transferts & Inte, UMR 7619, F-75252 Paris 05, France.
Univ Lille, CNRS, LASIR Lab Spect Infrarouge & Raman, UMR 8516, F-59000 Lille, France.
Univ Lille, CNRS, UGSF, UMR 8576, F-59000 Lille, France.
Univ Strasbourg, CNRS, LHyGeS, UMR 7517, F-67084 Strasbourg, France.
CNRS, GET, Observ Midi Pyrenees, UMR 5563, Toulouse, France.
V N Sukachev Inst Forest SB RAS, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Pourpoint, Frederique; Templier, Joelle; Anquetil, Christelle; Vezin, Herve; Trebosc, Julien; Trivelli, Xavier; Chabaux, Francois; Pokrovsky, Oleg S.; Prokushkin, Anatoly S.; Amoureux, Jean-Paul; Lafon, Olivier; Derenne, Sylvie; Region Nord/Pas-de-Calais, France, Europe (FEDER); Ministere de l'Enseignement Superieur et de la Recherche; Institut Chevreul [FR 2638]; CPER; ENSCL [ANR-14-CE07-0009-01]; IR-RMN-THC FR-3050 CNRS

/ B. M. Rodriguez-Cardona, A. A. Coble, A. S. Wymore [et al.] // Sci. Rep. - 2020. - Vol. 10, Is. 1. - Ст. 8722, DOI 10.1038/s41598-020-65520-0 . - ISSN 2045-2322
Аннотация: The Central Siberian Plateau is undergoing rapid climate change that has resulted in increased frequency of forest fires and subsequent alteration of watershed carbon and nutrient dynamics. Across a watershed chronosequence (3 to 100 years since wildfire) we quantified the effects of fire on quantity and composition of dissolved organic matter (DOM), stream water nutrient concentrations, as well as in-stream nutrient uptake. Wildfires increased concentrations of nitrate for a decade, while decreasing concentrations of dissolved organic carbon and nitrogen (DOC and DON) and aliphatic DOM contribution for five decades. These post-wildfire changes in stream DOM result in lower uptake efficiency of in-stream nitrate in recently burned watersheds. Nitrate uptake (as uptake velocity) is strongly dependent on DOM composition (e.g. polyphenolics), ambient dissolved inorganic nitrogen (DIN), and DOC to DIN ratios. Our observations and experiments suggest that a decade-long pulse of inorganic nitrogen and a reduction of DOC export occur following wildfires in streams draining the Central Siberian Plateau. Increased fire frequency in the region is thus likely to both decrease DOM and increase nitrate delivery to the main stem Yenisei River, and ultimately the Arctic Ocean, in the coming decades. © 2020, The Author(s).

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Держатели документа:
Department of Natural Resources and the Environment, University of New Hampshire, Durham, NH, United States
National Council for Air and Stream Improvement, Inc., Corvallis, OR, United States
V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russian Federation
Pontchartrain Institute for Environmental Sciences, Department of Chemistry, University of New Orleans, New Orleans, LA, United States
Department of Earth, Ocean and Atmospheric Sciences, Florida State University, Tallahassee, FL, United States
Departement des Sciences Biologiques, Universite du Quebec a Montreal, Montreal, QC, Canada

Доп.точки доступа:
Rodriguez-Cardona, B. M.; Coble, A. A.; Wymore, A. S.; Kolosov, R.; Podgorski, D. C.; Zito, P.; Spencer, R. G.M.; Prokushkin, A. S.; McDowell, W. H.

/ B. M. Rodriguez-Cardona, A. A. Coble, A. S. Wymore [et al.] // Sci Rep. - 2020. - Vol. 10, Is. 1. - Ст. 8722, DOI 10.1038/s41598-020-65520-0. - Cited References:53. - The authors would like to thank two anonymous reviewers for their suggestions that helped improve this manuscript and the staff and lab members of the Water Quality Analysis Laboratory at the University of New Hampshire especially Carla Lopez-Lloreda for her help in field work. This work was supported by the National Science Foundation Award No. ICER 14-45246, Crossing the boundaries of Critical Zone science with a virtual institute (SAVI); DEB-1556603, Deciphering the role of dissolved organic nitrogen in stream nutrient cycling; RFBR #14-05-00420, Small catchments within the continuous permafrost zone of Central Siberia: the role of wildfire and forest succession in stream biogeochemistry; and #18-05-60203, Landscape and hydrobiological controls on the transport of terrigenic carbon to the Arctic Ocean. The authors also thank Donald F. Smith and the rest of the NHMFL user facility which is supported by the National Science Foundation Division of Chemistry through DMR-1644779 and the State of Florida. Authors declare no conflicts of interest. . - ISSN 2045-2322РУБ Multidisciplinary Sciences

Аннотация: The Central Siberian Plateau is undergoing rapid climate change that has resulted in increased frequency of forest fires and subsequent alteration of watershed carbon and nutrient dynamics. Across a watershed chronosequence (3 to 100 years since wildfire) we quantified the effects of fire on quantity and composition of dissolved organic matter (DOM), stream water nutrient concentrations, as well as in-stream nutrient uptake. Wildfires increased concentrations of nitrate for a decade, while decreasing concentrations of dissolved organic carbon and nitrogen (DOC and DON) and aliphatic DOM contribution for five decades. These post-wildfire changes in stream DOM result in lower uptake efficiency of in-stream nitrate in recently burned watersheds. Nitrate uptake (as uptake velocity) is strongly dependent on DOM composition (e.g. polyphenolics), ambient dissolved inorganic nitrogen (DIN), and DOC to DIN ratios. Our observations and experiments suggest that a decade-long pulse of inorganic nitrogen and a reduction of DOC export occur following wildfires in streams draining the Central Siberian Plateau. Increased fire frequency in the region is thus likely to both decrease DOM and increase nitrate delivery to the main stemYenisei River, and ultimately the Arctic Ocean, in the coming decades.

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Держатели документа:
Univ New Hampshire, Dept Nat Resources & Environm, Durham, NH 03824 USA.
Natl Council Air & Stream Improvement Inc, Corvallis, OR USA.
VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia.
Univ New Orleans, Dept Chem, Pontchartrain Inst Environm Sci, New Orleans, LA 70148 USA.
Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA.
Univ Quebec Montreal, Dept Sci Biol, Montreal, PQ, Canada.

Доп.точки доступа:
Rodriguez-Cardona, B. M.; Coble, A. A.; Wymore, A. S.; Kolosov, R.; Podgorski, D. C.; Zito, P.; Spencer, R. G. M.; Prokushkin, A. S.; McDowell, W. H.; Prokushkin, Anatoly; Coble, Ashley; Rodriguez-Cardona, Bianca; Wymore, Adam; National Science FoundationNational Science Foundation (NSF) [ICER 14-45246, DEB-1556603]; RFBRRussian Foundation for Basic Research (RFBR) [14-05-00420, 18-05-60203]; National Science Foundation Division of ChemistryNational Science Foundation (NSF) [DMR-1644779]; State of Florida

/ M. S. Bobrova, R. M. Manasypov, V. Y. Shuvarikova [et al.] // Ukr. J. Ecol. - 2020. - Vol. 10, Is. 2. - P455-460, DOI 10.15421/220_123. - Cited References:35. - This research was supported by the RF Federal Target Program, project RFMEFI58717X0036. . - ISSN 2520-2138РУБ Biology

Аннотация: The destruction of plant residues of floodplain vegetation in the aquatic environment was studied. The objects of study were three herbsspecies dominant in the Ob floodplain: Inula salicina, Calamagrostis purpurea and Carex atherodes. Dissolved organic matter (DOM), which plays a significant role in the aqueous environment, was studied carefully. As a result of the work, there was revealed the species specificity in the leaching processes of major elements,trace elements and organic matterfrom herbs. It has been established that the motley grasses samples are primarily affected by the destruction process. The growth of dissolved organic carbon, aromatic substances, condensed carbon fragments in the structure of DOC components in the studied waters was observed in the first fifty hours of the experiment, then the corresponding indicators decreased, probably due to the mineralization of organic substances.

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Держатели документа:
Tomsk State Univ, Lenin Ave 36,Bldg 13, Tomsk 634050, Russia.
Krasnoyarsk Sci Ctr SB RAS, Fed Res Ctr, Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia.
Univ Paul Sabatier, IRD UR 234, UMR5563, GeosciencesEnvironm Toulouse, 14 Ave EdouardBelin, Toulouse, France.

Доп.точки доступа:
Bobrova, M. S.; Manasypov, R. M.; Shuvarikova, V. Yu; Prokushkin, A. S.; Lutova, E.; Borilo, L. P.; Rabtsevich, E. S.; Pokrovsky, O. S.; Shepeleva, L. F.; Luschaeva, I., V; Kolesnichenko, L. G.; RF Federal Target Program [RFMEFI58717X0036]