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

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Найдено документов в текущей БД: 6

    Geostatistical analysis of the spatial variation of the ash reserves in the litter of bog birch forests in Western Siberia
/ T. T. Efremova [et al.] // Eurasian Soil Sci. - 2013. - Vol. 46, Is. 1. - P51-60, DOI 10.1134/S1064229312120034. - Cited References: 29. - This work was supported by Program no. 26 of the Presidium of the Russian Academy of Sciences Biological Diversity and Project no. 2 of the Siberian Division of the Russian Academy of Sciences. . - 10. - ISSN 1064-2293
РУБ Soil Science
Рубрики:
SOIL PROPERTIES
   VARIABILITY

Кл.слова (ненормированные):
variograms -- typological series -- water regime -- litter

Аннотация: A typological series of native Betula pubescens Ehrh. dendrocenoses along the channel of a river crossing a bog was studied. The variability of the mineral element reserves is described by geostatistical methods as the sum of a trend, autocorrelation, and random components. The contribution of deterministic and random components has been assessed in the years with average precipitation and in the year of 2007 with high and long-term flooding. The empirical variograms and the parameters of the model variograms are presented. The class of the spatial correlation of the ash reserves is described. A primary cause of the ash content's variability is the specific water regime, which is determined by the following: (i) the abundance and duration of the spring floods responsible for the silt mass brought by the river and (ii) the draining effect of the intrabog river, the distance from which provided the formation in the forest of the ground cover with the specific species composition and ash content. The falloff of the arboreal layer in the bog birch forests formed the fundamental mineral background of the litter.

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Держатели документа:
[Efremova, T. T.
Sekretenko, O. P.
Avrova, A. F.
Efremov, S. P.] Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Efremova, T.T.; Sekretenko, O.P.; Avrova, A.F.; Efremov, S.P.

    Role of climate in removing dissolved organic matter from cryolithozone watersheds in central Siberia
/ 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.

    Dryland belt of Northern Eurasia: contemporary environmental changes and their consequences
/ P. Groisman [et al.] // Environ. Res. Lett. - 2018. - Vol. 13, Is. 11. - Ст. 115008, DOI 10.1088/1748-9326/aae43c. - Cited References:92. - PG and GH were supported in part by NASA grant NNX15AP81G. NT acknowledges the Russian Foundation for Basic Research grant 16-05-00496. OZ, AD, and PG were partially supported through 'ARCTIC-ERA: ARCTIC climate change and its impact on environment, infrastructures, and resource availability' sponsored by ANR (France), RFBR (Russia), and US NSF (grants 1717770 and 1558389). YC was supported by National Youth Science Fund of China grant 41701227 and by the Priority Academic Program Development of Jiangsu Higher Education Institutions in China. The work of AS was partially supported by US NSF grant 1602879 and Russian RFFI grant 18-05-60240. Grant 14.B25.31.0026 of the Ministry of Education and Science of the Russian Federation provided support to PG, NT, AS, OB, and OZ for their work conducted at the P P Shirshov Institute of Oceanology. Support for the work of IY and IK was provided by grant AP05135848 of the Ministry of Education and Sciences of the Republic of Kazakhstan. JC and RJ were supported by the Dynamics of Coupled Natural and Human Systems (CNH) Program of the NSF (grant 1313761) and the LCLUC program of NASA (grant NNX14AD85G). Grant 1717770 by the US National Science Foundation to George Washington University provided support to PG for his work at the Hydrology Science and Services Corporation via Sub-Recipient Agreement Number 17-S03R. The synthesis workshop (Ulaanbaatar, 2-5 June 2017) was partially sponsored by the 'Dynamics of Coupled Natural and Human Systems' program of the NSF (grant 1313761) and the LCLUC program of NASA (grant NNX15AD10G). . - ISSN 1748-9326
РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Аннотация: The dryland belt (DLB) in Northern Eurasia is the largest contiguous dryland on Earth. During the last century, changes here have included land use change (e.g. expansion of croplands and cities), resource extraction (e.g. coal, ores, oil, and gas), rapid institutional shifts (e.g. collapse of the Soviet Union), climatic changes, and natural disturbances (e.g. wildfires, floods, and dust storms). These factors intertwine, overlap, and sometimes mitigate, but can sometimes feedback upon each other to exacerbate their synergistic and cumulative effects. Thus, it is important to properly document each of these external and internal factors and to characterize the structural relationships among them in order to develop better approaches to alleviating negative consequences of these regional environmental changes. This paper addresses the climatic changes observed over the DLB in recent decades and outlines possible links of these changes (both impacts and feedback) with other external and internal factors of contemporary regional environmental changes and human activities within the DLB.

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Держатели документа:
North Carolina State Univ, NOAA, Ctr Environm Informat, Asheville, NC 28804 USA.
RAS, PP Shirshov Inst Oceanol, Moscow, Russia.
Hydrol Sci & Serv Corp, Asheville, NC 28801 USA.
Russian Inst Hydrometeorol Informat, Obninsk, Kaluga Area, Russia.
Michigan State Univ, E Lansing, MI 48824 USA.
State Hydrol Inst, St Petersburg, Russia.
Univ New Hampshire, Earth Syst Res Ctr, Durham, NH 03824 USA.
Nanjing Forestry Univ, Coll Biol & Environm, Joint Innovat Ctr Modern Forestry Studies, Nanjing, Jiangsu, Peoples R China.
SB RAS, Krasnoyarsk Fed Res Ctr, Sukachev Inst Forest, Krasnoyarsk, Russia.
Joseph Fourier Univ, Lab Glaciol & Geophys Environm, Grenoble, France.
Oklahoma State Univ, Stillwater, OK 74078 USA.
Univ Sopron, Sopron, Hungary.
Minist Energy Republ Kazakhstan, Joint Stock Co Zhasyl Damu, Alma Ata, Kazakhstan.
Natl Ctr Space Res & Technol, Alma Ata, Kazakhstan.

Доп.точки доступа:
Groisman, Pavel; Bulygina, Olga; Henebry, Geoffrey; Speranskaya, Nina; Shiklomanov, Alexander; Chen, Yizhao; Tchebakova, Nadezhda; Parfenova, Elena; Tilinina, Natalia; Zolina, Olga; Dufour, Ambroise; Chen, Jiquan; John, Ranjeet; Fan, Peilei; Mayas, Csaba; Yesserkepova, Irina; Kaipov, Ildan; NASA [NNX15AP81G]; Russian Foundation for Basic Research grant [16-05-00496]; 'ARCTIC-ERA: ARCTIC climate change and its impact on environment, infrastructures, and resource availability' - ANR (France); RFBR (Russia); US NSF [1602879, 1717770, 1558389]; National Youth Science Fund of China [41701227]; Priority Academic Program Development of Jiangsu Higher Education Institutions in China; Russian RFFI [18-05-60240]; Ministry of Education and Science of the Russian Federation [14.B25.31.0026]; Ministry of Education and Sciences of the Republic of Kazakhstan [AP05135848]; Dynamics of Coupled Natural and Human Systems (CNH) Program of the NSF [1313761]; LCLUC program of NASA [NNX15AD10G, NNX14AD85G]; US National Science Foundation [1717770, 17-S03R]; 'Dynamics of Coupled Natural and Human Systems' program of the NSF [1313761]

    Weak impact of landscape parameters and rock lithology on Mg isotope composition of the Yenisey River and its tributaries
/ 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.

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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.

    Testing landscape, climate and lithology impact on carbon, major and trace elements of the lena river and its tributaries during a spring flood period
/ S. N. Vorobyev, Y. Kolesnichenko, M. A. Korets, O. S. Pokrovsky // Water. - 2021. - Vol. 13, Is. 15. - Ст. 2093, DOI 10.3390/w13152093 . - ISSN 2073-4441
Аннотация: Transport of carbon, major and trace elements by rivers in permafrost-affected regions is one of the key factors in circumpolar aquatic ecosystem response to climate warming and permafrost thaw. A snap-shot study of major and trace element concentration in the Lena River basin during the peak of spring flood revealed a specific group of solutes according to their spatial pattern across the river main stem and tributaries and allowed the establishment of a link to certain landscape parameters. We demonstrate a systematic decrease of labile major and trace anion, alkali and alkaline-earth metal concentration downstream of the main stem of the Lena River, linked to change in dominant rocks from carbonate to silicate, and a northward decreasing influence of the groundwater. In contrast, dissolved organic carbon (DOC) and a number of low-soluble elements exhibited an increase in concentration from the SW to the NE part of the river. We tentatively link this to an increase in soil organic carbon stock and silicate rocks in the Lena River watershed in this direction. Among all the landscape parameters, the proportion of sporadic permafrost on the watershed strongly influenced concentrations of soluble highly mobile elements (Cl, B, DIC, Li, Na, K, Mg, Ca, Sr, Mo, As and U). Another important factor of element concentration control in the Lena River tributaries was the coverage of the watershed by light (for B, Cl, Na, K, U) and deciduous (for Fe, Ni, Zn, Ge, Rb, Zr, La, Th) needle-leaf forest (pine and larch). Our results also suggest a DOC-enhanced transport of low-soluble trace elements in the NW part of the basin. This part of the basin is dominated by silicate rocks and continuous permafrost, as compared to the carbonate rock-dominated and groundwater-affected SW part of the Lena River basin. Overall, the impact of rock lithology and permafrost on major and trace solutes of the Lena River basin during the peak of spring flood was mostly detected at the scale of the main stem. Such an impact for tributaries was much less pronounced, because of the dominance of surface flow and lower hydrological connectivity with deep groundwater in the latter. Future changes in the river water chemistry linked to climate warming and permafrost thaw at the scale of the whole river basin are likely to stem from changes in the spatial pattern of dominant vegetation as well as the permafrost regime. We argue that comparable studies of large, permafrost-affected rivers during contrasting seasons, including winter baseflow, should allow efficient prediction of future changes in riverine ‘inorganic’ hydrochemistry induced by permafrost thaw. © 2021 by the authorsLicensee MDPI, Basel, Switzerland.

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Держатели документа:
BIO-GEO-CLIM Laboratory, Tomsk State University, 35 Lenina, Tomsk, 634050, Russian Federation
V.N. Sukachev Institute of Forest of the Siberian Branch of Russian Academy of Sciences—Separated Department of the KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Geosciences and Environment Toulouse, UMR 5563 CNRS, University of Toulouse, 14 Avenue Edouard Belin, Toulouse, 31400, France
N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences, 23 Nab. Northern Dvina, Arkhangelsk, 163002, Russian Federation

Доп.точки доступа:
Vorobyev, S. N.; Kolesnichenko, Y.; Korets, M. A.; Pokrovsky, O. S.

    Seasonality of DOC Export From a Russian Subarctic Catchment Underlain by Discontinuous Permafrost, Highlighted by High-Frequency Monitoring
/ L. Gandois, N. I. Tananaev, A. Prokushkin [et al.] // J. Geophys. Res.-Biogeosci. - 2021. - Vol. 126, Is. 10. - Ст. e2020JG006152, DOI 10.1029/2020JG006152. - Cited References:97. - This research was supported by the "Institut ecologie et environnement" of the French "Centre National de la Recherche Scientifique" (CNRS-INEE) through the PEPS program "Blanc" 2015, the "Institut des Sciences de l.univers" through the EC2CO program, a Marie Curie International Reintegration Grant (TOMCAR-Permafrost #277059) within the 7th European Community Framework Program, the mobility program of INPT, and the CNRS Russian-French cooperation "CAR-WET-SIB." The ERANet-LAC joint program (METHANOBASE ELAC2014_DCC-0092), as well as the Russian Fund for Basic Research, Projects No. 18-05-60240-Arctic (N.T., A.P.) and 18-05-60203 (A.P.) provided additional support. The Siberian Branch of the Russian Academy of Sciences supports the Igarka Geocryology Laboratory through its field research facilities support program. Historical geodetic references, pile heights and gauging station descriptions were provided by Turukhansk hydrometeorological observatory staff, regional division of Roshydromet. The authors thank Anatoly Pimov for great help in the field, Arnaud Mansat for the map for Figure 1, Frederic Julien, Virginie Payre-Suc and Didier Lambrigot for the analysis of DOC and major elements (PAPC platform, EcoLab laboratory), Sergei Titov and Roman Kolosov for the analysis at Sukachev Institute of Forest SB RAS and Christine Hatte (LSCE laboratory) for the 14C analysis of DOC. . - ISSN 2169-8953. - ISSN 2169-8961
РУБ Environmental Sciences + Geosciences, Multidisciplinary

Аннотация: Intense climate change and permafrost degradation impact northern watersheds and ultimately organic carbon transfer from terrestrial to aquatic ecosystems. We investigated the contemporary dissolved organic carbon (DOC) dynamics in a northern catchment underlain by discontinuous permafrost (Graviyka River, northern Siberia), where historical meteorological and hydrological data are available since 1936. Mean annual air temperature (MAAT), in contrast to precipitation and discharge was found to show a significant increasing trend since 1950. Using in situ sensing of fluorescent dissolved organic matter (fDOM), we estimated DOC concentrations at a high temporal frequency (1h) during 3 years (2015-2018), and calculated annual specific fluxes of 5.2-5.5 g C m(2) yr(-1). High DOC concentrations (above 10 mg L-1) are sustained all year, exhibiting nearly chemostatic behavior. Nevertheless, the high-frequency survey of DOC and other water parameters revealed the seasonality of DOC origin and pathways in the watershed. The spring freshet dominates the annual export (up to 80%), but summer and autumn floods can also contribute up to 9% and 8% respectively. The high-frequency sampling was able to capture the specific dynamic of DOC concentration during spring flood (DOC peak preceding discharge, dilution during the spring freshet) and summer and autumn floods (contribution of DOC-rich, low conductivity water). These observations suggest a significant contribution of organic-rich water originating in peatlands, potentially from degrading palsas. The study demonstrates both that high-frequency sampling is essential to capture key events for DOC export, and that more long-term monitoring is urgently needed in these rapidly evolving watersheds.

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Держатели документа:
Univ Toulouse, Lab Ecol Fonct & Environm, CNRS, INPT,UPS, Toulouse, France.
Russian Acad Sci, Melnikov Permafrost Inst, Yakutsk, Russia.
Russian Acad Sci, Sukachev Inst Forest, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.

Доп.точки доступа:
Gandois, L.; Tananaev, N., I; Prokushkin, A.; Solnyshkin, I.; Teisserenc, R.; "Institut ecologie et environnement" of the French "Centre National de la Recherche Scientifique" (CNRS-INEE) through the PEPS program "Blanc" 2015; "Institut des Sciences de l.univers" through the EC2CO program, a Marie Curie International Reintegration Grant (TOMCAR-Permafrost) within the 7th European Community Framework Program [277059]; INPT; CNRS Russian-French cooperation "CAR-WET-SIB"; ERANet-LAC joint program [METHANOBASE ELAC2014_DCC-0092]; Russian Fund for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-05-60240, 18-05-60203]; Siberian Branch of the Russian Academy of SciencesRussian Academy of Sciences