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

/ 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.

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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.

/ L. V. Mukhortova, I. N. Bezkorovainaya // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 1. - P191-202, DOI 10.1007/s11027-006-1020-8 . - ISSN 1381-2386
Аннотация: The evaluation of biospheric role of the boreal forests in the accumulation of carbon is connected with the evaluation of organic matter (OM) pool in soils. The research sites were larch forests, they are situated on Nizhne-Tungusskoe Plateau. Larch forests of feather-moss and lichen types (110 and 380 years old) were formed on 'ochric podbur' soils. Litter stocks are 3.5-4.5 kg m-2 with thickness 10-25 cm. Cryomezomorphic northern taiga soils contains 38-73 t (carbon) ha-1. Pool of fast mineralized OM has average value 38.1 t (carbon) ha-1, including 20.5 and 6.4 t (Carbon) ha-1 of labile compounds on surface and in the soil, and 11.2 t (carbon) ha-1 of mobile OM. Microbial mass reaches 1.78-3.47 t (carbon) ha-1, its proportion is 3.6-4.9% of the total OM carbon. Zoomass of feather-moss larch forest is 0.20-0.61 * 10-2, in lichen larch forest -0.01-0.07 * 10-2 t (carbon) ha -1. A pool of resistant to biological decomposition and bonded to mineral soil matrix OM is 17.7 t (carbon) ha-1 and it varies from 18.6 to 29.0 in feather-moss larch forest, and from 6.4 to 17.0 t (carbon) ha-1 in lichen larch forest. Two-years field experiment has been performed to determine transformation rates of various plant litter fractions and to clarify the role of soil biota in these processes. The results showed participation of all biota groups in the decomposition of plant residues caused weight loss of larch-needles and root mortmass. Isolation of organic matter from all-size invertebrate groups leads to some decrease of decomposition activity. В© Springer 2006.

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Держатели документа:
Institute of Forest, Russian Academy of Sciences, Siberian Branch Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Mukhortova, L.V.; Bezkorovainaya, I.N.

/ E. F. Vedrova, F. I. Pleshikov, V. Ya. Kaplunov // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 1. - P173-190, DOI 10.1007/s11027-006-1016-4 . - ISSN 1381-2386
Аннотация: The study was carried out in the Turukhansk Research Station of Yenisei Transect (65В°46'N, 89В°25'E). Larch (Larix gmelinii (Rupr.) Rupr.) is the dominant overstory tree species. The research has been conducted on four permanent test plots in same-age mature (110-year old) and overmature (380-year old) post-fire larch stands of green moss and lichen groups of forest type. Carbon cycle parameters were assessed based on a biometric method. Quantitative analysis of carbon pools and fluxes shows that net ecosystem production of north taiga larch stands averages 32% of net primary production. Sink of atmospheric CO2 makes 1.22 and 0.74 t C ha-1 year-1 for mature and overmature green moss larch stands, and 0.65 and 0.35 t C ha -1 year-1 for lichen type. Net carbon sink in the tree layer make up 9% of net primary production carbon, ground vegetation - 15%, and dead plant residues accumulation - 8% of atmospheric carbon uptake via photosynthesis. В© Springer 2006.

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Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Science, 660036 Krasnoyarsk, Akademgorodok, Russian Federation

Доп.точки доступа:
Vedrova, E.F.; Pleshikov, F.I.; Kaplunov, V.Ya.

/ O. V. Masyagina [et al.] // Russ. J. Ecol. - 2015. - Vol. 46, Is. 1. - P27-35, DOI 10.1134/S1067413615010117 . - ISSN 1067-4136
Аннотация: An analysis of CO2 emissions and soil microbiological activity has been performed in larch stands of different ages that developed on cryogenic soils and represent different stages of post-fire succession. An abrupt increase in the soil emissions of CO2 (by more than 2 times) in young stands (15–30 years old), as well as a decrease of soil-respiration rate at the later stages of pyrogenic successions because of the restoration of the moss-lichen cover and the closure of the stand canopy was seen. Intraseasonal and interannual variations of soil CO2 fluxes were also revealed; however, their dynamics was largely determined by the local conditions.

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Держатели документа:
Sukachev Institute of Forestry, Siberian Branch, Russian Academy of SciencesAkademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Masyagina, O.V.; Evgrafova, S.Y.; Titov, S.V.; Prokushkin, A.S.

/ I. A. Goncharova, R. S. Sobachkin // Russ. J. Ecol. - 2015. - Vol. 46, Is. 4. - P309-316, DOI 10.1134/S1067413615040098 . - ISSN 1067-4136
Аннотация: The species composition of ground vegetation has been studied in 25-year spruce cultures of different densities in the southern taiga subzone of central Siberia (Krasnoyarsk krai). The parcellar structure and total coverage of ground vegetation layer have been evaluated. Changes in the species diversity, coverage, and parcellar structure of the herb-grass and moss-lichen layer depending on tree stand density have been analyzed. © 2015, Pleiades Publishing, Ltd.

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Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Goncharova, I.A.; Sobachkin, R.S.

/ O. V. Trefilova, D. Y. Efimov // Eurasian Soil Sci. - 2015. - Vol. 48, Is. 8. - P792-801, DOI 10.1134/S1064229315080098 . - ISSN 1064-2293
Аннотация: The results of the integrated analysis of changes in the state of vegetation and soils (Cutanic Albeluvisol) at the different stages of natural forest regeneration (4-, 11- and 24-year-old felled areas) and in a mature fir forest of the short grass-green moss forest types in the northern part of the western slope of the Yenisei Ridge are presented. A dynamic trend of fir forests restoration to the formation of the structure characteristics of the initial forest types is shown to be performed through the stages of forest meadows and secondary short grass (forbs) and birch stands. The changes in vegetation are accompanied by the fast transformation of the soil properties towards the improvement of soil fertilization However, these changes are temporary. © 2015, Pleiades Publishing, Ltd.

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Держатели документа:
Sukachev Institute of Forest, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Trefilova, O.V.; Efimov, D.Y.

/ V. E. Benkova [et al.] // Contemp. Probl. Ecol. - 2015. - Vol. 8, Is. 7. - P854-861, DOI 10.1134/S1995425515070045 . - ISSN 1995-4255
Аннотация: The results of research studies on the influence of high moss-and-lichen mosaicity typical for the northern taiga in Central Evenkia on the dynamics of radial growth of Gmelin larch trees (Larix gmelinii (Rupr.) Rupr.) are reported. Three sample plots were laid out in the larch ledum–cowberry–green moss forest on the northwest facing slope (8°–10°) in close proximity to each other; they differed in the proportions of area occupied by the principal components of a moss–lichen cover (Aulacomnium turgidum, Pleurozium schreberi, Cladonia rangiferina, and Hylocomium splendens), spatial distribution, and thermal properties of seasonally thawed soil layers. The worst thermal soil properties under the current climatic conditions have determined the comparatively low radial growth of trees in the sampling area, reduced response to air-temperature variations in the period of preseason cambium activity and at the beginning of the radial growth period, and heightened the response to this factor at the end of a season. © 2015, Pleiades Publishing, Ltd.

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Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Academgorodok 50/28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Benkova, V. E.; Zyryanova, O. A.; Shashkin, A. V.; Benkova, A. V.; Sobachkin, D. S.; Simanko, V. V.; Zyryanov, V. I.

/ C. Knoblauch [et al.] // J. Geophys. Res. G Biogeosci. - 2015. - Vol. 120, Is. 12. - P2525-2541, DOI 10.1002/2015JG003053 . - ISSN 2169-8953
Аннотация: Methane (CH4) production, oxidation, and emission were studied in ponds of the permafrost-affected polygonal tundra in northeast Siberia. Microbial degradation of organic matter in water-saturated soils is the most important source for the climate-relevant trace gas CH4. Although ponds and lakes cover a substantial fraction of the land surface of northern Siberia, data on CH4 fluxes from these water bodies are scarce. Summer CH4 fluxes were measured with closed chambers at the margins of ponds vegetated by vascular plants and in their centers without vascular plants. Furthermore, CH4 and oxygen concentration gradients, stable carbon isotope signatures of dissolved and emitted CH4, and microbial CH4 production and CH4 oxidation were determined. Mean summer fluxes were significantly higher at the margins of the ponds (46.1 ± 15.4 mg CH4 m-2 d-1) than at the centers (5.9 ± 8.2 mg CH4 m-2 d-1). CH4 transport was dominated by diffusion in most open water sites, but substantial ebullitive fluxes (12.0 ± 8.1 mg CH4 m-2 d-1) were detected in one pond. Plant-mediated transport accounted for 70 to 90% of total CH4 fluxes above emerged vegetation. In the absence of vascular plants, 61 to 99% of the CH4 produced in the anoxic bottom soil was consumed in a layer of the submerged moss Scorpidium scorpioides, which covered the bottoms of the ponds. The fraction of CH4 oxidized was lower at sites with vascular plants since CH4 was predominantly transported through their aerenchyma, thereby bypassing the CH4 oxidation zone in the moss layer. These results emphasize the importance of moss-associated CH4 oxidation causing low CH4 fluxes from the studied Siberian ponds. © 2015. American Geophysical Union. All Rights Reserved.

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Держатели документа:
Institute of Soil Science, Center for Earth System Research and Sustainability, Universitat Hamburg, Hamburg, Germany
Institute of Geography, Faculty of Physics and Earth Science, Leipzig University, Leipzig, Germany
Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Science, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Knoblauch, C.; Spott, O.; Evgrafova, S.; Kutzbach, L.; Pfeiffer, E. -M.

/ T. T. Efremova, A. F. Avrova, S. P. Efremov // Eurasian Soil Sci. - 2016. - Vol. 49, Is. 9. - P969-978, DOI 10.1134/S1064229316090039 . - ISSN 1064-2293
Аннотация: The approaches of multivariate statistics have been used for the numerical classification of morphogenetic types of moss litters in swampy spruce forests according to their physicochemical properties (the ash content, decomposition degree, bulk density, pH, mass, and thickness). Three clusters of moss litters— peat, peaty, and high-ash peaty—have been specified. The functions of classification for identification of new objects have been calculated and evaluated. The degree of decomposition and the ash content are the main classification parameters of litters, though all other characteristics are also statistically significant. The final prediction accuracy of the assignment of a litter to a particular cluster is 86%. Two leading factors participating in the clustering of litters have been determined. The first factor—the degree of transformation of plant remains (quality)—specifies 49% of the total variance, and the second factor—the accumulation rate (quantity)— specifies 26% of the total variance. The morphogenetic structure and physicochemical properties of the clusters of moss litters are characterized. © 2016, Pleiades Publishing, Ltd.

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Держатели документа:
Sukachev Institute of Forestry, Siberian Branch, Russian Academy of Sciences : Akademgorodok 50/28, Krasnoyarsk, Russian Federation

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