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

/ M. I. Makarov [et al.] // Eurasian Soil Sci. - 2013. - Vol. 46, Is. 7. - P778-787, DOI 10.1134/S1064229313070053. - Cited References: 32. - This study was supported by the Russian Foundation for Basic Research (project no. 10-04-00780). . - 10. - ISSN 1064-2293РУБ Soil Science

Аннотация: The drying of samples of mountain-meadow soils characterized by their permanently high moisture under natural conditions fundamentally changes the concentrations of the labile nitrogen and carbon compounds, as well as the patterns of their microbial transformation. When the soil samples are dried, a four- to fivefold increase in the content of the extractable organic nitrogen compounds, carbon compounds, and inorganic nitrogen compounds is observed, while the content of nitrogen and carbon of the microbial biomass decreases by two-three times. The rewetting of the dried soil launches the process of the replenishment of the nitrogen and carbon reserves in the microbial biomass. However, even after two weeks of incubation, their values were 1.5-2 times lower than the initial values typical of the natural soil. The restoration of the microbial community in the samples of the previously dried soils occurs in the absence of a deficiency of labile organic compounds and is accompanied by their active mineralization and the low uptake of ammonium nitrogen by the microorganisms.

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Держатели документа:
Makarov, M. I.
Mulyukova, O. S.
Malysheva, T. I.] Moscow MV Lomonosov State Univ, Fac Soil Sci, Moscow 119992, Russia
[Menyailo, O. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk, Russia

Доп.точки доступа:
Makarov, M.I.; Mulyukova, O.S.; Malysheva, T.I.; Menyailo, O.V.

[Text] / E. A. Vaganova [et al.] // Contemp. Probl. Ecol. - 2008. - Vol. 1, Is. 2. - P168-182, DOI 10.1134/S1995425508020021. - Cited References: 67 . - 15. - ISSN 1995-4255РУБ Ecology

Аннотация: Results of measurements and calculations of carbon budget parameters of forests and swamps of Siberia are reported. The zonal variability of reserves (and an increment in reserves) of carbon in forest and swamp ecosystems is characterized, carbon dioxide fluxes are measured directly by means of microeddy pulsations, and an uncertainty brought into the calculation of carbon budget parameters by forest fires is estimated.

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[Vaganova, E. A.
Vedrova, E. F.
Verkhovets, S. V.
Efremov, S. P.
Efremova, T. T.
Onuchin, A. A.
Sukhinin, A. I.
Shibistova, O. B.] RAS, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Kruglov, V. B.] Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Vaganov, E.A.; Vedrova, E.F.; Verkhovets, S.V.; Efremov, S.P.; Efremova, T.T.; Kruglov, V.B.; Onuchin, A.A.; Sukhinin, A.I.; Shibistova, O.B.

[Text] / G. . Guggenberger [et al.] // Glob. Change Biol. - 2008. - Vol. 14, Is. 6. - P1367-1381, DOI 10.1111/j.1365-2486.2008.01568.x. - Cited References: 72 . - 15. - ISSN 1354-1013РУБ Biodiversity Conservation + Ecology + Environmental Sciences

Аннотация: Boreal permafrost soils store large amounts of organic carbon (OC). Parts of this carbon (C) might be black carbon (BC) generated during vegetation fires. Rising temperature and permafrost degradation is expected to have different consequences for OC and BC, because BC is considered to be a refractory subfraction of soil organic matter. To get some insight into stocks, variability, and characteristics of BC in permafrost soils, we estimated the benzene polycarboxylic acid (BPCA) method-specific composition and storage of BC, i.e. BPCA-BC, in a 0.44 km(2)-sized catchment at the forest tundra ecotone in northern Siberia. Furthermore, we assessed the BPCA-BC export with the stream draining the catchment. The catchment is composed of various landscape units with south-southwest (SSW) exposed mineral soils characterized by thick active layer or lacking permafrost, north-northeast (NNE) faced mineral soils with thin active layer, and permafrost-affected raised bogs in plateau positions showing in part thermokarst formation. There were indications of vegetation fires at all landscape units. BC was ubiquitous in the catchment soils and BPCA-BC amounted to 0.6-3.0% of OC. This corresponded to a BC storage of 22-3440 g m(-2). The relative contribution of BPCA-BC to OC, as well as the absolute stocks of BPCA-BC were largest in the intact bogs with a shallow active layer followed by mineral soils of the NNE aspects. In both landscape units, a large proportion of BPCA-BC was stored within the permafrost. In contrast, mineral soils with thick active layer or lacking permafrost and organic soils subjected to thermokarst formation stored less BPCA-BC. Permafrost is, hence, not only a crucial factor in the storage of OC but also of BC. In the stream water BPCA-BC amounted on an average to 3.9% of OC, and a yearly export of 0.10 g BPCA-BC m(-2) was calculated, most of it occurring during the period of snow melt with dominance of surface flow. This suggests that BC mobility in dissolved and colloidal phase is an important pathway of BC export from the catchment. Such a transport mechanism may explain the high BC concentrations found in sediments of the Arctic Ocean.

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[Guggenberger, Georg
Rodionov, Andrej
Grabe, Matthias] Univ Halle Wittenberg, Inst Agr & Nutr Sci, D-06108 Halle, Germany
[Rodionov, Andrej] Brandenburg Tech Univ Cottbus, Chair Soil Protect & Recultivat, D-03013 Cottbus, Germany
[Shibistova, Olga
Mikheyeva, Natalia
Zrazhevskaya, Galina] RAS, VN Sukachev Inst Forest, Akademgorodok, Krasnoyarsk 660036, Russia
[Grabe, Matthias] Max Planck Inst Biogeochem, D-07745 Jena, Germany
[Kasansky, Oleg A.] RAS, SB, Field Stn Igarka, Permafrost Inst Yakutsk, Igarka 663200, Russia
[Fuchs, Hans] Univ Gottingen, Inst Forest Management & Yield Sci, D-37077 Gottingen, Germany
[Flessa, Heiner] Univ Gottingen, Inst Soil Sci & Forest Nutr, D-37077 Gottingen, Germany

Доп.точки доступа:
Guggenberger, G...; Rodionov, A...; Shibistova, O...; Grabe, M...; Kasansky, O.A.; Fuchs, H...; Mikheyeva, N...; Zrazhevskaya, G...; Flessa, H...

[Text] / K. J. Ranson [et al.] // Remote Sens. Environ. - 2004. - Vol. 93, Is. 3. - P283-295, DOI 10.1016/j.rse.2004.06.019. - Cited References: 38 . - 13. - ISSN 0034-4257РУБ Environmental Sciences + Remote Sensing + Imaging Science & Photographic Technology

Аннотация: Monitoring the dynamics of the circumpolar boreal forest (taiga) and Arctic tundra boundary is important for understanding the causes and consequences of changes observed in these areas. This ecotone, the world's largest, stretches for over 13,400 km and marks the transition between the northern limits of forests and the Southern margin of the tundra. Because of the inaccessibility and large extent of this zone, remote sensing data can play an important role for mapping the characteristics and monitoring the dynamics. Basic understanding of the capabilities of existing space borne instruments for these purposes is required. In this study we examined the use of several remote sensing techniques for characterizing the existing tundra-taiga ecotone. These include Landsat-7, MISR, MODIS and RADARSAT data. Historical cover maps, recent forest stand measurements and high-resolution IKONOS images were used for local ground truth. It was found that a tundra-taiga transitional area can be characterized using multi-spectral Landsat ETM+ summer images, multi-angle MISR red band reflectance images, RADARSAT images with larger incidence angle, or multi-temporal and multi-spectral MODIS data. Because of different resolutions and spectral regions covered, the transition zone maps derived from different data types were not identical, but the general patterns were consistent. (C) 2004 Published by Elsevier Inc.

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NASA, Goddard Space Flight Ctr, Biospher Sci Branch, Greenbelt, MD 20771 USA
Univ Maryland, Dept Geog, College Pk, MD 20742 USA
Academogorodok, VN Sukachev Inst Forest, Krasnoyarsk, Russia
Sci Syst & Applicat Inc, Lanham, MD USA

Доп.точки доступа:
Ranson, K.J.; Sun, G...; Kharuk, V.I.; Kovacs, K...

[Text] / E. F. Vedrova, L. S. Shugalei, V. D. Stakanov // J. Veg. Sci. - 2002. - Vol. 13: IGBP Terrestrial Transects Workshop (JUL 12-16, 1999, DARWIN, AUSTRALIA), Is. 3. - P341-350, DOI 10.1111/j.1654-1103.2002.tb02058.x. - Cited References: 55 . - 10. - ISSN 1100-9233РУБ Plant Sciences + Ecology + Forestry

Аннотация: We evaluated the balance of production and decomposition in natural ecosystems of Pinus sylvestris, Larix sibirica and Betula pendula in the southern boreal forests of central Siberia. using the Yenisei transect. We also investigated whether anthropogenic disturbances (logging, fire and recreation pressure) influence the carbon budget. Pinus and Larix stands up to age class VI act as a net sink for atmospheric carbon. Mineralization rates in young Betula forests exceed rates of uptake via photosynthesis assimilation. Old-growth stands of all three forest types are CO2 sources to the atmosphere. The prevalence of old-growth Larix in the southern taiga suggests that Larix stands are a net source of CO2. The CO, flux to the atmosphere exceeds the uptake of atmospheric carbon via photosynthesis by 0.23 t C.ha(-1).yr(-1) (47%). Betula and Pinus forests are net sinks, as photosynthesis exceeds respiration by 13% and 16% respectively. The total carbon flux from Pinus, Larix and Betula ecosystems to the atmosphere is 10 387 thousand tons C.yr(-1). Net Primary Production (0.935 t-C.ha(-1)) exceeds carbon release from decomposition of labile and mobile soil organic matter (Rh) by 767 thousand tons C (0.064 t-C.ha(-1)), so that these forests are net C-sinks. The emissions due to decomposition of slash (10 1 thousand tons C; 1.0%) and from fires (0.21%) are very small. The carbon balance of human-disturbed forests is significantly different. A sharp decrease in biomass stored in Pinus and Betula ecosystems leads to decreased production. As a result, the labile organic matterpool decreased by 6-8 times; course plant residues with a low decomposition rate thus dominate this pool. Annual carbon emissions to the atmosphere from these ecosystems are determined primarily by decomposing fresh litterfall. This source comprises 40-79% of the emissions from disturbed forests compared to only 13-28% in undisturbed forests. The ratio of emissions to production (NPP) is 20-30% in disturbed and 52-76% in undisturbed forests.

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Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest & Wood, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vedrova, E.F.; Shugalei, L.S.; Stakanov, V.D.

[Text] / T. . Kajimoto [et al.] // Tree Physiol. - 1999. - Vol. 19, Is. 12. - P815-822. - Cited References: 42 . - 8. - ISSN 0829-318XРУБ Forestry

Аннотация: We assessed above- and belowground biomass and net primary production (NPP) of a mature Larix gmelinii (Rupr.) Rupr. forest (240-280 years old) established on permafrost soils in central Siberia. Specifically, we investigated annual carbon budgets in roots in relation to root system development and availability of soil resources. Total stand biomass estimated by allometry was about 39 Mg ha(-1). Root biomass (17 Mg ha(-1)) comprised about 43% of total biomass. Coarse root (greater than or equal to 5 mm in diameter) biomass was about twice that of fine roots (< 5 mm). The aboveground biomass/root biomass ratio (T/R) of the larch stand was about unity, which is much less than that of other boreal and subalpine conifer forests. The proportion of fine roots in total root biomass (35%) was relatively high compared with other cold-climate evergreen conifer forests. Total NPP, defined as the sum of annual biomass increment of woody parts and needle biomass, was estimated to be 1.8 Mg ha(-1) year(-1). Allocation of total NPP to needle production was 56%. The proportion of total NPP in belowground production (27%) was less than for evergreen taiga forests. However, belowground NPP was probablyunderestimatedbecauserootmortalitywasexcluded.We conclude that L. gmelinii trees invested annual carbon gains largely into needle production or roots, or both, at the expense of growth of aboveground woody parts. This carbon allocation pattern, which resulted in the construction of exploitative root networks, appeared to be a positive growth response to the nutrient-poor permafrost soil of central Siberia.

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Tohoku Res Ctr, Forestry & Forest Prod Res Inst, Morioka, Iwate 0200123, Japan
Hokkaido Res Ctr, Forestry & Forest Prod Res Inst, Sapporo, Hokkaido 062, Japan
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Ryukoku Univ, Fac Intercultural Commun, Environm Studies Lab, Otsu, Shiga 52021, Japan

Доп.точки доступа:
Kajimoto, T...; Matsuura, Y...; Sofronov, M.A.; Volokitina, A.V.; Mori, S...; Osawa, A...; Abaimov, A.P.

[Text] / T. . Kajimoto [et al.] // For. Ecol. Manage. - 2006. - Vol. 222, Is. 01.03.2013. - P314-325, DOI 10.1016/j.foreco.2005.10.031. - Cited References: 62 . - 12. - ISSN 0378-1127РУБ Forestry

Аннотация: We examined size-mass allometry and biomass allocation of two larch species (Larix gmelinii (Rupr.) Rupr. and Larix cajanderi Mayer) that grow on the continuous permafrost regions in Siberia. Sample tree data (total n = 27) gathered from four mature stands (> 100 years old) were employed for analysis. First, to determine good size predictor of biomass, site-specific allometric relationships (log-linear equation form) were derived between dry mass of four components (stem, branch, needle and coarse root; >= 5 mm in diameter) and seven size variables; stem diameters (breast height, 30 cm height and crown base), sapwood areas (breast height and 30 cm height), and two combined-variables (tree height x dia-diameter). For all components, site-specific allometric equations based on breast-height diameter (D) always gave high correlations as those using other size variables. However, between-stand comparisons of the D-base site-specific allometry indicated that size dependency (i.e., regression slope) differed for stem mass. Besides, needle and coarse root mass for a given size (i.e., regression intercept) differed significantly among the four stands. These facts implied that D-base regression model was reliable for biomass estimation by site-specific allometry, but was not suitable for developing general (i.e., site-common) allometry. Second, to examine carbon allocation pattern, we estimated each stand biomass by applying corresponding site-specific D-base allometry. Stand total biomass ranged from 8.6 to 33.1 Mg ha(-1), and aboveground-total/coarse root biomass ratio (i.e., T/R) ranged from 1.5 to 2.6. The variation was mainly due to trade-offs between stem and root biomass. Average T/R was about 2.3 that was calculated for some reported L. gmelinii and L. cajanderi stands (n = 16), including our four stands. This average T/R was extremely small in comparison to that (5.1) of Scots pine (Pinus sylvestris L.) stands on the non- or discontinuous permafrost regions in Siberia. This finding strongly suggested that the two Larix species invested annual carbon gains largely into root growth. We discussed its ecological implications in relation to stand structure and permafrost soil-N conditions in the larch taiga ecosystem. (c) 2005 Elsevier B.V. All rights reserved.

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Kyushu Res Ctr, Forestry & Forest Prod Res Inst, Kumamoto 8600862, Japan
Forestry & Forest Prod Res Inst, Tsukuba, Ibaraki 3058687, Japan
Ryukoku Univ, Fac Intercultural Commun, Otsu, Shiga 5202194, Japan
Russian Acad Sci, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Biol Problems Cryolithozone, Yakutsk 677891, Russia
Sakha Minist Nat Protect, Yakutsk 67000, Russia
Tohoku Res Ctr, Forestry & Forest Prod Res Inst, Morioka, Iwate 0200122, Japan
Hokkaido Univ, Boreal Forest Conservat Studies, Sapporo, Hokkaido 0600809, Japan

Доп.точки доступа:
Kajimoto, T...; Matsuura, Y...; Osawa, A...; Abaimov, A.P.; Zyryanova, O.A.; Isaev, A.P.; Yefremov, D.P.; Mori, S...; Koike, T...

[Text] / K. . Mokany, R. J. Raison, A. S. Prokushkin // Glob. Change Biol. - 2006. - Vol. 12, Is. 1. - P84-96, DOI 10.1111/j.1365-2486.2005.001043.x. - Cited References: 39 . - 13. - ISSN 1354-1013РУБ Biodiversity Conservation + Ecology + Environmental Sciences

Аннотация: One of the most common descriptors of the relationship between root and shoot biomass is the root : shoot ratio, which has become a core method for estimating root biomass from the more easily measured shoot biomass. Previous reviews have examined root : shoot ratio data, but have only considered particular vegetation types and have not always critically reviewed the data used. Reliable root : shoot ratios are needed for a wide range of vegetation types in order to improve the accuracy of root biomass estimates, including those required for estimating the effects of land management and land use change in National Greenhouse Gas Inventories. This study reviewed root : shoot ratios in terrestrial biomes. A key facet of our analysis was a critical methodological review, through which unreliable data were identified and omitted on the basis of specific criteria. Of the 786 root : shoot ratio observations collated, 62% were omitted because of inadequate or unverifiable root sampling methods. When only the reliable data were examined, root : shoot ratios were found to be negatively related to shoot biomass, mean annual precipitation, mean annual temperature, forest stand age, and forest stand height. Although a single allometric equation derived in this study reliably predicted root biomass from shoot biomass for forests and woodlands, in general, the use of vegetation-specific root : shoot ratios were found to be a more accurate method for predicting root biomass. When the root : shoot ratio data collated here were applied to an analysis of the global carbon budget, there was a 50% increase in estimated global root carbon stock, and a 12% increase in estimated total carbon stock of terrestrial vegetation. The use of the vegetation-specific root : shoot ratios presented in this study is likely to substantially improve the accuracy of root biomass estimates for purposes such as carbon accounting and for studies of ecosystem dynamics.

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Cooperat Res Ctr Greenhouse Accounting, Canberra, ACT 2601, Australia
CSIRO Forestry & Forest Prod, Kingston, ACT 2604, Australia
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

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Mokany, K...; Raison, R.J.; Prokushkin, A.S.

[Text] / M. V. Bryukhanova [et al.] // Russ. J. Ecol. - 2013. - Vol. 44, Is. 5. - P361-366, DOI 10.1134/S1067413613050044. - Cited References: 34. - This study was supported by the SNSF SCOPES Program (project no. IZ73Z0_128035/1), RF President Grant for Young Scientists (no. MK-5498.2012.4), Russian Foundation for Basic Research (project no. 12-04-00542-a), and Scientific School Support Program (project no. NSh-5327.2012.4). . - 6. - ISSN 1067-4136РУБ Ecology

Аннотация: Processes of xylem formation in Dahurian larch have been studied at three sites differing in the hydrothermal regime of soils in the permafrost zone of Middle Siberia. It has been found that the start and end dates of different phases of tree ring formation may differ between the sites by up to 14 days, depending on site conditions. The data obtained contribute to knowledge of possible changes in larch forest phytomass production and provide the possibility of predicting its dynamics under conditions of climate change.

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[Bryukhanova, M. V.
Kirdyanov, A. V.
Prokushkin, A. S.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Silkin, P. P.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Kirdyanov, Alexander V.; Кирдянов, Александр Викторович; Prokushkin, Anatoly S.; Прокушкин, Анатолий Станиславович; Bryukhanova, M. V.; Брюханова, Марина Викторовна; Silkin, P.P.; SNSF SCOPES Program [IZ73Z0_128035/1]; RF President Grant for Young Scientists [MK-5498.2012.4]; Russian Foundation for Basic Research [12-04-00542-a]; Scientific School Support Program [NSh-5327.2012.4]

[Text] / T. T. Efremova, A. F. Avrova, S. P. Efremov // Contemp. Probl. Ecol. - 2013. - Vol. 6, Is. 5. - P569-577, DOI 10.1134/S199542551305003X. - Cited References: 21. - This work was supported by the Russian Foundation for Basic Research, project no. 08-04-92501 . - 9. - ISSN 1995-4255РУБ Ecology

Аннотация: There are six morphogenetic types of forest ground litter in the gradient of big grass-sphagnous-dead litter marsh birch forest: deeply degraded litter, half degraded litter, rhizomatous litter (coarsely degraded), peaty litter, turfy-formed litter, and turfy litter. The specificity of their biochemical transformations is caused by the accumulation of humic acids (HA), especially of the first fraction (HA-1), alongside the relatively steady background formation of fulvic acids. The C/N value suggests that the intensity of HA-1 formation is closely associated with the biological activity of the substrate. However, the indistinct difference of these parameters in the forestry-morphological types of litters limits their diagnostic reliability. Grouped biochemical types of litters, such as "soft" (half- and deeply degraded), "intermediate" (rhizomatous, peaty and turfy-formed), and "coarse" (mossy), are considerably discriminated by both the C/N ratio (20, 30, 40) and the level of HA-1 (14, 10, and 6%) respectively.

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[Efremova, T. T.
Avrova, A. F.
Efremov, S. P.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Efremova, T. T.; Avrova, A. F.; Аврова, Ада Федоровна; Efremov, S. P.; Russian Foundation for Basic Research [08-04-92501]

[Text] / O. V. Menyailo [et al.] // Biol. Fertil. Soils. - 2003. - Vol. 38, Is. 1. - P1-9, DOI 10.1007/s00374-003-0631-4. - Cited References: 23 . - 9. - ISSN 0178-2762РУБ Soil Science

Аннотация: Little information is available about the factors controlling soil C and N transformations in natural tropical forests and tree-based cropping systems. The aim of this work was to study the effects of single trees on soil microbiological activities from plantations of timber and non-timber species as well as species of primary and secondary forests in the Central Amazon. Soil samples were taken in the primary forest under Oenocarpus bacaba and Eschweilera spp., in secondary regrowth with Vismia spp., under two non-timber tree species (Bixa orellana L. and Theobroma grandiflorum Willd.), and two species planted for wood production (Carapa guianensis Aubl. and Ceiba pentandra). In these soils, net N mineralization, net nitrification, denitrification potential, basal and substrate-induced respiration rates were studied under standardized soil moisture and temperature conditions. Individual tree species more strongly affected N transformations, particularly net nitrification, than C respiration. Our results suggest that soil C respiration can be affected by tree species if inorganic N becomes a limiting factor. We found a strong correlation among almost all microbiological processes suggesting close inter-relationship between C and N transformations in the studied soils. Correlation analysis between soil chemical properties and microbiological activities suggest that such strong inter-relationships are likely due to competition between the denitrifying and C-mineralizing communities for NO3-, which might be an important N source for the microbial population in the studied soils.

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Russian Acad Sci, Inst Forest, Siberain Branch, Krasnoyarsk 660036, Russia
Univ Bayreuth, Inst Soil Sci & Soil Geog, D-95447 Bayreuth, Germany
EMBRAPA, BR-69011970 Manaus, Amazonas, Brazil

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Menyailo, O.V.; Lehmann, J...; Cravo, M.D.; Zech, W...

[Text] / I. D. Grodnitskaya, M. Y. Trusova // Eurasian Soil Sci. - 2009. - Vol. 42, Is. 9. - P1021-1028, DOI 10.1134/S1064229309090099. - Cited References: 27. - This work was supported by Interdisciplinary Integration Project no. 24 of the Siberian Branch of the Russian Academy of Sciences and by the Ministry of Education and Science of the Russian Federation (project no. 2.1.1/6611). . - 8. - ISSN 1064-2293РУБ Soil Science

Аннотация: Two types of bogs were studied in Tomsk oblast-Maloe Zhukovskoe (an eutrophic peat low-moor bog) and Ozernoe (an oligotrophic peat high-moor bog). The gram-negative forms of Proteobacteria were found to be dominant and amounted to more than 40% of the total population of the microorganisms investigated. In the peat bogs, the population and diversity of the hydrolytic microbial complex, especially of the number of micromycetes, were lower than those in the mineral soils. The changes in the quantitative indices of the total microbiological activity of the bogs were established. The microbial biomass and the intensity of its respiration differed and were also related to the depth of the sampling. In the Zhukovskoe peat low-moor bog, the maximal biomass of heterotrophic microorganisms (154 mu g of C/g of peat) was found in the aerobic zone at a depth of 0 to 10 cm. In the Ozernoe bog, the maximal biomass was determined in the zone of anaerobiosis at a depth of 300 cm (1947 mu g of C/g of peat). The molecular-genetic method was used for the determination of the spectrum of the methanogens. Seven unidentified dominant forms were revealed. The species diversity of the methanogens was higher in the oligotrophic high-moor bog than in the eutrophic low-moor bog.

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[Grodnitskaya, I. D.] Russian Acad Sci, Siberian Branch, Inst Forestry, Krasnoyarsk 660036, Russia
[Trusova, M. Yu.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Trusova, M. Yu.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Grodnitskaya, I.D.; Trusova, M.Y.; Siberian Branch of the Russian Academy of Sciences [24]; Siberian Branch of the Russian Academy of Sciences; Ministry of Education and Science of the Russian Federation [2.1.1/6611]

[Text] / O. Masyagina [et al.] // Photosynth. Res. - 2016. - Vol. 130, Is. 1-3. - P267-274, DOI 10.1007/s11120-016-0250-1. - Cited References:14. - We would like to thank staff of laboratory of biogeochemical cycles in forest ecosystems at V.N. Sukachev Institute of Forest Siberian Branch, namely Tsukanov A.A., Timokhina A.V., Klimchenko A.V., Panov A.V. for the various technical assistance during fieldworks at Tura Station (Evenkia, Russian Federation). This work was partly supported by the Russian Foundation of Basic Research (Grant No 13-04-00659-a) and by the Russian Science Foundation (14-24-00113). . - ISSN 0166-8595. - ISSN 1573-5079РУБ Plant Sciences

Аннотация: This research is an attempt to study seasonal translocation patterns of photoassimilated carbon within trees of one of the high latitudes widespread deciduous conifer species Larix gmelinii (Rupr. Rupr). For this purpose, we applied whole-tree labeling by (CO2)-C-13, which is a powerful and effective tool for tracing newly developed assimilates translocation to tissues and organs of a tree. Experimental plot has been established in a mature 105-year-old larch stand located within the continuous permafrost area near Tura settlement (Central Siberia, 64A degrees 17'13aEuro(3)N, 100A degrees 11'55aEuro(3)E, 148 m a.s.l.). Measurements of seasonal photosynthetic activity and foliage parameters (i.e., leaf length, area, biomass, etc.), and sampling were arranged from early growing season (June 8, 2013; May 14, 2014) until yellowing and senescence of needles (September 17, 2013; September 14, 2014). Labeling by C-13 of the tree branch (June 2013, for 3 branch replicates in 3 different trees) and the whole tree was conducted at early (June 2014), middle (July 2014), and late (August 2013) phase of growing season (for different trees in 3 replicates each time) by three pulses [(CO2)max = 3000-4000 ppmv, (CO2)-C-13 (30 % v/v)]. We found at least two different patterns of carbon translocation associated with larch CO2 assimilation depending on needle phenology. In early period of growing season (June), C-13 appearing in newly developed needles is a result of remobilized storage material use for growth purposes. Then approximately at the end of June, growth processes is switching to storage processes lasting to the end of growing season.

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Держатели документа:
VN Sukachev Inst Forest SB RAS, Krasnoyarsk, Russia.
NRC Kurchatov Inst, Moscow, Russia.
SRC Planeta, Moscow, Russia.

Доп.точки доступа:
Masyagina, Oxana; Prokushkin, Anatoly; Kirdyanov, Alexander; Artyukhov, Aleksey; Udalova, Tatiana; Senchenkov, Sergey; Rublev, Aleksey; Russian Foundation of Basic Research [13-04-00659-a]; Russian Science Foundation [14-24-00113]

/ V. G. Soukhovolsky, Y. D. Ivanova // Zhurnal Obshchei Biol. - 2018. - Vol. 79, Is. 2. - С. 148-158. - Cited References:9 . - ISSN 0044-4596РУБ Biology

Аннотация: Novel approaches to description of ecosystem changes under the impact of contaminants, dependent on their local concentration and the impact duration, are considered. It is shown that, using quite simple assumptions about biotic effects of a contaminant, this process can be treated as an ecological analogue to phase transition of the second order. For the analysis and verification of the model proposed, the data on forest ecosystems in the vicinity of powerful point sources of contamination (copper-smelting plants) had been used.

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Держатели документа:
RAS, VN Sukachev Inst Forest, Siberian Branch, Academgorodok 50-28, Krasnoyarsk 660036, Russia.
RAS, Biophis Inst, Siberian Branch, Academgorodok 50-50, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Soukhovolsky, V. G.; Ivanova, Yu. D.