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

: материалы временных коллективов / G. Guggenberger [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. 75-84. - Библиогр. в конце ст.

УДК

502

Аннотация: The results of this study thus provides evidence that the BC stocks are strongly related to the OC stocks in general and to the environmental variables that control the OC stocks. A similar result was obtained by Glaser and Amelung for BC in North American native grassland soils. They concluded that the BC storage in soils is controlled by higher BC productiion at sites with high plant biomass and by shorter BC residence time in soils showing favourable conditions for OC decomposition. The data also show that if permafrost degradation is taking place by some kind of disturbance, in particular the bogs will loose BC to a large extent. It is proportionally even more pronounced than for OC in general. Hence, BC in permafrost soils is highly susceptible to permafrost thawing and cannot be considered as a refractory carbon species in such ecosystem. Also it is discussed another questions.

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

Доп.точки доступа:
Guggenberger, G.; Гугенбергер Г.; Rodionov, Andrej; Родионов Андрей; Grabe, Matthias; Грабе Матхиас; Kasansky, O.; Казанский О.; Shibistova, Ol'ga Borisovna; Шибистова, Ольга Борисовна
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: материалы временных коллективов / L. V. Mukhortova // Tree species effects on soils: implications for global change. - 2005. - С. 316-336. - Библиогр. в конце ст.
Аннотация: The forest floor (O horizon) is a major pool of organic matter in many forests, comprised of a wide range of materials that vary in chemistry and morphology. The processing of fresh detritus progresses with gradual degradation under the influence of biotic and abiotic factors, leading to decreasing particle size and carbon:nitrogen ratios. The carbon contained in annual litterfall inputs equaled 20- 26% of the totral forest floor C content in conifer plots, compared with 48 to 55% in the aspen and birch plots. This material remains in the O1 layer for 2 to 12 months. The Of layer comprises 47 to 85% of the total C content of the forest floor, with residence times of 0.5 to 5 years.

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Russian Acad Sci, Inst Forest, Siberian Branch : Krasnoyarsk 660036, Russia

Доп.точки доступа:
Мухортова, Людмила Владимировна
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: материалы временных коллективов / M. A. Korets [и др.] // Environmental change in Siberia: earth observation, field studies and modelling. - Dordrecht et. al. : Springer, 2010. - С. 3-19. - Библиогр. в конце ст.
Аннотация: Envisat-MERIS and SPOT Vegetation satelitte data were tested for estimation of vegetation cover disturbance caused by fire and industrial pollution in central and northern Siberia test sites, respectively. MERIS data were used to assess forest disturbance levels on burned sites in Angara region. Chlorophyll indexes (REP and MTCI) were found to allow identifying up to five forest disturbance levels due to high space-borne sensor resolution and sensitivity to chlorophyll content of vegetation. The current vegetation condition was assessed using MTCI index in the northern (Norilsk) test region. The lowest index values calculated for the most severely disturbed vegetation near Norilsk were found to correlate with sulphur concentrations in larch and spruce needles. Another approach to estimating spatial and temporal trends of vegetation condition used the 1998-2005 SPOT-Vegetation satellite data. The relationships obtained between MTCI, NDVI values, and forest mortality were based upon to map the 1998-2005 forest degradation zone dynamics in the northern test site.

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

Доп.точки доступа:
Korets, Mikhail Anatol'yevich; Корец, Михаил Анатольевич; Ryzhkova, Vera Alexandrovna; Рыжкова, Вера Александровна; Danilova, Irina Valer'yevna; Данилова, Ирина Валерьевна; Sukhinin, Anatoly Ivanovich; Сухинин, Анатолий Иванович; Bartalev, S.A.; Барталев С.А.

: материалы временных коллективов / E. G. Shvetsov, A. I. Sukhinin // Boreal forests in a changing world: challenges and needs for action: Proceedings of the International conference August 15-21 2011, Krasnoyarsk, Russia. - Krasnoyarsk : V.N. Sukachev Institute of forest SB RAS, 2011. - С. 179-181. - Библиогр. в конце ст.
Аннотация: Summarized results of long-term observations on the ecological estimation of Krasnoyarsk suburban pine and birch stands were presented. It was shown that complex of technogenic recreational loadings had caused weakening and degradation of suburban forest ecosystems. The electronic database of conditions of Krasnoyarsk forest-steppe phytocenoses in zone with and without intensive anthropogenic impacts was created.

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

Доп.точки доступа:
Skripalshchikova, Larisa Nikolayevna; Скрипальщикова, Лариса Николаевна; Stasova, Victoria Victorovna; Стасова, Виктория Викторовна; Zubareva, Ol'ga Nikolayevna; Зубарева, Ольга Николаевна

/ 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.

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[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.

/ O. . Shibistova [et al.] // PLoS One. - 2012. - Vol. 7, Is. 9. - Ст. e45540, DOI 10.1371/journal.pone.0045540. - Cited References: 87. - Financial support was given by the German Research Foundation (to G. G., DFG Gu 406/19-1). The funding agency had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. . - 11. - ISSN 1932-6203РУБ Multidisciplinary Sciences

Аннотация: Background: Anthropogenic disturbance of old-growth tropical forests increases the abundance of early successional tree species at the cost of late successional ones. Quantifying differences in terms of carbon allocation and the proportion of recently fixed carbon in soil CO2 efflux is crucial for addressing the carbon footprint of creeping degradation. Methodology: We compared the carbon allocation pattern of the late successional gymnosperm Podocarpus falcatus (Thunb.) Mirb. and the early successional (gap filling) angiosperm Croton macrostachyus Hochst. es Del. in an Ethiopian Afromontane forest by whole tree (CO2)-C-13 pulse labeling. Over a one-year period we monitored the temporal resolution of the label in the foliage, the phloem sap, the arbuscular mycorrhiza, and in soil-derived CO2. Further, we quantified the overall losses of assimilated C-13 with soil CO2 efflux. Principal Findings: C-13 in leaves of C. macrostachyus declined more rapidly with a larger size of a fast pool (64% vs. 50% of the assimilated carbon), having a shorter mean residence time (14 h vs. 55 h) as in leaves of P. falcatus. Phloem sap velocity was about 4 times higher for C. macrostachyus. Likewise, the label appeared earlier in the arbuscular mycorrhiza of C. macrostachyus and in the soil CO2 efflux as in case of P. falcatus (24 h vs. 72 h). Within one year soil CO2 efflux amounted to a loss of 32% of assimilated carbon for the gap filling tree and to 15% for the late successional one. Conclusions: Our results showed clear differences in carbon allocation patterns between tree species, although we caution that this experiment was unreplicated. A shift in tree species composition of tropical montane forests (e. g., by degradation) accelerates carbon allocation belowground and increases respiratory carbon losses by the autotrophic community. If ongoing disturbance keeps early successional species in dominance, the larger allocation to fast cycling compartments may deplete soil organic carbon in the long run.

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Держатели документа:
[Shibistova, Olga
Yohannes, Yonas
Boy, Jens
Guggenberger, Georg] Leibniz Univ Hannover, Inst Soil Sci, Hannover, Germany
[Shibistova, Olga] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia
[Yohannes, Yonas] Ethiopian Inst Agr Res, Addis Ababa, Ethiopia
[Richter, Andreas
Wild, Birgit
Watzka, Margarethe] Univ Vienna, Dept Chem Ecol & Ecosyst Res, Vienna, Austria

Доп.точки доступа:
Shibistova, O...; Yohannes, Y...; Boy, J...; Richter, A...; Wild, B...; Watzka, M...; Guggenberger, G...

[Text] / M. . Kawahigashi, A. . Prokushkin, H. . Sumida // Geoderma. - 2011. - Vol. 166, Is. 1. - P171-180, DOI 10.1016/j.geoderma.2011.07.027. - Cited References: 44. - This research was supported by the core to core program "Symptoms of Climate Change in Far-eastern Siberia", funded by the Japanese Society for Promotion of Science. The authors thank Alexander Kirdyanov, Tatiana Bugaenko, Svetlana Evgrafova for support in sample collection and preparation. . - 10. - ISSN 0016-7061РУБ Soil Science

Аннотация: To evaluate the effects of forest fire and post-fire stand recovery on the organic layer chemistry and solute release within mound and trough microrelief elements (termed earth hummock microtopography) that mainly distribute permafrost affected area, we chose five fire plots (larch forests burned in 1951, 1981, 1990, 1994 and 2005) paired with adjacent control plots in mature larch forests in Central Siberian permafrost terrain. We determined total carbon, nitrogen and ash content in solid organic soils, and analyzed total carbon, nitrogen, bases and major anions in water extracts. There was a significant correlation between water-extracted organic carbon (WEOC) and total carbon (kg m(-2)) in area basis, implying that the quantity of total carbon was a major factor in WEOC production. WEOC correlated negatively with pH, indicating strong control by organic horizons (organic solute leaching) on soil acidity and base cation dynamics. The sum of water extractable base cations was also correlated significantly to total carbon, indicating that cations can be released through organic matter decomposition. Organic horizons in troughs in burned plots released greater amounts of Ca, Mg and K than those in mounds, probably due to greater content of organic matter as a cation source. Anions including nitrate and phosphate and WEOC also accumulated in trough depressions, due probably to organic matter degradation. The contrasting distribution of solutes between mounds and troughs in burned plots seems to be controlled by organic horizon development via changes in microtopography after forest fires. (C) 2011 Elsevier B.V. All rights reserved.

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[Kawahigashi, Masayuki
Sumida, Hiroaki] Nihon Univ, Coll Bioresource Sci, Kanagawa 2520880, Japan
[Prokushkin, Anatoly] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

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Kawahigashi, M...; Prokushkin, A...; Sumida, H...

[Text] / O. A. Shapchenkova, A. A. Aniskina, S. R. Loskutov // Eurasian Soil Sci. - 2011. - Vol. 44, Is. 4. - P399-406, DOI 10.1134/S1064229311040090. - Cited References: 29. - This work was supported by Integration Project no. 23 (1.3) of the Siberian Branch of the Russian Academy of Sciences (Succession Changes in the Biodiversity in Technogenically Disturbed Ecosystems of Siberia). . - 8. - ISSN 1064-2293РУБ Soil Science

Аннотация: The thermal degradation of organic matter was studied in cryogenic soils with methods of thermal analysis: differential scanning calorimetry and thermogravimetry (DSC and TG, respectively). The DSC curves of most of the samples within the temperature range from 221-247A degrees C to 600A degrees C were characterized by the presence of one wide exothermic peak (at 311-373A degrees C) with a shoulder (or without it) on the descending branch at a temperature of about 400A degrees C. This was connected mostly with the destruction of thermolabile compounds (oligo- and polysaccharides) and with the oxidation of low-aromatic complexes of plant residues and humus substances. Two exothermic peaks at 337-373A degrees C and 448-492A degrees C were found for some samples from the organic horizons. The high-temperature peaks were caused by the thermal destruction of lignin. The fraction of the thermolabile organic matter of the soil (237-261aEuro broken vertical bar 331-377A degrees C) reached 59-73% in the organic and 52-59% in the organomineral and mineral horizons.

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Держатели документа:
[Shapchenkova, O. A.
Aniskina, A. A.
Loskutov, S. R.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Shapchenkova, O.A.; Aniskina, A.A.; Loskutov, S.R.

[Text] / H. . Flessa [et al.] // Glob. Change Biol. - 2008. - Vol. 14, Is. 9. - P2040-2056, DOI 10.1111/j.1365-2486.2008.01633.x. - Cited References: 68 . - 17. - ISSN 1354-1013РУБ Biodiversity Conservation + Ecology + Environmental Sciences

Аннотация: Terrestrial ecosystems in northern high latitudes exchange large amounts of methane (CH4) with the atmosphere. Climate warming could have a great impact on CH4 exchange, in particular in regions where degradation of permafrost is induced. In order to improve the understanding of the present and future methane dynamics in permafrost regions, we studied CH4 fluxes of typical landscape structures in a small catchment in the forest tundra ecotone in northern Siberia. Gas fluxes were measured using a closed-chamber technique from August to November 2003 and from August 2006 to July 2007 on tree-covered mineral soils with and without permafrost, on a frozen bog plateau, and on a thermokarst pond. For areal integration of the CH4 fluxes, we combined field observations and classification of functional landscape structures based on a high-resolution Quickbird satellite image. All mineral soils were net sinks of atmospheric CH4. The magnitude of annual CH4 uptake was higher for soils without permafrost (1.19 kg CH4 ha(-1) yr(-1)) than for soils with permafrost (0.37 kg CH4 ha(-1) yr(-1)). In well-drained soils, significant CH4 uptake occurred even after the onset of ground frost. Bog plateaux, which stored large amounts of frozen organic carbon, were also a net sink of atmospheric CH4 (0.38 kg CH4 ha(-1) yr(-1)). Thermokarst ponds, which developed from permafrost collapse in bog plateaux, were hot spots of CH4 emission (approximately 200 kg CH4 ha(-1) yr(-1)). Despite the low area coverage of thermokarst ponds (only 2.1% of the total catchment area), emissions from these sites resulted in a mean catchment CH4 emission of 3.8 kg CH4 ha(-1) yr(-1). Export of dissolved CH4 with stream water was insignificant. The results suggest that mineral soils and bog plateaux in this region will respond differently to increasing temperatures and associated permafrost degradation. Net uptake of atmospheric CH4 in mineral soils is expected to gradually increase with increasing active layer depth and soil drainage. Changes in bog plateaux will probably be much more rapid and drastic. Permafrost collapse in frozen bog plateaux would result in high CH4 emissions that act as positive feedback to climate warming.

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[Flessa, Heiner] Univ Gottingen, Buesgen Inst, D-37077 Gottingen, Germany
[Rodionov, Andrej] Univ Cottbus, Chair Soil Protect & Recultivat, D-03046 Cottbus, Germany
[Rodionov, Andrej
Guggenberger, Georg] Univ Halle Wittenberg, Inst Agr & Nutr Sci, D-06108 Halle, Germany
[Fuchs, Hans
Magdon, Paul] Univ Gottingen, Inst Forest Management, D-37077 Gottingen, Germany
[Shibistova, Olga
Zrazhevskaya, Galina
Mikheyeva, Natalia] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Kasansky, Oleg A.] SB RAS, Permafrost Inst Yakutsk, Field Stn Igarka, Igarka 663200, Russia
[Blodau, Christian] Univ Bayreuth, Dept Hydrol, D-95440 Bayreuth, Germany

Доп.точки доступа:
Flessa, H...; Rodionov, A...; Guggenberger, G...; Fuchs, H...; Magdon, P...; Shibistova, O...; Zrazhevskaya, G...; Mikheyeva, N...; Kasansky, O.A.; Blodau, C...

[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] / V. M. Yanovskii // Russ. J. Ecol. - 2005. - Vol. 36, Is. 3. - P205-208, DOI 10.1007/s11184-005-0060-8. - Cited References: 23 . - 4. - ISSN 1067-4136РУБ Ecology

Аннотация: Participation of the entomofauna in the succession of forest biogeocenoses is analyzed. In stable ecosystems, insects serve as a mechanism providing for Ion g-term ecological stability. In unstable ecosystems, their activities are essentially negative and cause ecosystem degradation.

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Russian Acad Sci, Siberian Div, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

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Yanovskii, V.M.

[Text] / O. N. Zubareva [et al.] // Russ. J. Ecol. - 2003. - Vol. 34, Is. 6. - P375-380, DOI 10.1023/A:1027356316112. - Cited References: 20 . - 6. - ISSN 1067-4136РУБ Ecology

Аннотация: In this study, we have analyzed the degradation of pretundra forests and distinguished the levels of pollution using ground-based and remote-sensing data. The study region is located in the area exposed to emissions from the Norilsk Mining and Smelting Works. The main components of emissions are sulfur dioxide, nitrogen oxide, and heavy metals. Currently, the zone of damaged forests extends for more than 200 km. The comparison of the zones of degradation of pretundra vegetation distinguished in satellite images with the results of ground-based observations yielded high similarity coefficients (0.73-0.83) of the Kappa statistics. The zones of vegetation state were classified by NDVI values. The images from the NOAA/AVHRR satellite may be used for delimiting the zones of vegetation degradation by the proposed method.

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Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Zubareva, O.N.; Skripal'shchikova, L.N.; Greshilova, N.V.; Kharuk, V.I.

[Текст] / V. D. Perevoznikova, O. N. Zubareva // Russ. J. Ecol. - 2002. - Vol. 33, Is. 1. - С. 1-6, DOI 10.1023/A:1013628002614. - Cited References: 24 . - 6. - ISSN 1067-4136РУБ Ecology

Аннотация: The influence of recreation activity on grass cover was studied in a herbaceous birch forest within a territory of city development. Effects of the activity depended on size and arrangement of recreation sites. It was found that most of the forest was at the second stage of degradation, while degradation of forest edges was considered as intermediate between the second and third stages. Forest edges and glade-clump communities play a particular role in maintaining the stability of recreational forests. These ecotones are both barriers preventing introduction of alien plant species into a cenosis and centers of dissemination of ruderal and meadow species.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Perevoznikova, V.D.; Zubareva, O.N.

[Text] / I. N. Tretyakova, E. V. Bazhina // Ekol. Bratisl. - 2000. - Vol. 19, Is. 3. - P280-294. - Cited References: 49 . - 15. - ISSN 1335-342XРУБ Ecology

Аннотация: Structure of crown and viability of generative organs of Siberian fir were studied in disturbed forest ecosystems near Baikal Lake. The crown structure changes in damaged trees: a zone of subapical drying appears and apical dominance is lost. Needle chlorosis and necrosis appear and proceed in sprouts of male sexualization. The tree top including the female generative organs does not show degradation symptoms during about 30 years and produces seed cones. Processes of degradation in male generative zone greatly influence on fir tree pollen. Pollen viability of fir trees varied from year to year in different trees but always pollen quality of trees growing in the Khamar-Daban Mts in the air pollution zone was more poor in comparison with the pollen of trees at die Baikal Lake shore. Tree pollen growing in the Khamar-Daban Mts germinates in vitro but pollen tubes are formed short and not viable. Seed quality of fir trees is very low, A lot of seeds are sterile. Empty seeds prevail. The formation of empty seeds was caused by the low pollen germination in ovules and as a whole absence of pollen in ovules. The high sterility of generative organs and especially of Abies sibirica pollen can limit gametic selection and decrease fir diversity in forest ecosystems near Baikal Lake.

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Держатели документа:
RAS, SB, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Tretyakova, I.N.; Bazhina, E.V.

[Text] / L. N. Skripalshchikova [et al.] // Biol. Bull. - 2009. - Vol. 36, Is. 5. - P524-531, DOI 10.1134/S106235900905015X. - Cited References: 36. - This study was supported by KKFN and the Russian Foundation for Basic Research, grant no. 05-04-97710 r-Enisey-a. . - 8. - ISSN 1062-3590РУБ Biology

Аннотация: The morphometric parameters of trunk tissues of Scotch pine in suburban pine forests of Krasnoyarsk are studied, which grow under the long-term impact of technogenic and recreational loads in comparison with the background. Technogenic and recreational loads decrease the intensity of work of the cambium, especially towards the xylem, its duration, the cell size, and the structure of storage tissues. In pine stands of the Krasnoyarsk forest-steppe, the effect of the complex of anthropogenic stressors is weakening and degradation of forest stands and inhibition of production process at the cell and tissue levels are taking place.

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Держатели документа:
[Skripalshchikova, L. N.
Stasova, V. V.
Perevoznikova, V. D.
Zubareva, O. N.] Russian Acad Sci, Sukachev Forestry Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Tatarintsev, A. I.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Skripalshchikova, L.N.; Stasova, V.V.; Perevoznikova, V.D.; Zubareva, O.N.; Tatarintsev, A.I.; KKFN; Russian Foundation for Basic Research [05-04-97710 r-Enisey-a.]

[Текст] / V. L. Koshkarova, A. D. Koshkarov // Geol. Geofiz. - 2004. - Vol. 45, Is. 6. - С. 717-729. - Cited References: 42 . - 13. - ISSN 0016-7886РУБ Geosciences, Multidisciplinary

Аннотация: On the basis of geochronological and palynological materials, 25 sections of Holocene deposits and soils of northern Central Siberia were studied by paleocarpological methods. Special attention was given to the reconstruction of the dynamics of speciation of forest cover in time and space. As a result, climatic and ecological settings have been dynamically portrayed for each kind of landscape, and quantitative parameters of paleoclimates have been calculated. The main peaks of climatic changes of the postglacial history have been detected in the ranges 8.5-8.0 ka (thermal maximum) and 2.5-2.0 ka (thermal minimum). Importantly, the thermal maximum is characterized by warming up by 3-9degreesC in winter and by 2-6degreesC in summer. The anomaly in moisture content was insignificant. In the Middle Holocene (6.5-5.0 ka), the positive temperature trend was kept, but it was accompanied by a nearly double increase in annual atmospheric wetting. During the Late Holocene cooling (2.5-2.0 ka), the negative temperature trend led to the degradation of forest vegetation which at that time remained only in the extreme south of the territory.

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Держатели документа:
Russian Acad Sci, Inst Forestry, Krasnoyarsk 660036, Russia
Krasnoyarsk State Teachers Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Koshkarova, V.L.; Koshkarov, A.D.

[Text] / T. T. Efremova [et al.] // J. Radioanal. Nucl. Chem. - 2003. - Vol. 256, Is. 1. - P143-148, DOI 10.1023/A:1023372630804. - Cited References: 15 . - 6. - ISSN 0236-5731РУБ Chemistry, Analytical + Chemistry, Inorganic & Nuclear + Nuclear Science & Technology

Аннотация: Biogeochemical migration of heavy metals in the course of marsh formation is mainly determined by physical-chemical processes, such as the oxidation-reduction zonality of the peatbog thickness and the state of humous substances (the quality of humus adsorptive barriers). In the process of peatbog formation V, U, Ta are the weakly captured elements while Mo is captured to a relatively higher extent. Elements as Ti and W are found in separate layers. No technogenic degradation of the marsh ecosystem in the Ob and Tom has been observed.

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Держатели документа:
RAS, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
RAS, Inst Chem Kinet & Combust, Siberian Branch, Novosibirsk 630090, Russia
Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Moscow Region, Russia

Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Koutsenogii, K.P.; Peresedov, V.F.

[Text] / T. T. Efremova [et al.] // J. Radioanal. Nucl. Chem. - 2001. - Vol. 247, Is. 2. - P419-424, DOI 10.1023/A:1006738609415. - Cited References: 15 . - 6. - ISSN 0236-5731РУБ Chemistry, Analytical + Chemistry, Inorganic & Nuclear + Nuclear Science & Technology

Аннотация: In a eutrophic marsh. Fe. Mn. Ni. and Co are the elements of moderate biological capture and Cr is the element of weak biological capture. Over the history of the peatbog formation migration of elements is determined by the oxidation-reduction zonality of the peatbog thickness, the quality of humous barriers. and the carbonate equilibrium in the stagnant waters. No technogenic degradation of the marshes in the southern taiga of Western Siberia has been detected.

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Держатели документа:
RAS, Siberian Branch, Inst Forest, Krasnoyarsk 660036, Russia
RAS, Siberian Branch, Inst Chem Kinet & Combust, Novosibirsk 630090, Russia
Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Moscow Region, Russia

Доп.точки доступа:
Efremova, T.T.; Efremov, S.P.; Koutsenogii, K.P.; Peresedov, V.F.

[Text] / N. S. Cho [et al.] // Holzforschung. - 2001. - Vol. 55, Is. 6. - P579-584, DOI 10.1515/HF.2001.094. - Cited References: 30 . - 6. - ISSN 0018-3830РУБ Forestry + Materials Science, Paper & Wood

Аннотация: The effects of pentachlorophenol (PCP) and 2-chlorophenol (2CP) on white rot fungi, Abortiporus biennis, Cerrena unicolor, Gloeophyllum odoratum, and Trametes versicolor were investigated. With the exception of C. unicolor and A. biennis, concentrations of PCP higher than 50 ppm inhibited fungal growth completely. However, extreme concentrations of PCP (500 ppm) caused a 61 % increase in growth of C. unicolor compared to the control culture within 14 days. When initial PCP concentrations were 50 ppm A. biennis and C. unicolor achieved, respectively, 87 % and 78 % of chlorophenol transformation within 3 days. However, when 2,5-dimethylaniline (0.2mM) was added to the C. unicolor culture, 98 % of PCP transformation was achieved after one hour. Under the same conditions, A. biennis transformed 44 % of PCP. Both chlorophenols are completely removed, when laccase activity reaches its maximum. In conclusion, among the four fungi investigated, C. unicolor and A. Biennis were very effective in transforming PCP and 2-CP. This biotransformation was greatly intensified by 2,5-dimethylaniline and accompanied by an increase in laccase activity.

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Держатели документа:
Chungbuk Natl Univ, Sch Forest Resources, Cheongju 361763, South Korea
Korea Natl Univ Educ, Dept Biol Educ, Chungbuk 363791, South Korea
Russian Acad Sci, Inst Forest, Krasnoyarsk 660036, Russia
Kyushu Univ, Dept Forest Resources Sci, Fukuoka 8112415, Japan
Marie Curie Sklodowska Univ, Dept Biochem, PL-20031 Lublin, Poland

Доп.точки доступа:
Cho, N.S.; Nam, J.H.; Park, J.M.; Koo, C.D.; Lee, S.S.; Pashenova, N...; Ohga, S...; Leonowicz, A...

[Text] / O. N. Voinova [et al.] // Appl. Biochem. Microbiol. - 2009. - Vol. 45, Is. 4. - P384-388, DOI 10.1134/S0003683809040061. - Cited References: 21. - This study was supported by the Ministry of Education and Science of the Russian Federation and the U.S. Civilian Research and Development Foundation grant no. P1Me002), joint program of the Russian Foundation for Basic Research and the Krasnoyarsk Krai Science Foundation (project no. 07-08-96800- r_yenisei_a), the Krasnoyarsk Krai Science Foundation (project no. 18G142), and the Russian Science Support Foundation. . - 5. - ISSN 0003-6838РУБ Biotechnology & Applied Microbiology + Microbiology

Аннотация: The possibility of use of polyhydroxyalkanoates (PHAs), biodegradable microbial polyesters, as a carrier for pesticides (alpha-hexachlorcyclohexane and lindane) for targeted and controlled delivery of these compounds to soil was investigated. The kinetics of polymer degradation and the dynamics of pesticide release from the extended-release formulations was studied. It is shown that pesticides embedded in a degradable polymer (PHA) carrier are released gradually and slowly, without surges, as the polymer is degraded by the soil micro-flora. The microbial soil component actively responded to the addition of the polymer as an additional nutrient substrate: the latter was degraded and then utilized. The rate of the pesticide release to the soil can be regulated by varying the polymer-pesticide ratio.

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Держатели документа:
[Voinova, O. N.
Kalacheva, G. S.] Akademgorodok, Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
[Volova, T. G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Grodnitskaya, I. D.] Akademgorodok, Russian Acad Sci, Siberian Branch, Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Voinova, O.N.; Kalacheva, G.S.; Grodnitskaya, I.D.; Volova, T.G.; Ministry of Education and Science of the Russian Federation; U.S. Civilian Research and Development Foundation [P1Me002]; Russian Foundation for Basic Research; Krasnoyarsk Krai Science Foundation [07-08-96800- r_yenisei_a, 18G142]; Russian Science Support Foundation