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

: 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 / С. Г. Прокушкин [и др.] // Известия РАН. Серия биологическая. - 2010. - № 1. - С. 95-104. - Библиогр. в конце ст.
   Перевод заглавия: Succession-driven transformation of plant and soil cover on solifluction sites in the permafrost zone of central Evenkia
Аннотация: Приведены данные о степени повреждения солифлюкциями растительного и почвенного покрова и их регенерации в криолитозоне Центральной Эвенкии в зависимости от длительности постсолифлюкционного периода. Отмечена роль формирующейся растительности в накоплении биогенных элементов и почвообразовании. Для вновь формирующихся почв на солифлюкционных площадях в криолитозоне Средней Сибири характерна высокая концентрация подвижных соединений фосфора, что является одной из основных их особенностей.

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

Доп.точки доступа:
Прокушкин, Станислав Григорьевич; Prokushkin, Stanislav Grigor'yevich; Бугаенко, Татьяна Николаевна; Bugaenko, Tat'yana Nikolayevna; Прокушкин, Анатолий Станиславович; Prokushkin, Anatoly Stanislavovich; Шкикунов, Виктор Геннадьевич; Shkikunov, Viktor Gennad'yevich

: материалы временных коллективов / V. I. Kharuk [и др.] // Environmental change in Siberia: earth observation, field studies and modelling. - Dordrecht et. al. : Springer, 2010. - С. 115-132. - Библиогр. в конце ст.
Аннотация: The tree response to climate trends is most likely observable in the forest-tundra ecotone where temperature limits tree growth. Here we show that trees in the forest-tundra ecotone of the mid of the south Siberian Mountains responded strongly to wasrmer temperatures during the past two decades. There was a growth increment increase, stand densification, regeneration propogation into the alpine tundra, and transformation of prostrate Siberian pine, larch and fir into another arboreal forms.

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

Доп.точки доступа:
Kharuk, Vyacheslav Ivanovich; Харук, Вячеслав Иванович; Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Im, Sergey Tkhekdyeyevich; Им, Сергей Тхекдеевич

: материалы временных коллективов / V. I. Kharuk, S. T. Im, M. L. Dvinskaya // 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. 219-222. - Библиогр. в конце ст.
Аннотация: Warming induced (1) tree upward and northward migration and (2) krummholz transformation in alpine and northern ecotones, (3) a "dark needle conifers (DNC)" migration within "mixed taiga - zone of larch dominance" ecotone, (4) growth increment increase and stand denisification, (4) DNC proportion increase, which should lead an albedo decrease, amplifying warming at local scale. Observed radial and apical growth increment increases were correlated with both, air temperatures and atmospheric CO2 concentration increases.

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

Доп.точки доступа:
Im, Sergey Tkhekdyeyevich; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав Иванович

: материалы временных коллективов / V. I. Kharuk, M. Dvinskaya, S.T. Im, K. Ranson // Arctic, Antarctic and Alpine Research. - 2011. - Vol. 43, № 4. - С. 593-600. - Библиогр. в конце ст.
Аннотация: Trees in the southern Siberian Mountains forest-tundra ecotone have considerably increased their radial and apical growth increments during the last few decades. This leads to the widespread vertical transformation of mat and prostrate krummholz forms of larch (Larix sibirica Ledeb) and Siberian pine (Pinus sibirica Du Tour). An analysis of the radial growth increments showed that these transformations began in the mid-1980s. Larch showed a greater resistance to the harsh alpine environment and attained a vertical growth form in areas where Siberian pine is still krummholz and etc.

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

Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Im, Sergey Tkhekdyeyevich; Им, Сергей Тхекдеевич; Харук, Вячеслав Иванович
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/ 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.

/ V. V. Furyaev [et al.] // Contemp. Probl. Ecol. - 2013. - Vol. 6, Is. 2. - P156-161, DOI 10.1134/S1995425513020042. - Cited References: 10 . - 6. - ISSN 1995-4255РУБ Ecology

Аннотация: An analysis of information on the groundwater dynamics, frequency of fire events, and postfire progressive-age stages of vegetation in the swamp-forest ecosystems of the southern taiga and forest-steppe zone of the West Siberian Plain has shown that fire events are a permanent factor that controls the scales and dynamics of the forest and swamp formation processes under these specific conditions in the modern era. The greatest influence on the dynamics of ecosystems is exerted by the frequency of fires. The scope and depth of the transformation of swamp ecosystems affected by the pyrogenic factor are due to their environmental regimes and have their own properties in different landscapes.

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[Furyaev, V. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Zabolotskiy, V. I.] Adm Fed Serv Supervis Nat Resource Usage Altai Kr, Krasnoyarsk, Russia

Доп.точки доступа:
Furyaev, V.V.; Zabolotskiy, V.I.; Samsonenko, S.D.; Chernykh, V.A.

/ M. D. Evdokimenko // Eurasian Soil Sci. - 2013. - Vol. 46, Is. 2. - P117-126, DOI 10.1134/S106422931302004X. - Cited References: 21 . - 10. - ISSN 1064-2293РУБ Soil Science

Аннотация: Pyrogenic transformations of the physical state of cryogenic soils in the southern and middle taiga were investigated. The long-term dynamics of the microclimate on burns and the soil temperature and moisture to the depth of 120 cm were studied. Data on the postfire restoration of the ground cover are presented. Experiments on artificial sprinkling of burned areas differing in the degree of the burning out of the forest litter, the slope gradient, etc., have been performed. An experimental model demonstrating the relationships between the surface runoff and five environmental factors has been proposed. The pyrogenic destruction of the ground cover and the lower phytocenosis layers was accompanied by significant disturbances of the microclimate and anomalous thawing of the permafrost on the burns. In the pine stand on the colluvial fan after the intense fire, the soil temperature at the depth of 10 cm ( in the summer) exceeded the control value by 3-5 degrees C; in the larch forest on the southern slope of the Stanovoi Ridge, it increased by 1.5-2.0 times after the fire of medium intensity. On the mountain slopes, the surface runoff was significantly intensified, which resulted in drastic environmental and silvicultural consequences.

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

Доп.точки доступа:
Evdokimenko, M.D.

/ I. D. Grodnitskaya [et al.] // Eurasian Soil Sci. - 2013. - Vol. 46, Is. 1. - P61-73, DOI 10.1134/S1064229313010043. - Cited References: 39. - This work was supported by the Russian Foundation for Basic Research (project nos. 09-04-01380-a, 11-05-00374-a, and 11-04-01884-a) and by the Ministry of Education and Science of the Russian Federation (project no. 2.1.1/6611). . - 13. - ISSN 1064-2293РУБ Soil Science

Аннотация: The microbial activity of peat soils was studied in boggy larch forests and in an oligo-mesotrophic bog in the basins of the Kochechum and Nizhnaya Tunguska rivers (central Evenkia). It was found that the organic matter transformation in the peat soils of all the plots is mainly performed by oligotrophic bacteria composing 88-98% of the total bacterial complex. The major contribution to the organic matter destruction belonged to the heterotrophic microorganisms, the activity of which depended on the permafrost depth and the soil temperature, the soil acidity, and the botanical composition of the peat. Peat soils were characterized by different activities as judged from their microbiological and biochemical parameters. The functioning of microbial communities in the studied ecotopes of the permafrost zone was within the range of natural variations, which pointed to their ecological stability.

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[Grodnitskaya, I. D.
Karpenko, L. V.
Knorre, A. A.
Syrtsov, S. N.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Grodnitskaya, I.D.; Karpenko, L.V.; Knorre, A.A.; Syrtsov, S.N.

/ Y. N. Krasnoshchekov, Y. S. Cherednikova // Eurasian Soil Sci. - 2012. - Vol. 45, Is. 10. - P929-938, DOI 10.1134/S1064229312100055. - Cited References: 24. - This work was supported by the Russian Foundation for Basic Research (project no. 08-04-00027). . - 10. - ISSN 1064-2293РУБ Soil Science

Аннотация: The results of experimental investigations of the postpyrogenic dynamics of the widespread rawhumus podzols under Pinus sibirica forests in the southern Lake Baikal basin are discussed. Ground fires transform the diagnostic surface organic soil horizons into organic pyrogenic horizons (Opir, OL/Opir, and AOpir). The adverse effect of ground fires of different intensities on the changes in the reserves, the fractional composition of the litters, and the chemical composition of the organic horizons is shown. The soils of dark coniferous forests are inclined to long-lasting restoration. The Pinus sibirica regrowth under the canopy of deciduous species serves as the basis for the restoration of native stands and the formation of the soils characteristic of the southern part of the Lake Baikal basin.

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Держатели документа:
[Krasnoshchekov, Yu. N.
Cherednikova, Yu. S.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Krasnoshchekov, Y.N.; Cherednikova, Y.S.

/ A. V. Bogorodskaya [et al.] // Eurasian Soil Sci. - 2012. - Vol. 45, Is. 5. - P521-531, DOI 10.1134/S106422931205002X. - Cited References: 46 . - 11. - ISSN 1064-2293РУБ Soil Science

Аннотация: The quantitative and functional responses of soil microbial cenoses in the forest-tundra zone to pollution have been studied in the area exposed to emissions from the Norilsk Mining and Metallurgical Works. The strongest structural and functional disturbances of the soil biota have been recorded on the plots with completely destroyed vegetation. A decrease in the content of microbial carbon and an elevated respiration rate in the technogenically transformed soils provide evidence for the functioning of the microbial communities under stress caused by the continuous input of aggressive pollutants. The degree of transformation and the contents of technogenic elements (Ni, Cu, Co, Pb, and S) in the organic horizons of the forest-tundra soils are the major factors affecting the development and functioning of the soil microbial cenoses.

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Держатели документа:
[Bogorodskaya, A. V.
Ponomareva, T. V.
Shapchenkova, O. A.
Shishikin, A. S.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Bogorodskaya, A.V.; Ponomareva, T.V.; Shapchenkova, O.A.; Shishikin, A.S.

/ L. S. Shugalei, V. V. Chuprova // Eurasian Soil Sci. - 2012. - Vol. 45, Is. 3. - P246-256, DOI 10.1134/S1064229312030106. - Cited References: 30. - This work was supported by the Russian Foundation for Basic Research (project Siberia no. 09-04-98013). . - 11. - ISSN 1064-2293РУБ Soil Science

Аннотация: The soil formation was studied in the 21- to 35-year-old pine plantations created on the overburden dumps of the Nazarovskaya Depression without applying the material of the humus horizon. The surface technogenic formations under the pine plantations belong to the group of naturfabricats (surface formations devoid of the humus horizon and composed of natural substrate). The morphological characteristics, bulk chemical and particle-size compositions, and labile properties of the soils indicate that the accumulation and transformation of organic matter are dominant processes in the artificially planted forests. The accumulation of organic residues and destruction and humification are tightly related to the environmental conditions transformed by the technogenesis and conceal other processes forming the soil profiles. Quasizems created for agricultural production purposes were the objects of the study. They were formed by covering the technically planned overburden rocks with the material of humus layers. The thickness of the humus horizons of the quasizems varies greatly (25-64%); the variation of the humus reserves in them is 34-122%. Middle-profile horizons have not been formed by the present time.

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[Shugalei, L. S.] Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
[Shugalei, L. S.
Chuprova, V. V.] Krasnoyarsk State Agrarian Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Shugalei, L.S.; Chuprova, V.V.

[Text] / G. G. Polyakova, V. V. Stasova, N. V. Pashenova // Russ. J. Plant Physiol. - 2011. - Vol. 58, Is. 5. - P819-827, DOI 10.1134/S1021443711050177. - Cited References: 23. - This work was supported by the Russian Foundation for Basic Research, project no. 09-04-09030. . - 9. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Ophiostomatoid fungi colonize the conducting tissues of conifer stems, the phloem and the xylem. These pathogenic fungi penetrate into the stem through injuries made by xylophagous insects vectoring these pathogens. In this study the response of the phloem of Scotch pine (Pinus sylvestris L.) to wounding (treatment 1) was compared with the response to wounding combined with application of high-molecular-weight compounds isolated from the mycelium of the ophiostomatoid fungus Ceratocystis laricicola Redfern & Minter (treatment 2). Both treatments induced the appearance of necrosis in the inner bark, the formation of periderm separating living and dead tissues, and formation of the callus alongside the wound perimeter. In addition, the bark accumulated lignin, bound proanthocyanidins, and resins, with a parallel decrease in the content of free proanthocyanidins, low-molecular-weight carbohydrates, and non-lignin components of the cell wall (P > 0.95). The size of necrotic spots, as well as changes in the content of most substances, were significantly higher in the treatment 2 than in the treatment 1 (P > 0.95). The accumulation of lignin in cell walls of phloem sieve cells was delayed in the treatment 2 as compared with that in the treatment 1. This suggested that the mycelial extract temporarily inhibited lignification at the early stage of the wound response. This disturbance of the cell wall protective transformation led to the hypothesis that the fungal suppressors retard the repair of inner bark injured by insects, thereby favoring the invasion of conifer tissues by ophiostomatoid fungi.

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[Polyakova, G. G.
Stasova, V. V.
Pashenova, N. V.] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Polyakova, G.G.; Stasova, V.V.; Pashenova, N.V.

[Text] / P. A. Tarasov [et al.] // Eurasian Soil Sci. - 2011. - Vol. 44, Is. 7. - P731-738, DOI 10.1134/S1064229311070131. - Cited References: 38 . - 8. - ISSN 1064-2293РУБ Soil Science

Аннотация: Results of long-term studies in middle-taiga pine forests on sandy podzols after controlled surface fires are presented. The changes in the soil hydrothermal conditions caused by the pyrogenic transformation of the soil and the pyrogenic and postpyrogenic changes in other components of the forest biogeocenoses were revealed. Along with the general character of the changes in the soils' hydrothermal conditions, some differences in the degree of their manifestation between different regions due to the different fire intensities were revealed. It was concluded that the pyrogenic impact disturbed the existing material and energy exchange between the atmosphere and the soil, which is the main process of soil formation and development. Consequently, forest fires are a powerful and active factor of recent pedogenesis.

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[Tarasov, P. A.
Ivanov, V. A.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia
[Ivanova, G. A.
Krasnoshchekova, E. N.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Tarasov, P.A.; Ivanov, V.A.; Ivanova, G.A.; Krasnoshchekova, E.N.

[Text] / O. A. Shapchenkova, Y. N. Krasnoshchekov, S. R. Loskutov // Eurasian Soil Sci. - 2011. - Vol. 44, Is. 6. - P677-685, DOI 10.1134/S1064229311060123. - Cited References: 12. - This stugy was supported by the Russian Foundation for Basic Research project no. 08-04-00027. . - 9. - ISSN 1064-2293РУБ Soil Science

Аннотация: Experimental data on the effect of surface fires on the organic matter transformation in the gray-humus soils of pine forests were obtained in the southwestern part of the Baikal region. The application of methods of thermal analysis (such as differential scanning calorimetry and thermogravimetry) made it possible to obtain qualitative and quantitative information about the decomposition (oxidation) of the components of the soil organic matter upon their heating. It was found that the organic matter content in the soils subjected to fires of high intensity decreased by 1.9 times in comparison with the control. In the litter horizons of the undisturbed soils, thermolabile components (mostly, oligo- and polysaccharides) comprised 61% of the organic matter, and the portion of thermostable components (aromatic compounds) was 39%. A significant decrease in the content of thermolabile components and an increase in the content of thermostable components (up to 62%) were observed in the organic matter of the postpyrogenic forest litter as a result of the charcoal formation during the fire.

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Держатели документа:
[Shapchenkova, O. A.
Krasnoshchekov, Yu. N.
Loskutov, S. R.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Shapchenkova, O.A.; Krasnoshchekov, Y.N.; Loskutov, S.R.

[Text] / S. G. Prokushkin [et al.] // Biol. Bull. - 2011. - Vol. 38, Is. 2. - P183-190, DOI 10.1134/S1062359011020129. - Cited References: 36. - The work was supported by the Russian Foundation for Basic Research (projects nos. 08-04-0034-a, 10-04-00542-a, and 10-04-01003), Siberian Branch of the Russian Academy of Sciences (integration project no. 76), and Krasnoyarsk Regional Foundation for Support of Scientific and Technological Activities. . - 8. - ISSN 1062-3590РУБ Biology

Аннотация: The role of ground fires in transformation of organic substance in the ground cover of larch stands in the permafrost zone of Central Siberia was studied as well as the post-fire restoration dynamics of organic substance. Ground fires lead to is a considerable decrease in concentrations and resources of organic carbon and its individual fractions in the ground cover and their restoration takes many decades.

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[Prokushkin, S. G.
Bogdanov, V. V.
Prokushkin, A. S.
Tokareva, I. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Prokushkin, S.G.; Bogdanov, V.V.; Prokushkin, A.S.; Tokareva, I.V.

[Text] / A. V. Bogorodskaya, G. A. Ivanova, P. A. Tarasov // Eurasian Soil Sci. - 2011. - Vol. 44, Is. 1. - P49-55, DOI 10.1134/S1064229310071014. - Cited References: 36. - This work was supported by the Russian Foundation for Basic Research (project no. 07-04-00562) and by the International Science and Technology Center (project no. 3695). . - 7. - ISSN 1064-2293РУБ Soil Science

Аннотация: The postfire transformation of the functional activity of the microbial cenoses and the main soil properties under mixed larch forests were studied in the lower reaches of the Angara River. It was shown that the intensity of the postfire changes in the population density, biomass, and activity of the microorganisms in the dark podzolized brown forest soil depended on the degree of burning of the ground cover and the surface litter during the fire. The maximum effects of the fire on the microbial cenoses were observed in the litter and the upper 5-cm-thick layer of the dark-humus horizon in the areas of intense burning. The postfire restoration of the structural-functional activity of the microbial cenoses was determined by the degree of transformation of soil properties and by the postpyrogenic succession in the ground cover. The microbial complexes of the dark podzolized brown forest soils under mixed larch forests in the studied region restored their functional activity after the fires of different intensities quicker than the microbial cenoses of the sandy podzols in the pyrogenic lichen-green-moss pine forests of the same zone.

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Держатели документа:
[Bogorodskaya, A. V.
Ivanova, G. A.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
[Tarasov, P. A.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Bogorodskaya, A.V.; Ivanova, G.A.; Tarasov, P.A.

[Text] / A. V. Bogorodskaya [et al.] // Contemp. Probl. Ecol. - 2010. - Vol. 3, Is. 6. - P653-659, DOI 10.1134/S199542551006007X. - Cited References: 38. - We are grateful to National Aeronautic and Space Administration, The Land-Cover/Land-Use Change Science Team, Russian Foundation for Basic Research (program 07-04-00562), and International Science and Technology Center (program 3695) for financial support. . - 7. - ISSN 1995-4255РУБ Ecology

Аннотация: We studied post-fire transformations in functional characteristics of soil microbial communities and invertebrate complexes in the central-taiga pine forests of Central Siberia. The study revealed that fires of any severity reduce the density and diversity of soil invertebrates and adversely affect the structure and functioning of the sandy podzol microbial complexes. Post-fire recovery of the density and structure of soil invertebrate complexes and the functioning of sandy podzol microbial communities depend on fire duration and severity, as well as dynamics of hydrothermal and trophic properties of the pine forest soils.

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Держатели документа:
[Bogorodskaya, A. V.
Krasnoshchekova, E. N.
Bezkorovainaya, I. N.
Ivanova, G. A.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Bogorodskaya, A.V.; Krasnoshchekova, E.N.; Bezkorovainaya, I.N.; Ivanova, G.A.

[Text] / V. I. Kharuk [et al.] // Glob. Ecol. Biogeogr. - 2010. - Vol. 19, Is. 6. - P822-830, DOI 10.1111/j.1466-8238.2010.00555.x. - Cited References: 33. - This research was supported by the NASA Science Mission Directorate, Terrestrial Ecology Program, the Siberian Branch Russian Academy of Science Program no. 23.3.33, and grant no. MK-2497.2009.5. Thanks to Joanne Howl for edits of the manuscript. . - 9. - ISSN 1466-822XРУБ Ecology + Geography, Physical

Аннотация: Aim To evaluate the hypothesis that topographic features of high-elevation mountain environments govern spatial distribution and climate-driven dynamics of the forest. Location Upper mountain forest stands (elevation range 1800-2600 m) in the mountains of southern Siberia. Methods Archive maps, satellite and on-ground data from1960 to 2002 were used. Data were normalized to avoid bias caused by uneven distribution of topographic features (elevation, azimuth and slope steepness) within the analysed area. Spatial distribution of forest stands was analysed with respect to topography based on a digital elevation model (DEM). Results Spatial patterns in mountain forests are anisotropic with respect to azimuth, slope steepness and elevation. At a given elevation, the majority of forests occupied slopes with greater than mean slope values. As the elevation increased, forests shifted to steeper slopes. The orientation of forest azimuth distribution changed clockwise with increase in elevation (the total shift was 120 degrees), indicating a combined effect of wind and water stress on the observed forest patterns. Warming caused changes in the forest distribution patterns during the last four decades. The area of closed forests increased 1.5 times, which was attributed to increased stand density and tree migration. The migration rate was 1.5 +/- 0.9 m year-1, causing a mean forest line shift of 63 +/- 37 m. Along with upward migration, downward tree migration onto hill slopes was observed. Changes in tree morphology were also noted as widespread transformation of the prostrate forms of Siberian pine and larch into erect forms. Main conclusions The spatial pattern of upper mountain forests as well as the response of forests to warming strongly depends on topographic relief features (elevation, azimuth and slope steepness). With elevation increase (and thus a harsher environment) forests shifted to steep wind-protected slopes. A considerable increase in the stand area and increased elevation of the upper forest line was observed coincident with the climate warming that was observed. Warming promotes migration of trees to areas that are less protected from winter desiccation and snow abrasion (i.e. areas with lower values of slope steepness). Climate-induced forest response has significantly modified the spatial patterns of high-elevation forests in southern Siberia during the last four decades, as well as tree morphology.

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WOS,
Scopus

Держатели документа:
[Kharuk, Vyacheslav I.
Im, Sergey T.] Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Ranson, Kenneth J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[Vdovin, Alexander S.] Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Kharuk, V.I.; Ranson, K.J.; Im, S.T.; Vdovin, A.S.

[Text] / S. G. Prokushkin [et al.] // Biol. Bull. - 2010. - Vol. 37, Is. 1. - P80-88, DOI 10.1134/S1062359010010115. - Cited References: 24. - This study was supported by a grant from the Krasnoyarsk Regional Foundation of Science and the Russian Foundation for Basic Research (project no. 07-04-96812). . - 9. - ISSN 1062-3590РУБ Biology

Аннотация: The impact of solifluction (soil-sliding) on soil and vegetation cover as well as their restoration during the period after the disturbance was analyzed in the continuous permafrost region of Central Siberia (Central Evenkia). The role of vegetation invading after a disturbance is demonstrated for accumulation of biogenic elements and soil development.

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WOS,
Scopus

Держатели документа:
[Prokushkin, S. G.
Bugaenko, T. N.
Prokushkin, A. S.
Shikunov, V. G.] Russian Acad Sci, Sukachev Inst Forests, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Prokushkin, S.G.; Bugaenko, T.N.; Prokushkin, A.S.; Shikunov, V.G.