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

/ J.M. Styles et al, N. Tchebakova // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 768-783
Аннотация: The integrating properties of the atmospheric boundary layer allow the influence of surface exchange processes on the atmosphere to be quantified and estimates of large-scale fluxes of trace gases and plant isotopic discrimination to be made. Five flights were undertaken over two days in and above the convective boundary layer (CBL) in a vegetated region in central Siberia. Vertical profiles Of CO2 and H2O concentrations, temperature and pressure were obtained during each flight. Air flask samples were taken at various heights for carbon and oxygen isotopic analysis Of CO2. Two CBL budget methods were compared to estimate regional surface fluxes Of CO2 and plant isotopic discrimination against (CO2)-C-13 and (COO)-O-18-O-16. Flux estimates were compared to ground-based eddy covariance measurements. The fluxes obtained for CO2 using the first method agreed to within 10% of fluxes measured in the forest at the study site by eddy covariance. Those obtained from the second method agreed to within 35% when a correction was applied for air loss out of the integrating column and for subsidence. The values for C-13 discrimination were within the range expected from knowledge Of C-3 plant discriminations during photosynthesis, while the inferred O-18 discrimination varied considerably over the two-day period. This variation may in part be explained by the enrichment of chloroplast water during the day due to evaporation from an initial signature in the morning close to source water. Additional potential complications arising from the heterogeneous nature of the landscape are discussed.

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

Доп.точки доступа:
Styles et al, J.M.; Стайлес Дж.М.; Tchebakova, Nadezhda Mikhailovna; Чебакова, Надежда Михайловна

/ I. M. Danilin, S. K. Farber // Proceedings of IUFRO International Workshop on landscape ecology 2004: Conservation and management of fragmented forest landscapes, October 25-28, Tsukuba, Ibaraki, Japan. - Tsukuba : Forestry and Forest Products Research Institute, 2004. - С. 9-13

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

Доп.точки доступа:
Farber, Sergey Kimovich; Фарбер, Сергей Кимович; Данилин, Игорь Михайлович

: материалы временных коллективов / V. I. Kharuk // Water, air & soil pollution. - 1995. - Vol. 82, № 1-2. - С. 483-497. - Библиогр. в конце ст.
Аннотация: Our findings have shown that the spectral characteristics of aspen bark differ considerably from the "grey body" representations typically utilised in radiative transfer models. Also, since the bark and leaf canopy fractions have different C assimilation capacities, the partitioning of canopy Chl into leaf and bark strata should improve C assimilation estimates. Remote sensing technology must be relied upon, especially in vast and largely in accessible regions such as the boreal biome, for landscape- and regional-scale studies of C budgets. In these studies, estimates of forest productivity and C exchange currently rely on spectral indices obtained from remote satellite/aircraft sensors; these spectral ratios are used to indirectly estimate C assimilation through correlation with chlorophyll and photosynthetic capacity.

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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:
Kharuk, Vyacheslav Ivanovich; Харук Вячеслав Иванович
Имеются экземпляры в отделах:
Арх (04.05.2007г. (1 экз.) - Б.ц.) - свободны 1

: материалы временных коллективов / J. G. Goldammer, G. Hoffmann [и др.] // Пожары в лесных экосистемах Сибири: материалы Всероссийской конф. с межд. участием, 17-19 сентября 2008 г., Красноярск. - 2008. - С. 13-15. - Библиогр. в конце ст.
Аннотация: The use of fire as a key ecosystem driver in many disturbance shaped landscapes of Eurasian has modified ecosystems into significant cultural landscapes. In these ecosystems, people over time have played a significant role in creating, maintaining, expanding or changing the landscape components that now have high conservation value.

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

Доп.точки доступа:
Hoffmann, G.; Хоффманн Г.; Bruce, M.; Брюс М.; Verkhovets, Sergey Vladimirovich; Верховец, Сергей Владимирович; Kisilyakhov, Yegor Kirillovich; Кисиляхов, Егор Кириллович; Гольдаммер, Йоганн Георг Андреас

: сборник научных трудов / M. Ya. Antonovski, M. T. Ter-Mikaelian, V. V. Furyaev // A systems analysis of the global boreal forest. - Cambridge et al. : Cambridge University Press, 1992. - С. 373-403
Аннотация: This paper presents achievements in developing a spatial model of long-term forest fire dynamics. By the word "spatial" we denote a model that describes the dynamics of a large, non-homogenous (from the ecological viewpoint) forested territory, taking into account interractions between adjacent landscape units.

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

Доп.точки доступа:
Ter-Mikaelian, M.T.; Тер-Микаэлян М.Т.; Furyayev, Valentin Vasil'yevich; Фуряев, Валентин Васильевич; Антоновский М.Я.

: материалы временных коллективов / M. E. Konovalova, O. V. Drobushevskaya // 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. 135-138. - Библиогр. в конце ст.
Аннотация: There are analysis results of post-fire ecological recovery dynamics of subtiga forest on landscape and ecological basis. The unite scheme & temp seccession replacement including wildfire factor was elaborated. The correspondence between recovery dynamics temp and burn patch colonization type was estimated.

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

Доп.точки доступа:
Drobushevskaya, Ol'ga Vladimirovna; Дробушевская, Ольга Владимировна; Коновалова, Мария Евгеньевна

: материалы временных коллективов / E. N. Pal'nikova, V. Gr. Soukhovolsky // 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. 160-161. - Библиогр. в конце ст.
Аннотация: Synchronization of forest insects population dynamics has been studied. Cross-correlation function and coherence function of different types of forest insects at various test plots were culculated using the Statistica 6.0 program. Analysis of the statistical reability of the culculated performance was held, the dependence of the level of synchronization of population dynamics on the ecological properties of species and landscape characteristrics of plots were studied.

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

Доп.точки доступа:
Soukhovolsky, Vladislav Grigor'yevich; Суховольский, Владислав Григорьевич; Пальникова, Елена Николаевна

[Текст] = Determination of potential habitat types of plants using GIS : материалы временных коллективов / С. Д. Бабой // Исследование компонентов лесных экосистем Сибири: Материалы конференции молодых ученых, 5-6 апреля 2012 г. , Красноярск. - Красноярск : Институт леса им. В.Н. Сукачева СО РАН , 2012. - Вып.13. - С. 3-5. - Библиогр.: с. 5
Аннотация: Process of determination of potential habitats involves several steps: a) the choice of species, b) study of ecology of the species, c) entry into the GIS database on the occurrence of certain species in the landscape and ecological definitions (a series of forest type, forest type, the natural-ecological zone, etc.) or a point mapping of species (mainly for the endemics)

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

Доп.точки доступа:
Baboy Semyen Dmitriyevich

[Текст] = Monitoring of microclimatic and mesoclimatic conditions in Central Siberian middle taiga : материалы временных коллективов / Н. В. Сиденко // Исследование компонентов лесных экосистем Сибири: Материалы конференции молодых ученых, 5-6 апреля 2012 г. , Красноярск. - Красноярск : Институт леса им. В.Н. Сукачева СО РАН , 2012. - Вып. 13. - С. 44-46. - Библиогр. в конце ст.
Аннотация: In this study we present the analysis of meteorological data obtained during 2 years of measurements at ZOTTO observatory. It was found that continental polar air dominates in study area and results in the strong radiation cooling in winter time. The microclimatic features showed the continental conditions in the region. The wind rose demonstrated South-East wind direction as dominating which could be associated with influence of the Siberian High. Due to relatively high homogeneity of landscape in study region the analyzed data set of meteorological variables is valid for the tall tower footprint and will be used for further study of GHG's behavior over Central Siberian forest ecosystems.

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

Доп.точки доступа:
Sidenko N.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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Держатели документа:
[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.

/ T. A. Burenina, E. V. Fedotova, N. F. Ovchinnikova // Contemp. Probl. Ecol. - 2012. - Vol. 5, Is. 3. - P323-331, DOI 10.1134/S1995425512030031. - Cited References: 30 . - 9. - ISSN 1995-4255РУБ Ecology

Аннотация: On the basis of the concept of the effect of landscape structure on the water regime of a territory and on the remote sensing data for the basins of rivers on the northern macroslope of West Sayan, the land-scape hydrogeological classification of natural complexes was made and evaluation of their hydrological functions was carried out. Against the background of general altitudinal belt regularities, local features of the distribution of water balance characteristics were revealed.

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Держатели документа:
[Burenina, T. A.
Fedotova, E. V.
Ovchinnikova, N. F.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Burenina, T.A.; Fedotova, E.V.; Ovchinnikova, N.F.

[Text] / T. . Wallenius [et al.] // Int. J. Wildland Fire. - 2011. - Vol. 20, Is. 2. - P248-254, DOI 10.1071/WF10020. - Cited References: 43. - Aleksey Sadvordaev, Galina Zrazhevskaya, Toivo Haltia and Antti Lavikainen helped with the challenging arrangements and the field work. Oskar Ofluds Stiftelse, Nordenskiolds Samfundet and Ulla Wallenius funded the expedition to central Siberia. The Maj and Tor Nessling Foundation (grant number 2003064), Emil Aaltonen Foundation and Finnish Academy (grant number 121919) financed this long-duration study from field work to publication. . - 7. - ISSN 1049-8001РУБ Forestry

Аннотация: To study the poorly known fire history of Larix-dominated forest in central Siberia, we collected samples from 200 trees in 46 systematically located study plots. Our study area stretches similar to 90 km from north to south along the River Nizhnyaya Tunguska in northern Irkustk district. Cross-dated tree-ring chronology for all samples combined extended from the year 1360 AD to the present and included 76 fire years and 88 separate fire events. Average fire cycle gradually lengthened from 52 years in the 18th century to 164 years in the 20th century. During the same time, the number of recorded fires decreased even more steeply, i.e. by more than 85%. Fires were more numerous but smaller in the past. Contrary to expectations, climate change in the 20th century has not resulted in increased forest fires in this region. Fire suppression may have contributed to the scarcity of fires since the 1950s. However, a significant decline in fires was evident earlier; therefore an additional explanation is required, a reduction in human-caused ignitions being likely in the light of historical accounts.

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Держатели документа:
[Wallenius, Tuomo
Heikkinen, Juha] Finnish Forest Res Inst, Vantaa Res Unit, FI-01301 Vantaa, Finland
[Larjavaara, Markku] Smithsonian Trop Res Inst, Balboa, Ancon, Panama
[Shibistova, Olga] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia

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Wallenius, T...; Larjavaara, M...; Heikkinen, J...; Shibistova, O...

[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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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] / G. A. Ivanova [et al.] // Environ. Res. Lett. - 2010. - Vol. 5, Is. 1. - Ст. 15002, DOI 10.1088/1748-9326/5/1/015002. - Cited References: 35. - The authors gratefully acknowledge financial support for this research from the National Aeronautics and Space Administration (NASA), the Land Cover Land Use Change (LCLUC) Science Program, the Russian Academy of Sciences, Siberian Branch, and the Russian Fund of Fundamental Investigation. We would also like to acknowledge the skillful scientific translation services provided by Irina Savkina. . - 7. - ISSN 1748-9326РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Аннотация: Forest fires resulting from long periods of drought cause extensive forest ecosystem destruction and can impact on the carbon balance and air quality and feed back to the climate system, regionally and globally. Past fire frequency is reconstructed for Tuvan Scots pine stands using dendrochronology and statistics. Central Tuvan Scots pine ( Pinus sylvestris) stands are subject to annual fire regimes; however high intensity fires are rare but they are responsible for most of the damage. Low, medium, and high severity fires have shaped the multi-story Scots pine communities, locally and regionally. Fire type and frequency are directly related to weather and climate and are also dependent on anthropogenic influences. The primary dry period, which promotes fire ignition and spread, in Tuva occurs in April and May. In some years, the precipitation deficit combined with high air temperatures induces long periods of drought. Unlike the typical surface fire regime, forest fires that burn during these extreme droughts often become crown fires that result in substantial forest damage and carbon release. The mean fire interval (MFI) is found to be 10.4 years in Balgazyn stands, and the landscape-scale MFI is 22.4 years. High severity, stand-replacing crown fires have a longer MFI. The warmer and dryer weather that is predicted by global climate models is evident in Tuva, and we believe that these changes in weather and climate have resulted in increased fire intensity and severity, rather than fire frequency in the Tuvan region.

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Держатели документа:
[Ivanova, G. A.
Kukavskaya, E. A.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Ivanov, V. A.] Siberian State Technol Univ, Krasnoyarsk 660049, Russia
[Soja, A. J.] NASA, Langley Res Ctr, Natl Inst Aerosp, Hampton, VA 23681 USA

Доп.точки доступа:
Ivanova, G.A.; Ivanov, V.A.; Kukavskaya, E.A.; Soja, A.J.

[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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Держатели документа:
[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. V. Furyaev, V. I. Zabolotsky, I. G. Goldammer // Contemp. Probl. Ecol. - 2008. - Vol. 1, Is. 2. - P250-256, DOI 10.1134/S1995425508020124. - Cited References: 32 . - 7. - ISSN 1995-4255РУБ Ecology

Аннотация: Methodological aspects of investigation into the dynamics of pyrological regimes and their effect on natural ecosystems have been considered. It seems reasonable to combine different data on the history of forest fires in order to reveal the long-term dynamics of pyrological regimes. This allows one to eliminate certain disadvantages that are to some extent peculiar to separate methods. The dynamics of pyrological regimes at the main landscape stows in southern taiga of Siberian regions near the Yenisei over the last three centuries has been analyzed. The deviations of modem pyrological regimes from those in the past are quantitatively estimated. Probable ecological and forestry consequences of changes in pyrological regimes and possible ways to govern the pyrogenic factor for the purpose of stabilizing ecosystems are discussed.

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Держатели документа:
[Furyaev, V. V.
Zabolotsky, V. I.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Goldammer, I. G.] Max Planck Inst Chem, POB, D-79085 Freiburg, Germany

Доп.точки доступа:
Furyaev, V.V.; Zabolotsky, V.I.; Goldammer, I.G.

[Text] / A. . Rodionov [et al.] // Eur. J. Soil Sci. - 2007. - Vol. 58, Is. 6. - P1260-1272, DOI 10.1111/j.1365-2389.2007.00919.x. - Cited References: 44 . - 13. - ISSN 1351-0754РУБ Soil Science

Аннотация: Soils of the high latitudes are expected to respond sensitively to climate change, but still little is known about carbon and nitrogen variability in them. We investigated the 0.44-km(2) Little Grawijka Creek catchment of the forest tundra ecotone (northern Krasnoyarsk Krai, Russian Federation) in order (i) to relate the active-layer thickness to controlling environmental factors, (ii) to quantify soil organic carbon (SOC) and total nitrogen (NT) stocks, and (iii) to assess their variability with respect to different landscape units. The catchment was mapped on a 50 x 50 m grid for topography, dominant tree and ground vegetation, organic-layer and moss-layer thickness, and active-layer thickness. At each grid point, bulk density, and SOC and NT concentrations were determined for depth increments. At three selected plots, 2-m deep soil cores were taken and analysed for SOC, NT and C-14. A shallow active layer was found in intact raised bogs at plateaux situations and in mineral soils of north-northeast (NNE) aspect. Good drainage and greater solar insolation on the south-southwest (SSW) slopes are reflected in deeper active layers or lack of permafrost. Organic carbon stocks to a soil depth of 90 cm varied between 5 and 95 kg m(-2). The greatest stocks were found in the intact raised bogs and on the NNE slopes. Canonical correspondence analysis indicates the dominant role of active-layer thickness for SOC and NT storage. The 2-m soil cores suggest that permafrost soils store about the same amount of SOC from 90 to 200 cm as in the upper 90 cm. Most of this deep SOC pool was formed in the mid-Holocene (organic soils) and the late Pleistocene (mineral soils). Our results showed that even within a small catchment of the forest tundra, active-layer thickness and, hence, SOC and NT storage vary greatly within the landscape mosaic. This has to be taken into account when using upscaling methods such as remote sensing for assessing SOC and NT storage and cycling at a regional to continental level.

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Scopus

Держатели документа:
Univ Halle Wittenberg, Inst Agr & Ernahrungswissensch, D-06108 Halle, Germany
Univ Gottingen, Inst Bodenkunde & Waldernahrung, D-37077 Gottingen, Germany
Max Planck Inst Biogeochem, D-07745 Jena, Germany
SB RAS, Field Stn Igarka Permafrost Inst Yakutsk, Igarka 663200, Russia
SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Rodionov, A...; Flessa, H...; Grabe, M...; Kazansky, O.A.; Shibistova, O...; Guggenberger, G...

[Text] / V. I. Kharuk, M. L. Dvinskaya, K. J. Ranson // Russ. J. Ecol. - 2005. - Vol. 36, Is. 5. - P302-311, DOI 10.1007/s11184-005-0077-z. - Cited References: 23 . - 10. - ISSN 1067-4136РУБ Ecology

Аннотация: The periodicity of fires in larch forests of Evenkia and their relationship with landscape elements have been studied. Cross-sections with "burns" in them caused by past fires have been analyzed in 72 test plots; the fire chronology encompassed the period from the 15th to the 20th century. The between-fire intervals (BFIs) have been calculated by two methods: (1) on the basis of burns alone and (11) on the basis of burns and the start of growth of the new generation of larch after the earliest fire. The BFI depends on local orographic features; it is 86 +/- 11 (105 +/- 12), 61 +/- 8 (73 +/- 8), 139 +/- 17 (138 +/- 18), and 68 +/- 14 (70 +/- 13) years for northeastern slopes, southwestern slopes, bogs, and flatlands, respectively. The mean BFIs calculated by methods I and II are 82 +/- 7 and 95 +/- 7 years, respectively. The permafrost horizon rises at a mean rate of 0.3 cm per year after a forest fire. It has been shown that the number of fires regularly peaks at periods of 36 and 82 years. There is also a temporal trend in fire frequency: the mean BFI was approximately 100 years in the 19th century and 65 years in the 20th century.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

Доп.точки доступа:
Kharuk, V.I.; Dvinskaya, M.L.; Ranson, K.J.

[Text] / K. . Kovacs [et al.] // Earth Interact. - 2004. - Vol. 8. - Ст. 18. - Cited References: 28. - This work was funded by NASA's Office for Earth Sciences. Thanks to Marc Imhoff for access to DMSP stable lights data. We also thank the anonymous reviewers for their thoughtful suggestions. . - 25. - ISSN 1087-3562РУБ Geosciences, Multidisciplinary

Аннотация: Fires are a common occurrence in the Siberian boreal forest. The thermal anomalies product of the Terra/Moderate Resolution Imaging Spectroradiometer (MODIS) product suite is designed to detect thermal anomalies (i.e., hotspots or fires) on the Earth's surface. Many, but not all, of the hot spots detected by MODIS in Siberia are wild fires. Agricultural burning and industrial activities also contribute. Using MODIS data from the years 2001, 2002, and 2003 along with a geographical information system (GIS), the type, extent, and duration of hot spots were examined. In addition, high correlations were found between the number of fires and proximity to human activities. Different types of land-cover thermal anomalies were found to have a strong, positive correlation with some anthropogenic features, such as roads, human settlements, and mineral industry locations. The agricultural (r(2) = 0.95) and the forest (r(2) = 0.81) thermal anomalies had the highest positive correlation with proximity to roads. The correlation was stronger between burned forests and roads (r(2001)(2) = 0.81, r(2002)(2) = 0.90, r(2003)(2) = 0.88) than between any forested land and roads (r(2) = 0.52). The results indicate that forest fires tend to occur near agricultural fires (r(2001)(2) 0.93, r(2002)(2) = 0.87, r(2003)(2) = 0.94). Anthropogenic feature and land-cover thermal anomaly (LCTA) relationships tend to be stronger in a high fire year (2003) than in a low fire year (2001). This alone does imply causation, but might be an indicator of natural and anthropogenic factors acting together to shape where and when fires are burning. These findings have important implications for carbon and climate modelers wishing to use MODIS products to quantify and predict carbon storage and climate change.

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Держатели документа:
[Kovacs, Katalin] Sci Syst & Applicat Inc, Seabrook, MD 20706 USA
[Ranson, K. Jon] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[Sun, Guoqing] Univ Maryland, College Pk, MD 20742 USA
[Kharuk, Vlacheslav I.] Sukachev Inst Forest, Krasnoyarsk, Russia

Доп.точки доступа:
Kovacs, K...; Ranson, K.J.; Sun, G.Q.; Kharuk, V.I.; NASA's Office for Earth Sciences