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

: материалы временных коллективов / Artem Ivanovsky // Workshop on climate change, the tree growth response, and reconstruction of climate 25-29 January 2006, V.N. Sukachev Institute of Forest SB RAS, Krasnoyarsk, Russia. - Krasnoyarsk : V.N. Sukachev Institute of Forest SB RAS, 2006. - С. 33
Аннотация: 285 tree-ring chronologies were used for tree-ring modeling (biophysical VS-model). All chronologies are located in the Eurasian part of Russia. Due to limitations of the present meteorological network in this territory for use in spatial tree-ring modeling, monthly climatic data were obtained from the high spatial resolution climate dataset (Climatic Research Unit, UEA, Norwich, UK) for ieach site. Average monthly temperature and cumulative precipitation were converted into daily data using a technique created by author. These daily datasets were used by the VS-model.

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

Доп.точки доступа:
Ивановский, Артем Борисович

[Text] / E. . Kirik, T. . Yurgel'yan, D. . Krouglov // Cybern. Syst. - 2011. - Vol. 42, Is. 1. - P1-15, DOI 10.1080/01969722.2011.532636. - Cited References: 11 . - 15. - ISSN 0196-9722РУБ Computer Science, Cybernetics

Аннотация: A mathematical model of pedestrian movement on the basis of the stochastic cellular automata approach is proposed. A floor field (FF) model is taken as a basis model. The FF models imply that virtual people follow the shortest path strategy; meanwhile, they also follow the shortest time strategy. The focus of this study is mathematical formalization and model implementation of these features of pedestrian movement. Some results of the simulation are reported.

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Держатели документа:
[Kirik, Ekaterina
Krouglov, Dmitriy] Russian Acad Sci, Siberian Branch, Inst Computat Modeling, Krasnoyarsk 660036, Russia
[Kirik, Ekaterina
Yurgel'yan, Tat'yana] Siberian Fed Univ, Inst Math, Krasnoyarsk, Russia
[Krouglov, Dmitriy] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Akademgorodok, Russia

Доп.точки доступа:
Kirik, E...; Yurgel'yan, T...; Krouglov, D...

[Text] / N. N. Vygodskaya [et al.] // Environ. Res. Lett. - 2007. - Vol. 2, Is. 4. - Ст. 45033, DOI 10.1088/1748-9326/2/4/045033. - Cited References: 33 . - 7. - ISSN 1748-9326РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Аннотация: The climate system and terrestrial ecosystems interact as they change. In northern Eurasia these interactions are especially strong, span all spatial and timescales, and thus have become the subject of an international program: the Northern Eurasia Earth Science Partnership Initiative (NEESPI). Without trying to cover all areas of these interactions, this paper introduces three examples of the principal micrometeorological, mesometeorological and subcontinental feedbacks that control climate-terrestrial ecosystem interactions in the boreal zone of northern Eurasia. Positive and negative feedbacks of forest paludification, of windthrow, and of climate-forced displacement of vegetation zones are presented. Moreover the interplay of different scale feedbacks, the multi-faceted nature of ecosystems-climate interactions and their potential to affect the global Earth system are shown. It is concluded that, without a synergetic modeling approach that integrates all major feedbacks and relationships between terrestrial ecosystems and climate, reliable projections of environmental change in northern Eurasia are impossible, which will also bring into question the accuracy of global change projections.

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[Vygodskaya, N. N.] Jan Kochanowski Univ Humanities & Sci, Inst Geog, Sventokshistkaya Acad Poland, PL-25406 Kielce, Poland
[Groisman, P. Ya] Natl Climat Ctr, Asheville, NC 28801 USA
[Tchebakova, N. M.
Parfenova, E. I.] VN Sukachev Inst Forest, Siberian Branch Russian Acad Sci, Krasnoyarsk 660036, Russia
[Kurbatova, J. A.] Russian Acad Sci, AN Severtsov Inst Ecol & Evolut, Moscow 119071, Russia
[Panfyorov, O.] Univ Gottingen, Inst Bioclimatol, D-37077 Gottingen, Germany
[Sogachev, A. F.] Univ Helsinki, Dept Phys Sci, FI-00014 Helsinki, Finland

Доп.точки доступа:
Vygodskaya, N.N.; Groisman, P.Y.; Tchebakova, N.M.; Kurbatova, J.A.; Panfyorov, O...; Parfenova, E.I.; Sogachev, A.F.

[Text] / O. V. Menyailo, Y. N. Krasnoshchekov // Eurasian Soil Sci. - 2001. - Vol. 34, Is. 4. - P416-423. - Cited References: 19 . - 8. - ISSN 1064-2293РУБ Soil Science

Аннотация: The dependence of carbon mineralization and denitrification on soil chemical properties was studied in order to determine the spatial variability of these processes. Multiple regression models that describe 57% of the variation in denitrification and 97% of the variation in the organic carbon mineralization were developed. It was found that the simulation of potential denitrification activity is a more difficult problem than the simulation of C mineralization. Application of the orthogonal regression method proved that the fluxes of CO2 and N2O depend on the content of exchangeable cations in the soil (12-17% of the variability); the effect of soil acidity and the organic matter content is shown to be more significant (74-75% of the variability).

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

Доп.точки доступа:
Menyailo, O.V.; Krasnoshchekov, Y.N.

[Text] / A. S. Isaev, V. V. Kiselev, T. M. Ovchinnikova ; ed.: JG Goldammer, , JG Goldamm // FIRE IN ECOSYSTEMS OF BOREAL EURASIA. Ser. FORESTRY SCIENCES : KLUWER ACADEMIC PUBL, 1996. - Vol. 48: International Scientific Conference on Fire in Ecosystems of Boreal Eurasia (JUN-JUL -, 1993, KRASNOYARSK, RUSSIA). - P414-430. - Cited References: 0 . - 17. - ISBN 0-7923-4137-6РУБ Ecology + Forestry


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Держатели документа:
RUSSIAN ACAD SCI,VN SUKACHEV INST FORESTRY & TIMBER,SIBERIAN BRANCH,KRASNOYARSK 660036,RUSSIA
Доп.точки доступа:
Isaev, A.S.; Kiselev, V.V.; Ovchinnikova, T.M.; Goldammer, JG \ed.\; Goldamm, , JG \ed.\

[Text] / M. N. Evans [et al.] // J. Geophys. Res.-Biogeosci. - 2006. - Vol. 111, Is. G3. - Ст. G03008, DOI 10.1029/2006JG000166. - Cited References: 57 . - 13. - ISSN 0148-0227РУБ Environmental Sciences + Geosciences, Multidisciplinary

Аннотация: We investigate the interpretation of tree-ring data using the Vaganov-Shashkin forward model of tree-ring formation. This model is derived from principles of conifer wood growth, and explicitly incorporates a nonlinear daily timescale model of the multivariate environmental controls on tree-ring growth. The model results are shown to be robust with respect to primary moisture and temperature parameter choices. When applied to the simulation of tree-ring widths from North America and Russia from the Mann et al. (1998) and Vaganov et al. (2006) data sets, the forward model produces skill on annual and decadal timescales which is about the same as that achieved using classical dendrochronological statistical modeling techniques. The forward model achieves this without site-by-site tuning as is performed in statistical modeling. The results support the interpretation of this broad-scale network of tree-ring width chronologies primarily as climate proxies for use in statistical paleoclimatic field reconstructions, and point to further applications in climate science.

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Держатели документа:
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA
Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
Russian Acad Sci, Inst Forest, Krasnoyarsk, Russia

Доп.точки доступа:
Evans, M.N.; Reichert, B.K.; Kaplan, A...; Anchukaitis, K.J.; Vaganov, E.A.; Hughes, M.K.; Cane, M.A.

[Text] / V. L. Gavrikov, O. P. Sekretenko // Ecol. Model. - 1996. - Vol. 88, Is. 01.03.2013. - P183-193, DOI 10.1016/0304-3800(95)00087-9. - Cited References: 24 . - 11. - ISSN 0304-3800РУБ Ecology

Аннотация: The aim of the research was to create an algorithm simulating height-diameter relations in a pine tree subjected to various environmental impacts. The model is based on explicit description of light competition of the Scots pine twigs in three-dimensional space. The model is empirical and results from the measurements of correlations between shoots and buds in Scots pine that were made in the field. The development of the root system is not considered by the model. In simulation experiments it was demonstrated that: (i) the stand-grown pines have a higher height/diameter ratio than an open-grown model tree; (ii) an extremely high height/diameter ratio leads the tree to death; (iii) a tree suppressed for a sufficiently long time does not respond to better conditions; (iv) the diameter growth is much more sensitive to environmental change than the height growth. The model trees had the same growth parameters in every simulation. The simulated growth reactions are accounted for by self-adjustments of the model structure to the imposed conditions.

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Держатели документа:
RUSSIAN ACAD SCI,INST FOREST,KRASNOYARSK 660036,RUSSIA

Доп.точки доступа:
Gavrikov, V.L.; Sekretenko, O.P.

/ E. Kirik, T. Yurgel'Yan, D. Krouglov // Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - 2010. - Vol. 6068 LNCS: 8th International Conference on Parallel Processing and Applied Mathematics, PPAM 2009 (13 September 2009 through 16 September 2009, Wroclaw, Is. PART 2. - P513-520, DOI 10.1007/978-3-642-14403-5_54 . -
Аннотация: This paper deals with mathematical model of pedestrian flows. We focus here on an "intelligence" of virtual people. From macroscopic viewpoint pedestrian dynamics is already well simulated but from microscopic point of view typical features of people movement need to be implemented to models. At least such features are "keeping in mind" two strategies - the shortest path and the shortest time and keeping a certain distance from other people and obstacles if it is possible. In this paper we implement mathematical formalization of these features to stochastic cellular automata (CA) Floor Field (FF) model. В© 2010 Springer-Verlag Berlin Heidelberg.

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Держатели документа:
Institute of Computational Modelling, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kirik, E.; Yurgel'Yan, T.; Krouglov, D.

/ V. G. Soukhovolsky [et al.] // Doklady Biochemistry and Biophysics. - 2005. - Vol. 403, Is. 1-6. - P297-299, DOI 10.1007/s10628-005-0096-5 . - ISSN 1607-6729

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Держатели документа:
Sukachev Institute of Forestry, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian State Technological University, Krasnoyarsk, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660062, Russian Federation

Доп.точки доступа:
Soukhovolsky, V.G.; Pal'nikova, E.N.; Tarasova, O.V.; Karlyuk, A.Yu.

/ V. G. Sukhovol'skii, R. G. Khlebopros, T. R. Iskhakov // Doklady. Biochemistry and biophysics. - 2003. - Vol. 390. - P171-173 . - ISSN 1607-6729

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Держатели документа:
Sukachev Institute of Forest, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036 Russia.

Доп.точки доступа:
Sukhovol'skii, V.G.; Khlebopros, R.G.; Iskhakov, T.R.

/ F. Z. Glebov [et al.] // Russian Journal of Ecology. - 1997. - Vol. 28, Is. 6. - P367-370 . - ISSN 1067-4136
Аннотация: A peat profile, 5.5 m in depth, laid in a bog complex comprising frost mounds, bog hollows, and lakes was studied. This bog complex was located in one of the most swamped regions of the middle taiga of the West Siberian Plain. Botanical and spore-pollen analyses of the peat field were conducted. Across the thickness of the peat deposit, 17 points at 25-cm intervals were dated by the radiocarbon method. The dynamics of vegetation and climate during the past 9500 years were determined. It was revealed that, during this period, the rate of peat accumulation constantly tended to decrease, with some fluctuations. The results of mathematical and ecological simulation of this process predict that it will cease in another 1000 years. В© 1997 MAHK Hayka/Interperiodica Publishing.

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Держатели документа:
Sukachev Institute of Forestry, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Geography, Russian Academy of Sciences, Staromonetnyi per. 29, Moscow, 109017, Russian Federation

Доп.точки доступа:
Glebov, F.Z.; Karpenko, L.V.; Klimanov, V.A.; Mindeeva, T.N.

/ A. Bondarev // Forest Ecology and Management. - 1997. - Vol. 93, Is. 3. - P205-214, DOI 10.1016/S0378-1127(96)03952-7 . - ISSN 0378-1127
Аннотация: Tree age distribution determines stand size structure and is related to disturbance history and stand dynamics. Data are presented from 40 pure larch stands from six locations on the Taimyr peninsula and Evenk region in the northern open forests of Russian Siberia. A Weibull density function was used to describe actual age distribution and to simulate age distribution. Larch age distributions have similar patterns in different locations over the study area. All stands were found to have a multi-aged structure. The average coefficient of variation for age is about 48%. The range of tree ages exceed 400 years in the oldest forests. The patterns of age distribution change for different age groups. For the youngest stands (40-80 years old) the age distribution was leptokurtic and positively skewed, whereas for middle-aged forests (80-180 years old) it tended to be more mesokurtic and symmetric. In the oldest stands (more than 180 years old) the distribution had a platykurtic form. A high correlation was found between the Weibull function coefficients and the coefficient of age variation and for the mean age. The oldest forests were found in river valleys. Middle-aged forests occur more commonly on middle slopes and the youngest forests occupy top slopes and uplands. A more normal tree age distribution assumes a study area less damaged by forest fires than in the more southern parts of the boreal forest.

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Держатели документа:
Sukachev Institute of Forests, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Bondarev, A.

[Text] / E. A. Vaganov ; ed.: JS Dean, DM Meko, Meko, D // TREE RINGS, ENVIRONMENT AND HUMANITY : RADIOCARBON, 1996. - International Conference on Tree Rings, Environment and Humanity - Relationship and Processes (MAY 17-21, 1994, TUCSON, AZ). - P73-87. - Cited References: 0 . - 15. - ISBN 0-963831-42-9РУБ Ecology + Forestry + Geosciences, Multidisciplinary

Аннотация: I examine the cellular basis of tree-ring formation and the peculiarities of seasonal growth, and try to systematize the mechanisms that regulate the formation of conifer tree-ring structure. In addition to tree-ring width, some other anatomical data are increasingly being used in dendrochronology, namely cell size and wood density. I attempt to present a conceptual scheme of interaction of processes of xylem cell maturation. This scheme includes external regulation and is adequate for formalization in the form of a simulation model.

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Доп.точки доступа:
Vaganov, E.A.; Dean, JS \ed.\; Meko, DM \ed.\; Meko, D \ed.\

[Text] / P. M. Montesano [et al.] // Remote Sens. Environ. - 2015. - Vol. 158. - P95-109, DOI 10.1016/j.rse.2014.10.029. - Cited References:90. - This work was supported by the NASA Terrestrial Ecology Program. Weacknowledge the expertise of Sergey Im, Pasha Oskorbin and MukhtarNaurzbaev that was critical to the success of various field expeditionsin remote areas of northern Siberia. We also acknowledge the importanceof the constructive criticism provided by the anonymous reviewers whohelped improve this manuscript. . - ISSN 0034-4257. - ISSN 1879-0704РУБ Environmental Sciences + Remote Sensing + Imaging Science & Photographic

Аннотация: The Forest Light (FLIGHT) radiative transfer model was used to examine the uncertainty of vegetation structure measurements from NASA's planned ICESat-2 photon counting light detection and ranging (LiDAR) instrument across a synthetic Larix forest gradient in the taiga-tundra ecotone. The simulations demonstrate how measurements from the planned spaceborne mission, which differ from those of previous LiDAR systems, may perform across a boreal forest to non-forest structure gradient in globally important ecological region of northern Siberia. We used a modified version of FLIGHT to simulate the acquisition parameters of ICESat-2. Modeled returns were analyzed from collections of sequential footprints along LiDAR tracks (link-scales) of lengths ranging from 20 m-90 m. These link-scales traversed synthetic forest stands that were initialized with parameters drawn from field surveys in Siberian Larix forests. LiDAR returns from vegetation were compiled for 100 simulated LiDAR collections for each 10 Mg . ha(-1) interval in the 0-100 Mg . ha-1 above-ground biomass density (AGB) forest gradient. Canopy height metrics were computed and AGB was inferred from empirical models. The root mean square error (RMSE) and RMSE uncertainty associated with the distribution of inferred AGB within each AGB interval across the gradient was examined.Simulation results of the bright daylight and low vegetation reflectivity conditions for collecting photon counting LiDAR with no topographic relief show that 1-2 photons are returned for 79%-88% of LiDAR shots. Signal photons account for similar to 67% of all LiDAR returns, while similar to 50% of shots result in 1 signal photon returned. The proportion of these signal photon returns do not differ significantly (p > 0.05) for AGB intervals >20 Mg . ha(-1). The 50 m link-scale approximates the finest horizontal resolution (length) at which photon counting LiDAR collection provides strong model fits and minimizes forest structure uncertainty in the synthetic Larix stands. At this link-scale AGB >20 Mg . ha(-1) has AGB error from 20-50% at the 95% confidence level. These results suggest that the theoretical sensitivity of ICESat-2 photon counting LiDAR measurements alone lack the ability to consistently discern differences in inferred AGB at 10 Mg . ha-1 intervals in sparse forests characteristic of the taiga-tundra ecotone. (C) 2014 Elsevier Inc. All rights reserved.

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Univ Maryland, Dept Geog Sci, College Pk, MD 20742 USA.
Sigma Space Corp, Lanham, MD 20706 USA.
NASA, Goddard Space Flight Ctr, Biospher Sci Branch, Greenbelt, MD 20771 USA.
Swansea Univ, Dept Geog, Swansea SA2 8PP, W Glam, Wales.
No Res Stn, Roslin EH26 9SY, Midlothian, Scotland.
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.
ИЛ СО РАН

Доп.точки доступа:
Montesano, P. M.; Rosette, J.; Sun, G.; North, P.; Nelson, R.F.; Dubayah, R.O.; Ranson, K.J.; Kharuk, V.; NASA Terrestrial Ecology Program

/ V. V. Shishov [et al.] // Dendrochronologia. - 2016. - Vol. 39. - P42-50, DOI 10.1016/j.dendro.2015.10.001 . - ISSN 1125-7865
Аннотация: It is generally assumed in dendroecological studies that annual tree-ring growth is adequately determined by a linear function of local or regional precipitation and temperature with a set of coefficients that are temporally invariant. However, various researchers have maintained that tree-ring records are the result of multivariate, often nonlinear biological and physical processes. To describe critical processes linking climate variables with tree-ring formation, the process-based tree-ring Vaganov-Shashkin model (VS-model) was successfully used. However, the VS-model is a complex tool requiring a considerable number of model parameters that should be re-estimated for each forest stand. Here we present a new visual approach of process-based tree-ring model parameterization (the so-called VS-oscilloscope) which allows the simulation of tree-ring growth and can be easily used by researchers and students. The VS-oscilloscope was tested on tree-ring data for two species (Larix gmeliniiand Picea obovata) growing in the permafrost zone of Central Siberia. The parameterization of the VS-model provided highly significant positive correlations (p < 0.0001) between simulated growth curves and original tree-ring chronologies for the period 1950-2009. The model outputs have shown differences in seasonal tree-ring growth between species that were well supported by the field observations. To better understand seasonal tree-ring growth and to verify the VS-model findings, a multi-year natural field study is needed, including seasonal observation of the thermo-hydrological regime of the soil, duration and rate of tracheid development, as well as measurements of their anatomical features. © 2015 Elsevier GmbH.

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Siberian Federal University, Math Methods and IT Department, Krasnoyarsk, Russian Federation
V.N Sukachev Institute of Forest SB RAS, Laboratory of Tree-Ring Structure, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shishov, V. V.; Tychkov, I. I.; Popkova, M. I.; Ilyin, V. A.; Bryukhanova, M. V.; Kirdyanov, A. V.

: научное издание / В.Г. Суховольский [и др.] // Лесоведение. - 2017. - № : 4. - С. 293-302 : табл., DOI 10.7868/S0024114817040052. - Библиогр. в конце ст. . - ISSN 0024-1148
   Перевод заглавия: Simulation of phenodynamics of deciduous tree species

УДК	630.181.22;630.181.65

Аннотация: В настоящей работе предложен новый подход к анализу сезонной фенодинамики древесных растений. Рассмотрена модель фенодинамики, основанная на представлении о фенологических процессах у деревьев в бореальной зоне как о процессах генерации энергии в течение вегетационного сезона и расходования части накопленной энергии на выживание древесных растений в период покоя. Предложено уравнение энергетического баланса, связывающее погодные и фенологические показатели и позволяющее связать фенологические и метеорологические показатели в течение всего года. Модель идентифицирована по данным наземных фенологических наблюдений за березой, осиной, лиственницей сибирской на территории заповедника “Столбы” (55°38? - 55°58? с.ш., 92°38? - 93°05? в.д.) с 1951 по 2012?г. и позволяет с хорошей точностью описать наблюдаемые фенособытия. Коэффициенты модельного уравнения можно рассматривать как показатели восприимчивости древесных растений к воздействию климата. Показано, что для расчетов по модели энергетического баланса можно использовать результаты дистанционных спутниковых измерений. Для определения фенодат в насаждениях листопадных древесных пород использовались ежедневные данные о величине NDVI (Normalized Difference Vegetation Index) изучаемых объектов, представленные спутником Modis/Terra.
Here we show the new approach to analysis of seasonal phenological dynamics of wooded plants. Our model was premised on representation of phenological processes of trees in boreal domain by a process of energy production during the vegetation season and partial release of accumulated energy for survival during resting. We introduced the energy balance equation combining weather and phenological indicators and linking them throughout a year. The model was parameterized using data of phenological studies of birch, aspen, and Siberian larch in Stolby Nature Sanctuary (55°38' - 55°58' N, 92°38' - 93°05' E) during 1951-2012 which allow high accuracy simulation of phenological stages. Coefficients of the equation may be considered as indicators of sensitivity of wooded plants to climate. We show that remotely sensed data on phenological dates may be used in calculations using the model of energy balance. Daily MODIS/Terra images of NDVI (Normalized Difference Vegetation Index) of the studied deciduous forests were used.

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Институт биофизики СО РАН
Институт леса им. В. Н. Сукачева СО РАН

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Суховольский, Владислав Григорьевич; Soukhovolsky Vladislav Grigor'yevich; Иванова, Ю.Д.; Ivanova Yu. D.; Овчинникова, Тамара Михайловна; Ovchinnikova, Tamara Mikhaylovna; Ботвич, И.Ю.; Botvich I. Yu.

/ L. Orgogozo [et al.] // Permafrost Periglacial Process. - 2019. - Vol. 30, Is. 2. - P75-89, DOI 10.1002/ppp.1995. - Cited References:89. - CALMIP supercomputing center, Grant/Award Number: p12166; Campus France, Grant/Award Number: Kolmogorov No 14.587.21.0036; Russian Science Foundation, Grant/Award Number: 18-17-00237 . - ISSN 1045-6740. - ISSN 1099-1530РУБ Geography, Physical + Geology

Аннотация: To quantify the impact of evapotranspiration phenomena on active layer dynamics in a permafrost-dominated forested watershed in Central Siberia, we performed a numerical cryohydrological study of water and energy transfer using a new open source cryohydrogeology simulator, with two innovative features: spatially distributed, mechanistic handling of evapotranspiration and inclusion of a numerical tool in a high- performance computing toolbox for numerical simulation of fluid dynamics, OpenFOAM. In this region, the heterogeneity of solar exposure leads to strong contrasts in vegetation cover, which constitutes the main source of variability in hydrological conditions at the landscape scale. The uncalibrated numerical results reproduce reasonably well the measured soil temperature profiles and the dynamics of infiltrated waters revealed by previous biogeochemical studies. The impacts of thermo-hydrological processes on water fluxes from the soils to the stream are discussed through a comparison between numerical results and field data. The impact of evapotranspiration on water fluxes is studied numerically, and highlights a strong sensitivity to variability in rooting depth and corresponding evapotranspiration at slopes of different aspect in the catchment.

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Univ Toulouse, Observ Midi Pyrenees, GET, UMR CNRS UR IRD UPS 5563 234, 14 Ave Edouard Belin, F-31400 Toulouse, France.
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia.
Tomsk State Univ, BIO GEO CLIM Lab, Tomsk, Russia.
Univ Paris Saclay, Lab Sci Climat & Environm, IPSL LSCE, UMR CNRS CEA UVSQ 8212, Gif Sur Yvette, France.
Univ Toulouse, INPT, UPS, IMFT, Toulouse, France.
CNRS, IMFT, Toulouse, France.

Доп.точки доступа:
Orgogozo, Laurent; Prokushkin, Anatoly S.; Pokrovsky, Oleg S.; Grenier, Christophe; Quintard, Michel; Viers, Jerome; Audry, Stephane; CALMIP supercomputing center [p12166]; Campus France [14.587.21.0036]; Russian Science Foundation [18-17-00237]

/ E. A. Babushkina [et al.] // Forests. - 2019. - Vol. 10, Is. 11. - Ст. 999, DOI 10.3390/f10110999 . - ISSN 1999-4907
Аннотация: The response of vegetation to climate change is of special interest in regions where rapid warming is coupled with moisture deficit. This raises the question of the limits in plants' acclimation ability and the consequent shifts of the vegetation cover. Radial growth dynamics and climatic response were studied in Scots pine (Pinus sylvestris L.), Siberian larch (Larix sibirica Ledeb.), and silver birch (Betula pendula Roth.) in the forest-steppe, and for Siberian elm (Ulmus pumila L.) in the steppe of South Siberia, as indicators of vegetation state and dynamics. Climate-growth relationships were analyzed by the following two approaches: (1) correlations between tree-ring width chronologies and short-term moving climatic series, and (2) optimization of the parameters of the Vaganov-Shashkin tree growth simulation model to assess the ecophysiological characteristics of species. Regional warming was accompanied by a slower increase of the average moisture deficit, but not in the severity of droughts. In the forest-steppe, the trees demonstrated stable growth and responded to the May-July climate. In the steppe, elm was limited by moisture deficit in May-beginning of June, during the peak water deficit. The forest-steppe stands were apparently acclimated successfully to the current climatic trends. It seems that elm was able to counter the water deficit, likely through its capacity to regulate transpiration by the stomatal morphology and xylem structure, using most of the stem as a water reservoir; earlier onset; and high growth rate, and these physiological traits may provide advantages to this species, leading to its expansion in steppes. © 2019 by the authors.

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Держатели документа:
Khakass Technical Institute, Siberian Federal University, Abakan, 655017, Russian Federation
Department of Mathematical Methods and Information Technology, Siberian Federal University, Krasnoyarsk, 660075, Russian Federation
Institute of Ecology and Geography, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Dendroecology, V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Department of Forest Genetics and Forest Tree Breeding, Georg-August University of Gottingen, Gottingen, 37077, Germany
Center for Integrated Breeding Research, George-August University of Gottingen, Gottingen, 37075, Germany
Department of Ecosystem Science and Management, Texas A and M University, College Station, TX 77840, United States
Laboratory of Population Genetics, N.I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, 119991, Russian Federation
Laboratory of Forest Genomics, Genome Research and Education Center, Institute of Fundamental Biology and Biotechnology, Siberian Federal University, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Babushkina, E. A.; Zhirnova, D. F.; Belokopytova, L. V.; Tychkov, I. I.; Vaganov, E. A.; Krutovsky, K. V.

/ E. A. Babushkina, D. E. Zhirnova, L. V. Belokopytova [et al.] // Forests. - 2019. - Vol. 10, Is. 11. - Ст. 999, DOI 10.3390/f10110999. - Cited References:65. - This research was funded by the Russian Science Foundation, grant numbers 19-18-00145 ("Modeling of the mutual impact of climate change processes and the development of the forestry economy: case-study of Siberian regions" PI: E.A.V.) and 19-14-00120 ("Study of genetic adaptation of trees to stress environmental factors on the basis of genome-wide and dendrochronological analysis in the context of global climate change" PI: K.V.K), and by the Ministry of Science and Higher Education of the Russian Federation, Program Science of Future, project number 5.3508.2017/4.6 (PI: V.V.S.). . - ISSN 1999-4907РУБ Forestry

Аннотация: The response of vegetation to climate change is of special interest in regions where rapid warming is coupled with moisture deficit. This raises the question of the limits in plants' acclimation ability and the consequent shifts of the vegetation cover. Radial growth dynamics and climatic response were studied in Scots pine (Pinus sylvestris L.), Siberian larch (Larix sibirica Ledeb.), and silver birch (Betula pendula Roth.) in the forest-steppe, and for Siberian elm (Ulmus pumila L.) in the steppe of South Siberia, as indicators of vegetation state and dynamics. Climate-growth relationships were analyzed by the following two approaches: (1) correlations between tree-ring width chronologies and short-term moving climatic series, and (2) optimization of the parameters of the Vaganov-Shashkin tree growth simulation model to assess the ecophysiological characteristics of species. Regional warming was accompanied by a slower increase of the average moisture deficit, but not in the severity of droughts. In the forest-steppe, the trees demonstrated stable growth and responded to the May-July climate. In the steppe, elm was limited by moisture deficit in May-beginning of June, during the peak water deficit. The forest-steppe stands were apparently acclimated successfully to the current climatic trends. It seems that elm was able to counter the water deficit, likely through its capacity to regulate transpiration by the stomatal morphology and xylem structure, using most of the stem as a water reservoir; earlier onset; and high growth rate, and these physiological traits may provide advantages to this species, leading to its expansion in steppes.

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Держатели документа:
Siberian Fed Univ, Khakass Tech Inst, Abakan 655017, Russia.
Siberian Fed Univ, Dept Math Methods & Informat Technol, Krasnoyarsk 660075, Russia.
Siberian Fed Univ, Inst Ecol & Geog, Krasnoyarsk 660041, Russia.
Russian Acad Sci, VN Sukachev Inst Forest, Dept Dendroecol, Siberian Branch, Krasnoyarsk 660036, Russia.
Georg August Univ Gottingen, Dept Forest Genet & Forest Tree Breeding, D-37077 Gottingen, Germany.
George August Univ Gottingen, Ctr Integrated Breeding Res, D-37075 Gottingen, Germany.
Texas A&M Univ, Dept Ecosyst Sci & Management, College Stn, TX 77840 USA.
Russian Acad Sci, Lab Populat Genet, NI Vavilov Inst Gen Genet, Moscow 119991, Russia.
Siberian Fed Univ, Genome Res & Educ Ctr, Inst Fundamental Biol & Biotechnol, Lab Forest Genom, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Babushkina, Elena A.; Zhirnova, Dina E.; Belokopytova, Liliana, V; Tychkov, Ivan I.; Vaganov, Eugene A.; Krutovsky, Konstantin, V; Krutovsky, Konstantin; Belokopytova, Liliana; Russian Science FoundationRussian Science Foundation (RSF) [19-18-00145, 19-14-00120]; Ministry of Science and Higher Education of the Russian Federation, Program Science of Future [5.3508.2017/4.6]

/ E. I. Ponomarev, E. G. Shvetsov, K. Y. Litvintsev // Izv. Atmos. Ocean. Phys. - 2019. - Vol. 55, Is. 9. - P1065-1072, DOI 10.1134/S0001433819090408. - Cited References:39. - This work was supported by the Russian Foundation for Basic Research, the Government of the Krasnoyarsk Region, and the Krasnoyarsk krai Foundation for Research and Development Support, project no. 17-41-240475. . - ISSN 0001-4338. - ISSN 1555-628XРУБ Meteorology & Atmospheric Sciences + Oceanography

Аннотация: This study is based on the processing of satellite imagery in the wave range 3.93-3.99 mu m (Terra/Modis satellite) and numerical simulation results. It has been found for combustion conditions in Siberian forests that the observed fire radiative power (FRP) is 15% of the total fire power. Variations between 10 and 30% depend on both the fire development scenario (specific burnup rate of 0.01-0.1 kg/m(2) s and fire front velocity of 0.01-0.1 m/s) and the conditions for remote imaging. Instrumental estimates for the ratio of fire areas by given intensity quantiles for Siberian forests are presented. The share of low-, medium-, and high-intensity fires is 41.2-58.9, 35.0-46.5, and 6.10-13.44% of the total area. Refined estimates of fire emissions have been obtained taking into account the amount of biomass burnt and variable burning intensity. The proposed method allows the mass of burned forest fuel materials (FFM) and direct fire emissions to be estimated quantitatively at a level 14-21% lower than the values calculated with the help of standard approaches. The estimates of direct carbon emissions in the given time interval of 2002-2016 were 83 +/- 21 Tg/year on average, which is 17% lower than the value 112 +/- 25 Tg/year obtained with the standard method.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Fed Res Ctr KSC SB RAS, Krasnoyarsk, Russia.
Fed Res Ctr KSC SB RAS, Joint Reg Ctr Remote Sensing, Krasnoyarsk, Russia.
Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, Novosibirsk, Russia.

Доп.точки доступа:
Ponomarev, E. I.; Shvetsov, E. G.; Litvintsev, K. Yu.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Region; Krasnoyarsk krai Foundation for Research and Development Support [17-41-240475]