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

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Найдено документов в текущей БД: 74

    Evidence of evergreen conifer invasion into larch dominated forests during recent decades in Central Siberia
: материалы временных коллективов / V. I. Kharuk, K. Ranson, M. Dvinskaya // Eurasian Journal of Forest Research. - 2007. - Vol. 10-2. - С. 163-171. - Библиогр. в конце ст.

Аннотация: Models of climate warming predict the migration of "warm-adapted' species to habitates of "cold-adapted" species. Here we show evidence of expansion of "dark-needle" conifers (DNC: Siberian pine, spruce and fir) into the habitat of larch, the leader in adaptation to harsh climatic conditions in Asia. The studies were made along two transects oriented from the western and southern borders of a larch dominated forest to its center. The invasion of DNC into the historical larch habitat was quantified as an increase of the proportion of those species both in the overstory and in regeneration. The age structure of regeneration showed that regeneration occurred mainly during the last 2-3 decades. In particular warm winter temperatures promote the survival regenerated Siberian pine. The results obtained indicate the climate-driven migration of Siberian pine, spruce and fir into traditional zone of larch dominance. Substitution of a deciduous conifer (larch) by evergreen conifers decreases the albedo and may provide positive feedback for temperature increases.

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

Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав Иванович
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    Trophic adaptation of the Siberian moth in its native range and beyond the distribution boudary
: материалы временных коллективов / N. I. Kirichenko, Yu. N. Baranchikov // 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. 132-135. - Библиогр. в конце ст.

Аннотация: This is a short review of our recent studies on trophic adaptation of a boreal forest pest, the Siberian moth in its native range, North Asia and in Central Europe where the species is believed to invade in a near future. In Europe, the hierarchy in suitability of host plant genera (increasing from two-needle pines, spruce, fir, to larch) remains similar to that in the pest range. Besides European plants, some North American conifers from genera which do not exist in the pest habitat can be served as potential hosts for the insect.

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

Доп.точки доступа:
Baranchikov, Yury Nikolayevich; Баранчиков Юрий Николаевич; Кириченко, Наталья Ивановна

    Анатомические характеристики древесины лиственницы гмелина на разной высоте ствола деревьев в экотоне верхней границы леса на полуострове Таймыр
[Текст] = Anatomical characteristics of wood at various heights in the stems of gmelin larch trees growing in the upper treeline ecotone (Taymyr) : материалы временных коллективов / В. В. Симанько // 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. 47-50. - Библиогр. в конце ст.

Аннотация: Larch trees growing at the places in the upper border "open larch stand - tundra" and the upper border closed forest - open forest situated at the upper tree-line ecotone, were under study. Anatomical structure of tree rings at various stem heights, were investigatted. Better hydrothermal conditions in upper border of the "open larch stand - tundra" facilitate the formation of hinger number of cells and larder radial cell size in trees in comparison with those in the closed stand. These differences are related to adaptation of larch conducting tissue to correspond hydrothermal soil conditions.

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

Доп.точки доступа:
Siman'ko Valentina Vital'yevna

    Сохранение биоразнообразия в российской части Алтае-Саянского экорегиона в условиях изменения климата. Стратегия адаптации
[Текст] = Biodiversity Conservation in the Russian Portion of the Altai-Sayan Ecoregion Under Climate Change. Adaptation Strategy : научное издание / А. С. Шишикин, А. Ф. Мандыч [и др.]. ; Проект ПРООН/МКИ "Расширение сети ООПТ для сохранения Алтае-Саянского экорегиона". - Красноярск : Типография "Город", 2012. - 62 с. : граф., цв.ил., табл. - Библиогр.: с. 53-57 . - Алф. указ.: с. 58-61. - 200 экз. - ISBN 978-5-904314-58-3 : Б. ц.

Аннотация: В Стратегии на основе анализа изменения климата в Алтае-Саянском экорегионе и его последствий для биоразнообразия и природных экосистем предложен комплекс практических мер по адаптации природоохранной деятельности к климатическим изменениям. В основу разработки стратегии положены Климатическая доктрина Российский Федерации и Комплексный план ее реализации, а также использованы международные подходы по адаптации к климатическим изменениям. Стратегия предназначена для использования органами государственной власти различных уровней, государственными и общественными природоохранными организациями, образовательными учреждениями и другими сторонами. Кроме того, публикация будет интересна читателям, интересующимся проблемами адаптации к изменениям климата и вопросами сохранения биоразнообразия.

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

Доп.точки доступа:
Мандыч, А.Ф.; Яшина, Т.В.; Артёмов, И.А.; Декенов, В.В.; Останин, О.В.; Ротанова, И.Н.; Сухова, М.Г.; Харламова, Н.Ф.; Шмакин, А.Б.; Shishikin, Alexandr Sergyeyevich
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    Evaluation of morphological diversity and reproductive potential of dwarf pines in Shirinskaya forest-steppe
[Text] / I. V. Tikhonova // Contemp. Probl. Ecol. - 2011. - Vol. 4, Is. 6. - P658-664, DOI 10.1134/S1995425511060154. - Cited References: 36. - The work was performed with partial financial support of the Russian Foundation for Basic Research no. 11-04-98008-p_Siberia-a and no. 11-04-92226-Mong_a. . - 7. - ISSN 1995-4255
РУБ Ecology

Кл.слова (ненормированные):
dwarfism of growth -- adaptation -- morphological variability -- fruiting

Аннотация: Dwarf and typical trees of Pinus silvestris L. in Shirinskaya forest-steppe are compared on variability of vegetative and generative organs and quantitative and qualitative characteristics of fruiting. Special attention is paid to investigation of the correlation structure of characters in the compared samples. It has been determined that the dwarf pines are characterized by high variability of dimensional and qualitative characteristics. In spite of generally low reproductive potential of dwarf trees some species are distinguished by regular and abundant fruiting. They are characterized by higher correlation of characteristics and tendency to gonochorism. In spite of generally small contribution of dwarf species into the reproduction of pine population, it is quite consistent with the small area occupied by rocks within the studied territory. Some species are distinguished by higher reproductive potential and may be used to solve the problems of selection.

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Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660026, Russia

Доп.точки доступа:
Tikhonova, I.V.

    Agroclimatic potential across central Siberia in an altered twenty-first century
[Text] / N. M. Tchebakova [et al.] // Environ. Res. Lett. - 2011. - Vol. 6, Is. 4. - Ст. 45207, DOI 10.1088/1748-9326/6/4/045207. - Cited References: 38. - We would like to recognize the Northern Eurasian Earth Science Partnership Initiative (NEESPI) and the NASA Land Cover Land Use Change (LCLUC) program for providing the background that made this work possible. We are greatly appreciative of the current support for this work provided by the NASA InterDisciplinary Science grant NNH09ZDA001N-IDS and the Russian Foundation for Basic Research grant 10-05-00941. We thank our two anonymous reviewers for their very helpful comments. . - 11. - ISSN 1748-9326
РУБ Environmental Sciences + Meteorology & Atmospheric Sciences

Кл.слова (ненормированные):
climate warming -- central Siberia -- agriculture -- crop range and production

Аннотация: Humans have traditionally cultivated steppe and forest-steppe on fertile soils for agriculture. Forests are predicted to shift northwards in a warmer climate and are likely to be replaced by forest-steppe and steppe ecosystems. We analyzed potential climate change impacts on agriculture in south-central Siberia believing that agriculture in traditionally cold Siberia may benefit from warming. Simple models determining crop range and regression models determining crop yields were constructed and applied to climate change scenarios for various time frames: pre-1960, 1960-90 and 1990-2010 using historic data and data taken from 2020 and 2080 HadCM3 B1 and A2 scenarios. From 50 to 85% of central Siberia is predicted to be climatically suitable for agriculture by the end of the century, and only soil potential would limit crop advance and expansion to the north. Crop production could increase twofold. Future Siberian climatic resources could provide the potential for a great variety of crops to grow that previously did not exist on these lands. Traditional Siberian crops could gradually shift as far as 500 km northwards (about 50-70 km/decade) within suitable soil conditions, and new crops nonexistent today may be introduced in the dry south that would necessitate irrigation. Agriculture in central Siberia would likely benefit from climate warming. Adaptation measures would sustain and promote food security in a warmer Siberia.

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Держатели документа:
[Tchebakova, N. M.
Parfenova, E. I.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Lysanova, G. I.] Russian Acad Sci, Siberian Branch, Inst Geog, Irkutsk, Russia
[Soja, A. J.] NASA, Langley Res Ctr, NIA, Hampton, VA 23681 USA

Доп.точки доступа:
Tchebakova, N.M.; Parfenova, E.I.; Lysanova, G.I.; Soja, A.J.

    Topical scientific and practical issues of wildland fire problem
[Text] / A. . Volokitina, M. . Sofronov, T. . Sofronova // Mitig. Adapt. Strateg. Glob. Chang. - 2008. - Vol. 13, Is. 7. - P661-674, DOI 10.1007/s11027-007-9120-7. - Cited References: 29 . - 14. - ISSN 1381-2386
РУБ Environmental Sciences

Аннотация: Problem of wildfires has not been resolved anywhere in the world. Mere increase of technical power does not lead to desirable results. Forests of developed countries burn as actively as those in Africa or in Russia. The main reasons of wildfire problem are as follows: (1) Constant wandering of dry seasons over the planet causing outbreaks of wildfires. (2) Unpredicted self-development of ordinary wildfires into awful fire disasters. (3) Difficulties in delivery and use of heavy machines on hardly accessible territories. (4) Absence of a perfect technique for economic evaluation of how effectively the wildfire control system works. (5) Absence of the system of payments encouraging wildfire fighters. To solve the problem of wildfires in Russia it is necessary to: (1) Create the Russian wildfire behaviour and fire effects prediction system on the basis of the developed classification of vegetation fuels and methods of their mapping as well as maximum utilization of forest inventory information and Geographic Information System (GIS). (2) Elaborate a technique of proper wildfire monitoring including estimation of vegetation damage. (3) Improve daily rating of regional fire danger. (4) Improve fire-preventive arrangement of the territory covered by vegetation, the main goal being creation of favourable conditions for active fire management. (5) Choose the main direction in elaboration of fire-fighting means and methods taking into account their universality, simplicity, reliability, etc. (6) Elaborate an improved technique for estimation of economic effectiveness of the wildfire control system. (7) Develop international cooperation of scientists and professionals in fire management.

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Держатели документа:
[Volokitina, Alexandra
Sofronov, Mark] Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
[Sofronova, Tatiana] Astafiev Krasnoyarsk State Pedag Univ, Krasnoyarsk 660049, Russia

Доп.точки доступа:
Volokitina, A...; Sofronov, M...; Sofronova, T...

    Carbon storage in larch ecosystems in continuous permafrost region of Siberia
[Text] / Y. . Matsuura [et al.] // Phyton-Ann. REI Bot. - 2005. - Vol. 45: 6th International Symposium on Plant Responses to Air Pollution and Global Changes (OCT 19-22, 2004, Tsukuba, JAPAN), Is. 4. - P51-54. - Cited References: 14 . - 4. - ISSN 0079-2047
РУБ Plant Sciences

Кл.слова (ненормированные):
continuous permafrost -- Siberia -- larch ecosystem -- carbon storage

Аннотация: Deciduous coniferous taiga, larch (genus Larix) ecosystem is one of unique biomes in northeastern Eurasian Continent, where vast area of forest exists on continuous permafrost. We selected three representative sites for ecosystem research: 1) a forest near Yakutsk in Yakutian Basin, eastern Siberia (62N-129E), 2) a forest near Tura in central Siberian Plataeu (64N-100E), and 3) a forest tundra transition near Chersky in Kolyma lowland (69N-160E). We estimated C storage in both aboveground and belowground biomass, in forest floor, and in active layer as soil organic C and as carbonate-carbon. Soil organic C in active layer was the largest component in each site. Soils in Yakutsk and Tura showed carbonate-C accumulation in active layer, which might result from extreme continental climate with low annual precipitation. C storage in aboveground and belowground biomass varied among sites, however, ratios of above/belowground biomass C had a relatively narrow range from 1.1 to 1.5. High allocation rate of C to belowground part resulted from a kind of adaptation to effective nutrient acquisition under nutrient limited environment due to low soil temperature.

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Держатели документа:
Forestry & Forest Prod Res Inst, Dept Forest Site Environm, Tsukuba, Ibaraki 3058687, Japan
FFPRI, Kyushu Res Ctr, Kumamoto 8600862, Japan
Ryukoku Univ, Fac Int Comun, Otsu, Shiga 5202194, Japan
Russian Acad Sci, VN Sukachev Inst Forest, Akademgorodok, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Matsuura, Y...; Kajimoto, T...; Osawa, A...; Abaimov, A.P.

    Sex structure of scotch pine populations in the dry steppe
[Text] / I. V. Tikhonova // Russ. J. Ecol. - 2003. - Vol. 34, Is. 6. - P370-374, DOI 10.1023/A:1027304332042. - Cited References: 21 . - 5. - ISSN 1067-4136
РУБ Ecology

Кл.слова (ненормированные):
and conditions -- adaptation -- sex differentiation -- sexual dimorphism

Аннотация: it has been determined that the sex structure of the population is of great importance for pine adaptation to extreme environmental conditions. As environmental conditions deteriorate, differentiation of populations with respect to sex becomes more apparent, the proportion of trees of mixed type decreases, and the number of male trees increases. A tendency toward correlation between tree habitus, needle and shoot sizes, and the sex structure of population is noted. The prevalence of male trees in populations exposed to increasing stress reflects the rearrangement of such populations aimed at the more efficient use of natural resources.

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

Доп.точки доступа:
Tikhonova, I.V.

    The logic and uncertainty of explanations in organismal morphology (the principle of minimum change in evolution)
[Текст] / D. L. Grodnitsky // Zhurnal Obshchei Biol. - 1998. - Vol. 59, Is. 6. - С. 617-622. - Cited References: 117 . - 17. - ISSN 0044-4596
РУБ Biology

Аннотация: The development of certain form depends on natural selection and morphogenesis. The former process is resulted in analogies - characters of convergent similarity, while the latter can lead to non-adaptive parallel similarity of relatives (homologous series of N.I. Vavilov). Morphogenetic factor is shaped by past selection but does not depend on it at each new evolution act: spectrum of forms that can be produced is totally determined by embryological mechanisms and precedes the beginning of an evolutionary change. Mutual independence of two factors allows to use Bohr's correspondence principle. According to this principle any explanation is not full: it has its own competence area with its own rules for conclusions; there is no rules for logic transition between groups of accidental events; interaction of factors is expressed only as a limitation of their pattern formation abilities. To diminish uncertainty one can use the principle of evolution stabilisation of function by N.V. Kokshaisky, i.e. statement that functions of organism level are kept stable in the process of evolution while some changes at the lower levels are possible. The higher level of changes, the more complete reconstruction takes place in organism. The direction of evolution is minimisation of total sum of changes. As a consequence, the higher hierarchical level of function, more adaptive characters are belonged to its structures. And opposite, the lower hierarchical level, the more freedom for morphogenetic changes, the form of structures becomes indifferent for selection. Therefore the characters of high hierarchical levels can be explained in terms of adaptation, while the features of low level - on the base of morphogenetic peculiarities.

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

Доп.точки доступа:
Grodnitsky, D.L.

    Intraspecific responses to climate in Pinus sylvestris
[Text] / G. E. Rehfeldt [et al.] // Glob. Change Biol. - 2002. - Vol. 8, Is. 9. - P912-929, DOI 10.1046/j.1365-2486.2002.00516.x. - Cited References: 49 . - 18. - ISSN 1354-1013
РУБ Biodiversity Conservation + Ecology + Environmental Sciences

Аннотация: Five population-specific response functions were developed from quadratic models for 110 populations of Pinus sylvestris growing at 47 planting sites in Eurasia and North America. The functions predict 13 year height from climate: degree-days > 5 degreesC; mean annual temperature; degree-days < 0 degreesC; summer-winter temperature differential; and a moisture index, the ratio of degree-days > 5 degreesC to mean annual precipitation. Validation of the response functions with two sets of independent data produced for all functions statistically significant simple correlations with coefficients as high as 0.81 between actual and predicted heights. The response functions described the widely different growth potentials typical of natural populations and demonstrated that these growth potentials have different climatic optima. Populations nonetheless tend to inhabit climates colder than their optima, with the disparity between the optimal and inhabited climates becoming greater as the climate becomes more severe. When driven by a global warming scenario of the Hadley Center, the functions described short-term physiologic and long-term evolutionary effects that were geographically complex. The short-term effects should be negative in the warmest climates but strongly positive in the coldest. Long-term effects eventually should ameliorate the negative short-term impacts, enhance the positive, and in time, substantially increase productivity throughout most of the contemporary pine forests of Eurasia. Realizing the long-term gains will require redistribution of genotypes across the landscape, a process that should take up to 13 generations and therefore many years.

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Держатели документа:
USDA, Forest Serv, Rocky Mt Res Stn, Moscow, ID 83843 USA
Russian Acad Sci, Sikachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Rehfeldt, G.E.; Tchebakova, N.M.; Parfenova, Y.I.; Wykoff, W.R.; Kuzmina, N.A.; Milyutin, L.I.

    On polyphagy of the fir sawyer beetle Monochamus urussovi (Coleoptera, Cerambycidae)
[Текст] / V. M. Yanovskii, Y. N. Baranchikov // Zool. Zhurnal. - 1999. - Vol. 78, Is. 7. - С. 889-890. - Cited References: 8 . - 2. - ISSN 0044-5134
РУБ Zoology

Аннотация: The possibility of Monochamus urussovi Fisch to pass through all stages of development on aspen (Populus tremula L.) and birch (Betula pubescens L.) trees, apart from conifers, was shown. The aspen was registered as a host plant of this beetle for the first time. The ability to develop on aspen and birch is supposed to develop as an adaptation to successions in the course of which the native coniferous forests are replaced with secondary deciduous ones.

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

Доп.точки доступа:
Yanovskii, V.M.; Baranchikov, Y.N.

    C and N availability affects the N-15 natural abundance of the soil microbial biomass across a cattle manure gradient
[Text] / P. . Dijkstra [et al.] // Eur. J. Soil Sci. - 2006. - Vol. 57, Is. 4. - P468-475, DOI 10.1111/j.1365-2389.2006.00793.x. - Cited References: 36 . - 8. - ISSN 1351-0754
РУБ Soil Science

Аннотация: The availability of C and N to the soil microbial biomass is an important determinant of the rates of soil N transformations. Here, we present evidence that changes in C and N availability affect the N-15 natural abundance of the microbial biomass relative to other soil N pools. We analysed the N-15 natural abundance signature of the chloroform-labile, extractable, NO3-, NH4+ and soil total N pools across a cattle manure gradient associated with a water reservoir in semiarid, high-desert grassland. High levels of C and N in soil total, extractable, NO3-, NH4+ and chloroform-labile fractions were found close to the reservoir. The delta N-15 value of chloroform-labile N was similar to that of extractable (organic + inorganic) N and NO3- at greater C availability close to the reservoir, but was N-15-enriched relative to these N-pools at lesser C availability farther away. Possible mechanisms for this variable N-15-enrichment include isotope fractionation during N assimilation and dissimilation, and changes in substrate use from a less to a more N-15-enriched substrate with decreasing C availability.

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Держатели документа:
No Arizona Univ, Dept Biol Sci, Flagstaff, AZ 86011 USA
RAS, Inst Forest SB, Krasnoyarsk 660036, Russia
No Arizona Univ, Colorado Plateau Stable Isotope Lab, Flagstaff, AZ 86011 USA
No Arizona Univ, Sch Forestry, Flagstaff, AZ 86011 USA
No Arizona Univ, Merriam Powell Ctr Environm Res, Flagstaff, AZ 86011 USA

Доп.точки доступа:
Dijkstra, P...; Menyailo, O.V.; Doucett, R.R.; Hart, S.C.; Schwartz, E...; Hungate, B.A.

    The role of polyploidy in adaptation and settling of steppe shrubs in Central Asia
/ N. V. Ekimova, E. N. Muratova, P. P. Silkin // Russian Journal of Genetics: Applied Research. - 2012. - Vol. 2, Is. 2. - P105-109, DOI 10.1134/S2079059712020037 . - ISSN 2079-0597
Аннотация: Chromosome numbers for some species of Central Asia steppe shrubs are given: Rhamnus erythroxylon Pall. (Rhamnaceae), Caragana buriatica Peschk. (Fabaceae), Amygdalus pedunculata Pall., Armeniaca sibirica (L.) Lam. (Rosaceae), Atraphaxis pungens (Bieb.) Jaub. et Spach, and A. frutescens (L.) C. Koch (Polygonaceae). Chromosome numbers of some species were determined for the first time. A comparative analysis of adaptive properties of polyploidy and diploid species has been conducted. It was established that natural polyploids are more adaptive to existence in extreme conditions. They possess a high potential for survival and are characterized by a higher level of intraspecific polymorphism, abundant flowering and fruitification, ability to propagate both via generative and vegetative means, and high seed germination. В© 2012 Pleiades Publishing, Ltd.

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Полный текст

Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
V.N. Sukachev Institute of Forestry, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Ekimova, N.V.; Muratova, E.N.; Silkin, P.P.

    Forest adaptation strategies: Analysis of long-term post-fire succession in southern Siberia, Russian Federation
/ D. I. Nazimova [et al.] // Unasylva. - 2009. - Vol. 60, Is. 231-232. - P34-36 . - ISSN 0041-6436

Кл.слова (ненормированные):
adaptation -- climate change -- conference proceeding -- coniferous tree -- disturbance -- fire behavior -- forest ecosystem -- forest fire -- plant community -- shade tolerance -- species diversity -- succession -- Eurasia -- Siberia -- Coniferophyta -- Larix -- Pinus sibirica -- Pinus sylvestris -- Poaceae

Аннотация: The post-fire succession over the past 350 years have been analyzed so as to predict the effect of the increase in fires that is being anticipated to go hand in hand with climate change in southern Siberia, Russian Federation. Succession is defined to be the gradual supplanting of one plant community by another as conditions change either by natural means or an alter disturbance. A number of stages are being noticed in most successions on which different collections of species dominate. Finally, the last part of it is when the species composition no longer changes with time in the absence of natural or human-caused disturbances. It has been found out that the predicted increase in fires resulting from climate change in southern Siberia will probably reduce the number of larch and shade-tolerant conifers in favor of Scots pine, birch and aspen, as well as with non-tree plant communities of bushes, grasses and herbs. The continues warm and humid climate will lead to some changes in the composition of forest ecosystems that are not in favor economically. Thus, it is now necessary to have management plans for the plantations in Siberian pine to consider the increased risk of destructive surface fires and focus on fire protection.

Scopus

Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch of Russian Academy of Sciences (SBRAS), Krasnoyarsk, Russian Federation

Доп.точки доступа:
Nazimova, D.I.; Drobushevskaya, O.V.; Kofman, G.B.; Konovalova, M.E.

    An experimental burn to restore a moth-killed boreal conifer forest, Krasnoyarsk Region, Russia
/ E. N. Valendik [et al.] // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 4. - P883-896, DOI 10.1007/s11027-005-9017-2 . - ISSN 1381-2386
Аннотация: Mechanical treatment and prescribed fire were used to restore a mixed conifer stand (Picea-Abies-Pinus) following mortality from an outbreak of Siberian moth (Dendrolimus superans sibiricus). Moth-killed stands often become dominated by Calamagrostis, a sod-forming grass. The large amount of woody debris and the sod hinder coniferous seedling establishment and development as well as creating conditions favorable to the establishment and propagation of wildfires. Fire has been demonstrated to be an effective method of reducing woody debris and eliminating sod, but the random nature and timing of wildfires often do not create conditions favorable for conifer regeneration. Our study was conducted in a mature fir dominated stand that died during an outbreak 6-8 years previously with most of the dead trees still standing. A bulldozer drove through the stand downing standing snags in late summer with 15-20 m between passes. Snags knocked down by the bulldozer and additional snag fall throughout the following winter increased downed dead wood 50-60% and large downed dead wood 80% compared to an adjacent untreated area. In June, a prescribed fire was set and fuel load consumption averaged 70%. Average soil temperatures during the burn ranged from 47В°C at a depth of 2 cm to 10В°C at 10 cm; hot enough to kill the grass. Following treatment, the potential for wildfire was reduced and the area was suitable for either natural conifer regeneration or planting without further mechanical site preparation. В© Springer 2006.

Scopus

Держатели документа:
V.N. Sukachev Institute of Forest, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, Russian Federation
USDA Forest Service, Northeastern Research Station, Durham, NH 03824, United States
USDA Forest Service, Missoula, MT 59807, United States
USDA Forest Service, Tahoe National Forest, Nevada City, CA 95959, United States

Доп.точки доступа:
Valendik, E.N.; Brissette, J.C.; Kisilyakhov, Y.K.; Lasko, R.J.; Verkhovets, S.V.; Eubanks, S.T.; Kosov, I.V.; Lantukh, A.Yu.

    Impacts of climate change on the distribution of larix spp. and Pinus sylvestris and their climatypes in Siberia
/ M. T. Nadezda, E. R. Gerald, I. P. Elena // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 4. - P861-882, DOI 10.1007/s11027-005-9019-0 . - ISSN 1381-2386
Аннотация: Inter- and intraspecific effects of climate change were assessed for the dominant conifers of Siberia (60-140В°E and 48-75В°N): Larix spp. (L. sibirica, L. dahurica, and L. sukaczewii) and Pinus sylvestris . The approach employed a tri-variate (degree-days above 5В°C, degree-days below 0В°C, and a moisture index) estimate of the climatic envelope within which exists the actual ecological distribution of a species and their constituent climatypes (genotypes physiologically attuned to similar environments). Limits of the actual ecological distribution were approximated by reducing the climatic envelope according to effects of permafrost and interspecific competition. Climatypes were mapped within the climatic envelope according to the climatic interval that must separate populations for reasonable assurance of genetic differentiation. This interval was calculated from response functions that related 13-year growth and survival of a species to the difference in climate between the provenance of a climatype and the climate of numerous test sites distributed across Russia. Mapping species' distributions and their climatypes was done for the contemporary climate and for future climates predicted by the HadCM3GGa1 scenario of Hadley Centre. The results showed that if the forests of the future are to reflect the adaptedness of today, the distribution of species will shift and genotypes within species will be redistributed. Some contemporary climatypes are projected to disappear from Siberia while others common elsewhere would evolve. To mitigate these effects, climatypes should be transferred today to the expected future location of their climatic optima, a distance that is likely to approach 700-1200 km for these species. В© Springer 2005.

Scopus

Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Academgorodok, 660036 Krasnoyarsk, Russian Federation
USDA Forest Service, Rocky Mountain Research Station, Forestry Sciences Laboratory, 1221 S. Main, Moscow, ID 83843, United States

Доп.точки доступа:
Nadezda, M.T.; Gerald, E.R.; Elena, I.P.

    Genetic and environmental effects assessment in Scots pine provenances planted in Central Siberia
/ J. V. Savva, E. A. Vaganov // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 1. - P269-290, DOI 10.1007/s11027-006-1026-2 . - ISSN 1381-2386

Кл.слова (ненормированные):
Climate change -- Dendrochronology -- Dendroecology -- Densitometry -- Plantation -- Provenance -- Tree ring -- environmental effect -- forestry -- Eurasia -- Siberia -- Pinus sylvestris

Аннотация: Scots pine provenance trials were established in 1964 in forest-steppe and in 1974 in southern taiga zones of Central Siberia from seeds collected over whole Russia. Tree-ring characteristics (radial growth and density chronologies) from 12 and 16 provenances planted in those plantations were measured densitometrically. Tree-ring analysis revealed a retention of a genetically fixed response to climatic factors proper to pines' origin. Trees from higher latitudes keep the orientation towards accelerated growth at the beginning of a growing season, which is followed by a rapid transition to formation of latewood cells and deceleration of growth earlier, than in medium-latitude trees. Main climatic factors controlling tree-rings formation differed slightly between different provenances within plantations. Genetically fixed ability of the provenances are not great (less than 15%), that proves high adaptability of pines to abrupt climatic change. Tree-ring formation of Scots pine provenances is mainly determined by the environmental factors. В© Springer 2006.

Scopus

Держатели документа:
Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Savva, J.V.; Vaganov, E.A.

    Transformation of organic matter of the Larch forest soils in the northern taiga of Nizhne-Tungusskoe Plateau, central Siberia
/ L. V. Mukhortova, I. N. Bezkorovainaya // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 1. - P191-202, DOI 10.1007/s11027-006-1020-8 . - ISSN 1381-2386

Кл.слова (ненормированные):
Soil biota -- Soil C storage and structure -- Soil organic matter -- Transformation rate -- forest soil -- organic matter -- Eurasia -- Siberia -- Bryophyta -- Invertebrata -- Larix

Аннотация: The evaluation of biospheric role of the boreal forests in the accumulation of carbon is connected with the evaluation of organic matter (OM) pool in soils. The research sites were larch forests, they are situated on Nizhne-Tungusskoe Plateau. Larch forests of feather-moss and lichen types (110 and 380 years old) were formed on 'ochric podbur' soils. Litter stocks are 3.5-4.5 kg m-2 with thickness 10-25 cm. Cryomezomorphic northern taiga soils contains 38-73 t (carbon) ha-1. Pool of fast mineralized OM has average value 38.1 t (carbon) ha-1, including 20.5 and 6.4 t (Carbon) ha-1 of labile compounds on surface and in the soil, and 11.2 t (carbon) ha-1 of mobile OM. Microbial mass reaches 1.78-3.47 t (carbon) ha-1, its proportion is 3.6-4.9% of the total OM carbon. Zoomass of feather-moss larch forest is 0.20-0.61 * 10-2, in lichen larch forest -0.01-0.07 * 10-2 t (carbon) ha -1. A pool of resistant to biological decomposition and bonded to mineral soil matrix OM is 17.7 t (carbon) ha-1 and it varies from 18.6 to 29.0 in feather-moss larch forest, and from 6.4 to 17.0 t (carbon) ha-1 in lichen larch forest. Two-years field experiment has been performed to determine transformation rates of various plant litter fractions and to clarify the role of soil biota in these processes. The results showed participation of all biota groups in the decomposition of plant residues caused weight loss of larch-needles and root mortmass. Isolation of organic matter from all-size invertebrate groups leads to some decrease of decomposition activity. В© Springer 2006.

Scopus

Держатели документа:
Institute of Forest, Russian Academy of Sciences, Siberian Branch Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Mukhortova, L.V.; Bezkorovainaya, I.N.

    Net ecosystem production of boreal larch ecosystems on the Yenisei Transect
/ E. F. Vedrova, F. I. Pleshikov, V. Ya. Kaplunov // Mitigation and Adaptation Strategies for Global Change. - 2006. - Vol. 11, Is. 1. - P173-190, DOI 10.1007/s11027-006-1016-4 . - ISSN 1381-2386
Аннотация: The study was carried out in the Turukhansk Research Station of Yenisei Transect (65В°46'N, 89В°25'E). Larch (Larix gmelinii (Rupr.) Rupr.) is the dominant overstory tree species. The research has been conducted on four permanent test plots in same-age mature (110-year old) and overmature (380-year old) post-fire larch stands of green moss and lichen groups of forest type. Carbon cycle parameters were assessed based on a biometric method. Quantitative analysis of carbon pools and fluxes shows that net ecosystem production of north taiga larch stands averages 32% of net primary production. Sink of atmospheric CO2 makes 1.22 and 0.74 t C ha-1 year-1 for mature and overmature green moss larch stands, and 0.65 and 0.35 t C ha -1 year-1 for lichen type. Net carbon sink in the tree layer make up 9% of net primary production carbon, ground vegetation - 15%, and dead plant residues accumulation - 8% of atmospheric carbon uptake via photosynthesis. В© Springer 2006.

Scopus

Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Science, 660036 Krasnoyarsk, Akademgorodok, Russian Federation

Доп.точки доступа:
Vedrova, E.F.; Pleshikov, F.I.; Kaplunov, V.Ya.