: материалы временных коллективов / V. I. Kharuk, S. T. Im, M. L. Dvinskaya // Boreal forests in a changing world: challenges and needs for action: Proceedings of the International conference August 15-21 2011, Krasnoyarsk, Russia. - Krasnoyarsk : V.N. Sukachev Institute of forest SB RAS, 2011. - С. 219-222. - Библиогр. в конце ст.
Аннотация: Warming induced (1) tree upward and northward migration and (2) krummholz transformation in alpine and northern ecotones, (3) a "dark needle conifers (DNC)" migration within "mixed taiga - zone of larch dominance" ecotone, (4) growth increment increase and stand denisification, (4) DNC proportion increase, which should lead an albedo decrease, amplifying warming at local scale. Observed radial and apical growth increment increases were correlated with both, air temperatures and atmospheric CO2 concentration increases.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Im, Sergey Tkhekdyeyevich; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Харук, Вячеслав Иванович
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
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Найдено документов в текущей БД: 6
The potential impact of CO2 and air temperature increases on krummholz transformation into arborescent form in the southern Siberian Mountains
: материалы временных коллективов / V. I. Kharuk, M. Dvinskaya, S.T. Im, K. Ranson // Arctic, Antarctic and Alpine Research. - 2011. - Vol. 43, № 4. - С. 593-600. - Библиогр. в конце ст.
Аннотация: Trees in the southern Siberian Mountains forest-tundra ecotone have considerably increased their radial and apical growth increments during the last few decades. This leads to the widespread vertical transformation of mat and prostrate krummholz forms of larch (Larix sibirica Ledeb) and Siberian pine (Pinus sibirica Du Tour). An analysis of the radial growth increments showed that these transformations began in the mid-1980s. Larch showed a greater resistance to the harsh alpine environment and attained a vertical growth form in areas where Siberian pine is still krummholz and etc.
Scopus,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Im, Sergey Tkhekdyeyevich; Им, Сергей Тхекдеевич; Харук, Вячеслав Иванович
Имеются экземпляры в отделах:
ЧЗ (05.03.2008г. (1 экз.) - Б.ц.) - свободны 1
Аннотация: Trees in the southern Siberian Mountains forest-tundra ecotone have considerably increased their radial and apical growth increments during the last few decades. This leads to the widespread vertical transformation of mat and prostrate krummholz forms of larch (Larix sibirica Ledeb) and Siberian pine (Pinus sibirica Du Tour). An analysis of the radial growth increments showed that these transformations began in the mid-1980s. Larch showed a greater resistance to the harsh alpine environment and attained a vertical growth form in areas where Siberian pine is still krummholz and etc.
Scopus,
WOS
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Ranson, K.J.; Рэнсон К.Дж.; Dvinskaya, Mariya Leonidovna; Двинская, Мария Леонидовна; Im, Sergey Tkhekdyeyevich; Им, Сергей Тхекдеевич; Харук, Вячеслав Иванович
Имеются экземпляры в отделах:
ЧЗ (05.03.2008г. (1 экз.) - Б.ц.) - свободны 1
Climate-induced mountain tree-line evolution in southern Siberia
[Text] / V. I. Kharuk [et al.] // Scand. J. Forest Res. - 2010. - Vol. 25, Is. 5. - P446-454, DOI 10.1080/02827581.2010.509329. - Cited References: 47. - This research was supported by the NASA Science Mission Directorate, Terrestrial Ecology Program, Siberian Branch Russian Academy of Science Program 23.3.33 and grant MK-2497.2009.5. The authors thank Dr V. Miglan for help with the dendrochronology analysis and Dr Joanne Howl for editing this manuscript.
. - 9. - ISSN 0282-7581
РУБ Forestry
Аннотация: The elevational tree-line change within the transitional zone between boreal forest and Mongolian steppes was quantified for the last millennium. The basic approach included studies along transects and measurements of tree-line positions to identify current, historical, refugee and regeneration tree lines. Tree mortality and natality were determined based on dendrochronology analysis. Tree mortality in the sixteenth to eighteenth centuries coincided with the Little Ice Age, while tree establishment was stimulated by warming at the end of nineteenth century. Downward shifts in tree line varied by an order of magnitude. The current tree-line position reoccupied the historical tree line in some transects, and was below or above the historical line in others. The regeneration line surpassed the historical tree line by 91 +/- 46 m (mean +/- SD). Such a heterogeneous response was attributed to local topoclimatic conditions and sapling recruitment efficiency. A mean annual 1 degrees C increase in temperature was associated with an upward shift of the tree line by about 70 m. The upward migration rate of the current tree line was about 0.8 m year-1 during the last century. The regeneration migration rate was about 2.3 m year-1 over the past three decades. Finally, the transformation of krummholz forms of larch and Siberian pine into arborescent form was documented.
Полный текст,
WOS,
Scopus
Держатели документа:
[Kharuk, Vyacheslav I.
Im, Sergey T.
Dvinskaya, Maria L.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Ranson, Kenneth J.] NASAs Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Im, S.T.; Dvinskaya, M.L.; Ranson, K.J.
Рубрики:
FOREST-TUNDRA ECOTONE
GLACIER-NATIONAL-PARK
SWEDISH SCANDES
EVERGREEN CONIFERS
PINUS-SYLVESTRIS
PERSPECTIVE
20TH-CENTURY
VEGETATION
RESPONSES
DYNAMICS
Кл.слова (ненормированные):
Alpine forest-tundra ecotone -- tree-line response to climate change -- krummholz -- Larix sibirica -- Pinus sibirica
FOREST-TUNDRA ECOTONE
GLACIER-NATIONAL-PARK
SWEDISH SCANDES
EVERGREEN CONIFERS
PINUS-SYLVESTRIS
PERSPECTIVE
20TH-CENTURY
VEGETATION
RESPONSES
DYNAMICS
Кл.слова (ненормированные):
Alpine forest-tundra ecotone -- tree-line response to climate change -- krummholz -- Larix sibirica -- Pinus sibirica
Аннотация: The elevational tree-line change within the transitional zone between boreal forest and Mongolian steppes was quantified for the last millennium. The basic approach included studies along transects and measurements of tree-line positions to identify current, historical, refugee and regeneration tree lines. Tree mortality and natality were determined based on dendrochronology analysis. Tree mortality in the sixteenth to eighteenth centuries coincided with the Little Ice Age, while tree establishment was stimulated by warming at the end of nineteenth century. Downward shifts in tree line varied by an order of magnitude. The current tree-line position reoccupied the historical tree line in some transects, and was below or above the historical line in others. The regeneration line surpassed the historical tree line by 91 +/- 46 m (mean +/- SD). Such a heterogeneous response was attributed to local topoclimatic conditions and sapling recruitment efficiency. A mean annual 1 degrees C increase in temperature was associated with an upward shift of the tree line by about 70 m. The upward migration rate of the current tree line was about 0.8 m year-1 during the last century. The regeneration migration rate was about 2.3 m year-1 over the past three decades. Finally, the transformation of krummholz forms of larch and Siberian pine into arborescent form was documented.
Полный текст,
WOS,
Scopus
Держатели документа:
[Kharuk, Vyacheslav I.
Im, Sergey T.
Dvinskaya, Maria L.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Ranson, Kenneth J.] NASAs Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Im, S.T.; Dvinskaya, M.L.; Ranson, K.J.
Response of Pinus sibirica and Larix sibirica to climate change in southern Siberian alpine forest-tundra ecotone
[Text] / V. I. Kharuk [et al.] // Scand. J. Forest Res. - 2009. - Vol. 24, Is. 2. - P130-139, DOI 10.1080/02827580902845823. - Cited References: 42. - This research was supported in part by the NASA Science Mission Directorate, Terrestrial Ecology and Cryospheric Sciences Programs and Russian Fund for Fundamental Investigations No. 06-05-64939. Special thanks to Joanne Howl, DVM, for assisting with final preparation of the manuscript.
. - 10. - ISSN 0282-7581
РУБ Forestry
Аннотация: A warming climate provides competitive advantages to Siberian pine (Pinus sibirica Du Tour) in areas with sufficient precipitation. The warmer temperatures observed in central Siberia over the past three decades appear to have had a noticeable effect on growth of Siberian pine and larch (Larix sibirica Ledeb.) in the south Siberian Mountain forest-tundra ecotone. Larch is more tolerant of harsh climates and exhibits an arboreal growth form, whereas Siberian pine is in krummholz form. Larch also has an advantage at the upper tree limit and in areas with low precipitation. Since the mid-1980s there have been measurable increases in growth increments, stand densification, regeneration propagation into the alpine tundra and transformation of krummholz into arboreal forms. Warming winter temperatures have been sufficient for increased survival of regeneration. Regeneration responded to temperature increase of 1C by migration to areas 10-40 m higher in elevation. Regeneration has propagated into the alpine tundra at the rate of similar to 1.0-2.0 m year-1. Siberian pine and larch regeneration surpassed their upper historical limit by 10-80 m in elevation. While increased tree growth and migration into alpine tundra areas affect the regional carbon balance, it will also decrease albedo, which may increase warming at the regional level.
Полный текст,
WOS,
Scopus
Держатели документа:
[Kharuk, Viacheslav I.
Im, Sergey T.
Dvinskaya, Maria L.] VN Sukachev Inst Forest, Krasnoyarsk, Russia
[Ranson, Kenneth J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Ranson, K.J.; Im, S.T.; Dvinskaya, M.L.; Terrestrial Ecology and Cryospheric Sciences Programs and Russian Fund for Fundamental Investigations [06-05-64939]
Рубрики:
SWEDISH SCANDES
TREE-LINE
HEIGHT GROWTH
SYLVESTRIS
VEGETATION
IMPACTS
20TH-CENTURY
PERSPECTIVE
MOUNTAINS
RUSSIA
Кл.слова (ненормированные):
Climate change -- forest-tundra ecotone -- larch -- Siberian pine -- tree line
SWEDISH SCANDES
TREE-LINE
HEIGHT GROWTH
SYLVESTRIS
VEGETATION
IMPACTS
20TH-CENTURY
PERSPECTIVE
MOUNTAINS
RUSSIA
Кл.слова (ненормированные):
Climate change -- forest-tundra ecotone -- larch -- Siberian pine -- tree line
Аннотация: A warming climate provides competitive advantages to Siberian pine (Pinus sibirica Du Tour) in areas with sufficient precipitation. The warmer temperatures observed in central Siberia over the past three decades appear to have had a noticeable effect on growth of Siberian pine and larch (Larix sibirica Ledeb.) in the south Siberian Mountain forest-tundra ecotone. Larch is more tolerant of harsh climates and exhibits an arboreal growth form, whereas Siberian pine is in krummholz form. Larch also has an advantage at the upper tree limit and in areas with low precipitation. Since the mid-1980s there have been measurable increases in growth increments, stand densification, regeneration propagation into the alpine tundra and transformation of krummholz into arboreal forms. Warming winter temperatures have been sufficient for increased survival of regeneration. Regeneration responded to temperature increase of 1C by migration to areas 10-40 m higher in elevation. Regeneration has propagated into the alpine tundra at the rate of similar to 1.0-2.0 m year-1. Siberian pine and larch regeneration surpassed their upper historical limit by 10-80 m in elevation. While increased tree growth and migration into alpine tundra areas affect the regional carbon balance, it will also decrease albedo, which may increase warming at the regional level.
Полный текст,
WOS,
Scopus
Держатели документа:
[Kharuk, Viacheslav I.
Im, Sergey T.
Dvinskaya, Maria L.] VN Sukachev Inst Forest, Krasnoyarsk, Russia
[Ranson, Kenneth J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Ranson, K.J.; Im, S.T.; Dvinskaya, M.L.; Terrestrial Ecology and Cryospheric Sciences Programs and Russian Fund for Fundamental Investigations [06-05-64939]
Forest-tundra ecotone response to climate change in the Western Sayan Mountains, Siberia
/ V. I. Kharuk, S. T. Im, M. L. Dvinskaya // Scandinavian Journal of Forest Research. - 2010. - Vol. 25, Is. 3. - P224-233, DOI 10.1080/02827581003766959
. - ISSN 0282-7581
Кл.слова (ненормированные):
Alpine forest line -- Climate-induced tree response -- Forest-tundra ecotone -- Landsat -- Siberian pine -- Vegetation spatial pattern -- Air temperature -- Climate trends -- Crown closures -- Forest stand -- Forest-tundra ecotone -- Ground observations -- Krummholz -- LANDSAT -- Multi-temporal -- Pine vegetation -- Shift-and -- SIBERIA -- Slope steepness -- Spatial patterns -- Temperature limits -- Temperature trends -- Tree growth -- Upper boundary -- Data flow analysis -- Landforms -- Reforestation -- Temperature -- Vegetation -- Climate change -- Altitude -- Climates -- Data Processing -- Growth -- Mountains -- Pinus -- Plants -- Reforestation -- Satellites -- Trees -- Abies -- Pinus sibirica
Аннотация: Tree response to climate trends is most likely to be observed in the forest-tundra ecotone, where mainly temperature limits tree growth. On-ground observation and multitemporal Landsat data were used in the analysis of forest-tundra ecotone dynamics (from 1976 to 2000) in the Western Sayan Mountains, Siberia. Observations showed an increase in forest stand crown closure, upward tree-line and regeneration shift and the transformation of Siberian pine and fir krummholz into arboreal forms. Closed stands were increasing in the area at a rate of 0.8% year -1 and advancing their upper boundary at an altitudinal rate of 0.6 m year -1; these changes were shown mainly by the transformation of sparse stands into closed stands. The altitudinal rate of regeneration propagation was estimated at 1.2 m year -1. It was also found that these changes correlated positively with temperature trends. The response of tree vegetation to air temperature increase was dependent on topographic relief features (azimuth and slope steepness). В© 2010 Taylor & Francis.
Scopus,
WOS,
Полный текст
Держатели документа:
V. N. Sukachev Institute of Forest, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Kharuk, V.I.; Im, S.T.; Dvinskaya, M.L.
Кл.слова (ненормированные):
Alpine forest line -- Climate-induced tree response -- Forest-tundra ecotone -- Landsat -- Siberian pine -- Vegetation spatial pattern -- Air temperature -- Climate trends -- Crown closures -- Forest stand -- Forest-tundra ecotone -- Ground observations -- Krummholz -- LANDSAT -- Multi-temporal -- Pine vegetation -- Shift-and -- SIBERIA -- Slope steepness -- Spatial patterns -- Temperature limits -- Temperature trends -- Tree growth -- Upper boundary -- Data flow analysis -- Landforms -- Reforestation -- Temperature -- Vegetation -- Climate change -- Altitude -- Climates -- Data Processing -- Growth -- Mountains -- Pinus -- Plants -- Reforestation -- Satellites -- Trees -- Abies -- Pinus sibirica
Аннотация: Tree response to climate trends is most likely to be observed in the forest-tundra ecotone, where mainly temperature limits tree growth. On-ground observation and multitemporal Landsat data were used in the analysis of forest-tundra ecotone dynamics (from 1976 to 2000) in the Western Sayan Mountains, Siberia. Observations showed an increase in forest stand crown closure, upward tree-line and regeneration shift and the transformation of Siberian pine and fir krummholz into arboreal forms. Closed stands were increasing in the area at a rate of 0.8% year -1 and advancing their upper boundary at an altitudinal rate of 0.6 m year -1; these changes were shown mainly by the transformation of sparse stands into closed stands. The altitudinal rate of regeneration propagation was estimated at 1.2 m year -1. It was also found that these changes correlated positively with temperature trends. The response of tree vegetation to air temperature increase was dependent on topographic relief features (azimuth and slope steepness). В© 2010 Taylor & Francis.
Scopus,
WOS,
Полный текст
Держатели документа:
V. N. Sukachev Institute of Forest, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Kharuk, V.I.; Im, S.T.; Dvinskaya, M.L.
Impacts of air pollution on far north forest vegetation
/ V. A. Alexeyev // Science of the Total Environment. - 1995. - Vol. 160-161. - P605-617, DOI 10.1016/0048-9697(95)04395-H
. - ISSN 0048-9697
Кл.слова (ненормированные):
air pollution -- damage -- health dynamics -- northern forests -- air pollution -- arctic -- biological monitoring -- conference paper -- environmental impact assessment -- forest -- nonhuman -- priority journal -- ussr -- vegetation -- Coniferales -- Kola -- air pollution -- boreal forest -- damage -- krummholz -- northern forest -- sulphate -- taiga -- terrestrial ecosystem -- trace metal -- tundra -- Arctic -- Russian Federation, Kola Peninsula -- Russian Federation, Taimyr Peninsula
Аннотация: As are other parts of the earth, arctic and subarctic territories are influenced by global, regional, and local air pollution. In Europe, the greatest load of airborne contaminants is observed in terrestrial ecosystems of the Kola Peninsula; in Asia, the greatest load is found in ecosystems of the Taimyr Peninsula, where large copper-nickel smelters are functioning. The studies described here for these regions encompassed local and regional deposition of pollutants (mainly sulfates and trace metals); changes in the composition, structure, productivity, and status of forest vegetation; morphological reactions of plant species and their regenerative activity; reforestation processes; successions; element composition of plants and soils; and biological activity of soils. The key findings of long-term studies are as follows. First, the symptoms of plant damage by air and soil pollutants in arctic and temperate zones are the same. Second, plants weakened by natural stresses have lower thresholds of sensitivity to airborn pollutants. Third, rapid destruction of northern plant communities by pollutants is often connected with a wide distribution of sensitive species (e.g., lichens) and previously weakened plants. Fourth, the specific structure of far northern forest and tundra ecosystems (in particular, open canopy and/or thin photosynthetic layer) and the severe climate produce some peculiarities in plant damage, namely (1) a large difference in the rate and intensity of damage to upper and lower parts of plants if the green parts are above or under snow in the winter, (2) simultaneous damage of different parts of stands that are above snow cover, and (3) an increase in the krummholz effect (stunted, low-lying branches) for evergreen coniferous trees. These findings were obtained for conditions of evident airborne contamination. The impact of low level regional pollutants on arctic and subartic vegetation is not sufficiently understood.
Scopus,
Полный текст
Держатели документа:
Sukachev Institute for Forest Research, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Alexeyev, V.A.
Кл.слова (ненормированные):
air pollution -- damage -- health dynamics -- northern forests -- air pollution -- arctic -- biological monitoring -- conference paper -- environmental impact assessment -- forest -- nonhuman -- priority journal -- ussr -- vegetation -- Coniferales -- Kola -- air pollution -- boreal forest -- damage -- krummholz -- northern forest -- sulphate -- taiga -- terrestrial ecosystem -- trace metal -- tundra -- Arctic -- Russian Federation, Kola Peninsula -- Russian Federation, Taimyr Peninsula
Аннотация: As are other parts of the earth, arctic and subarctic territories are influenced by global, regional, and local air pollution. In Europe, the greatest load of airborne contaminants is observed in terrestrial ecosystems of the Kola Peninsula; in Asia, the greatest load is found in ecosystems of the Taimyr Peninsula, where large copper-nickel smelters are functioning. The studies described here for these regions encompassed local and regional deposition of pollutants (mainly sulfates and trace metals); changes in the composition, structure, productivity, and status of forest vegetation; morphological reactions of plant species and their regenerative activity; reforestation processes; successions; element composition of plants and soils; and biological activity of soils. The key findings of long-term studies are as follows. First, the symptoms of plant damage by air and soil pollutants in arctic and temperate zones are the same. Second, plants weakened by natural stresses have lower thresholds of sensitivity to airborn pollutants. Third, rapid destruction of northern plant communities by pollutants is often connected with a wide distribution of sensitive species (e.g., lichens) and previously weakened plants. Fourth, the specific structure of far northern forest and tundra ecosystems (in particular, open canopy and/or thin photosynthetic layer) and the severe climate produce some peculiarities in plant damage, namely (1) a large difference in the rate and intensity of damage to upper and lower parts of plants if the green parts are above or under snow in the winter, (2) simultaneous damage of different parts of stands that are above snow cover, and (3) an increase in the krummholz effect (stunted, low-lying branches) for evergreen coniferous trees. These findings were obtained for conditions of evident airborne contamination. The impact of low level regional pollutants on arctic and subartic vegetation is not sufficiently understood.
Scopus,
Полный текст
Держатели документа:
Sukachev Institute for Forest Research, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Alexeyev, V.A.