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

[Text] / A. V. Bogorodskaya, N. D. Sorokin // Eurasian Soil Sci. - 2006. - Vol. 39, Is. 10. - P1136-1143, DOI 10.1134/S1064229306100115. - Cited References: 21 . - 8. - ISSN 1064-2293РУБ Soil Science

Аннотация: The structure and functions of the microbial complexes in the soils after surface fires of different intensity were studied. The fires of high and medium intensity were found to lead to a significant decrease in the number and functional activity of microorganisms participating in the nitrogen-carbon cycle. The degree of changes in the postfire status of the soil microbocenoses was revealed to be related to the joint action of pyrogenesis and the hydrothermal conditions at the moment of the fire rather than to the fire intensity. The favorable combination of the elevated soil moisture and soil heating stimulates the microbiological processes of organic matter mineralization, thus, improving the forest-growing conditions for the pine forests. The microbial biomass, basal respiration, and the microbial metabolic coefficient are shown to adequately reflect the postfire status of the microbial complexes.

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

Доп.точки доступа:
Bogorodskaya, A.V.; Sorokin, N.D.

[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 0282-7581РУБ 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.

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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]

/ E. I. Ponomarev, T. V. Ponomareva, A. S. Prokushkin // Water. - 2019. - Vol. 11, Is. 6, DOI 10.3390/w11061146. - Cited References:37. - This research was funded by the Russian Foundation for Basic Research (RFBR) grant number 17-04-00589 "Radiometric method for quantitative analysis of soils structure organization", RFBR and Government of the Krasnoyarsk krai, and Krasnoyarsk krai Foundation for Research and Development Support, grant number 18-41-242003 "Modeling and satellite monitoring of effects from thermal anomalies of the underlying surface in the seasonally thawed soil layer of the permafrost zone of Siberia" and grant number 18-05-60203-Arktika "Landscape and hydrobiological controls on the transport of terrigenic carbon to the Arctic Ocean". . - ISSN 2073-4441РУБ Water Resources

Аннотация: This study demonstrates the dependence between the forest burning rates and abnormal decrease in Siberian river discharges under the conditions of the permafrost zone. Our study area is in Central Siberia and Eastern Siberia/Yakutia. Four rivers (Podkamennaya Tunguska, Lower Tunguska, Aldan, and Viluy) were selected for the study. We analyzed the long-term and seasonal variation of river discharges (archive of The Global Runoff Data Centre for 1939-2015) together with the forest burning dynamics within the river basins (archive of Sukachev Institute of Forest for 1996-2015). We compared the discharges per year with the 77-year average value. Abnormally low levels of discharge constituted 58-78% of the averaged annual rate. An analysis of available chronologies of extreme fire events and relative burned areas (RBAs) showed a high correlation with intra-seasonal data on the runoff minima. The most significant response of river discharges to the wildfire effect was shown for the late summer/autumn season after extreme wildfires during the summer period. The deficit of the runoff was not explained by a low precipitation. Late summer and autumn anomalies of discharge were typical (r = -0.57...-0.77, p < 0.05) for rivers of Central Siberia in seasons of extreme forest burning. The correlation was lower for rivers of Eastern Siberia/Yakutia.

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Держатели документа:
RAS, Fed Res Ctr, VN Sukachev Inst Forest SB, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Ecol & Geog, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Ponomarev, Evgenii I.; Ponomareva, Tatiana V.; Prokushkin, Anatoly S.; Russian Foundation for Basic Research (RFBR) [17-04-00589]; Krasnoyarsk krai Foundation for Research and Development Support [18-41-242003, 18-05-60203-Arktika]; Government of the Krasnoyarsk krai

/ V. I. Kharuk [et al.] // Contemp. Probl. Ecol. - 2019. - Vol. 12, Is. 4. - P299-309, DOI 10.1134/S199542551904005X. - Cited References:38. - This work was supported by the Russian Foundation for Basic Research, project nos. 18-45-240003 and 18-05-00432. Dendrochronological and dendroclimatic analysis was performed with support from the Russian Science Foundation, project no. 17-74-10113. . - ISSN 1995-4255. - ISSN 1995-4263РУБ Ecology

Аннотация: The radial increment of Abies sibirica Ledeb. and mortality dynamics of fir stands in the mountain forests of the Eastern Sayan (Stolby State Nature Reserve) have been analyzed. The unprecedented decline in fir stands is caused by water stress due to an increase in air temperature and synergy with the impact of the Polygraphus proximus Blandford. This xylophage was not previously observed in the Abies sibirica range. In the initial phase of climate warming, an increase in radial increment was observed, which was replaced by a depression in 1985-2017. The declining of fir trees was preceded by an increase in the relationship between growth index and SPEI, as well as between the growth index and root-zone moisture content. At the same time, the growth index of the declining cohort was more closely associated with the root zone moisture content (r(2) = 0.56) and SPEI (r(2) = 0.74) than the growth index of the surviving cohort (r(2) = 0.15 and r(2) = 0.39, respectively). The decline in fir began in the 2000s, when Polygraphus proximus Blandford attacked trees Abies sibirica. During this period, dead stands were localized mainly on the relief elements with the highest probability of water stress (steep slopes located in a "rain shadow"). By 2017, the decline spread throughout the entire territory of fir stands, which led to the mortality of similar to 75% of fir stands. During the period of tree decline, a close relationship was observed between growth index and fir mortality (r = -0.79). The surviving trees grew under conditions of a higher root-zone humidity (compared to declining trees). The proximity of growth-index trajectories of cohorts of declining and surviving trees, which indicates the probability of mortality of surviving trees in the context of a predicted climate aridity increase, is noteworthy.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.
Stolby State Nat Reserve, Krasnoyarsk 660006, Russia.

Доп.точки доступа:
Kharuk, V. I.; Shushpanov, A. S.; Petrov, I. A.; Demidko, D. A.; Im, S. T.; Knorre, A. A.; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-45-240003, 18-05-00432]; Russian Science FoundationRussian Science Foundation (RSF) [17-74-10113]