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

[] / O. Masyagina [et al.] // Landslide Sci. Pract.: Global Environ. Change. - 2013. - Vol. 4: 2nd World Landslide Forum, WLF 2011 (3 October 2011 through 9 October 2011, Rome) Conference code: 104240. - P355-360, DOI 10.1007/978-3-642-31337-0-45 . -
Аннотация: In forested ecosystems developed on permafrost, solifluction processes are widespread, occur in years of above average summer-autumn precipitation and can cover up to 20 % of total area of slopes adjacent to rivers. This process is the most destructive natural disturbance event resulting in complete disappearance of initial ecosystems (vegetation cover and soil). To analyze postsliding ecosystem succession, sites of two ages (5 and 35 years old) after solifluction were chosen along with Nizhnyaya (Lower) Tunguska River valley. Results show that regeneration of soil respiration and eco-physiological status of microbial communities in soil during postsolifluction succession starts with vegetation re-establishment. As long as ecosystems regenerate, accumulated litter contains the main pool of microorganisms, though microbial biomass of 35-year-old solifluction area does not reach the value of microbial biomass in control plots. Therefore, forested ecosystems in permafrost zone after landsliding requires decades for final successful restoration of soil respiration and the microbial community. © Springer-Verlag Berlin Heidelberg 2013.

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Держатели документа:
Siberian Branch, V.N. Sukachev Institute of Forest, Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Masyagina, O.; Evgrafova, S.; Prokushkin, S.; Prokushkin, A.

/ C. -H. Cheng [et al.] // Geoderma. - 2016. - Vol. 265. - P187-195, DOI 10.1016/j.geoderma.2015.11.028 . - ISSN 0016-7061
Аннотация: Steep mountain terrain, fractured geological environments, and intense precipitation events are primary factors that contribute to frequent landslides in mountainous regions. Landslides exert an immense impact on forest ecosystems and substantially change soil properties; understanding these changes is crucial to facilitating subsequent forest revegetation and management. In this study, the effects of landslide on soil physicochemical properties were investigated in a moist montane forest ecosystem in Xitou, Central Taiwan. We established a dataset comprised historical soil survey data obtained in 1976 and data from soil samples taken in 2012 at the same locations to compare differences in soil properties after landslide deposition, and also conducted soil sampling along a landslide/nonlandslide affected sequence to determine how the degree of landslide deposition affected soil physicochemical properties. The results indicated that rock fragment content, soil pH value, bulk density, inorganic carbon, and base saturation increased following landslide deposition and that severe landslide deposition caused more substantial increases. By contrast, the thicknesses of the O and A horizons, soil organic carbon, total nitrogen, and cation-exchange capacity significantly decreased following landslides; these decreases were more substantial with increasing degree of landslide deposition. Exchangeable potassium, calcium, magnesium, and available phosphorus content, however, were unaffected by landslide deposition. The results demonstrated that soil physicochemical properties were significantly altered after landslide deposition; these resultant changes, particularly in regard to high soil pH value, poor structure, and low soil organic carbon and total nitrogen, are expected to influence functions in forest ecosystems. © 2015 Elsevier B.V.

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Держатели документа:
School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan
NTU Experimental Forest, National Taiwan University, Nantou, Taiwan
Institute of Forest SR RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Cheng, C.-H.; Hsiao, S.-C.; Huang, Y.-S.; Hung, C.-Y.; Pai, C.-W.; Chen, C.-P.; Menyailo, O. V.
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/ V. I. Kharuk [et al.] // Environ.Res.Lett. - 2016. - Vol. 11, Is. 4, DOI 10.1088/1748-9326/11/4/045004 . - ISSN 1748-9318
Аннотация: Climate impact on landslide occurrence and spatial patterns were analyzed within the larch-dominant communities associated with continuous permafrost areas of central Siberia. We used high resolution satellite imagery (i.e. QuickBird, WorldView) to identify landslide scars over an area of 62 000 km2. Landslide occurrence was analyzed with respect to climate variables (air temperature, precipitation, drought index SPEI), and Gravity Recovery and Climate Experiment satellite derived equivalent of water thickness anomalies (EWTA). Landslides were found only on southward facing slopes, and the occurrence of landslides increased exponentially with increasing slope steepness. Lengths of landslides correlated positively with slope steepness. The observed upper elevation limit of landslides tended to coincide with the tree line. Observations revealed landslides occurrence was also found to be strongly correlated with August precipitation (r = 0.81) and drought index (r = 0.7), with June-July-August soil water anomalies (i.e., EWTA, r = 0.68-0.7), and number of thawing days (i.e., a number of days with t max > 0 °C; r = 0.67). A significant increase in the variance of soil water anomalies was observed, indicating that occurrence of landslides may increase even with a stable mean precipitation level. The key-findings of this study are (1) landslides occurrence increased within the permafrost zone of central Siberia in the beginning of the 21st century; (2) the main cause of increased landslides occurrence are extremes in precipitation and soil water anomalies; and (3) landslides occurrence are strongly dependent on relief features such as southward facing steep slopes. © 2016 IOP Publishing Ltd.

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Держатели документа:
Sukachev Forest Institute, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, Krasnoyarsk, Russian Federation
NASA's Goddard Space Flight Center, Greenbelt, MD, United States

Доп.точки доступа:
Kharuk, V. I.; Shushpanov, A. S.; Im, S. T.; Ranson, K. J.

/ O. V. Masyagina, S. Y. Evgrafova, V. V. Kholodilova // . - 2017. - Vol. 5. - P231-237, DOI 10.1007/978-3-319-53483-1_26 . -
Аннотация: In boreal forests developed on permafrost, landslide processes are widespread, occur in years of above average summer-autumn precipitation and can cover up to 20% of total area of slopes adjacent to rivers. Permafrost landslides will escalate with climate change. These processes are the most destructive natural disturbance events resulting in complete disappearance of initial ecosystems (vegetation cover and soil). We have studied sites of landslides of different ages (occurred at 2009, 2001 and 1972) along with Nizhnyaya (Lower) Tunguska River and Kochechum River to analyze postsliding ecosystem changes. Just after the event (as at 1-year-old site in 2010), we registered drop in soil respiration, 3 times decreasing of microbial respiration contribution, 4 times lower mineral soil C and N content at bare soil (melkozem) middle location of a site. Results show that regeneration of soil respiration and eco-physiological status of microbial communities in soil during post disturbance succession starts with vegetation re-establishment and organic soil layer accumulation. As long as ecosystems regenerate (as at 35-year-old site), accumulated litter contains similar to control C and N content as well as the main pool of microorganisms, though microbial biomass and soil C and N content of old landslide area does not reach the value of these parameters in control plots. Therefore, forested ecosystems in permafrost area disturbed after landsliding requires decades for final successful restoration. © 2017, Springer International Publishing AG.

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Держатели документа:
Federal Research Center Krasnoyarsk Science Center SB RAS, Sukachev Institute of Forest SB RAS, Akademgorodok 50/28, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Masyagina, O. V.; Evgrafova, S. Y.; Kholodilova, V. V.

/ O. V. Masyagina [et al.] // Sci. Total Environ. - 2019. - Vol. 657. - P351-364, DOI 10.1016/j.scitotenv.2018.11.468 . - ISSN 0048-9697
Аннотация: Landslides are common in high-latitude forest ecosystems that have developed on permafrost. The most vulnerable areas in the permafrost territories of Siberia occur on the south-facing slopes of northern rivers, where they are observed on about 20% of the total area of river slopes. Landslide disturbances will likely increase with climate change especially due to increasing summer–autumn precipitation. These processes are the most destructive natural disturbance agent and lead to the complete removal of pre-slide forest ecosystems (vegetation cover and soil). To evaluate postsliding ecosystem succession, we undertook integrated ecological research at landslides of different age classes along the Nizhnyaya Tunguska River and the Kochechum River (Tura, Krasnoyarsk region, Russia). Just after the event (at the one-year-old site), we registered a drop in soil respiration, a threefold lower microbial respiration rate, and a fourfold smaller mineral soil carbon and nitrogen stock at bare soil (melkozem) plots at the middle location of the site as compared with the non-affected control site. The recovery of disturbed areas began with the re-establishment of plant cover and the following accumulation of an organic soil layer. During the 35-year succession (L1972), the accumulated layer (O-layer) at the oldest site contained similar C- and N stocks to those found at the control sites. However, the mineral soil C- and N stocks and the microbial biomass – even of the oldest landslide area – did not reach the value of these parameters in control plots. Later, the soil respiration level and the eco-physiological status of soil microbiota also recovered due to these changes. This study demonstrates that the recovery after landslides in permafrost forests takes several decades. In addition, the degradation of permafrost due to landslides clearly hinders the accumulation of soil organic matter in the mineral soil. © 2018 Elsevier B.V.

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Держатели документа:
Sukachev Institute of Forest SB RAS, Federal Research Center «Krasnoyarsk Science Center SB RAS», 50/28 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny pr, Krasnoyarsk, 660041, Russian Federation
GFZ German Research Centre for Geosciences, Section Geomicrobiology, Telegrafenberg C-425, Potsdam, 14473, Germany
Institute of Earth and Environmental Sciences, University of Potsdam, Potsdam, 14476, Germany

Доп.точки доступа:
Masyagina, O. V.; Evgrafova, S. Y.; Bugaenko, T. N.; Kholodilova, V. V.; Krivobokov, L. V.; Korets, M. A.; Wagner, D.

/ O. V. Masyagina, S. Y. Evgrafova, V. V. Kholodilova, S. G. Prokushkin // Landslides. - 2020, DOI 10.1007/s10346-020-01550-z . - Article in press. - ISSN 1612-510X
Аннотация: Landslides are one of the main reasons for permafrost degradation in high latitudes. Any landslides consist of different top-down slope zones: removal, transit-depletion, and accumulation zones. These slope parts can demonstrate different successional behavior of plant community and carbon (C) cycling during post-sliding seral stages. To address this issue, soil respiration (SR), hydrothermal conditions (mineral soil temperature at a depth of 5 cm (ST5, °C), and gravimetric soil water content at a depth of 0–5 cm in mineral soil horizon (SWC5, %)), total soil C (TC) and nitrogen (TN) contents, and soil microbial activity at the middle (depletion zone) and lower (accumulation zone) slope parts of the landslides with different history have been studied. The most significant differences between the middle and lower slope positions were found at the ground microsites (or G-plots) of the L2001 landslide. Thus, here, a midslope part occurred to be a high source of C compared to the lower part. Midslope of L2001 was characterized by significantly higher SR at G-plots as well because of better hydrothermal conditions and more intensive vegetation regeneration. The accumulation zone of L2001 characterized by the lower SR despite significantly higher microbial activity due to the high nutrient level of the soil moved from the top, likely favored to promotion of the soil C stabilization processes. Despite the registered ST5 differences in the E-plots and the G-plots between middle and lower slope positions of the L1972 landslide, SR, TC, TN, and soil microbial activity did not differ significantly. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.

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Держатели документа:
Sukachev Institute of Forest SB RAS, Federal Research Center «Krasnoyarsk Science Center SB RAS», 50/28 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny Ave., Krasnoyarsk, 660041, Russian Federation
Melnikov Permafrost Institute SB RAS, 36 Merzlotnaya St, Yakutsk, 677010, Russian Federation

Доп.точки доступа:
Masyagina, O. V.; Evgrafova, S. Y.; Kholodilova, V. V.; Prokushkin, S. G.

/ O. V. Masyagina, S. Y. Evgrafova, V. V. Kholodilova, S. G. Prokushkin // Landslides. - 2020. - Vol. 17, Is. 11. - P2577-2587, DOI 10.1007/s10346-020-01550-z. - Cited References:17. - The reported study was supported by the Russian Foundation for Basic Research (18-41-242003, 18-54-52005) and RFBR-NSFC (project.19-54-53026). . - ISSN 1612-510X. - ISSN 1612-5118РУБ Engineering, Geological + Geosciences, Multidisciplinary

Аннотация: Landslides are one of the main reasons for permafrost degradation in high latitudes. Any landslides consist of different top-down slope zones: removal, transit-depletion, and accumulation zones. These slope parts can demonstrate different successional behavior of plant community and carbon (C) cycling during post-sliding seral stages. To address this issue, soil respiration (SR), hydrothermal conditions (mineral soil temperature at a depth of 5 cm (ST5, degrees C), and gravimetric soil water content at a depth of 0-5 cm in mineral soil horizon (SWC5, %)), total soil C (TC) and nitrogen (TN) contents, and soil microbial activity at the middle (depletion zone) and lower (accumulation zone) slope parts of the landslides with different history have been studied. The most significant differences between the middle and lower slope positions were found at the ground microsites (or G-plots) of the L2001 landslide. Thus, here, a midslope part occurred to be a high source of C compared to the lower part. Midslope of L2001 was characterized by significantly higher SR at G-plots as well because of better hydrothermal conditions and more intensive vegetation regeneration. The accumulation zone of L2001 characterized by the lower SR despite significantly higher microbial activity due to the high nutrient level of the soil moved from the top, likely favored to promotion of the soil C stabilization processes. Despite the registered ST5 differences in the E-plots and the G-plots between middle and lower slope positions of the L1972 landslide, SR, TC, TN, and soil microbial activity did not differ significantly.

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Держатели документа:
RAS, SB, Krasnoyarsk Sci Ctr, Sukachev Inst Forest,Fed Res Ctr, 50-28 Akademgorodok, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, 79 Svobodny Ave, Krasnoyarsk 660041, Russia.
RAS, Melnikov Permafrost Inst, SB, 36 Merzlotnaya St, Yakutsk 677010, Russia.

Доп.точки доступа:
Masyagina, Oxana V.; Evgrafova, Svetlana Yu.; Kholodilova, Valentina V.; Prokushkin, Stanislav G.; Masyagina, Oxana; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-41-242003, 18-54-52005]; RFBR-NSFC