: материалы временных коллективов / A. E. Petrenko // 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. 34-35
Аннотация: Measurements of conifers tree ring width from 280 dendrochronological sites were analyzed for Russia. Tree-ring series by the cambial age of the ring (also known as regional growth curves) were fitted with negative-exponential curve using maximum and minimum ring width and a constant related to site as the parameters of approximation.
Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28
Доп.точки доступа:
Петренко, Алексей Евгеньевич
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
w10=
Найдено документов в текущей БД: 11
Fire return intervals within the northern boundary of the larch forest in Central Siberia
/ V. I. Kharuk, M. L. Dvinskaya, K. J. Ranson // Int. J. Wildland Fire. - 2013. - Vol. 22, Is. 2. - P207-211, DOI 10.1071/WF11181. - Cited References: 28. - This research was supported by the SB RAS Program Number 27.33, and NASA Science Mission Directorate, Terrestrial Ecology Program. The authors thank Dr Joanne Howl for editing the manuscript.
. - 5. - ISSN 1049-8001
РУБ Forestry
Аннотация: A fire history of northern larch forests was studied. These larch forests are found near the northern limit of their range at similar to 71 degrees N, where fires are predominantly caused by lightning strikes rather than human activity. Fire-return intervals (FRIs) were calculated based on fire scars and dates of tree natality. Tree natality was used as an approximation of the date of the last fire. The average FRI was found to be 295 +/- 57 years, which is the longest reported for larch-dominated stands. Prior studies reported 80-90-year FRIs at 64 degrees N and similar to 200 years near the latitude of the Arctic Circle. Comparing data from fires that occurred in 1700-1849 (end of the Little Ice Age, LIA) and 1850-1999 (post-LIA warming) indicates approximately twice as many fires occurred during the latter period. This agrees with the hypothesis that observed climatic warming will result in an increase in fire frequency. Our results also indicate that fires that did not leave visible fire scars on the tree stem may be identified based on the date of growth release revealed from dendrochronology.
WOS,
Scopus
Держатели документа:
[Kharuk, Vyacheslav I.
Dvinskaya, Mariya L.] Siberian Fed Univ, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Ranson, K. Jon] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Dvinskaya, M.L.; Ranson, K.J.
Рубрики:
BOREAL FOREST
EVERGREEN CONIFERS
CLIMATE-CHANGE
TREE-RINGS
FREQUENCY
EMISSIONS
WILDFIRE
REGIMES
Кл.слова (ненормированные):
Larix gmelinii -- wildfires
BOREAL FOREST
EVERGREEN CONIFERS
CLIMATE-CHANGE
TREE-RINGS
FREQUENCY
EMISSIONS
WILDFIRE
REGIMES
Кл.слова (ненормированные):
Larix gmelinii -- wildfires
Аннотация: A fire history of northern larch forests was studied. These larch forests are found near the northern limit of their range at similar to 71 degrees N, where fires are predominantly caused by lightning strikes rather than human activity. Fire-return intervals (FRIs) were calculated based on fire scars and dates of tree natality. Tree natality was used as an approximation of the date of the last fire. The average FRI was found to be 295 +/- 57 years, which is the longest reported for larch-dominated stands. Prior studies reported 80-90-year FRIs at 64 degrees N and similar to 200 years near the latitude of the Arctic Circle. Comparing data from fires that occurred in 1700-1849 (end of the Little Ice Age, LIA) and 1850-1999 (post-LIA warming) indicates approximately twice as many fires occurred during the latter period. This agrees with the hypothesis that observed climatic warming will result in an increase in fire frequency. Our results also indicate that fires that did not leave visible fire scars on the tree stem may be identified based on the date of growth release revealed from dendrochronology.
WOS,
Scopus
Держатели документа:
[Kharuk, Vyacheslav I.
Dvinskaya, Mariya L.] Siberian Fed Univ, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Ranson, K. Jon] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
Доп.точки доступа:
Kharuk, V.I.; Dvinskaya, M.L.; Ranson, K.J.
PRELIMINARY DATA ON BODY MOVEMENT OF FREELY FLYING BUTTERFLIES
[Текст] / D. L. GRODNITSKY // Zool. Zhurnal. - 1993. - Vol. 72, Is. 7. - С. 84-94. - Cited References: 48
. - 11. - ISSN 0044-5134
РУБ Zoology
Аннотация: Vertical and horizontal periodic movements of the body following each wing stroke were investigated in three butterfly species during their free flight in a transparent cage. Distribution of the movements along the stroke cycle shows that specimens climb during downstroke, supination, and upstroke. Pronation of the wings in the top of their trajectory (Weis-Fogh's clap-and-fling mechanisms) is followed by height reduction. The horizontal distance that insects cover during pronation and downstroke exceeded mean value and it was less than the mean value during supination and upstroke. The data acquired suggest that distributions in lift and thrust along a stroke cycle are characterized by sinusoid-like curves as a first approximation. Maximal lift is generated during the end of each downstroke, while the maximal thrust coincides in time with the end of the upstroke and the clap of the wings. A new non-steady mechanism of aerodynamic force generation is proposed. The mechanism is connected with air throwing off the flapping planes during their pronation and supination. Horizontal flight speed is negatively correlated with the angle between the body and the horizon, but does not depend on wing beat frequency. A hypothesis is suggested that insect flapping flight power regulation system includes a finite number of stable kinematic patterns each corresponding to a particular flight mode and characterized by specific values of intimately correlated stroke parameters.
Доп.точки доступа:
GRODNITSKY, D.L.
Рубрики:
WING-BEAT FREQUENCY
TETHERED FLIGHT
LOCUSTA-MIGRATORIA
LIFT
LEPIDOPTERA
KINEMATICS
PAPILIONOIDEA
DROSOPHILA
BEHAVIOR
TUNNEL
WING-BEAT FREQUENCY
TETHERED FLIGHT
LOCUSTA-MIGRATORIA
LIFT
LEPIDOPTERA
KINEMATICS
PAPILIONOIDEA
DROSOPHILA
BEHAVIOR
TUNNEL
Аннотация: Vertical and horizontal periodic movements of the body following each wing stroke were investigated in three butterfly species during their free flight in a transparent cage. Distribution of the movements along the stroke cycle shows that specimens climb during downstroke, supination, and upstroke. Pronation of the wings in the top of their trajectory (Weis-Fogh's clap-and-fling mechanisms) is followed by height reduction. The horizontal distance that insects cover during pronation and downstroke exceeded mean value and it was less than the mean value during supination and upstroke. The data acquired suggest that distributions in lift and thrust along a stroke cycle are characterized by sinusoid-like curves as a first approximation. Maximal lift is generated during the end of each downstroke, while the maximal thrust coincides in time with the end of the upstroke and the clap of the wings. A new non-steady mechanism of aerodynamic force generation is proposed. The mechanism is connected with air throwing off the flapping planes during their pronation and supination. Horizontal flight speed is negatively correlated with the angle between the body and the horizon, but does not depend on wing beat frequency. A hypothesis is suggested that insect flapping flight power regulation system includes a finite number of stable kinematic patterns each corresponding to a particular flight mode and characterized by specific values of intimately correlated stroke parameters.
Доп.точки доступа:
GRODNITSKY, D.L.
The comparative toxicity to soil invertebrates of natural chemicals and their synthetic analogues
/ J. Whitaker [et al.] // Chemosphere. - 2009. - Vol. 76, Is. 3. - P345-352, DOI 10.1016/j.chemosphere.2009.03.060
. - ISSN 0045-6535
Кл.слова (ненормированные):
Anthraquinone -- Ecotoxicity -- Napthoquinone -- Risk assessment -- Anthraquinone -- Comparative data -- Comparative toxicity -- Differential sensitivity -- Earthworm reproduction -- Ecotoxicity -- Enchytraeids -- Extrapolation methods -- Invertebrate species -- Juglone -- Mode of toxic actions -- Naphthoquinone -- Napthoquinone -- Napthoquinones -- Quinizarin -- Soil invertebrates -- Synthetic analogues -- Synthetic chemicals -- Toxic chemicals -- Toxicity test -- Approximation theory -- Chemicals -- Extrapolation -- Functional groups -- Ketones -- Risk assessment -- Risk management -- Risk perception -- Toxicity -- 1,4 naphthoquinone -- 1,4 naphthoquinone derivative -- anthraquinone derivative -- emodin -- juglone -- quinizarin -- comparative study -- earthworm -- ecotoxicology -- hypothesis testing -- invertebrate -- mite -- reproduction -- risk assessment -- soil microorganism -- sublethal effect -- survival -- toxicity test -- article -- collembolan -- comparative study -- controlled study -- earthworm -- enchytraeid -- invertebrate -- mite -- nonhuman -- predictive validity -- reproduction -- soil invertebrate -- soil organism -- survival -- toxicity -- toxicity testing -- Animals -- Anthraquinones -- Ecotoxicology -- Emodin -- Naphthoquinones -- Oligochaeta -- Organic Chemicals -- Reproduction -- Risk Assessment -- Soil -- Acari -- Enchytraeidae -- Hypoaspis aculeifer -- Invertebrata
Аннотация: The introduction of Registration, Evaluation and Authorisation of Chemicals (REACH), requires companies to register and risk assess all substances produced or imported in volumes of >1 tonne per year. Extrapolation methods which use existing data for estimating the effects of chemicals are attractive to industry, and comparative data are therefore increasingly in demand. Data on natural toxic chemicals could be used for extrapolation methods such as read-across. To test this hypothesis, the toxicity of natural chemicals and their synthetic analogues were compared using standardised toxicity tests. Two chemical pairs: the napthoquinones, juglone (natural) and 1,4-naphthoquinone (synthetic); and anthraquinones, emodin (natural) and quinizarin (synthetic) were chosen, and their comparative effects on the survival and reproduction of collembolans, earthworms, enchytraeids and predatory mites were assessed. Differences in sensitivity between the species were observed with the predatory mite (Hypoaspis aculeifer) showing the least sensitivity. Within the chemical pairs, toxicity to lethal and sub-lethal endpoints was very similar for the four invertebrate species. The exception was earthworm reproduction, which showed differential sensitivity to the chemicals in both naphthoquinone and anthraquinone pairs. Differences in toxicity identified in the present study may be related to degree of exposure and/or subtle differences in the mode of toxic action for the chemicals and species tested. It may be possible to predict differences by identifying functional groups which infer increased or decreased toxicity in one or other chemical. The development of such techniques would enable the use of read-across from natural to synthetic chemicals for a wider group of compounds. В© 2009 Elsevier Ltd. All rights reserved.
Scopus
Держатели документа:
Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
Division of Zoology, School of Animal and Microbial Sciences, University of Reading, Reading, RG6 6AJ, United Kingdom
WRc PLC, Blagrove Park, Swindon, SN5 8YF, United Kingdom
Syngenta, Jealott's Hill International Research Centre, Bracknell, RG42 6EY, United Kingdom
Reckitt Benckiser, Dansom Lane, Hull, HU8 7DS, United Kingdom
Доп.точки доступа:
Whitaker, J.; Chaplow, J.S.; Potter, E.; Scott, W.A.; Hopkin, S.; Harman, M.; Sims, I.; Sorokin, N.
Кл.слова (ненормированные):
Anthraquinone -- Ecotoxicity -- Napthoquinone -- Risk assessment -- Anthraquinone -- Comparative data -- Comparative toxicity -- Differential sensitivity -- Earthworm reproduction -- Ecotoxicity -- Enchytraeids -- Extrapolation methods -- Invertebrate species -- Juglone -- Mode of toxic actions -- Naphthoquinone -- Napthoquinone -- Napthoquinones -- Quinizarin -- Soil invertebrates -- Synthetic analogues -- Synthetic chemicals -- Toxic chemicals -- Toxicity test -- Approximation theory -- Chemicals -- Extrapolation -- Functional groups -- Ketones -- Risk assessment -- Risk management -- Risk perception -- Toxicity -- 1,4 naphthoquinone -- 1,4 naphthoquinone derivative -- anthraquinone derivative -- emodin -- juglone -- quinizarin -- comparative study -- earthworm -- ecotoxicology -- hypothesis testing -- invertebrate -- mite -- reproduction -- risk assessment -- soil microorganism -- sublethal effect -- survival -- toxicity test -- article -- collembolan -- comparative study -- controlled study -- earthworm -- enchytraeid -- invertebrate -- mite -- nonhuman -- predictive validity -- reproduction -- soil invertebrate -- soil organism -- survival -- toxicity -- toxicity testing -- Animals -- Anthraquinones -- Ecotoxicology -- Emodin -- Naphthoquinones -- Oligochaeta -- Organic Chemicals -- Reproduction -- Risk Assessment -- Soil -- Acari -- Enchytraeidae -- Hypoaspis aculeifer -- Invertebrata
Аннотация: The introduction of Registration, Evaluation and Authorisation of Chemicals (REACH), requires companies to register and risk assess all substances produced or imported in volumes of >1 tonne per year. Extrapolation methods which use existing data for estimating the effects of chemicals are attractive to industry, and comparative data are therefore increasingly in demand. Data on natural toxic chemicals could be used for extrapolation methods such as read-across. To test this hypothesis, the toxicity of natural chemicals and their synthetic analogues were compared using standardised toxicity tests. Two chemical pairs: the napthoquinones, juglone (natural) and 1,4-naphthoquinone (synthetic); and anthraquinones, emodin (natural) and quinizarin (synthetic) were chosen, and their comparative effects on the survival and reproduction of collembolans, earthworms, enchytraeids and predatory mites were assessed. Differences in sensitivity between the species were observed with the predatory mite (Hypoaspis aculeifer) showing the least sensitivity. Within the chemical pairs, toxicity to lethal and sub-lethal endpoints was very similar for the four invertebrate species. The exception was earthworm reproduction, which showed differential sensitivity to the chemicals in both naphthoquinone and anthraquinone pairs. Differences in toxicity identified in the present study may be related to degree of exposure and/or subtle differences in the mode of toxic action for the chemicals and species tested. It may be possible to predict differences by identifying functional groups which infer increased or decreased toxicity in one or other chemical. The development of such techniques would enable the use of read-across from natural to synthetic chemicals for a wider group of compounds. В© 2009 Elsevier Ltd. All rights reserved.
Scopus
Держатели документа:
Centre for Ecology and Hydrology, Lancaster Environment Centre, Library Avenue, Bailrigg, Lancaster, LA1 4AP, United Kingdom
Division of Zoology, School of Animal and Microbial Sciences, University of Reading, Reading, RG6 6AJ, United Kingdom
WRc PLC, Blagrove Park, Swindon, SN5 8YF, United Kingdom
Syngenta, Jealott's Hill International Research Centre, Bracknell, RG42 6EY, United Kingdom
Reckitt Benckiser, Dansom Lane, Hull, HU8 7DS, United Kingdom
Доп.точки доступа:
Whitaker, J.; Chaplow, J.S.; Potter, E.; Scott, W.A.; Hopkin, S.; Harman, M.; Sims, I.; Sorokin, N.
Approximation of the High-Temperature Fire Zone Based on Terra/MODIS Data in the Problem of Subpixel Analysis
/ E. I. Ponomarev, K. Y. Litvintsev, E. G. Shvetsov [et al.] // Izv. Atmos. Ocean Phys. - 2019. - Vol. 55, Is. 8. - P884-892, DOI 10.1134/S0001433819080073
. - ISSN 0001-4338
Кл.слова (ненормированные):
active burning zone -- approximation -- fire radiative power -- intensity -- remote data -- sub-pixel analysis -- accuracy assessment -- fire -- high temperature -- MODIS -- radiative forcing -- remote sensing -- satellite data -- satellite imagery -- Terra (satellite) -- Siberia
Аннотация: Abstract: In this work, an improved approach of the pixel-based analysis of the Terra/MODIS imagery is proposed. The approach allows us to improve the accuracy in estimating characteristics of the combustion zone when detecting thermal anomalies. The investigation is carried out based on the imagery of active vegetation fires in Siberian forests by the MODIS radiometer in the spectral ranges of 3930 to 3990 and 10 780 to 11 280 ?m (bands 21 and 31, respectively). It is proposed to describe the approximation of the temperature profile of the fire front using an exponential function. Using the nonuniform approximation of the temperature distribution on the surface in the vicinity of the active combustion zone allows us to determine the portion of the active pixel of the Terra/MODIS image with the given temperature excess over the background temperature in it. This improves the accuracy in extracting active combustion zones and classifying the heat release rate at the subpixel level. This approach is applicable to monitoring fire development phases in the near real time mode. © 2019, Pleiades Publishing, Ltd.
Scopus
Держатели документа:
Federal Research Center “Krasnoyarsk Science Center”, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
Доп.точки доступа:
Ponomarev, E. I.; Litvintsev, K. Y.; Shvetsov, E. G.; Finnikov, K. A.; Yakimov, N. D.
Кл.слова (ненормированные):
active burning zone -- approximation -- fire radiative power -- intensity -- remote data -- sub-pixel analysis -- accuracy assessment -- fire -- high temperature -- MODIS -- radiative forcing -- remote sensing -- satellite data -- satellite imagery -- Terra (satellite) -- Siberia
Аннотация: Abstract: In this work, an improved approach of the pixel-based analysis of the Terra/MODIS imagery is proposed. The approach allows us to improve the accuracy in estimating characteristics of the combustion zone when detecting thermal anomalies. The investigation is carried out based on the imagery of active vegetation fires in Siberian forests by the MODIS radiometer in the spectral ranges of 3930 to 3990 and 10 780 to 11 280 ?m (bands 21 and 31, respectively). It is proposed to describe the approximation of the temperature profile of the fire front using an exponential function. Using the nonuniform approximation of the temperature distribution on the surface in the vicinity of the active combustion zone allows us to determine the portion of the active pixel of the Terra/MODIS image with the given temperature excess over the background temperature in it. This improves the accuracy in extracting active combustion zones and classifying the heat release rate at the subpixel level. This approach is applicable to monitoring fire development phases in the near real time mode. © 2019, Pleiades Publishing, Ltd.
Scopus
Держатели документа:
Federal Research Center “Krasnoyarsk Science Center”, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russian Federation
Доп.точки доступа:
Ponomarev, E. I.; Litvintsev, K. Y.; Shvetsov, E. G.; Finnikov, K. A.; Yakimov, N. D.
Approximation of the High-Temperature Fire Zone Based on Terra/MODIS Data in the Problem of Subpixel Analysis
/ E. I. Ponomarev, K. Y. Litvintsev, E. G. Shvetsov [et al.] // Izv. Atmos. Ocean. Phys. - 2019. - Vol. 55, Is. 8. - P884-892, DOI 10.1134/S0001433819080073. - Cited References:21. - This work was performed as part of state contract nos. 0356-2019-0009 (0356-2017-0739) and 0356-20180052 and was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk krai, and Krasnoyarsk Regional Science Foundation (project nos. 17-41-240475 "Development of the mathematical model for the quantitative estimation of carbon emission during fires in Siberian forests based on remote instrument measurements" and 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").
. - ISSN 0001-4338. - ISSN 1555-628X
РУБ Meteorology & Atmospheric Sciences + Oceanography
Аннотация: In this work, an improved approach of the pixel-based analysis of the Terra/MODIS imagery is proposed. The approach allows us to improve the accuracy in estimating characteristics of the combustion zone when detecting thermal anomalies. The investigation is carried out based on the imagery of active vegetation fires in Siberian forests by the MODIS radiometer in the spectral ranges of 3930 to 3990 and 10780 to 11280 mu m (bands 21 and 31, respectively). It is proposed to describe the approximation of the temperature profile of the fire front using an exponential function. Using the nonuniform approximation of the temperature distribution on the surface in the vicinity of the active combustion zone allows us to determine the portion of the active pixel of the Terra/MODIS image with the given temperature excess over the background temperature in it. This improves the accuracy in extracting active combustion zones and classifying the heat release rate at the subpixel level. This approach is applicable to monitoring fire development phases in the near real time mode.
WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, Novosibirsk 630090, Russia.
Доп.точки доступа:
Ponomarev, E. I.; Litvintsev, K. Yu.; Shvetsov, E. G.; Finnikov, K. A.; Yakimov, N. D.; Russian Foundation for Basic Research, Government of Krasnoyarsk krai; Krasnoyarsk Regional Science Foundation [17-41-240475, 18-41-242003]; [0356-2019-0009 (0356-2017-0739)]; [0356-20180052]
Рубрики:
IDENTIFICATION
Кл.слова (ненормированные):
remote data -- active burning zone -- fire radiative power -- intensity -- approximation -- sub-pixel analysis
IDENTIFICATION
Кл.слова (ненормированные):
remote data -- active burning zone -- fire radiative power -- intensity -- approximation -- sub-pixel analysis
Аннотация: In this work, an improved approach of the pixel-based analysis of the Terra/MODIS imagery is proposed. The approach allows us to improve the accuracy in estimating characteristics of the combustion zone when detecting thermal anomalies. The investigation is carried out based on the imagery of active vegetation fires in Siberian forests by the MODIS radiometer in the spectral ranges of 3930 to 3990 and 10780 to 11280 mu m (bands 21 and 31, respectively). It is proposed to describe the approximation of the temperature profile of the fire front using an exponential function. Using the nonuniform approximation of the temperature distribution on the surface in the vicinity of the active combustion zone allows us to determine the portion of the active pixel of the Terra/MODIS image with the given temperature excess over the background temperature in it. This improves the accuracy in extracting active combustion zones and classifying the heat release rate at the subpixel level. This approach is applicable to monitoring fire development phases in the near real time mode.
WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, Novosibirsk 630090, Russia.
Доп.точки доступа:
Ponomarev, E. I.; Litvintsev, K. Yu.; Shvetsov, E. G.; Finnikov, K. A.; Yakimov, N. D.; Russian Foundation for Basic Research, Government of Krasnoyarsk krai; Krasnoyarsk Regional Science Foundation [17-41-240475, 18-41-242003]; [0356-2019-0009 (0356-2017-0739)]; [0356-20180052]
630;221.01;630*114.68
Д 46
Д 46
Динамика микробной биомассы, ее структура и функциональная активность в почвах при лесовозобновлении на вырубках пихтарников Енисейского кряжа
[Текст] : статья / А. В. Богородская, А. С. Шишикин // Почвоведение. - 2020. - № 1. - С. 119-130 : рис., DOI 10.31857/S0032180X20010050
. - ISSN 0032-180X
Перевод заглавия: Dynamics of Microbial Biomass,its Structure and Functional Activity on Soils of Restores Felled Areas in Fir Forests of the Yenisei Ridge
Кл.слова (ненормированные):
пихтовые насаждения -- вырубки -- дерново-подзолистые почвы -- базальное дыхание -- соотношение грибы/бактерии -- запас углерода микробной биомассы -- микробное продуцирование CO2
Аннотация: Изучена динамика микробной биомассы, ее структура и функциональная активность в почвах вырубок пихтарников южной тайги Енисейского кряжа (Красноярский край), находящихся на разных стадиях естественных восстановительных сукцессий растительности. В верхних органо-минеральных горизонтах дерново-подзолистой почвы (Albic Glossic Retisol (Loamic, Cutanic, Ochric)) сукцессионной серии вырубок, восстанавливающихся через смену пихтарников на производные березняки, выявлен рост содержания углерода микробной биомассы (Смик) и интенсивности базального дыхания от свежей вырубки к стадии лиственного жердняка, в профиле которого наиболее высокие общие запасы Смик (170 г С/м3) и микробная продукция СО2 (528 мг СО2–С/(м3 ч)), превышающие контроль на 80–85%. В гумусово-аккумулятивном горизонте названного ряда вырубок отмечена тенденция снижения как доли грибного субстрат-индуцированного дыхания, так и отношения грибы/бактерии по сравнению с контролем. В средневозрастных лиственных насаждениях с темнохвойным подростом все рассматриваемые параметры микробных комплексов снижаются, но продолжают превышать контроль. В профиле дерново-подзолистой почвы лесовосстановительной серии без смены пород за 8-летний период отмечен тренд уменьшения Смик и базального дыхания и уже на стадии пихтового жердняка приближение всех эколого-функциональных параметров микробного комплекса к контрольному мелкотравно-зеленомошному пихтарнику
The dynamics of microbial biomass, its structure and functional activity in soils of felling areas in southern taiga fir forests have been studied; they represented different stages of natural regenerative successions. In the upper organomineral horizons of soddy-podzolic soils (Albic Glossic Retisol (Loamic, Cutanic, Ochric)) of the succession series after felling, recovering through a substitution of fir by birch, an increase in the content of Cmic and the intensity of basal respiration from recent felling to the stage of pole-wood is noted. The soil of pole-wood stage has the highest total reserves of Cmic (170 g C/m3) and microbial production of CO2 (528 mg СО2–С/m3 per hour), exceeding control by 80–85%. In the humus-accumulative soil horizon of the studied succession series, there was a tendency of decreasing both the proportion of fungal to the total substrate-induced respiration, and the ratio of fungi/bacteria in comparison with the control. In the middle-aged deciduous forests with dark-coniferous undergrowth, all the considered parameters of the microbial complexes decreased, but continue to exceed the control. In the profile of soddy-podzolic soil of the reforestation series without species change for 8-year period, the trend of reducing Cmic and BR was noted; already at the stage of fir of pole-wood the approximation of all ecological-functional parameters of the microbial complex to the control short grass–green moss fir forests was observed
Статья в РИНЦ
Держатели документа:
Институт леса им. В.Н. Сукачева СО РАН
Доп.точки доступа:
Богородская, Анна Викторовна; Bogorodskaya, Anna Viktorovna; Шишикин, Александр Сергеевич; Shishikin, Alexandr Sergyeyevich
Перевод заглавия: Dynamics of Microbial Biomass,its Structure and Functional Activity on Soils of Restores Felled Areas in Fir Forests of the Yenisei Ridge
| УДК |
Кл.слова (ненормированные):
пихтовые насаждения -- вырубки -- дерново-подзолистые почвы -- базальное дыхание -- соотношение грибы/бактерии -- запас углерода микробной биомассы -- микробное продуцирование CO2
Аннотация: Изучена динамика микробной биомассы, ее структура и функциональная активность в почвах вырубок пихтарников южной тайги Енисейского кряжа (Красноярский край), находящихся на разных стадиях естественных восстановительных сукцессий растительности. В верхних органо-минеральных горизонтах дерново-подзолистой почвы (Albic Glossic Retisol (Loamic, Cutanic, Ochric)) сукцессионной серии вырубок, восстанавливающихся через смену пихтарников на производные березняки, выявлен рост содержания углерода микробной биомассы (Смик) и интенсивности базального дыхания от свежей вырубки к стадии лиственного жердняка, в профиле которого наиболее высокие общие запасы Смик (170 г С/м3) и микробная продукция СО2 (528 мг СО2–С/(м3 ч)), превышающие контроль на 80–85%. В гумусово-аккумулятивном горизонте названного ряда вырубок отмечена тенденция снижения как доли грибного субстрат-индуцированного дыхания, так и отношения грибы/бактерии по сравнению с контролем. В средневозрастных лиственных насаждениях с темнохвойным подростом все рассматриваемые параметры микробных комплексов снижаются, но продолжают превышать контроль. В профиле дерново-подзолистой почвы лесовосстановительной серии без смены пород за 8-летний период отмечен тренд уменьшения Смик и базального дыхания и уже на стадии пихтового жердняка приближение всех эколого-функциональных параметров микробного комплекса к контрольному мелкотравно-зеленомошному пихтарнику
The dynamics of microbial biomass, its structure and functional activity in soils of felling areas in southern taiga fir forests have been studied; they represented different stages of natural regenerative successions. In the upper organomineral horizons of soddy-podzolic soils (Albic Glossic Retisol (Loamic, Cutanic, Ochric)) of the succession series after felling, recovering through a substitution of fir by birch, an increase in the content of Cmic and the intensity of basal respiration from recent felling to the stage of pole-wood is noted. The soil of pole-wood stage has the highest total reserves of Cmic (170 g C/m3) and microbial production of CO2 (528 mg СО2–С/m3 per hour), exceeding control by 80–85%. In the humus-accumulative soil horizon of the studied succession series, there was a tendency of decreasing both the proportion of fungal to the total substrate-induced respiration, and the ratio of fungi/bacteria in comparison with the control. In the middle-aged deciduous forests with dark-coniferous undergrowth, all the considered parameters of the microbial complexes decreased, but continue to exceed the control. In the profile of soddy-podzolic soil of the reforestation series without species change for 8-year period, the trend of reducing Cmic and BR was noted; already at the stage of fir of pole-wood the approximation of all ecological-functional parameters of the microbial complex to the control short grass–green moss fir forests was observed
Статья в РИНЦ
Держатели документа:
Институт леса им. В.Н. Сукачева СО РАН
Доп.точки доступа:
Богородская, Анна Викторовна; Bogorodskaya, Anna Viktorovna; Шишикин, Александр Сергеевич; Shishikin, Alexandr Sergyeyevich
The Effect of Post-Fire Disturbances on a Seasonally Thawed Layer in the Permafrost Larch Forests of Central Siberia
/ E. Ponomarev, O. Masyagina, K. Litvintsev [et al.] // Forests. - 2020. - Vol. 11, Is. 8. - Ст. 790, DOI 10.3390/f11080790. - Cited References:57. - This work was performed using the subject of a project no. 0356-2019-0009, research was funded by the Russian Foundation for Basic Research (RFBR) and Government of the Krasnoyarsk krai, and Krasnoyarsk krai Foundation for Research and Development Support, 18-41-242003 "Modeling and satellite monitoring of effects from thermal anomalies of the underlying surface in the STL of the permafrost zone of Siberia".
. - ISSN 1999-4907
РУБ Forestry
Аннотация: We examined and simulated the consequences of the degradation of the litter and the moss-lichen layer after fire impact, which could affect the seasonal temperature of the soil and the depth of the seasonally thawed layer (STL) in the permafrost zone. According to the analysis of satellite imagery for 2000 to 2019, the fire-disturbed area in the region of interest amounted to 20%. The main aims of the study included quantitative evaluation of the variation range of summer temperature anomalies at fire-damaged plots, summarizing the statistical norm of the STL depending on natural conditions, and numerical simulation of the response of the STL. Using Terra and Aqua/MODIS imagery, we analyzed surface temperature (in bands of lambda = 10.780-11.280 and 11.770-12.270 mu m) coupled with the normalized difference vegetation index (NDVI) for non-disturbed and fire-damaged sites under the same natural conditions of larch forests in Central Siberia. Heat transfer, freezing and thawing processes were numerically simulated for two extreme cases of soil conditions: dry soil and water-saturated soil. The model was also applied to soil with non-homogeneous water content. As input parameters, we used data on the properties of cryogenic soils collected in larch forests (Larix gmelinii) in the flat-mountainous taiga region of the Evenkia (Central Siberia). For post-fire plots, surface temperature anomalies observed during summer months remained significant for more than 15-20 years after fire impact, while the NDVI values were restored to the statistical norm within 7-10 years of the fire. According to the results of numerical simulation, the thickness of the STL could show a 30-50% increase compared to the statistical norm. In the first approximation, we showed the annual soil temperature dynamics at various depths in disturbed and non-disturbed plots.
WOS
Держатели документа:
Russian Acad Sci, Fed Res Ctr Krasnoyarsk Sci Ctr, Siberian Branch, VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Inst Ecol & Geog, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, Novosibirsk 630090, Russia.
Доп.точки доступа:
Ponomarev, Evgenii; Masyagina, Oxana; Litvintsev, Kirill; Ponomareva, Tatiana; Shvetsov, Evgeny; Finnikov, Konstantin; Evgenii, Ponomarev; Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [0356-2019-0009]; Government of the Krasnoyarsk krai; Krasnoyarsk krai Foundation for Research and Development Support [18-41-242003]
Рубрики:
SOIL-TEMPERATURE
CLIMATE-CHANGE
DYNAMICS
STANDS
COVER
FIRES
Кл.слова (ненормированные):
wildfires -- disturbance -- permafrost -- thermal anomaly -- seasonally thawed -- layer -- soil -- temperature -- numerical simulation -- remote sensing -- Siberia
SOIL-TEMPERATURE
CLIMATE-CHANGE
DYNAMICS
STANDS
COVER
FIRES
Кл.слова (ненормированные):
wildfires -- disturbance -- permafrost -- thermal anomaly -- seasonally thawed -- layer -- soil -- temperature -- numerical simulation -- remote sensing -- Siberia
Аннотация: We examined and simulated the consequences of the degradation of the litter and the moss-lichen layer after fire impact, which could affect the seasonal temperature of the soil and the depth of the seasonally thawed layer (STL) in the permafrost zone. According to the analysis of satellite imagery for 2000 to 2019, the fire-disturbed area in the region of interest amounted to 20%. The main aims of the study included quantitative evaluation of the variation range of summer temperature anomalies at fire-damaged plots, summarizing the statistical norm of the STL depending on natural conditions, and numerical simulation of the response of the STL. Using Terra and Aqua/MODIS imagery, we analyzed surface temperature (in bands of lambda = 10.780-11.280 and 11.770-12.270 mu m) coupled with the normalized difference vegetation index (NDVI) for non-disturbed and fire-damaged sites under the same natural conditions of larch forests in Central Siberia. Heat transfer, freezing and thawing processes were numerically simulated for two extreme cases of soil conditions: dry soil and water-saturated soil. The model was also applied to soil with non-homogeneous water content. As input parameters, we used data on the properties of cryogenic soils collected in larch forests (Larix gmelinii) in the flat-mountainous taiga region of the Evenkia (Central Siberia). For post-fire plots, surface temperature anomalies observed during summer months remained significant for more than 15-20 years after fire impact, while the NDVI values were restored to the statistical norm within 7-10 years of the fire. According to the results of numerical simulation, the thickness of the STL could show a 30-50% increase compared to the statistical norm. In the first approximation, we showed the annual soil temperature dynamics at various depths in disturbed and non-disturbed plots.
WOS
Держатели документа:
Russian Acad Sci, Fed Res Ctr Krasnoyarsk Sci Ctr, Siberian Branch, VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Inst Ecol & Geog, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Kutateladze Inst Thermophys, Siberian Branch, Novosibirsk 630090, Russia.
Доп.точки доступа:
Ponomarev, Evgenii; Masyagina, Oxana; Litvintsev, Kirill; Ponomareva, Tatiana; Shvetsov, Evgeny; Finnikov, Konstantin; Evgenii, Ponomarev; Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [0356-2019-0009]; Government of the Krasnoyarsk krai; Krasnoyarsk krai Foundation for Research and Development Support [18-41-242003]
Modeling the radial stem growth of the pine (Pinus sylvestris l.) forests using the satellite-derived ndvi and lst (modis/aqua) data
/ Y. Ivanova, A. Kovalev, V. Soukhovolsky // Atmosphere. - 2021. - Vol. 12, Is. 1. - Ст. 12. - P1-15, DOI 10.3390/atmos12010012
. - ISSN 2073-4433
Кл.слова (ненормированные):
Boreal forests -- Field measurements -- Modeling studies of forest -- Remote sensing data analysis -- Tree and forest functioning -- Tree ring width -- Land surface temperature -- Radiometers -- Satellites -- Time series analysis -- Developed model -- Growing season -- Measurements of -- Normalized difference vegetation index -- Parabolic approximation -- Pinus sylvestris -- Principal Components -- Tree-ring width -- Forestry -- Aqua (satellite) -- boreal forest -- coniferous tree -- growth rate -- land surface -- modeling -- MODIS -- NDVI -- phytomass -- principal component analysis -- remote sensing -- satellite data -- surface temperature -- tree ring -- Pinus sylvestris
Аннотация: The paper considers a new approach to modeling the relationship between the increase in woody phytomass in the pine forest and satellite-derived Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) (MODIS/AQUA) data. The developed model combines the phenological and forest growth processes. For the analysis, NDVI and LST (MODIS) satellite data were used together with the measurements of tree-ring widths (TRW). NDVI data contain features of each growing season. The models include parameters of parabolic approximation of NDVI and LST time series transformed using principal component analysis. The study shows that the current rate of TRW is determined by the total values of principal components of the satellite indices over the season and the rate of tree increment in the preceding year. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Scopus
Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Sukachev Institute of Forest SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Ivanova, Y.; Kovalev, A.; Soukhovolsky, V.
Кл.слова (ненормированные):
Boreal forests -- Field measurements -- Modeling studies of forest -- Remote sensing data analysis -- Tree and forest functioning -- Tree ring width -- Land surface temperature -- Radiometers -- Satellites -- Time series analysis -- Developed model -- Growing season -- Measurements of -- Normalized difference vegetation index -- Parabolic approximation -- Pinus sylvestris -- Principal Components -- Tree-ring width -- Forestry -- Aqua (satellite) -- boreal forest -- coniferous tree -- growth rate -- land surface -- modeling -- MODIS -- NDVI -- phytomass -- principal component analysis -- remote sensing -- satellite data -- surface temperature -- tree ring -- Pinus sylvestris
Аннотация: The paper considers a new approach to modeling the relationship between the increase in woody phytomass in the pine forest and satellite-derived Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) (MODIS/AQUA) data. The developed model combines the phenological and forest growth processes. For the analysis, NDVI and LST (MODIS) satellite data were used together with the measurements of tree-ring widths (TRW). NDVI data contain features of each growing season. The models include parameters of parabolic approximation of NDVI and LST time series transformed using principal component analysis. The study shows that the current rate of TRW is determined by the total values of principal components of the satellite indices over the season and the rate of tree increment in the preceding year. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
Scopus
Держатели документа:
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Sukachev Institute of Forest SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Ivanova, Y.; Kovalev, A.; Soukhovolsky, V.
Modeling the Radial Stem Growth of the Pine (Pinus sylvestris L.) Forests Using the Satellite-Derived NDVI and LST (MODIS/AQUA) Data
/ Y. Ivanova, A. Kovalev, V. Soukhovolsky // Atmosphere. - 2021. - Vol. 12, Is. 1. - Ст. 12, DOI 10.3390/atmos12010012. - Cited References:51. - This research was funded by RFBR according to the research project number 18-04-00119-a.
. - ISSN 2073-4433
РУБ Environmental Sciences + Meteorology & Atmospheric Sciences
Кл.слова (ненормированные):
boreal forests -- tree and forest functioning -- tree ring width -- field -- measurements -- remote sensing data analysis -- modeling studies of forest
Аннотация: The paper considers a new approach to modeling the relationship between the increase in woody phytomass in the pine forest and satellite-derived Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) (MODIS/AQUA) data. The developed model combines the phenological and forest growth processes. For the analysis, NDVI and LST (MODIS) satellite data were used together with the measurements of tree-ring widths (TRW). NDVI data contain features of each growing season. The models include parameters of parabolic approximation of NDVI and LST time series transformed using principal component analysis. The study shows that the current rate of TRW is determined by the total values of principal components of the satellite indices over the season and the rate of tree increment in the preceding year.
WOS
Держатели документа:
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Krasnoyarsk 660036, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Ivanova, Yulia; Kovalev, Anton; Soukhovolsky, Vlad; RFBRRussian Foundation for Basic Research (RFBR) [18-04-00119-a]
Кл.слова (ненормированные):
boreal forests -- tree and forest functioning -- tree ring width -- field -- measurements -- remote sensing data analysis -- modeling studies of forest
Аннотация: The paper considers a new approach to modeling the relationship between the increase in woody phytomass in the pine forest and satellite-derived Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) (MODIS/AQUA) data. The developed model combines the phenological and forest growth processes. For the analysis, NDVI and LST (MODIS) satellite data were used together with the measurements of tree-ring widths (TRW). NDVI data contain features of each growing season. The models include parameters of parabolic approximation of NDVI and LST time series transformed using principal component analysis. The study shows that the current rate of TRW is determined by the total values of principal components of the satellite indices over the season and the rate of tree increment in the preceding year.
WOS
Держатели документа:
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Inst Biophys, Krasnoyarsk 660036, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Krasnoyarsk 660036, Russia.
RAS, Krasnoyarsk Sci Ctr SB, Fed Res Ctr, Sukachev Inst Forest, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Ivanova, Yulia; Kovalev, Anton; Soukhovolsky, Vlad; RFBRRussian Foundation for Basic Research (RFBR) [18-04-00119-a]
Nonlinear approximation of wildfire front temperature on MODIS data for sub-pixel analysis of burning
/ K. Yu. Litvintsev, E. I. Ponomarev, E. G. Shvetsov // CEUR Workshop Proceedings : CEUR-WS, 2021. - Vol. 3006: 2021 All-Russian Conference with International Participation ""Spatial Data Processing for Monitoring of Natural and Anthropogenic Processes"", SDM 2021 (24 August 2021 through 27 August 2021, ) Conference code: 173807. - P161-171
. -
Кл.слова (ненормированные):
Active combustion zone -- Radiation -- Remote data -- Sub-pixel analysis -- Wildfire
Аннотация: An improved approach to evaluate thermal anomalies characteristics using the pixel-based analysis of the MODIS imagery was proposed. The approach allows us to improve the accuracy in estimating characteristics of active combustion zones comparing to the standard Dozier method. We used the imagery of active wildfires in Siberian forests from the MODIS radiometer acquired in the spectral ranges of 3.930–3.990 and 10.780–11.280 ?m (bands 21 and 31, respectively). Nonlinear exponential function was used to describe the approximation of the temperature of combustion zones. Available data of field and numerical experiments were used for validating of the approximation accuracy. Nonlinear approximation of wildfire front temperature allows to determine the portion of the active pixel of the MODIS image with the given temperature excess comparing to the temperature of background cover. This improves the accuracy in extracting of active burning zones as well as in classifying the heat release rate at the sub-pixel level of analysis. © 2021 Copyright for this paper by its authors.
Scopus
Держатели документа:
S.S. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russian Federation
V.N. Sukachev Institute of Forest, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Litvintsev, K. Yu.; Ponomarev, E. I.; Shvetsov, E. G.
Кл.слова (ненормированные):
Active combustion zone -- Radiation -- Remote data -- Sub-pixel analysis -- Wildfire
Аннотация: An improved approach to evaluate thermal anomalies characteristics using the pixel-based analysis of the MODIS imagery was proposed. The approach allows us to improve the accuracy in estimating characteristics of active combustion zones comparing to the standard Dozier method. We used the imagery of active wildfires in Siberian forests from the MODIS radiometer acquired in the spectral ranges of 3.930–3.990 and 10.780–11.280 ?m (bands 21 and 31, respectively). Nonlinear exponential function was used to describe the approximation of the temperature of combustion zones. Available data of field and numerical experiments were used for validating of the approximation accuracy. Nonlinear approximation of wildfire front temperature allows to determine the portion of the active pixel of the MODIS image with the given temperature excess comparing to the temperature of background cover. This improves the accuracy in extracting of active burning zones as well as in classifying the heat release rate at the sub-pixel level of analysis. © 2021 Copyright for this paper by its authors.
Scopus
Держатели документа:
S.S. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russian Federation
V.N. Sukachev Institute of Forest, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Litvintsev, K. Yu.; Ponomarev, E. I.; Shvetsov, E. G.