/ M. I. Bird, Y. N. Kalaschnikov // Tellus. Series B: Chemical and physical meteorology. - 2002. - Vol. 54B, № 5. - С. 631-641
Аннотация: We present soil organic carbon (SOC) inventories and carbon isotope compositions from over 900 samples collected in areas of minimally disturbed mature vegetation on freely drained soils (excluding peatlands) on a 1000 km transect along the Yennisey River, central Siberia. Carbon inventories over 0-30 cm depth range widely from 1.71 to 7.05 kg m(-2). While an effect of changing climate or vegetation along the transect cannot be ruled out, the observed differences in SOC inventories are largely the result of variations in mineral soil texture, with inventories in fine-textured soils being approximately double those in coarse-textured soils. The delta(13)C values of SOC in the 0-5 cm interval ranged from -26.3 to -28.0parts per thousand, with delta(13)C values for the 5-30 cm interval being 0.9 +/- 0.8parts per thousand (1sigma) enriched in C-13 relative to the 0-5 cm samples. The average delta(13)C value for the 0-5 cm interval for all samples was -27.1 +/- 0.6parts per thousand (1sigma) and for the full 0-30 cm interval the average was -26.5 +/- 0.5parts per thousand (1sigma). In general, delta(13)C values were higher in coarse-textured soils and lower in fine-textured soils. The results of detailed sampling of soils in Pinus sylvestris forest growing on sand near the Zotino flux tower suggest an SOC inventory in these soils of 2.22 +/- 0.35 kg m(-2) over 30 cm and an average delta(13)C value of -26.3 +/- 0.2parts per thousand over the 0-5 cm depth interval and -25.9 +/- 0.3parts per thousand over 0-30 cm. Recent burning had no effect on SOC inventories, but clearing has led to an average 25% decrease on SOC inventories from 0-30 cm over 12 yr. Neither burning nor clearing had a discernible effect on the delta(13)C value of SOC.
WOS,
Scopus
Держатели документа:
VN Sukachev Inst Forests, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Bird, M.I.; Бёрд М.И.; Kalaschnikov, Y.N.; Калашников, Евгений Никифорович
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
w10=
Найдено документов в текущей БД: 8
Microbial characteristics of soils on a latitudinal transect in Siberia
[Text] / H. . Santruckova [et al.] // Glob. Change Biol. - 2003. - Vol. 9, Is. 7. - P1106-1117, DOI 10.1046/j.1365-2486.2003.00596.x. - Cited References: 47
. - 12. - ISSN 1354-1013
РУБ Biodiversity Conservation + Ecology + Environmental Sciences
Аннотация: Soil microbial properties were studied from localities on a transect along the Yenisei River, Central Siberia. The 1000 km-long transect, from 56degreesN to 68degreesN, passed through tundra, taiga and pine forest characteristic of Northern Russia. Soil microbial properties were characterized by dehydrogenase activity, microbial biomass, composition of microbial community (PLFAs), respiration rates, denitrification and N mineralization rates. Relationships between vegetation, latitude, soil quality (pH, texture), soil organic carbon (SOC) and the microbial properties were examined using multivariate analysis. In addition, the temperature responses of microbial growth (net growth rate) and activity (soil respiration rate) were tested by laboratory experiments. The major conclusions of the study are as follows: 1. Multivariate analysis of the data revealed significant differences in microbial activity. SOC clay content was positively related to clay content. Soil texture and SOC exhibited the dominant effect on soil microbial parameters, while the vegetation and climatic effects (expressed as a function of latitude) were weaker but still significant. The effect of vegetation cover is linked to SOC quality, which can control soil microbial activity. 2. When compared to fine-textured soils, coarse-textured soils have (i) proportionally more SOC bound in microbial biomass, which might result in higher susceptibility of SOC transformation to fluctuation of environmental factors, and (ii) low mineralization potential, but with a substantial part of the consumed C being transformed to microbial products. 3. The soil microbial community from the northernmost study region located within the permafrost zone appears to be adapted to cold conditions. As a result, microbial net growth rate became negative when temperature rose above 5 degreesC and C mineralization then exceeded C accumulation.
WOS,
Полный текст,
Scopus
Держатели документа:
AS CR, Inst Soil Biol, CZ-37005 Ceske Budejovice, Czech Republic
Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia
Australian Natl Univ, Res Sch Biol Sci, Canberra, ACT 0200, Australia
Russian Acad Sci, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Severtsovs Inst Ecol & Evolut Problems, Moscow 117071, Russia
Max Planck Inst Biogeochem, D-07701 Jena, Germany
Доп.точки доступа:
Santruckova, H...; Bird, M.I.; Kalaschnikov, Y.N.; Grund, M...; Elhottova, D...; Simek, M...; Grigoryev, S...; Gleixner, G...; Arneth, A...; Schulze, E.D.; Lloyd, J...
Рубрики:
ORGANIC-MATTER
BIOMASS-C
ARCTIC TUNDRA
MINERAL SOIL
CO2 FLUX
CARBON
TEMPERATURE
NITROGEN
FOREST
DECOMPOSITION
Кл.слова (ненормированные):
latitudial transect -- microbial net growth rate -- soil microbial activity -- soil organic carbon -- temperature dependency -- texture
ORGANIC-MATTER
BIOMASS-C
ARCTIC TUNDRA
MINERAL SOIL
CO2 FLUX
CARBON
TEMPERATURE
NITROGEN
FOREST
DECOMPOSITION
Кл.слова (ненормированные):
latitudial transect -- microbial net growth rate -- soil microbial activity -- soil organic carbon -- temperature dependency -- texture
Аннотация: Soil microbial properties were studied from localities on a transect along the Yenisei River, Central Siberia. The 1000 km-long transect, from 56degreesN to 68degreesN, passed through tundra, taiga and pine forest characteristic of Northern Russia. Soil microbial properties were characterized by dehydrogenase activity, microbial biomass, composition of microbial community (PLFAs), respiration rates, denitrification and N mineralization rates. Relationships between vegetation, latitude, soil quality (pH, texture), soil organic carbon (SOC) and the microbial properties were examined using multivariate analysis. In addition, the temperature responses of microbial growth (net growth rate) and activity (soil respiration rate) were tested by laboratory experiments. The major conclusions of the study are as follows: 1. Multivariate analysis of the data revealed significant differences in microbial activity. SOC clay content was positively related to clay content. Soil texture and SOC exhibited the dominant effect on soil microbial parameters, while the vegetation and climatic effects (expressed as a function of latitude) were weaker but still significant. The effect of vegetation cover is linked to SOC quality, which can control soil microbial activity. 2. When compared to fine-textured soils, coarse-textured soils have (i) proportionally more SOC bound in microbial biomass, which might result in higher susceptibility of SOC transformation to fluctuation of environmental factors, and (ii) low mineralization potential, but with a substantial part of the consumed C being transformed to microbial products. 3. The soil microbial community from the northernmost study region located within the permafrost zone appears to be adapted to cold conditions. As a result, microbial net growth rate became negative when temperature rose above 5 degreesC and C mineralization then exceeded C accumulation.
WOS,
Полный текст,
Scopus
Держатели документа:
AS CR, Inst Soil Biol, CZ-37005 Ceske Budejovice, Czech Republic
Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia
Australian Natl Univ, Res Sch Biol Sci, Canberra, ACT 0200, Australia
Russian Acad Sci, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
Severtsovs Inst Ecol & Evolut Problems, Moscow 117071, Russia
Max Planck Inst Biogeochem, D-07701 Jena, Germany
Доп.точки доступа:
Santruckova, H...; Bird, M.I.; Kalaschnikov, Y.N.; Grund, M...; Elhottova, D...; Simek, M...; Grigoryev, S...; Gleixner, G...; Arneth, A...; Schulze, E.D.; Lloyd, J...
Recognition of forest textures on airphotos
/ M. N. Favorskaya [et al.] // Proceedings of the IASTED International Conference on Automation, Control, and Information Technology - Information and Communication Technology, ACIT-ICT 2010. - 2010. - IASTED International Conference on Automation, Control, and Information Technology - Information and Communication Technology, ACIT-ICT 2010 (15 June 2010 through 18 June 2010, Novosibirsk) Conference code: 89100. - P9-14
. -
Кл.слова (ненормированные):
Fractal -- Neural networks -- Remote sensing -- Statistic descriptors -- Texture -- Airphoto -- Complex task -- Image pyramids -- Laser scanning -- Lateral surface -- Morphological descriptors -- Pre-segmentation -- Statistical descriptors -- Texture recognition -- Communication -- Forestry -- Fractals -- Image segmentation -- Image texture -- Neural networks -- Remote sensing -- Textures -- Information technology -- Communication -- Forestry -- Image Analysis -- Neural Networks -- Remote Sensing -- Texture
Аннотация: Recognition of forest and its state on airphotos is one of important problems of natural resources monitoring. Automatic interpretation of forest textures photos is also a complex task which isn't finally solved. In this paper we propose new method of forest textures recognition based on two-level procedure: (1) the pre-segmentation of airphoto based on image pyramid and definition of statistical similarity regions, and (2) the texture recognition using neural network of direct propagation with input complex fractal and statistical descriptors and the post-segmentation of airphoto. Application of additional methods of laser scanning permits to recognize trees using not only upper crowns but also their lateral surfaces. Thereby we can estimate morphological descriptors of leaves mass of trees analyzing the set of airphotos.
Scopus
Держатели документа:
Siberian State Aerospace University, pr. Krasnoyarsky rabochiy, 31, Krasnoyarsk, 660014, Russian Federation
Institute of Forest SB RAS, Akademgorodok, 50/28, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Favorskaya, M.N.; Petukhov, N.Y.; Danilin, I.M.; Danilin, A.I.
Кл.слова (ненормированные):
Fractal -- Neural networks -- Remote sensing -- Statistic descriptors -- Texture -- Airphoto -- Complex task -- Image pyramids -- Laser scanning -- Lateral surface -- Morphological descriptors -- Pre-segmentation -- Statistical descriptors -- Texture recognition -- Communication -- Forestry -- Fractals -- Image segmentation -- Image texture -- Neural networks -- Remote sensing -- Textures -- Information technology -- Communication -- Forestry -- Image Analysis -- Neural Networks -- Remote Sensing -- Texture
Аннотация: Recognition of forest and its state on airphotos is one of important problems of natural resources monitoring. Automatic interpretation of forest textures photos is also a complex task which isn't finally solved. In this paper we propose new method of forest textures recognition based on two-level procedure: (1) the pre-segmentation of airphoto based on image pyramid and definition of statistical similarity regions, and (2) the texture recognition using neural network of direct propagation with input complex fractal and statistical descriptors and the post-segmentation of airphoto. Application of additional methods of laser scanning permits to recognize trees using not only upper crowns but also their lateral surfaces. Thereby we can estimate morphological descriptors of leaves mass of trees analyzing the set of airphotos.
Scopus
Держатели документа:
Siberian State Aerospace University, pr. Krasnoyarsky rabochiy, 31, Krasnoyarsk, 660014, Russian Federation
Institute of Forest SB RAS, Akademgorodok, 50/28, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Favorskaya, M.N.; Petukhov, N.Y.; Danilin, I.M.; Danilin, A.I.
Fusion of airborne LiDAR and digital photography data for tree crowns segmentation and measurement
/ M. Favorskaya [et al.] // Smart Innovation, Systems and Technologies. - 2015. - Vol. 40: 8th KES International Conference on Intelligent Interactive Multimedia Systems and Services, IIMSS-2015; Sorrento; Italy; 17 June 2015 through 19 June 2015; Code 157679. - P191-201, DOI 10.1007/978-3-319-19830-9_18
. -
Кл.слова (ненормированные):
Data fusion -- Forest inventory -- Higher-order active contour -- Lidar -- Shearlets -- Tree crown measurement -- Color photography -- Data fusion -- Digital cameras -- Forestry -- Geometrical optics -- Interactive computer systems -- Multimedia services -- Multimedia systems -- Photography -- Active contours -- Airborne Laser scanning -- Biomass measurements -- Forest inventory -- Individual tree crown -- Light detection and ranging -- Shearlets -- Tree crowns -- Optical radar
Аннотация: During airborne laser scanning, different types of information are available including Light Detection And Ranging (LiDAR) data as a cloud of 3D points, aerial digital photography data (hyperspectral or color visual images), and additional information about parameters of shooting. Difficulties of large image stitching due to parallax effects lead to distortions between ground truth 3D LiDAR coordinates and 2D visual coordinates of the same point. Our contribution is to develop a method for fusion of LiDAR and visual information for accurate segmentation of individual tree crowns in order to receive biomass measurements. The shearlet theory was used to improve boundaries and texture of airborne images. Also in this paper, a higher-order active contour model is applied for area evaluation of tree crowns in a plane. The received area measurements are promising and coincide with expert estimations providing accuracy 92–96%. The modeling results are good for non-Lambert space of forest. © Springer International Publishing Switzerland 2015.
Scopus,
WOS,
Смотреть статью
Держатели документа:
Siberian State Aerospace University, Institute of Informatics and Telecommunications, 31 Krasnoyarsky Rabochy, Krasnoyarsk, Russian Federation
Institute of Forest Russian Academy of Sciences, Siberian Branch, Akademgorodok, 50/28, Krasnoyarsk, Krasnoyarsk, Russian Federation
Department of Geography and Human Environment, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
Доп.точки доступа:
Favorskaya, M.; Tkacheva, A.; Danilin, I. M.; Medvedev, E. M.
Кл.слова (ненормированные):
Data fusion -- Forest inventory -- Higher-order active contour -- Lidar -- Shearlets -- Tree crown measurement -- Color photography -- Data fusion -- Digital cameras -- Forestry -- Geometrical optics -- Interactive computer systems -- Multimedia services -- Multimedia systems -- Photography -- Active contours -- Airborne Laser scanning -- Biomass measurements -- Forest inventory -- Individual tree crown -- Light detection and ranging -- Shearlets -- Tree crowns -- Optical radar
Аннотация: During airborne laser scanning, different types of information are available including Light Detection And Ranging (LiDAR) data as a cloud of 3D points, aerial digital photography data (hyperspectral or color visual images), and additional information about parameters of shooting. Difficulties of large image stitching due to parallax effects lead to distortions between ground truth 3D LiDAR coordinates and 2D visual coordinates of the same point. Our contribution is to develop a method for fusion of LiDAR and visual information for accurate segmentation of individual tree crowns in order to receive biomass measurements. The shearlet theory was used to improve boundaries and texture of airborne images. Also in this paper, a higher-order active contour model is applied for area evaluation of tree crowns in a plane. The received area measurements are promising and coincide with expert estimations providing accuracy 92–96%. The modeling results are good for non-Lambert space of forest. © Springer International Publishing Switzerland 2015.
Scopus,
WOS,
Смотреть статью
Держатели документа:
Siberian State Aerospace University, Institute of Informatics and Telecommunications, 31 Krasnoyarsky Rabochy, Krasnoyarsk, Russian Federation
Institute of Forest Russian Academy of Sciences, Siberian Branch, Akademgorodok, 50/28, Krasnoyarsk, Krasnoyarsk, Russian Federation
Department of Geography and Human Environment, Tel Aviv University, Ramat Aviv, Tel Aviv, Israel
Доп.точки доступа:
Favorskaya, M.; Tkacheva, A.; Danilin, I. M.; Medvedev, E. M.
Radiometric Study of Soil Profiles in the Infrared Band
/ T. V. Ponomareva, E. I. Ponomarev // Eurasian Soil Sci. - 2016. - Vol. 49, Is. 2. - P198-204, DOI 10.1134/S1064229316020083
. - ISSN 1064-2293
Аннотация: The applicability of radiometric survey of soil profiles in the infrared range for the analysis of soil physical properties was studied. Radiometric data were obtained for different dates of the growing season for a number of soil profiles. The specificity of temperature profiles of texture-differentiated soils (Luvisols and Retisols) as related to weather conditions of the growing season was examined. The correlation analysis showed a close relationship between the air and surface soil temperatures and between the radiometric and thermodynamic soil temperatures in the upper 10 cm. In the studied profiles, the gradient of radiometric temperatures reached 0.5–0.8°C/cm in the humus horizons and sharply decreased at the depth of more than 15–20 cm. The gradient analysis of radiometric images made it possible to outline the boundaries of soil horizons. For the texture-differentiated soils, the most distinct boundaries were established between the gray-humus AY horizon and the underlying eluvial EL horizon in podzolic soils and between the AY horizon and the underlying humus-eluvial AEL horizon in gray soils. © 2016, Pleiades Publishing, Ltd.
Scopus,
WOS
Держатели документа:
Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ponomareva, T. V.; Ponomarev, E. I.
Аннотация: The applicability of radiometric survey of soil profiles in the infrared range for the analysis of soil physical properties was studied. Radiometric data were obtained for different dates of the growing season for a number of soil profiles. The specificity of temperature profiles of texture-differentiated soils (Luvisols and Retisols) as related to weather conditions of the growing season was examined. The correlation analysis showed a close relationship between the air and surface soil temperatures and between the radiometric and thermodynamic soil temperatures in the upper 10 cm. In the studied profiles, the gradient of radiometric temperatures reached 0.5–0.8°C/cm in the humus horizons and sharply decreased at the depth of more than 15–20 cm. The gradient analysis of radiometric images made it possible to outline the boundaries of soil horizons. For the texture-differentiated soils, the most distinct boundaries were established between the gray-humus AY horizon and the underlying eluvial EL horizon in podzolic soils and between the AY horizon and the underlying humus-eluvial AEL horizon in gray soils. © 2016, Pleiades Publishing, Ltd.
Scopus,
WOS
Держатели документа:
Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Ponomareva, T. V.; Ponomarev, E. I.
Geochemical Features of Cryogenic and Al–Fe-Humus Soils of Mountainous Taiga in Northern Mongolia
/ Y. N. Krasnoshchekov // Eurasian Soil Sci. - 2021. - Vol. 54, Is. 1. - P25-37, DOI 10.1134/S1064229321010063
. - ISSN 1064-2293
Кл.слова (ненормированные):
altitudinal zones of forest vegetation -- concentration coefficients -- dispersion coefficients -- microelements -- physicochemical soil properties
Аннотация: Abstract: Geochemical features of permafrost-affected (Folic Protic Leptic Cryosols, Histic Protic Leptic Cryosols) and Al-Fe-humus soils (Folic Leptic Entic Podzols, Histic Leptic Entic Podzols) have been studied. These soils are widespread in taiga forests of Khentei, Eastern Sayan, and Khangai mountains. Data on the microelemental composition of parent rocks are given. The dispersion coefficients of most of the studied microelements in parent rocks relative to the lithosphere exceed 1.0, which indicates the predominance of processes of material removal. Differences in the concentrations of microelements in soils largely depend on the texture of parent rocks. Data on the morphology, physicochemical and chemical properties of soils and on the distribution of microelements in the soil profiles are discussed. The studied soils differ both in the absolute contents of microelements involved in the biological cycle and the intensity of their biogenic migration. The intensive biogenic migration of elements results in their accumulation in organic and raw-humus soil horizons and in the accumulative patterns of element distribution in the soils of the altitudinal zones of forest vegetation. In contrast to Cryosols, the organic and raw-humus horizons of Entic Podzols are characterized by a less intensive accumulation of microelements. In the Al–Fe-humus (spodic) horizon of Podzols, the concentrations of Pb, Cr, Mo, and B are above the clarke level. Spodic horizons of the studied soils act as chemosorption geochemical barrier for some biophilous elements and elements of the iron group. © 2021, Pleiades Publishing, Ltd.
Scopus
Держатели документа:
Sukachev Institute of Forest, Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Krasnoshchekov, Y. N.
Кл.слова (ненормированные):
altitudinal zones of forest vegetation -- concentration coefficients -- dispersion coefficients -- microelements -- physicochemical soil properties
Аннотация: Abstract: Geochemical features of permafrost-affected (Folic Protic Leptic Cryosols, Histic Protic Leptic Cryosols) and Al-Fe-humus soils (Folic Leptic Entic Podzols, Histic Leptic Entic Podzols) have been studied. These soils are widespread in taiga forests of Khentei, Eastern Sayan, and Khangai mountains. Data on the microelemental composition of parent rocks are given. The dispersion coefficients of most of the studied microelements in parent rocks relative to the lithosphere exceed 1.0, which indicates the predominance of processes of material removal. Differences in the concentrations of microelements in soils largely depend on the texture of parent rocks. Data on the morphology, physicochemical and chemical properties of soils and on the distribution of microelements in the soil profiles are discussed. The studied soils differ both in the absolute contents of microelements involved in the biological cycle and the intensity of their biogenic migration. The intensive biogenic migration of elements results in their accumulation in organic and raw-humus soil horizons and in the accumulative patterns of element distribution in the soils of the altitudinal zones of forest vegetation. In contrast to Cryosols, the organic and raw-humus horizons of Entic Podzols are characterized by a less intensive accumulation of microelements. In the Al–Fe-humus (spodic) horizon of Podzols, the concentrations of Pb, Cr, Mo, and B are above the clarke level. Spodic horizons of the studied soils act as chemosorption geochemical barrier for some biophilous elements and elements of the iron group. © 2021, Pleiades Publishing, Ltd.
Scopus
Держатели документа:
Sukachev Institute of Forest, Krasnoyarsk Science Center, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Krasnoshchekov, Y. N.
Geochemical Features of Cryogenic and Al-Fe-Humus Soils of Mountainous Taiga in Northern Mongolia
/ Y. N. Krasnoshchekov // Eurasian Soil Sci. - 2021. - Vol. 54, Is. 1. - P25-37, DOI 10.1134/S1064229321010063. - Cited References:40
. - ISSN 1064-2293. - ISSN 1556-195X
РУБ Soil Science
Кл.слова (ненормированные):
altitudinal zones of forest vegetation -- physicochemical soil properties -- microelements -- concentration coefficients -- dispersion coefficients
Аннотация: Geochemical features of permafrost-affected (Folic Protic Leptic Cryosols, Histic Protic Leptic Cryosols) and Al-Fe-humus soils (Folic Leptic Entic Podzols, Histic Leptic Entic Podzols) have been studied. These soils are widespread in taiga forests of Khentei, Eastern Sayan, and Khangai mountains. Data on the microelemental composition of parent rocks are given. The dispersion coefficients of most of the studied microelements in parent rocks relative to the lithosphere exceed 1.0, which indicates the predominance of processes of material removal. Differences in the concentrations of microelements in soils largely depend on the texture of parent rocks. Data on the morphology, physicochemical and chemical properties of soils and on the distribution of microelements in the soil profiles are discussed. The studied soils differ both in the absolute contents of microelements involved in the biological cycle and the intensity of their biogenic migration. The intensive biogenic migration of elements results in their accumulation in organic and raw-humus soil horizons and in the accumulative patterns of element distribution in the soils of the altitudinal zones of forest vegetation. In contrast to Cryosols, the organic and raw-humus horizons of Entic Podzols are characterized by a less intensive accumulation of microelements. In the Al-Fe-humus (spodic) horizon of Podzols, the concentrations of Pb, Cr, Mo, and B are above the clarke level. Spodic horizons of the studied soils act as chemosorption geochemical barrier for some biophilous elements and elements of the iron group.
WOS
Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Sukachev Inst Forest, Siberian Branch, Akad Gorodok 50-28, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Krasnoshchekov, Yu N.
Кл.слова (ненормированные):
altitudinal zones of forest vegetation -- physicochemical soil properties -- microelements -- concentration coefficients -- dispersion coefficients
Аннотация: Geochemical features of permafrost-affected (Folic Protic Leptic Cryosols, Histic Protic Leptic Cryosols) and Al-Fe-humus soils (Folic Leptic Entic Podzols, Histic Leptic Entic Podzols) have been studied. These soils are widespread in taiga forests of Khentei, Eastern Sayan, and Khangai mountains. Data on the microelemental composition of parent rocks are given. The dispersion coefficients of most of the studied microelements in parent rocks relative to the lithosphere exceed 1.0, which indicates the predominance of processes of material removal. Differences in the concentrations of microelements in soils largely depend on the texture of parent rocks. Data on the morphology, physicochemical and chemical properties of soils and on the distribution of microelements in the soil profiles are discussed. The studied soils differ both in the absolute contents of microelements involved in the biological cycle and the intensity of their biogenic migration. The intensive biogenic migration of elements results in their accumulation in organic and raw-humus soil horizons and in the accumulative patterns of element distribution in the soils of the altitudinal zones of forest vegetation. In contrast to Cryosols, the organic and raw-humus horizons of Entic Podzols are characterized by a less intensive accumulation of microelements. In the Al-Fe-humus (spodic) horizon of Podzols, the concentrations of Pb, Cr, Mo, and B are above the clarke level. Spodic horizons of the studied soils act as chemosorption geochemical barrier for some biophilous elements and elements of the iron group.
WOS
Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Sukachev Inst Forest, Siberian Branch, Akad Gorodok 50-28, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Krasnoshchekov, Yu N.
Pedogenetic and Geographic Features of Granuzems
/ Y. I. Yershov // Eurasian Soil Sci. - 2021. - Vol. 54, Is. 5. - P653-664, DOI 10.1134/S1064229321050070. - Cited References:38
. - ISSN 1064-2293. - ISSN 1556-195X
РУБ Soil Science
Кл.слова (ненормированные):
Subarctic -- Central Siberian Plateau -- mafic rocks -- glaciofluvial -- deposits -- rounded-grain aggregation -- soil classification
Аннотация: At present, the genesis, nomenclature, and classification of granuzems remain debatable, which is explained by scarce data on these soils. In this paper, data on granuzems described in the forest-tundra of the Norilsk depression, in the valleys of the Tukalanda, Akkit, and Khantaika rivers (68 degrees 30 ' N, 88 degrees 15 ' E) and in the northern taiga within the lower reaches of the Nizhnyaya Tunguska River (66 degrees 20 ' N, 89 degrees 00 ' E) are discussed. Genetic and geographic features of granuzems are closely related to the mineralogy and texture of their parent materials represented by moraine and glaciofluvial loamy and clayey sediments derived from quartz-containing dolerites. Granuzems are characterized by the strongly acid or acid to neutral reaction and, accordingly, by the low base saturation in the upper horizons and moderate base saturation in the lower horizons. Granuzems are characterized by the elevated content of humus of the fulvate composition (C-ha/C-fa < 1) and by the high content of oxalate-extractable iron. The main soil-forming processes are weathering and aggregation of the coagulative cryochemogenic nature. The horizon with strong rounded-grain or crumb-granular structure serves as a diagnostic horizon of granuzems. The surface litter horizon may have different thickness and decomposition degree.
WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Sukachev Inst Forest, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Yershov, Yu, I
Кл.слова (ненормированные):
Subarctic -- Central Siberian Plateau -- mafic rocks -- glaciofluvial -- deposits -- rounded-grain aggregation -- soil classification
Аннотация: At present, the genesis, nomenclature, and classification of granuzems remain debatable, which is explained by scarce data on these soils. In this paper, data on granuzems described in the forest-tundra of the Norilsk depression, in the valleys of the Tukalanda, Akkit, and Khantaika rivers (68 degrees 30 ' N, 88 degrees 15 ' E) and in the northern taiga within the lower reaches of the Nizhnyaya Tunguska River (66 degrees 20 ' N, 89 degrees 00 ' E) are discussed. Genetic and geographic features of granuzems are closely related to the mineralogy and texture of their parent materials represented by moraine and glaciofluvial loamy and clayey sediments derived from quartz-containing dolerites. Granuzems are characterized by the strongly acid or acid to neutral reaction and, accordingly, by the low base saturation in the upper horizons and moderate base saturation in the lower horizons. Granuzems are characterized by the elevated content of humus of the fulvate composition (C-ha/C-fa < 1) and by the high content of oxalate-extractable iron. The main soil-forming processes are weathering and aggregation of the coagulative cryochemogenic nature. The horizon with strong rounded-grain or crumb-granular structure serves as a diagnostic horizon of granuzems. The surface litter horizon may have different thickness and decomposition degree.
WOS
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Sukachev Inst Forest, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Yershov, Yu, I