scholarly journals Soil-forming processes in profile textural-differentiated forest soils of the Cis-Carpathian region, Ukraine

2020 ◽  
Vol 26 (2) ◽  
Author(s):  
Taras Yamelynets ◽  
Zinoviy Pankiv ◽  
Stepan Malyk
Keyword(s):  
Diagnostic Criteria ◽  
Forest Soils ◽  
Soil Formation ◽  
Controversial Issues ◽  
Climate Conditions ◽  
Podzolic Soils ◽  
Carpathian Region ◽  
Genetic Nature ◽  
History Of ◽  
Soil Forming Processes

Throughout the history of soil science development, one of the most controversial issues was the explanation of the genesis of the profile textural-differentiated soils influenced by forest vegetation and climate conditions within the Cis-Carpathian region, Ukraine. Scientists' views on the formation of the eluvial-illuvial, namely granulometric content, and profile differentiation have been and remain ambiguous due to the contradictory criteria of diagnosing the processes of eluvial soil degradation (lessivage, podzolization, eluvial-gleying process) and the almost similar results of these processes. The complexity and ambiguous interpretation of the genetic nature of the profile textural-differentiated soils of the Cis-Carpathian region necessitates the development of clear diagnostic criteria for revealing their genetic nature. The purpose of the work is to establish the diagnostic criteria of elementary soil-forming processes in profile textural-differentiated forest soils of the Cis-Carpathian region based on the analysis of data on soil properties previously collected by the authors. It has been established that in sod-podzolic soils formed under forest, the main profile-forming elementary process of soil formation is podzolization, which is characterized by the negative values of the eluvial-accumulative coefficients and the coefficient of change of the silicate part for the upper three horizons. The processes of lessivage and segregation are of little intensity in this type of soils. The main profile-forming elementary processes of soil formation in brown-podzolic soils (Neocambic Gleyic Retisols) are lessivage and inner soil argillization with little podzolization, the eluvial-gleying process and segregation effects. Keywords: forest soils, argillanes, neoplasms, ortsteins, podsolization, elementary soil-forming processes, Cis-Carpathian region

scholarly journals Grey forest soils in the different classification systems

2017 ◽  
pp. 120-134
Author(s):  
Halyna Ivanyuk
Keyword(s):  
Forest Soils ◽  
Soil Classification ◽  
Classification Systems ◽  
Soil Taxonomy ◽  
Podzolic Soils ◽  
Urgent Task ◽  
The World ◽  
History Of ◽  
Diagnostic Horizons

According to various data, the area of grey forest soils in the world is 94–120.2 million ha, in Ukraine – 4.7–5.5 million ha (about 9 % of the country’s territory). The diversity of conditions for the formation of these soils, discussions about their genesis are the causes of different approaches to the classification of grey forest soils. The history of the classification of grey forest soils is analysed; the most common variants of their classification in Ukraine are presented. Seeking to find approximate equivalents, an attempt to find grey forest soils in the classification systems of different countries (Russia, Moldova, Bulgaria, Romania, Czech Republic, Poland, USA, Canada), as well as in the legend of the FAO-UNESCO map and the WRB has been made. To establish exact analogues of soils practically it is impossible due to different principles of classification’s construction. Modern soil classifications of different countries are as close as possible to WRB and “Soil Taxonomy”. The following names of grey forest soils are identified as the most grounded: light grey forest, grey forest and dark grey podzolic. The following equivalents of the WRB nomenclature (2014) for sub-types of grey forest soils are offered: light grey forest – Albic Luvisols, grey forest – Haplic Luvisols, dark grey podzolic – Luvic Greyzemic Phaeozems. To the names of analogues of these soils with gleyic properties, the qualifier “Gleyic” should be added before the name of the reference soil group. The urgent task for soil scientists of Ukraine is to create a new soil classification that would preserve the acquisitions of genetic soil science but took into account the world trends: the allocation of diagnostic horizons and features that have clearly defined quantitative boundaries. In the new classification, it is proposed to combine the light grey and grey forest soils by a separate group, dark grey podzolic soils to be grouped together in a group with podzolic chernozems. The need for such selection is confirmed by the study of the dark grey soils position in different classification systems of the world, most of which these soils are in the chernozemic type group (Mollisols, Phaeozems and Chernozems). Key words: classification, grey forest soils, Greyzems, Luvisols, Mollisols, Phaeozems.

REVIEW OF STUDIES OF PERIODICALLY EXCESSIVELY MOISTENED SOILS IN THE STONE STEPPE

1970 ◽  
pp. 17-23 ◽  
Author(s):  
V. A. Isaev ◽  
A. L. Ivanov
Keyword(s):  
Soil Properties ◽  
Soil Formation ◽  
Farming Systems ◽  
Anthropogenic Factors ◽  
Black Sea Region ◽  
History Of ◽  
Central Black Sea Region ◽  
Destructive Processes ◽  
Soil Forming Processes ◽  
Soil Institute

There were several periods in the history of studying the soils of the Stone Steppe, starting with the works of V.V. Dokuchaev and his closest students are distinguished. Subsequent studies were a peculiar tribute to the founder of the doctrine of soils and a desire to make a feasible contribution to the common cause – the soil science development by the example of a comprehensive chernozems study and their associated soils. An example of a resurgence of interest in soil-forming processes taking place in the Stone Steppe can be considered the formation in 1984 at the initiative of the All-Union Agricultural Academy of Agricultural Sciences of the Central Black Earth Integrated Expedition on the base of the V.V. Dokuchaev Soil institute to conduct research in the Central Black Sea Region (Kursk, Voronezh and Belgorod regions). As in the time of V.V. Dokuchaev the catalyst for research was degradation processes in soils associated at that time with intensifying processes of water-logging of chernozems. The article are dealt with on different stages of studying the Stone Steppe soils as well as some current problems of soil transformation as a result of changing climatic parameters, the usage of different farming systems in a corner of the steppe nature that is difficult in composition of the soil cover. The purpose of the work is to once again show against the background of the historical stages of the study of the Stone Steppe soils that soil formation processes are extremely mobile, sensitively react by varying soil properties to all natural and anthropogenic factors. The revealed resent trends in soil properties changes in time and space will create the basis for the development of optimal methods of farming aimed at reducing the destructive processes in soils and restoring their fertility.

scholarly journals The influence of deluvial processes on macro- and micromorphology of ravined forest soil

2014 ◽  
Vol 15 (3-4) ◽  
pp. 74-88
Author(s):  
V. M. Yakovenko
Keyword(s):  
Forest Soil ◽  
Forest Soils ◽  
Morphological Structure ◽  
Soil Formation ◽  
The Body ◽  
Morphological Properties ◽  
Natural Phenomenon ◽  
Ordinary Chernozem ◽  
History Of ◽  
Genetic Profiles

The paper presents the results of studying the effect of deluvial processes on the formation of macro- and micromorphological properties of forest soils on the example of ravined biogeocenoses of Dnieper Prysamarya. Ravined forest biogeocenoses have a long history of development associated with the evolution of land cover in Postpleistocene epoch. One of the factors of soil formation in ravines is deluvial process as a natural phenomenon typical for the landscapes of the present steppes. Ravined forest soils in the catena in the upper reaches of the ravine Glyboky have been studied. They are situated on the upland part of the watershed-gulch landscape in 2 km tonorth of the Andreevka village Novomoskovsk district Dnepropetrovsk region. The methods of macromorphological and micromorphological study of genetic profiles of soils have been used. It is established that ravined forest ecosystems are subjected to intensive influence of deluvial processes, whereby, morphogenesis of ravined soil has a complex peculiar character, which results to theformation of specific morphological properties. It is revealed that the source rock for the forest chernozem on the slopes and formeadow-forest soils of the thalweg are loamy humus deluvial deposits, unlike the ordinary chernozem near the ravines formed on loess rocks. Modern deluvial deposits are the materialof surface horizons of chernozems adjacent to ravine territories. Ravines act as storage ofhumus material of steppe chernozem rendered by adjacent areas. The peculiarities of the morphological structure of the profiles of the soils indicate the intensity of involvement of deluvial material in the processes forest chernozem formation. The different effects of slope processes on the structure of the investigated soil catenahave been revealed. Ordinary chernozem near forest edges have signs of erosion of the surface horizons, while the forest soils of slopes and thalweg are characterized by superpower profile. It is found that the profile of the thalweg and forest soils tends to develop, increasing its power in the two lateral directions: down – thanks to the vertical flow of substances (lessivage, intensive movement of soil invertebrates, the development of the root system); up – the deposition of lessivage material. Deluvial processes connected with lessivage ones as theytransport the new mass of finely divided material into the body of forest soil.

scholarly journals Soil Formation, Subaerial Sedimentation Processes and Ancient Cultures during MIS 2 and the Deglaciation Phase MIS 1 in the Baikal–Yenisei Siberia (Russia)

Geosciences ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 323
Author(s):  
Galina Vorobieva ◽  
Nadezhda Vashukevich ◽  
Natalia Berdnikova ◽  
Ivan Berdnikov ◽  
Dmitry Zolotarev ◽  
...  
Keyword(s):  
Soil Formation ◽  
Climatic Conditions ◽  
Initial Profile ◽  
Formation Type ◽  
Cultural Layers ◽  
Human Habitation ◽  
Soil Forming Processes ◽  
First Time ◽  
Sedimentation Processes ◽  
Humus Horizons

The time of Sartan glaciation in the Baikal–Yenisei Siberia, is comparable with that of MIS 2 and the deglaciation phase MIS 1. Loess loams, aeolian–colluvial sands and sandy loams represent subaerial sediments. There are four subhorizons (sr1, sr2, sr3 and sr4) in the Sartan horizon (sr). Sedimentary and soil-forming processes at different stratigraphic levels are considered. Differing soil formation types of cold periods are distinguished. Soils of the interstadial type with the A-C profile are represented only in the Early Sartan section of this paper. The soils of the pleniglacial type are discussed throughout the section. Their initial profile is O-C, TJ-C and W-C. Plant detritus remnants or poor thin humus horizons are preserved in places from the upper horizons. We propose for the first time for the interphasial soil formation type of cold stages to be distinguished. This is represented in the sections by the preserved BCm, BCg, Cm and Cg horizons of 15–20 cm thick. The upper horizons are absent in most sections. According to the surviving fragments, these were organogenous (O, TJ and T) and organomineral (AO and W) horizons. The sedimentation and soil formation features are considered from the perspective reconstruction of the Sartan natural and climatic conditions. Buried Sartan soils often contain cultural layers. Soil formation shows a well-defined periodicity of natural condition stabilization, which allowed ancient populations to adapt actively to various situations. Archaeologists’ interest in fossil soils is based on the ability of soils to “record” information about the natural and climatic conditions of human habitation.

scholarly journals Sedimentological characteristics of ice-wedge polygon terrain in Adventdalen (Svalbard) – environmental and climatic implications for the late Holocene

Solid Earth ◽  
2014 ◽  
Vol 5 (2) ◽  
pp. 901-914 ◽  
Author(s):  
M. Oliva ◽  
G. Vieira ◽  
P. Pina ◽  
P. Pereira ◽  
M. Neves ◽  
...  
Keyword(s):  
Organic Matter Content ◽  
Soil Formation ◽  
Matter Content ◽  
Valley Bottom ◽  
Radiocarbon Dates ◽  
Climate Conditions ◽  
Fluvial Terraces ◽  
Ice Wedge ◽  
Homogeneous Composition ◽  
Climatic Severity

Abstract. Ice wedges are widespread periglacial features in the landscape of Adventdalen, Svalbard. The networks of ice wedges have created areas with well-developed polygonal terrains in the lowest fluvial terraces in this valley. We have examined the sedimentological characteristics of the northern and southern banks of the Advent river for palaeoenvironmental purposes. The base of two sedimentary sections reported radiocarbon dates of 3.3 and 3.9 ka BP, respectively. The northern site is constituted by three very different lithostratigraphical units, which suggests that their formation should be related to different environmental and climate conditions. By contrast, the southern section shows a rather homogeneous composition, with no significant variations in grain size and organic matter content. In both cases the uppermost sediments are constituted by a thick aeolian deposit. According to our data, warmer climate conditions may have prevailed during the mid Holocene until 3.3 ka BP with widespread peat formation in the valley bottom. Subsequently, a period with alternating soil formation and aeolian sedimentation took place from 3 to 2.5 ka BP, probably due to increasing climatic severity. During the last millennium a long-term cooling trend has favoured aeolian deposition in the lowest part of Adventdalen.

scholarly journals Yield of winter rapes seeds on optimization of individual elements of growing technology

2020 ◽  
Author(s):  
M. Bakhmat ◽  
◽  
I. Sendetskyi ◽  
Keyword(s):  
Oilseed Rape ◽  
Growth Regulator ◽  
Agricultural Research ◽  
Growing Season ◽  
Research Station ◽  
Winter Oilseed Rape ◽  
Winter Rape ◽  
Podzolic Soils ◽  
Carpathian Region ◽  
Winter Rapeseed

The results of researches of influence of ways of application of growth regulator "Vermiyodis" and sowing norms on productivity of winter rape of Cheremosh and hybrid Mercedes are covered. The study was performed during 2017-2020 on sod-podzolic soils of the experimental field of the Carpathian State Agricultural Research Station of the Institute of Agriculture of the Carpathian region of NAAS Taking into account the yield, it was found that the pre-sowing treatment of winter rapeseed Cheremosh with growth regulator "Vermiyodis" at a dose of 5 l / ha on average for 2017-2020 at sowing rates of 0.6 million / ha of similar seeds, the yield was 3.60 t / ha or 0.26 t / ha more than control, for sowing rates 0.8 million / ha of similar seeds - 3.92 t / ha or 0.21 t / ha more than control, for sowing rates 1.0 million / ha of similar seeds - 3.46 t / ha or 0.23 t / ha more than control. With a single spraying of winter oilseed rape plants during the growing season with the growth regulator "Vermiyodis" at a dose of 4 l / ha at sowing rates of 0.6 million / ha of similar seeds, the yield was 3.62 t / ha or 0.28 t / ha more control, with at the sowing rate of 0.8 million / ha of similar seeds, the yield was 3.94 t / ha or 0.33 t / ha more than the control, at the sowing rate of 1.0 million / ha of similar seeds, the yield was 3.48 t / ha or 0.25 t / ha more than control. In the variants where pre-sowing treatment of rapeseed seeds of winter hybrid Mercedes with growth regulator "Vermiyodis" at a dose of 5 l / t and during the growing season was carried out a single spraying of plants with growth regulator "Vermiyodis" at a dose of 4 l / ha at seeding rates of 0.6 million / ha similar seeds yield was 3.73 t / ha or 0.39 t / ha more than control, at sowing rates of 0.8 million / ha of similar seeds - 4.07 t / ha or 0.46 t / ha more than control, at sowing rates of 1.0 million / ha of similar seeds - 3.62 t / ha or 0.39 t / ha more than control. Double spraying of rapeseed plants of the winter hybrid Mercedes during the growing season of plants with the growth regulator "Vermiyodis" at a dose of 4 l / ha at sowing rates of 0.6 million / ha of similar seeds, the yield was 3.82 t / ha or 0.48 t / ha more control, for sowing rates of 0.8 million / ha of similar seeds - 4.15 t / ha or 0.54 t / ha more than control, for sowing rates of 1.0 million / ha of similar seeds - 3.68 t / ha or 0.45 t / ha more than control. In the variants where pre-sowing treatment of Cheremosh winter rape seeds with Vermiyodis growth regulator was carried out at a dose of 5 l / t and during the growing season, plants were sprayed with Vermiyodis growth regulator at a dose of 4 l / ha at sowing rates of 0.6 million / ha of similar seeds. yield was 3.91 t / ha or 0.57 t / ha more than control, for sowing rates of 0.8 million / ha of similar seeds - 4.24 t / ha or 0.63 t / ha more than control, for norms sowing 1.0 million / ha of similar seeds - 3.77 t / ha or 0.50 t / ha more than control.

scholarly journals A short history of climate change

2020 ◽  
Vol 246 ◽  
pp. 00002
Author(s):  
Dirk Notz
Keyword(s):  
Climate Change ◽  
Energy Production ◽  
Short History ◽  
Unique Challenge ◽  
Climate Conditions ◽  
The Earth ◽  
Two Factors ◽  
History Of ◽  
Natural Climate ◽  
First Time

The flux of energy through the climate system determines the living conditions of our planet. In this contribution, I outline the main processes regulating this flux of energy, how these processes have changed throughout Earth history, and how today they are changing by human activities, in particular by activities related to energy production. The changes in the climate state of our planet, which have been ongoing ever since the formation of the Earth some 5 billion years ago, have shaped the world we live in today. Yet, today’s climate change is special in two overarching ways. First, it is the first time that a major climate change is globally affecting a civilisation that is perfectly adapted to thousands of years of stable climate conditions. Second, today’s climate change is occurring at a rate much faster than preceding natural climate changes. In combination, these two factors make today’s climate change a unique challenge to humankind, with direct consequences of future energy production as outlined in the other contributions to this volume.

scholarly journals Ground-exploring routes of the Volyn region

2017 ◽  
pp. 179-192
Author(s):  
Pavlo Kucher ◽  
Ivan Voloshyn ◽  
Andrii Kukhtiy
Keyword(s):  
Chemical Properties ◽  
Soil Science ◽  
Soil Conditions ◽  
Natural Soil ◽  
Peat Bogs ◽  
Forest Steppe ◽  
Podzolic Soils ◽  
Typical Chernozems ◽  
Soil Forming Processes ◽  
Soil Distribution

The article highlights the features of conducting soil excursion cognitive routes. We have proposed a comprehensive cognitive route for tourists of various degrees of educational level: schoolchildren and students of natural sciences. For each type of tourists, according to their wishes, information on natural features, soil cover and other excursion facilities are provided. Complex excursions are offered to attract more tourists. It is proposed to include in excursion routes: monuments and memorable places, architectural, archaeological, historical, sacral, museum and other valuable tourist objects. The excursion route in the Volyn region consists of eight soil study areas, where information is provided on the natural soil conditions, the most common types of soils, including gray forest soils, typical chernozems, sod-podzolic soils, peat soils and peat bogs. Two soils study areas are located on the forest-steppe area, where information on the main types of soils, their granulometric composition, and chemical properties are highlighted. The third-eighth field is laid within Volyn Polissya. Based on the study of the features of soil distribution, a soil-cognitive tourism route within the limits of the Forest-steppe and Volyn Polissya has been developed. The tour consists of information on the natural features of this territory, which testify to the conditions of the soil-forming processes, depending on the characteristics of natural conditions. During the soil study route, the peculiarities of distribution of the main types of soils and soil-forming rocks are highlighted. A table is prepared, in which a brief description of all types of soils found on the route and interesting tourist objects is located. Key words: soil, soil science cognitive field, tourist object, soil science route.

scholarly journals A rare case of a patient with systemic lupus erythematosus who presented with Rowell syndrome responding to treatment with hydroxychloroquine and prednisone with 1 year of relapse-free survival on belimumab

2021 ◽  
Author(s):  
Arya Loghmani ◽  
Barrett Ford ◽  
Stephen Derbes
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Diagnostic Criteria ◽  
Lupus Erythematosus ◽  
Previous History ◽  
Original Description ◽  
African American Female ◽  
Systemic Lupus ◽  
Relapse Free Survival ◽  
Free Survival ◽  
History Of

ABSTRACT Rowell syndrome, first described in 1963 by Rowell et al., is an infrequently reported and unique syndrome occurring in patients with systemic lupus erythematosus (SLE). This syndrome characteristically presents with erythema-multiforme-like lesions as well as other specific immunologic and histopathological manifestations. Since Rowell’s original description, diagnostic criteria have been proposed and modified to better describe the syndrome. We describe a 32-year-old African American female patient with a previous history of SLE who presented with dermatologic, immunologic, and histopathological manifestations that fit the modified diagnostic criteria for Rowell syndrome.

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