scholarly journals Numerical methods to recognize the soil types in the forest steppe

2015 ◽  
pp. 73-90
Author(s):  
G. F. Koposov ◽  
A. A. Valeeva
Keyword(s):  
Classification System ◽  
Humus Horizon ◽  
Clay Fraction ◽  
Soil Classification ◽  
Forest Steppe ◽  
System A ◽  
Russian Soil ◽  
The One ◽  
Multidimensional Statistics ◽  
Dark Gray Soils

The authors generalized and summarized original and literature data with the view of studying the gray and dark-gray soils in the Volga-Kama forest steppe. The methods of multidimensional statistics permitted to determine the position of these soils in the available soil classification system. A great number of soils described by different researchers within the framework of Russian soil classification system (1977) were formalized in conformity with that published in 2004. In the latest classification system of soils in Russia the reliable differences in the humus horizon of gray and dark-gray soils are shown in the content of humus, exchangeable bases, clay fraction, acidity and thickness as well as in the thickness of the leached layer (up to the C horizon) and the humus storage within the one meter of soil (t/ha). The methods of numerical classification allowed determining discriminated functions and classify more exactly the studied soils in the Volga-Kama forest steppe. Based upon statistic processing of the obtained data the limits for properties of the humus horizon are suggested to distinguish the gray and dark-gray soils. The visual imagination widely adopted now to recognize the types of gray and dark-gray soils should be added by limits of their varying properties. The obtained results presented in this paper may be useful to improve the idea on properties of gray forest soils. The suggested criteria to recognize the studied soils may be applicable for studying and systematizing these soils as well as for purposes of land use, elaboration of regional database and in projects of ecological territory optimization.

scholarly journals PROPOSALS TO THE RUSSIAN SOIL CLASSIFICATION SYSTEM ON THE BASIS OF THE ANALYSIS OF THE SOIL MAP OF THE RUSSIAN FEDERATION (1 : 2.5 M SCALE, 1988)

2018 ◽  
pp. 58-70 ◽  
Author(s):  
M. I. Gerasimova ◽  
T. V. Ananko ◽  
D. E. Konyushkov
Keyword(s):  
Russian Federation ◽  
Classification System ◽  
Humus Horizon ◽  
Soil Classification ◽  
Diagnostic Features ◽  
Soil Map ◽  
State Register ◽  
Russian Soil ◽  
The Russian Federation ◽  
Diagnostic Horizons

The analysis of the Soil Map of the Russian Federation (1 : 2.5 M scale, 1988) with identification of soils shown in each polygon in categories of the classification system of Russian soils (2004, 2008) is the first stage of work on creating the new digital soil map of Russia. It demonstrated the need to introduce a number of amendments to the classification system. They concern the definitions and names of diagnostic horizons and diagnostic features of soils. Thus, it is suggested that the mucky–dark humus horizon AH should be renamed as the mucky–humus horizon (as its properties do not fit the definition of the dark humus horizon in the system). Several new diagnostic features are introduced; for permafrost-affected soils, supra-permafrost accumulation of organic matter is designated by symbol cro. It is also suggested that the lists of soils at the subtype level, which reflects the development of certain diagnostic features, should be more flexible without their "rigid" linking to the given types. The aim of these changes is to reflect the accumulated information on the diversity of soils in Russia as displayed on the Soil Map of the Russian Federation (1988) and in the State Register of Soil Resources more adequately in the new classification system of Russian soils.

Ecological niches of major soil types in Russia: Geographical aspects of the new Russian soil classification system

2009 ◽  
Vol 42 (9) ◽  
pp. 967-975 ◽  
Author(s):  
V. D. Tonkonogov ◽  
I. I. Lebedeva ◽  
M. I. Gerasimova ◽  
S. F. Khokhlov
Keyword(s):  
Classification System ◽  
Soil Classification ◽  
Soil Types ◽  
Ecological Niches ◽  
Russian Soil

“Black soils” in the Russian Soil Classification system, the US Soil Taxonomy and the WRB: Quantitative correlation and implications for pedodiversity assessment

CATENA ◽  
2021 ◽  
Vol 196 ◽  
pp. 104824 ◽  
Author(s):  
Alexey Sorokin ◽  
Phillip Owens ◽  
Vince Láng ◽  
Zhuo-Dong Jiang ◽  
Erika Michéli ◽  
...  
Keyword(s):  
Classification System ◽  
Soil Classification ◽  
Soil Taxonomy ◽  
Quantitative Correlation ◽  
The Us ◽  
Russian Soil

Problems of the Cryogenic Soils’ Diagnostics in the Recent Russian Soil Classification System

2019 ◽  
Vol 52 (10) ◽  
pp. 1170-1174 ◽  
Author(s):  
A. V. Lupachev ◽  
S. V. Gubin ◽  
M. I. Gerasimova
Keyword(s):  
Classification System ◽  
Soil Classification ◽  
Cryogenic Soils ◽  
Russian Soil

An attempt of integrating the systematic of urban soils into the new Russian soil classification system

2013 ◽  
Vol 64 (1) ◽  
pp. 24-28 ◽  
Author(s):  
Tatiana Prokof'eva ◽  
Maria Gerasimova ◽  
Irina Lebedeva ◽  
Irina Martynenko
Keyword(s):  
Classification System ◽  
Urban Soils ◽  
Soil Classification ◽  
Parent Material ◽  
Simultaneous Formation ◽  
Natural Properties ◽  
Russian Soil ◽  
Central Image ◽  
Diagnostic Horizons ◽  
Diagnostic Horizon

Abstract An attempt to incorporate the popular systematic of urban soils proposed by Marina Stroganova with colleagues into the new Russian soil classification system is presented. It was facilitated by the coincidence of approaches in both systems: priority of diagnostic horizons and their combinations as criteria to identify soil types being the main units in all Russian classifications. The central image of urban soils . urbanozem . in Stroganova.s system found its due place in the order of stratozems (urbostratozem type) owing to its diagnostic horizon . urbic, which combines artificial and natural properties, and to its simultaneous formation with the parent material.

scholarly journals Dark-humus soils on the updated soil map of Russian Federation scale 1 : 2.5 M

2021 ◽  
pp. 31-54
Author(s):  
T. V. Ananko ◽  
M. I. Gerasimova
Keyword(s):  
Russian Federation ◽  
Unsaturated Soils ◽  
Humus Horizon ◽  
Calcareous Soils ◽  
Soil Classification ◽  
Climatic Conditions ◽  
Parent Material ◽  
Forest Steppe ◽  
Soil Map ◽  
Diagnostic Horizons

The dark-humus soil type was included in the updated legend of the Soil Map of the Russian Federation at scale 1 : 2.5 M, converted to the system of Soil Classification of Russia. The soil profile starts with the dark-humus horizon gradually merging to the parent rock; any mid-profile diagnostic horizons are absent. Large areas of dark-humus soils are found in the forest-steppe, steppe and taiga zones of the European Russia, Western and Central Siberia, in the Trans-Baikal region, the Altai-Sayany Mountains, and the Caucasus. The type of dark-humus soils comprises both mesomorphic soils (of normal moisture conditions) and soils with additional surface or ground-water moisture. The main prerequisites for the formation of dark-humus soils are, on the one hand, the climatic conditions favorable for the dark-humus horizon formation, and, on the other hand, parent material - mostly derivates of hard rocks, restricting the development of mid-profile diagnostic horizons. In the updated map, the following initial legend units are partially or completely converted to dark-humus soils: several units of chernozems, dark-gray forest and gray forest non-podzolized soils, soddy-taiga base-saturated and slightly unsaturated soils, several mountain soils, a significant part of soddy-calcareous soils, as well as some mountainous forest-meadow soils. The diversity of dark-humus soils subtypes is determined by secondary carbonate features, weak signs of clay accumulation and podzolization, alteration of the mineral mass, gley and cryogenic phenomena.

scholarly journals Do Andosols occur in the Czech Republic?

2010 ◽  
Vol 5 (No. 4) ◽  
pp. 161-171 ◽  
Author(s):  
P. Novák ◽  
T. Khel ◽  
J. Vopravil ◽  
J. Lagová
Keyword(s):  
Czech Republic ◽  
Classification System ◽  
Humus Horizon ◽  
Volcanic Glass ◽  
Soil Classification ◽  
Classification Systems ◽  
Necessary Condition ◽  
The Czech Republic ◽  
Diagnostic Characteristics ◽  
The Hill

The aim of this contribution was either to confirm or refuse the supposition that there are soils on the volcanic effusive rocks in the Bruntál district which can be assigned to the referential group of Andosols. The conditions for the genesis of Andosols are described and the diagnostic criteria of the andic process are defined both according to the principles of the WBR/FAO 2006 classification and according to the Slovak MKSPS 2000 classification system. In the Czech classification system, the diagnostics of Andosols has not yet been described or defined because their occurrence on the territory of the Czech Republic has not been confirmed till now. On the Velký Roudný volcanic dome (780 m), samples from two profiles were taken and described: one from below the summit as a sample of forest soil, and the other from the terraced, grass-covered foot of the hill, formerly used as a ploughed land. The samples from the two profiles were processed, and analyses were carried out according to both the classification systems mentioned above. The results of the analyses were subsequently evaluated. It was discovered that both evaluated profiles conformed to most of the diagnostic characteristics of andic development according to both WRB 2006 and the Slovak 2000 classification systems. Both evaluated profiles could be then classified – according to WRB 2006 – as Vitric Andosol (Dystric) and Vitric – Umbric Andosol (Dystric, Colluvic), respectivelly; according to Slovak Classification System as Andic Cambisols. The occurrence of soils with andic development in the Czech Republic was thus confirmed. The conclusion drawn by some authors (eg. in US Taxonomy) that a higher content of volcanic glass and a substrate of andesite type are not an indispensable condition for the creation of soils classified as Andosols was also confirmed. Likewise, according to the WRB criteria, a melanic humus horizon is not a necessary condition. Because of the difficulties in distinguishing the types, the Czech classification system recommends that a humic andic horizon should be evaluated as molic. We assume that in some cases it could be better classified as umbric. A preliminary proposal has been put forward to insert the Andozem soil types in Taxonomic Soil Classification System of the Czech Republic: Haplic Andosol, Vitric Andosol, Lithic Andosol, Umbric Andosol, but the properties and criteria of those soils will have to be defined precisely. One problem which will also have to be resolved is how to allocate the profiles displaying andic properties either to the proposed subtype of Cambic Andosol or to the subtype of Andic Cambisol (outside the referential class of Andsols). This issue is, indeed, not dealt with satisfactorily either by the Slovak system or the worldwide WRB 2006 classification, either.

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