Results 181 to 190 of about 23,516 (232)
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Gully Erosion Zoning in the Middle Volga Region
Почвоведение, 2023The article presents a new scheme of zoning of modern gully erosion in a large region of the Russian Federation. Automated landscape zoning by means of artificial neural networks was carried out in order to determine the natural and anthropogenic conditions for the development of the gully network.
R. A. Medvedeva, O. P. Yermolaev
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The Industrial Nodes of the Middle Volga
Soviet Geography, 1967AbstractA typology of industrial nodes based on such economic factors as the use of local or long-haul raw materials, the importance of the national market for each node's finished products, the level of industrial employment, electrification of production processes, output per unit of capital investment, and labor productivity.
Yulian G. Saushkin +1 more
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Liming chernozems of the middle volga forest steppe
Russian Agricultural Sciences, 2008The dependence of spring wheat grain yield and quality on soil reaction, provision of plants with nitrogen nutrition, hydrothermic conditions of the growth period, and genotypic characteristics of the variety is shown on the basis of long-term investigations. The high effectiveness of liming is established.
E. V. Nadezhkina +3 more
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Middle Permian cephalopods of the Volga-Ural Region
Paleontological Journal, 2014A diverse assemblage of Kazanian nautiloids and ammonoids from two localities in the Kirov Region and the Mari El Republic is studied and described for the first time. The biostratigraphic potential of the cephalopod assemblage, and its ecological and taphonomic affinities, are analyzed. Twenty nautiloid species (of which 18 are new) and eight ammonoid
I. S. Barskov +2 more
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AVIFAUNISTIC TYPOLOGATION OF CITIES IN THE MIDDLE VOLGA REGION
Treshnikov readings – 2022 Modern geographical global picture and technology of geographic education, 2022The article deals with the issues of the current state of the bird fauna of cities and urban settlements in the Middle Volga region. On the basis of data on the species composition, the number of nesting species, ecological features and other parameters of the bird population, an avifaunistic typology of urban settlements is presented.
Ilgizar I. Rakhimov +2 more
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Lipids from macrophytes of the middle volga
Phytochemistry, 1995Abstract Lipid compositions from 14 macrophytic species found in the Middle Volga region belonging to different taxonomic groups but making up certain ecological groups based on the similarity of their environments, were studied. The contents of total lipids, neutral lipids, glyco- and phospholipids were determined and their respective fatty acid ...
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TAXATION OF PRIVATE FARMS IN THE MIDDLE VOLGA REGION
Vestnik of Kazan State Agrarian University, 2014Much of the food and funds for the building industry went through taxes. During the thirties, private farms were subject to a rather complicated system of taxes. They can be divided into several groups: natural (tax for meat supply, milk, potato and wool), money (insurance, self-taxation, cultural duty, agricultural tax), indirect (loans for the ...
Farid Guseynov +3 more
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Pigmy moths (Lepidoptera, Nepticulidae) from the Middle Volga Basin
Entomological Review, 2013Fifty-seven species of the family Nepticulidae were found in the Middle Volga Basin. The family includes four genera: Bohemannia Stainton, 1859 (1 species), Ectoedemia Busck, 1907 (15), Stigmella Schrank, 1802 (38), and Trifurcula Zeller, 1848 (3 species). The mines made by pigmy moth larvae are very specific in the study area.
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New and rare alien plants in the Middle Volga
Russian Journal of Biological Invasions, 2013Reports on the findings of new and rare invasive species in the flora of the Middle Volga Region (Samara and Ulyanovsk oblasts and Tatarstan) are presented. Most of the plants were found on railway embankments and in flower beds and lawns, as well as on the coast of the Kuybyshev and Saratov reservoirs.
S. A. Senator +4 more
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Ivan Lepyokhin’s Expedition to the Middle Volga
Archaeology, Ethnology & Anthropology of Eurasia, 2019the 18th-century expeditions from the Academy of Sciences aimed at colonizing new territories, especially eastern, exploring their landscapes, natural resources, and inhabitants. The article focuses on the team working in the Cheremshan basin. The description of findings is arranged in five sections, following Lepyokhin’s classification: landscape ...
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