Geography

Change of the Economic Districts Grid in the Volga Economic Region

Authors: Preobrazhenskiy Y. V., Romanova A. Y.

This article deals with the problem of economic zoning associated with the methodology of allocation of economic microzones, proposed by E. E. Leyzerovich. A comparison of meshes of the zoning of different years is carried out, the reasons of their differences are established. Possible changes of types of economic districts of the Volga region and the factors promoting them are considered. Comparative development of industry in the districts is analyzed.

Stability of Woody and Shrubby Elements of Steppe Ecosystems to Pyrogenic Factor (on the Example of the Reserved Area “Burtinskaya Steppe”)

Authors: Pavleychik V. M.

Based on the analysis of satellite images and field survey of the site «Burtinskaya Steppe» of the Orenburgsky reserve, it was revealed that steppe fires are one of the most significant limiting factors in the development of woody and shrubby elements of steppe ecosystems. A high restorative capacity of forest tracts is noticed, especially in the conditions of increased soil moistening.

The Transformation of the Steppe Landscapes and the Problems of Environmental Management in Conditions of Oil and Gas Production

Authors: Myachina K. V., Dubrovskaya S. A.

The article presents the results of the geo-ecological state analysis of steppe landscapes of oil and gas fields within the Volga-Ural oil and gas province. As a key parcel were selected polygons with an area of around 100 sq. km each. The digitization of key sites of oil and gas objects location and road transport network has been executed. It has been shown that the most large-scale and widespread changes are disturbances of soil and vegetation cover, which occur as a result of the introduction and operation of the area and linear infrastructure of fields.

The Role of Meteorological Conditions in the Formation of the Eolian Forms of the Curonian Spit (South-Eastern Baltic Sea)

Authors: Stont Z. I., Ulyanova M. O.

The influence of certain meteorological conditions on the conditions and speed of the eolian processes on the Curonian Spit (the southeastern part of the Baltic Sea) is considered. It is shown that the wind conditions are the most influential, especially in the autumn-winter period. The limiting factor is the amount of precipitation. Temperature conditions and relative humidity are not an obstacle for the processes under consideration.

Structure of Export of Regions of the Lower Volga Region and Prospects of Their Industry

Authors: Preobrazhenskiy Y. V.

The issues of connection of manufacturing industry of the region and the structure of its exports are considered. Features of export of some regions of the Middle and Lower Volga region during the last two years are analyzed. An assessment of the effectiveness of export activities is given. On the example of the Saratov region shows a change in the structure of exports for the period 2013-2017. The question of possibilities of import substitution in the Saratov region is raised.

Spatial and Temporal Characteristics Settlement of the Saratov Region: the Problem and the Initial Stage of Formation

Authors: Demin A. M., Ilchenko I. A.

The initial period (middle of XVI – late XVIII centuries) of the formation of the demographic and settlement on the territory of modern Saratov region. Territorial expansion of the young Russian centralized state in the Volga region started in the region the process of diffusion material-technical and social innovations, which structured the space, transforming it into the administrative system. Identified spatial and temporal trends, vectors of its development and the factors determining them. The results indicate the cyclic nature of the process of change consists of several stages.

Analysis of Some Hydrochemical Parameters of the Ecological State for the Rivers in the Soviet District of the Saratov Region

Authors: Gorshkova L. Y., Tremasova M. S., Kosyreva I. V., Rusanova T. Y., Gabidulina M. K., Marakaeva A. V.

The article presents the results of laboratory investigation of water samples collected in the summer of 2016 on the rivers of the Soviet district of the Saratov region. A brief analysis of the hydrochemical indicators is given from the point of view of their effect on the water quality of the examined rivers. Based on the results of the analysis, the relevant conclusions were drawn. At some points of sampling, exceeding the values of maximum permissible concentrations for a number of indicators was detected.

Saratov Interregional Centre of Space Monitoring as a Factor of Science, Education and Business Integration

Authors: Makarov V. Z., Chumachenko A. N.

The article represents results of scientific-innovation educational centre of geoinformational technologies (GIS-centre) activity. Also briefly reports projects realized by GIS-centre concerning of GIS methodology implementation to Povolzhie’ scientific-production and production organizations and lay down general working trends of the Saratov State University new innovation organization – the interregional centre of space monitoring. 

On the Issue of Wind Speed Approximation by Viebulla– Gudrich Law on the South-West of European Part of Russian Federation

Authors: Rykhlov A. B.

Different methods of characteristic Viebulla-Gudrich distribution estimation for wind speed leveling on the south-west of European part of Russian Federation are considered. For this purpose is recommended to use moments methods and least-squares method, that minimized the volume of calculating works. Distribution characteristics estimated by these methods allow identifying wind speed conditions, mean values and measures of variability on the south-west of European part of Russian Federation. 

Analysis of Different Distribution Laws Using for Wind Speed Leveling on the South-West of European Part of Russian Federation

Authors: Rykhlov A. B.

Statistical analysis of the most popular and often used laws of distribution, that used for probability estimation of various wind speed: Puasson, normal, longnormal and Viebulla-Gudrich laws with application of Pirson and Kolmogorov criteria was carried out. This law is recommended to use for wind conditions mathematical description for on the south-west of european part of Russian Federation. 

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