Geography

Population dynamics of Volgograd, Samara and Saratov regions: Contribution of migration

Volgograd, Samara and Saratov regions are neighboring regions. Demographic development in the regions has general trends. Migration is becoming the main component influencing the differences in population dynamics in the regions. The Samara region continues to attract both interregional Russian and international migrants.

The prevalence of non-Hodgkin’s lymphomas in Saratov (medico-geographical analysis)

Malignant neoplasms of the lymphatic system, which are characterized by damage to groups of lymph nodes and/or damage to internal organs are called lymphomas. The analysis of statistical data shows that there is incomplete information about the incidence in specific regions. The study of the prevalence of lymphomas, the need to monitor the incidence, and the identification and analysis of possible links between pathology and urban environmental features are an urgent problem. The paper analyzes the dynamics of the incidence of non-Hodgkin’s lymphoma in Saratov from 2009 to 2019.

Some population mortality indicators of the large region of Volga federal district

Reducing the mortality rate of the population: general, in childhood and people of working age is a priority goal of the federal and regional authorities. However, an increase in the proportion of the population in older ages in the total population, and an increase in life expectancy leads to an aging of the population as a whole, and, consequently, to an increase (all other things being equal) of the relative mortality rates of the entire population.

Assessment of the geoecological state of surface watercourses in the Slavsky district, Kaliningrad region (summer hydrological season)

The paper provides an assessment of the geoecological state of surface watercourses in the Slavsky district, Kaliningrad region in the summer hydrological season. For this purpose, the choice of watercourses for research was carried out, which, in aggregate, could characterize the river network of the Slavsky district as a whole, they were: r. Zlaya, r. Shluzovaya, r. Nemoninka and r. Osa. Water samples were taken for hydrochemical analysis and the hydrometric characteristics of the rivers were measured.

The urban settlement pattern on the banks of some rivers in Europe: Search for inter-city interval

The study continues to identify the typical interval between cities on major rivers in the search for patterns in the organization of geospatial elements, including point (cities) and linear (rivers) objects. It is stated that the latter are divided into approximately equal segments measured by the river (inter-city intervals). This article examines the features of urban population distribution along the banks of six major rivers in Europe. Typical inter-city intervals were identified for them.

On the manifestations of climate change in the wind regime in the territory of Syunik marz (Armenia)

The manifestations of climate change in the regularities of the wind regime in the territory of Syunik marz of Armenia are considered. Monthly wind data for the period 1966–2018 of six weather stations were used as a source material. It was found that at all meteostations, except for Kapan, currently operating in the territory of Syunik marz there is a tendency towards a decrease in wind speed for 1966–2018. The number of cases of wind directions and calmness also fluctuates, due to climate changes, which are presented in the work on the example of the Goris weather station.

Facies structure of the chalk natural landmark of the nature monument “Chalk slopes with calcephil plants near town Volsk”

The article presents the results of landscape-ecological studies of the site of the natural monument “Chalk slopes with calcephil plants near town Volsk” in the Saratov region. For the first time, the facies rows of the chalk buttes of the Volsky Pre-Volga region are identified, their characteristics are presented, and the conservational risks to calciphytic diversity are indicated.

Assessment of technogenic load of Nizhny Tagil city pond and environmental risk management based on multifractal dynamics

Algoremediation which is a method of natural and waste water treatment due to the metabolic potential of chlorococcal microalgae is based on the principle of system stability. The method of pollution degree estimation of anthropogenic loaded water object based on the application of fractal calculation is shown. Factor analysis has been used to determine the parameters of the environmental system of Nizhny Tagil city pond which are the basis for a new approach to evaluating the efficiency of environmental protection measures through geoecological risk management.

The Content of Mobile Forms of Heavy Metals in Soils in the Territory of the Recreation Zone «Victory Park» (Saratov)

The soil cover in the territory of the large recreational zone «Victory Park», which performs environmental, memorial and educational functions, was studied. According to the analysis results of mobile forms of heavy metals concentrations the assessment of the current sanitaryhygienic and ecologic-geochemical condition of soils was carried out. An excess of the maximum permissible concentrations in most of the samples for nickel, lead, and copper was found.

Evaluating the Degree of Favourable Overwintering of Winter Crops on the Territory of the Saratov Region

The article presents the agroclimatic characteristic of the winter season on daily meteorological weather data for 1941–2019 at the Saratov South-East (SE) station. The agroclimatic characteristic of the winter season at the stations of the Saratov region (Khvalynsk, Balashov, Ershov, Alexandrov Gai) is presented for the last 10 years. The point rating of the degree of favorable overwintering of winter crops was carried out at the Saratov SE station for 1962–2019.

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