Izvestiya of Saratov University.
ISSN 1819-7663 (Print)
ISSN 2542-1921 (Online)


География

Droughts and Evaluation their Criteria

In this article, on the basis of daily meteorological material over the thirty years period the drought criteria are according to Selyaninov, Shashko, and Kabanov’s works. The most productive indicators are selected; best rate the degree of the aridity over the particular period. The criteria are considered in the drought insurance and subsidy payments to agricultural producers in the lean years on the regional and state level. The analyzed coefficients do not fully show the rate of drought, i.e.

Growing Conditions of Winter Crops in Autumn and Their Status to the Time Discontinued Vegetation in Saratov Region

On daily weather data for the 30-year period (1981–2011 years) st. Saratov South-East considered agrometeorological growing conditions of winter crops. The optimum sowing date and the temperature crosses 10оC, 5оC and 0оC. Analysis of the data showed that global warming shifted the date of transition temperature to a later date, which is important for growing crops. According to favorable autumn growing season were given numerical score of the fall season

Some Results of Data Processing of Absorbed Solar Radiation and Albedo from Radiometer IKOR-M

The description of some results of three years of radiometer IKOR-M working is given. The possibility of comparisons of IKOR-M data with CERES data, working on three satellites is reviewed. The results of the calculations in the tables’ form of the absorbed solar radiation (ASR) for areas of equal size are presented. The temporary peculiarities of ASR in the Mediterranean area are considered. The mean monthly values of albedo over the Sahara, the Amazon Basin and tropical Africa are evaluated

 

The Question of Organization of the Ecological Path on the Territory of Natural Park «Kumysnaya Polyana» the City of Saratov

In article stages of the organization of the ecological track laid on the territories of natural park «Kumysnaya Polyana» of the city of Saratov in detail reveal, the route with elements of improvement and information registration is offered, the assessment of an ecological condition of the geosystems adjoining a track is made

Application of GIS, Remote Sensing and Tasseled Cap Transformation for the Study of Modern Landscape Plants Region

The paper presents the study materials vegetation using GIS and remote sensing data – satellite images. The description of this method of processing satellite images as «Tasseled cap», describes its advantages as compared to untreated so satellite images of vegetation in the study region

Saratov Region Ethnic Composition, Demic Diffusion (Census Returns 2010)

The changes in Saratov region ethnic composition during 2002–2010 are reviewed in the article. Also reviewed is demic diffusion throughout Saratov region districts and towns. The role of ethnic processes and ethnic migration in population change and its geography is elicited. The growth of people from Caucasus and Central Asia is noted

Methodological Aspects of Modeling of Ecological Functions of valley Complexes in a Cybernetic Landscape

Article is devoted theoretical and methodological aspects of the functional organization of a cultural landscape. An object of research is ecological function which acts as external display of properties of landscape components in inter-element communications of nature-social systems. As a technological platform the cybernetic landscape – interactive operated computer model is considered

Regional Features of Geoecological Risks (with Saratov Region’ Oilfields as an Example)

The article shows characteristic of regional features of oilfield’s geoecological risk (with Saratov region as an example). Geoinformation systems (GIS) and mathematical and cartographical models as a tool of their analysis are disclosed possibilities of using

Territorial Planning Schemes as a Basis for Sustainable Development Indexes Creation

In this article some existing sustainable development indexes and indicators are considered. Sustainable development rates territorial differentiation on municipal level is offered. Territorial planning schemes are proposed as a basis for municipal districts sustainable development indexes creation.

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