THEORY AND METHODOLOGY
Possible application of formal approaches for the evaluation of certainty of particular regions which are the result of flexible delimitation procedures is demonstrated. The scheme of the geoecological regions ofAfricacompiled through the complex multi-criteria analysis with both definite and flexible indicators was the object of study and certainty control. Regular grid cells of 0,5° 0,5° are the operational territorial units of study which are described by various parameters (in nominal or interval scales) from available thematic databases. A region is a territorial combination of adjacent grid cells characterized by similar values of region delimitation criteria. Three typical situations of the mathematical intersection of indicators for cell combinations (regions) are discussed which correspond to high, medium and low nonuniqueness of region delimitation. The results are interpreted in terms of the individual features of the regions; limitations of mathematical methods applied for their analysis are discussed. The most significant variables (criteria of the delimitation of regions) are determined. Possible application of the above-discussed methods for localization of the typical cores and peripheral parts of regions is described.
GEOGRAPHY AND ECOLOGY
Soil cover of the Baikonur Cosmodrome area is studied. Basing on the field and chemicalanalytical investigations, as well as the Earth remote sensing data the medium-scale (1:300 000) soil map of the cosmodrome area was updated. Soil resistance to chemical and physical impacts related to the rocket-and-space activities was evaluated which allowed zoning the Baikonur Cosmodrome area regarding the potential resistance of soils. The integral assessment of potential resistance of soils to chemical pollution depends both on the realization of buffer mechanisms of their physical-chemical properties and the catalytic reactivity of the chemical elements. Soils with low potential resistance to chemical impact host about 65% of the cosmodrome operation facilities. These data should be taken into account while planning measures for the environmental risks mitigation and choosing soil decontamination techniques in emergencies. Factors influencing the resistance of soils to physical impacts were also analyzed. The cosmodrome facilities are located within areas with medium (85%) and low (15%) soil resistance to physical impacts. If the environmental standards for particular types of activities are met at the cosmodrome facilities the anthropogenic transformation of natural landscapes in their vicinity could be scaled down.
The contribution of different types of residential houses to the total greenhouse gases emission in the town ofAstanawas calculated basing on the author’s calculation procedure. The results show that specific emissions of the greenhouse gases due to the production of electricity and heat for the public sector significantly exceed the world averages because of a long heating period and the use of coal as a principal fuel. We suggested a set of measures for the reduction of the GHG emissions from the municipal sector. Part of them deals with the reduction of the greenhouse gases emissions by producers of heat and power (CHP plants) while other are aimed at the end users of these services within the municipal sector. It is shown that the reduction of greenhouse gases emissions down to the world averages is only possible by replacing coal with natural gas as a principal fuel for the urban GHP plants and realizing the most cost-effective measures for saving heat and electricity at the municipal sector.
METHODS OF GEOGRAPHICAL STUDIES
The 1990 and 1995 storm situations in theSeaofOkhotskwere modeled using the ADCIRC model adapted for theSeaofOkhotskby producing the irregular computation grid of500 mresolution basing on the absolute heights of bottom topography. Wind and air pressure data of the NCEP/GFSR reanalysis were used as constraining forces. Computed values of the sea level were correlated with the data of instrumental observations at several sites of theSakhalinIsland. The results of numerical modeling made it possible to evaluate the role of air pressure in the formation of storm surges and compute a number of statistical parameters (correlation, standard deviation, systematic error, etc.). The spatial pattern of the maximum water levels for the whole computation period showed the highest water rise in theSakhalinBayand theTerpeniyaBayfor both cases.
The article discusses the relationships between the actual local vegetation of the White Seaislands and their modern surface pollen spectra. Surface soils and peat were sampled on the islands and the mainland coast of the PoriyaGubaBayunder different geographical conditions and plant communities. The obtained spectra were analyzed using the cluster analysis and the principal component analysis. The results show that the modern pollen spectra adequately reflect both the zonal vegetation, i.e. the northern boreal forests, and its local features. The typical treeless communities located on the open-sea islands and dominated by Empetrum are the most clearly identified by the surface pollen spectra. Other plant communities have less specific pollen spectra. The surface spectra from forests, open woodlands and dwarf shrub communities in the inner part of the bay are rather similar in composition. This suggests their common formation as different stages of a single succession. Surface spectra of bogs and waterlogged Empetrum communities are also quite similar. It is shown that the openness to winds and humidification are important factors for the formation of modern pollen spectra of the islands. The results prove that within the boreal forest zone the treeless islands with dwarf shrub vegetation have specific surface pollen spectra, which agrees with the previous studies in other sub-Arctic regions. The patterns revealed in the course of the study could be used for interpreting the results of the pollen analysis of fossil deposits of theWhite Sea islands.
REGIONAL STUDIES
Sea level oscillations in the GolubayaBay(the town of Gelendzhik) were studied using the data of the acoustic wave recorder that registers level fluctuations with 5 Hz frequency. Analysis of the continuous series of observations made it possible to identify principal daily and semidaily tidal components in the spectra of the Black Sealevel oscillations. A peak with about 4,8 hour periodicity probably results from the resonance of the sea level oscillations themselves and the shallow-water components of a tide. The harmonic analysis was used to evaluate the amplitudes and phases of the main daily and semi-daily harmonic constants of tides in the GolubayaBay. The spectral analysis identify the following frequencies of the sea level oscillations themselves in the range of 2 min to 1 hour: 17,6 min, 15,5 min, 13 min and 6 min. Peak values at the frequencies below 5 cycles per hour depend on the frequency-selective characteristics of the Golubaya Bay shelf and the sea level oscillations in the nearby Gelendzhik Bay. Spectral peaks at f>7 cycles per hour are formed by the sea level oscillations in theGolubayaBay itself.
The banking system ofGermanyis among the oldest ones in the world. Its well-developed territorial structure which includes different types of banking institutions is characterized with a pronounced asymmetry. The institutional approach to the investigation of the national banking systems in the world is not adequate enough to describe all features of a banking system, particularly its interrelations with the spatial distribution of productive forces and the economic potential of the population within the area of operation of a banking institution. The banking system ofGermanyhas the so-called three-sector structure and each sector has its own clients, sets of banking services and assets. Their spatial distribution is therefore governed by different factors which should be analyzed in order to forecast and plan the strategic development of the banking system inGermanyand find the economic niches for foreign banks eager to expand their activities inGermany. Spatial distribution of credit and financial institutions ofGermanyin terms of their legal forms, size and numbers was analyzed. Parameters of the interrelation of the banking institutions and the social-economic situation in their standorts were calculated and interpreted.
The analysis of land use dynamics in a mountainous Nan province for the period of 1995– 2012 made it possible to identify the principal factors leading to deforestation inNorthern Thailand. The land use was monitored through interpreting space imagery from the Landsat 7 ETM and the Thai Theos/Thaichote satellite and using land cover data granted by the Land Development Department of theKingdomofThailand. Compared to the FAO conclusion about the suspension of deforestation it is shown that profound changes in land use took place in several mountainous regions of the country, namely sharp reduction of forest areas and the increase of perennial plantations, fields, orchards and pastures, as well as the urban areas. The main types of land use changes in mountainous and lowland regions of theNanprovince were identified. The deforestation was particularly intensive during 2009–2012. As a result, the destructive natural-anthropogenic processes, i.e. erosion and landslides, became more active within mountainous landscapes provoking the increase of sediment discharge and the risk of floods. Key factors of deforestation in the mountainous regions ofThailandwhich is a vibrant economy nowadays are the transformation of traditional environmentally sustainable systems of subsistence economy and their substitution for the intensive systems typical for the market economy.