Vedecké časopisy a ročenky vydávané na pôde SAV

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Geografický časopis

Volume 53, 2001, No. 2


  Erózia z orania a jej geomorfologický efekt s osobitým zreteľom na myjavsko-bielokarpatskú kopaničiarsku oblasť
Miloš Stankoviansky 1)

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1)Geografický ústav SAV, Štefánikova 49, 814 73 Bratislava.

tillage erosion, water erosion, geomorphic effect, geomorphic pro-cesses, soil degradation, contour tillage, gradient tillage, valley bottom rising, terraced field

The aim of the article is to examine the role, significance and position of tillage erosion in the system of relief-forming and soil-degradation processes, its geomorphic effect, as well as the specific features of historical development of its spatial distribution in the Myjava-White Carpathian kopanitse area. The findings obtained by study of the older Slovak and the modern foreign literature were not only confirmed but also deepened by field research in the catchment of the Jablonka River in the Myjava Hill Land and in the catchment of the Vrzávka Brook in the White Carpathians. The results of this study have indicated that tillage erosion is the decisive process in long-term modelling of the arable hill land, while it is also one of the most important soil-degradation processes.

Geografický časopis. Volume 53, 2001, No. 2: 95-110.

  Kotlinový kras - geomorfologické pomery a aspekt exhumácie (príklad Hybského krasu)
Milan Lehotský 1)

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1)Geografický ústav SAV, Štefánikova 49, 814 73 Bratislava.

geomorphology of karst, exhumation of karst forms, Liptovská kotlina Basin, Slovakia

The article attempts to offer the picture of geomorphic situation and exhumation of the Hybe karst located in the eastern part of the Liptov Basin. The area under investigation represents the type of basin karst of pediment plains and corresponds to the fourth grade of karstification. The Hybe karst is linked to carbonate tectonic subsiding blocks, which in the consequence of pediplanating processes formed river level in the Pliocene. Glacifluvial sediments covered it in the Pleistocene. Geomorphic mapping was focused on two levels of recognition of the territory. One of them was represented by geomorphic analysis of the morphometric and morphogenetic aspects of the whole territory at scale 1:25 000, the other was detailed mapping of a part of the territory under the process of exhumation. Man impact on the environment was characterized from the viewpoint of destruction of karstic forms and potential influencing of surface and ground waters. Territory is classified into eight geomorphic types. Exhumation of surface karst forms shows an accelerated development under the effect of land use. Comparison of the obtained results with those of Droppa (1967), which he attained 35 years ago allows for the statment that the number of sinkholes increased from 24 (three of them were destroyed by man) to 32, i.e. by 11 sinkholes during the period in question. Their development continues in different conditions, particularly their depth and shape change. It is also confirmed by analysis of aerial images from two time horizons (1947 and 1992).

Geografický časopis. Volume 53, 2001, No. 2: 111-126.

  Morfoštruktúry Polonín a ich postavenie v morfoštruktúrnom pláne Východných Karpát
Ladislav Dzurovčin 1)

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1)Prešovská univerzita, Fakulta humanitných vied, Katedra geografie a geoekológie, ul. 17. Novembra 1, 080 16 Prešov.

relief of fold structures, planated surfaces, valley network, Poloniny Mts., Eastern Carpathians

The Poloniny Mts. are situated in the NE of Slovakia. They form an independent geomorphological unit in the framework of high Flysch mountain ranges. They are built by claystone and limestone rocks of the Dukla unit. Morphostructural building of the territory was analyzed by means of satellite images and confronted with the results of field mapping. Single morphostructures of the studied territory represent brachysynclines and brachyanticlines with partial application of fault tectonics. These are considerably destroyed and today represent the passive structures exhumed in the relief-forming stage of the neotectonic phase. The relief reflects the geological structure where the individual erosional forms are linked to lower geomorphologic resistance or to faults. Remains of planated surfaces, which survive in top parts of the individual massifs suggest planation of the original folded mountain range. Stages of gradual uplifting and erosional division of the territory followed the denudation period of the neotectonic stage.

Geografický časopis. Volume 53, 2001, No. 2: 127-146.

  Časovo-priestorová diferenciácia nezamestnanosti a jej tokov na Slovensku v rokoch 1997-1999
Vladimír Székely 1)

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1)Geografický ústav SAV, Štefánikova 49, 814 73 Bratislava.

unemployment, regional unemployment dynamics and disparities, inflow/outflow, regional unemployment flow rates, Slovakia

In the majority of articles the dynamics and regional variability of unemployment is analyzed by means of rates derived from the overall number of the unemployed. Using the metod suggested by Green and applied by Martin and Sunley, attention of this study is focused on the flows of the unemployed (inflows to and outflows from unemployment register), which form the total number of the unemployed. Understanding these figures may contribute to deeper insight into the functioning of the regional labour markets. Monthly data on the flows of the unemployed from the 1997-1999 period were processed for eight Slovak administrative regions. It seems that the existing regional disparities in unemployment rates directly reflect the different regional types of ”flow regimes” of the unemployed, which are defined by the mutual relation between the regional inflow to the unemployment register and regional outflow of the unemployed from the register of job-seekers.

Geografický časopis. Volume 53, 2001, No. 2: 147-170.

  Postavenie Bratislavy v stredoeurópskom metropolitnom systéme z populačného hľadiska
Boris Divinský 1)

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1)Prírodovedecká fakulta Univerzity Komenského v Bratislave, Katedra ekosozológie a fyziotaktiky, Mlynská dolina, 842 15 Bratislava.

Bratislava, population potential, demographic data, population attri-butes, population indicators, Central European metropoles, urban typology

Over last years, the Slovak capital has begun to act more emphatically within the European urban structures. It is a reflection of transformations the city has been passing through. In this paper we compare Bratislava with four other selected metropoles in Central Europe, namely from the viewpoint of various population attributes. The objective is to characterize differences as well as similarities among the single urban subjects and to depict their recent population trends. This approach helps determine the relative positives and negatives pertaining to the population potential of Bratislava. We also identify the types of the examined capitals based on their population profiles.

Geografický časopis. Volume 53, 2001, No. 2: 171-190.