Vliv mlade strzove eroze na zivotni prostredi ve vybranych oblastech Cech

• Autorzy: Probyl V.

Warianty tytułu

EN

The influence of the young landslide erosion on the natural environment in some regions of the Bohemia

• Języki publikacji: CS

Abstrakty

EN

Results of researches of the young landslide erosion which were obtained from comprehensive investigations carried out one some selected regions of the Bohemia. The entire are presented was divided into two stages to be completed within five years. The development of the selected erosion forms is assumed to continue also in subsequent years. The results discussed are gathered from the first stage of the study, which was aimed at determing the actual landslide erosion rate in ten selected areas of the Bohemia, viz. those of a flat, hilly and mountainous relief. In all the areas of interest a detailed geomorphological mapping has been, or is currently being, conducted, during which also young erosion forms are marked on the maps with maps with differentiation of their types. For the accomplishment of first investigation stage a combined modification of the morphometric method was employed on the basis of the detailed geomorphological and topographic maps. Next, three of the selected ten regions were elaborated. The following indicators were used: a) landslide erosion rate, b) density of the old valley system, c) relative erosive activity, expressed in terms of the length of the young erosion forms ratio to the old valley system, d) the number of the average-length forms per 1 km². Subsequently, localization of the landslides in the terrain was determined along with their orientation with respect to the cardinal points. On the grounds of the partial results so far obtained the following can be said: 1) of the indices examined the landslide erosion rate, the number of the forms per one square kilometer, and the ratio of the landslide length to the lenght of the old valley system, remain in agreement; 2) no relation was found between the erosion rate and the average landslide length; 3) the development of young erosion forms is directly related to the length of the old valley system; 4) the most landslides (30,3%) are on the gontly indined denudation slopes; 5) the majority of landslides are situated to the north-east and east, the least, to south and south-west. The results are chiefly gathered in a table provided. Some general conclusions, however, cannot be drawn from the results obtained, as merely a small part of the study was made.

• Wydawca: -
• Czasopismo: Prace i Studia Geograficzne
• Rocznik: 1983
• Tom: 04
• Opis fizyczny: p.37-45,ref.

Twórcy

autor

Probyl V.

Bibliografia

• Atlas českoslovenké Socialistické Republiky, ČSAV a ÚSGK Praha, 1966.
• Bučko Š., Mazúrová V. (1958), Výmol’ova erózia na Slovensku, Sborník Vodná erózia na Slovensku, SAV Bratislava.
• Czudek T. edit. (1972), Geomorfologické členění ČSR, Studia geographica, sv. 23, GÚ ČSAV Brno, s. 137.
• Zachar D. (1970), Erózia pôdy, Vydavatelstvo SAV, Bratislava, s. 527.