Record details

Title
    Krasové prameny Českého krasu
Statement of responsibility
    Renáta Kadlecová, Karel Žák
Other titles
    Karst Springs of the Bohemian Karst
Author
    Kadlecová, Renáta
    Žák, Karel, 1957-
Language
    česky
Source title - serial
    Český kras
Vol./nr.
    Roč. 24
Pages
    s. 17-34, 1 l. obr. příl.
Year
    1998
Notes
    1 obr., 1 tab., 39 bibl. + 1 mapa
    Anglické resumé
    Zkr. název ser.: Čes. Kras
Subject group
    Barrandien
    hydrochemie
    hydrogeologie regionální
    hydrologie krasová
    kras
    pramen
    pramen krasový
    vydatnost
Geographical name
    Český kras
    ČR-Čechy
Keyword
    Českého
    Krasové
    Krasu
    Prameny
Abstract (in english)
   The Bohemian Karst, a small karst region located SW of Prague, is known for numerous karst springs. Calcareous tufa precipitates from most of karst springs. Here we give location and principal characteristics of more than 100 hydrogeologically important objects in this region. The largest spring discharges at Svatý Jan pod Skalou (mean discharge about 20 l.s.-1, mean temperature 11.4 °C) and there are several other large springs with discharge above 5 l.s.-1 in the region. The position of individual springs is given by a combination of structural, tectonic and morphological features and by complex multi-stage development of the karst itself. Most springs are characterised by relatively stable discharge and temperature. The Bohemian Karst is not a classical karst area. Caves with common stream morphology and active subsurface streams are not typical here.
   Caves are rather reresented by extensivelly corroded fissures, narrow passages and channels, which are, at least partly, believed to be formed as corrosional cavities below the water table. Karst springs characterised by water with short underground residence time and with rapid response to precipitation events are almost missing. Instead, most springs are dominated by water with relatively long residence time and represent discharge from local aquifers of combined karst/fissure type, which developed in individual structurally and tectonically controled limestone segments. The water table in these karst aquifers lies usually between 20 and 100 m below the present surface. Most aquifers are contaminated by nitrates as a result of agricultural activity
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    24. 11. 2008
Import date
    8. 8. 2012