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                                       Details van artikel 3 van 11 gevonden artikelen
 
 
  Comparative estimate of resistance to drought fro selected karstic aquifers in Bulgaria
 
 
Titel: Comparative estimate of resistance to drought fro selected karstic aquifers in Bulgaria
Auteur: Orehova Tatiana
Verschenen in: International journal of speleology
Paginering: Jaargang 33 (2004) nr. 1-4 pagina's 73-79
Jaar: 2004
Inhoud: Effective management of water resources requires adequate knowledge of groundwater system including the influence of climate variability and climate change. The drought of 1982-1994 in Bulgaria has led to important decrease of springflow and lowering of water levels. Therefore, groundwater demonstrated its vulnerability to drought. The purpose of this paper is to determine relative resistance of selected aquifers in Bulgaria to a prolonged decrease of recharge to groundwater. The drought resistance indicator has been defined for some karstic aquifers based on the method proposed in report of BRGM. The data from National Hydrogeological Network located in the National Institute of Meteorology and Hydrology were processed. For the aim of this study, time-series of discharge for karstic springs were used. Stations with significant impact of human activity on groundwater were eliminated. The results show that most of studied aquifers in Bulgaria have moderate and weak resistance to the drought. They are vulnerable to droughts and need good management for effective use of groundwater resources.
Uitgever: Società Speleologica Italiana (provided by DOAJ)
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

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