(groundwater regime, catchment area, real evapotranspiration, dynamic volume, water budget, Belo Vrelo, Serbia)
computevariations in dynamic volume during the analyticalperiod. Such volume variations in a karst groundwaterreservoir, derived in the above manner, are shown inFig. 11. It is apparent that the total dynamic volume ofBelo Vreloselected for the present case study. Key words: groundwater regime, catchment area, real evapotranspiration, dynamic volume, water budget,Belo Vrelo, Serbia.Апстракт: Довољно дуг низ осматрања режима истицања неког врела омогућује
series, the model provides the catchment size, real evapotranspiration ratesand variations in karst spring dynamic volume in theanalytical period for which gaps in the existing timeseries of average monthly discharges have been