ODPŁYW PODZIEMNY W ZLEWNI BYSTRZYCY (GÓRY BYSTRZYCKIE)

Abstract

EVALUATION OF GROUNDWATER RUNOFF IN THE BYSTRZYCA RIVER CATCHMENT (BYSTRZYCKIE MTS.)

Abstract. The paper presents the results of groundwater runoff evaluation in the Bystrzyca River catchment located in the Bystrzyckie Mts. (Middle Sudetes). Based on river discharge data collected during three periods of time (1973–1982, 2000–2001 and 2006–2008), groundwater runoff was estimated using different hydrological methods. The estimated values of groundwater runoff range from 0.55 m3/s (8.67 l/s·km2) for the period of 1973–1982 using Natermann’s method to 0.65 m3/s (10.25 l/s·km2) for the period of 2000–2001 using Wundt’s method. The results of hydrogeological mapping of springs and analysis of the geological structure of the catchment were taken into account to produce the map of spatial distribution of specific groundwater runoff and to estimate the amount of water discharged from the Cretaceous cover and crystalline basement.