ESTIMATION OF THE AVERAGE KARST DENUDATION RATE IN THE UPPER UNA RIVER CATCHMENT
ESTIMATION OF THE AVERAGE KARST DENUDATION RATE IN THE UPPER UNA RIVER CATCHMENT
Author(s): Simone MilanoloSubject(s): Geography, Regional studies, Physical Geopgraphy, Regional Geography, Environmental Geography
Published by: Centar za krš i speleologiju
Keywords: Denudation; Carbonate weathering; Una River; Dinaric karst;
Summary/Abstract: Average values of denudation rate of a karst landscape have been estimated indirectly from Una river water flow and hydrochemistry. At a profile located on Una River, downstream the city of Bihać, water flow and specific electrical conductivity were recorded continuously for a period of 510 days. In addition to parameters recorded by datalogger, 15 water analyses were performed and results used for calibration purpose. When considering the overall surface of the catchment area located upstream the investigated profile on the Una River (about 3200km2), the average dissolution rate can be estimated to be about 90 mm/ky. This value should be increased to an estimated 18% in order to considering only the fraction of carbonate rocksoutcrops in the catchment region.
Journal: Naš krš
- Issue Year: XXXVI/2016
- Issue No: 49
- Page Range: 5-11
- Page Count: 7
- Language: English
