Original scientific paper
https://doi.org/10.21861/HGG.2013.75.02.04
The Intensity of Increment and of Subcutaneous Karst Corrosion in the Krka River Valley (Croatia)
Nenad Buzjak
orcid.org/0000-0001-8760-1906
; University of Zagreb, Faculrty of Science, Department of Geography, Division of Physical Geography
Antonia Petković
Sanja Faivre
orcid.org/0000-0001-7610-1164
; University of Zagreb, Faculrty of Science, Department of Geography, Division of Physical Geography
Abstract
In the Krka river vally the corrosion intensity was measured using the method of standard limestone tablets. Tablets were set on five locations near Knin (Krčić) and Skradin. On each location three tablets were useded. In order to perform the physico-chemical analysis the soil was sampled in which the tablets were placed. By measuring the mass, that is by calculating the intensity of increment, or corrosion large differences between the tablets have been observed. In the area of Krčić increment amounts up to 0.7797 μm / yr., while in Skradin area corrosion amounts up to 0.2436 μm / yr. The obtained differences in increment and corrosion values could be related to diverse climatic condtions and to different physico-chemical properties of the soil, especially its pH, CaCO3 and humus content.
Keywords
subcutaneous corrosion (geomorphology); standard limestone tablets; karst; Krka
Hrčak ID:
113529
URI
Publication date:
15.1.2014.
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