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Highlights

  • Seasonal changes in 3 months intervals
  • Five log lasting research on dynamic
  • Impact of snow cover and snow melting on dissolution rate
  • Impact of evapotranspiration and growing season on dissolution rate

Abstract

Chemical denudation in karst is the basic process of karst relief formation. However, it is influenced by many factors of varying intensity that depend on the climatic conditions and characteristics of each given location. Based on measurable results of weight loss of limestone tablets, we monitored the intensity of chemical denudation in two areas of the Slovak Karst, Silica Plateau and Jasov Plateau that are situated in the most developed karst plateau region of Slovakia. Both experimental sites are similar in terms of geographical conditions, thus comparable between them. In each locality, we placed three sets of standardized tablets at a depth of 50 cm, 20 cm, and on the soil surface. The research began in December 2016 and has continued up to the end of 2021, with drying and weighing of the samples taking place each three months. The lowest weight loss was recorded on samples placed on the surface (in both sites) and the highest at the depth of 20 cm. This is due to biological activity in the soil during the growing season (2.65 - 2.82 mg/cm2/year). The highest weight losses over time are observed at the turn of winter and spring, where the effect of snowfall and snow melting water plays an important role. The average dissolution rate in the spring season is between 3.78 and 4.12 mg/cm2/year, whereas in winter is from 3.24 to 4.06 mg/cm2/year.

DOI

https://doi.org/10.5038/1827-806X.52.2.2468

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