Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65(3), 849-857 | DOI: 10.11118/actaun201765030849

Rating of Watercourse Bank Stability Through Riparian Herbal Communities

Mariana Jakubisová1, Matúš Jakubis2
1 Arborétum Borová hora, Technical University in Zvolen, Borovianska cesta 66, 960 53 Zvolen, Slovak Republic
2 Department of Forest Harvesting, Logistics and Amelioration, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 960 53 Zvolen, Slovak Republic

Riparian vegetation performs an important and irreplaceable role in the countryside. The paper deals with the stabilizing effect of herbal communities on the banks of watercourse Breznický potok in geomorphological unit Kremnické vrchy (Central Slovakia). We analyzed the relationships between the vegetation coverage VEG % (%) and factor of stability (Fs) which was computed according to Bank Stability and Toe Erosion Model (BSTEM) on experimental banks. We also analyzed the relationships between VEG % (%) and BEHI (Bank Erosion Hazard Index). The value of aditional cohesion cr was calculated by RipRoot Model in BSTEM for present vegetation. The research was conducted on 20 experimental sections with 20 experimental profiles with the presented vegetation coverage (%) based on the detected percentage of grass and herbaceous on the riparian banks. The calculated results of Fs were evaluated in accordance with existing erosion damages of experimental banks which were determined in the terrain through visual classification. Research has shown a strong correlation between vegetation cover of bank VEG % and a stability factor Fs (correlation coefficient Iyx = 0.976) and between VEG % and BEHI (Iyx = 0.956). Data according to BEHI and BSTEM show similar results (Iyx = 0.912). The results were statistically tested.

Keywords: riparian vegetation, torrent, factor of stability, RipRoot model, BSTEM

Prepublished online: July 3, 2017; Published: May 1, 2017  Show citation

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Jakubisová, M., & Jakubis, M. (2017). Rating of Watercourse Bank Stability Through Riparian Herbal Communities. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis65(3), 849-857. doi: 10.11118/actaun201765030849
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