RT Journal Article
SR Electronic
A1 Kozlovsky Dufková, Jana
A1 Jareš, Vladan
A1 Húsek, Petr
T1 Determination of wind erosion intensity on heavy clay soils
JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
YR 2014
VO 58
IS 2
SP 155
OP 160
DO 10.11118/actaun201058020155
UL https://acta.mendelu.cz/artkey/acu-201002-0017.php
AB Wind erosion, common problem of light-textured soils, was determined on heavy clay soils in the foothills of Bílé Karpaty Mountains, Czech Republic. Soil erodibility by wind was determined from the Map of potential erodibility of soil by wind and from the calculation of potential and real soil loss by wind. All the determinations show underestimation of soil erodibility by wind on heavy clay soils, because methods that are used for this are based above all on the assessment of clay particles content and the presumption the more clay particles soil contains, the less vulnerable to wind erosion is. The potential erodibility of soil by wind is 0,09 t.ha<sup>-1</sup> per year. The determined value does not exceed the tolerable soil loss limit 10 t.ha<sup>-1</sup> per year for deep soils. The real average erodibility of soil by wind has the highest value 1,47 g.m<sup>-2</sup> on November 30<sup>th</sup>, 2008. Other soil losses that do not exceed the tolerable soil loss limit 1,4 g.m<sup>-2</sup>, were determined on March 18<sup>th</sup> and 28<sup>th</sup>, 2008. Big difficulties come with the assessment of the erodibility of heavy clay soils in the areas, where soil erosion verifiably exists, but it is not assessable by objective calculating methods. Evident necessity of new knowledge concerning the determination of wind erosion intensity follows from the results.