Wind erosion on heavy-textured soils: calculation and mapping

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis

Jana Podhrázská¹  Jana Kozlovsky Dufková² 

[1] Výzkumný ústav meliorací a ochrany půdy, v. v. i., oddělení Pozemkové úpravy a využití krajiny, Lidická 25/27, 602 00 Brno, Česká republika;Ústav aplikované a krajinné ekologie, Mendelova univerzita v Brně, Zemědělská 1, 613 00 Brno, Česká republika;

关键词: soil aggregates breakdown;    non-erodible fraction;    multiple regression analysis;    stepwise regression;    GIS;   

DOI  :  10.11118/actaun201159060199

来源: DOAJ

【 摘 要 】

The equation that expresses the influence of factors affecting soil aggregates breakdown, and thus wind erosion, originated from the results of laboratory simulations of soil aggregates breakdown due to low temperatures treatment, field measurements of air temperature and soil moisture, and statistical evaluation of gained outcomes. All the analyses, whether field or laboratory, were realized on three different soils from three different localities of the Bílé Karpaty Mountains foothills – Ostrožská Nová Ves, Blatnice pod Svatým Antonínkem, and Suchá Loz. The statistically significant factors, influencing the soil aggregates breakdown, were determined using multiple regression analysis and stepwise regression. Soil moisture content at time of freezing was the most significant factor affecting soil aggregates breakdown, content of soil particles < 0.01 mm was the least significant one. Based on the results of laboratory and field research there was created a map of heavy-textured soils that are vulnerable to wind erosion.

【 授权许可】

Unknown