"1"^^ . . . "Vliv n\u00EDzk\u00FDch teplot na rozpad p\u016Fdn\u00EDch \u010D\u00E1stic t\u011B\u017Ek\u00FDch p\u016Fd"@cs . "Vliv n\u00EDzk\u00FDch teplot na rozpad p\u016Fdn\u00EDch \u010D\u00E1stic t\u011B\u017Ek\u00FDch p\u016Fd" . "1211-8516" . . "296186" . . "Influence of low temperatures on aggregate disruption of heavy clay soils"@en . "RIV/62156489:43210/10:00157005!RIV11-MZE-43210___" . "Kozlovsky Dufkov\u00E1, Jana" . "V\u011Btrn\u00E1 eroze, jev typick\u00FD pro lehk\u00E9 v\u00FDsu\u0161n\u00E9 p\u016Fdy, se na n\u011Bkolika m\u00EDstech \u010Cesk\u00E9 republiky vyskytuje i na p\u016Fd\u00E1ch t\u011B\u017Ek\u00FDch. Mezi lokality, kde je tato anom\u00E1lie hlavn\u011B v jarn\u00EDm obdob\u00ED pozorov\u00E1na, pat\u0159\u00ED podh\u016F\u0159\u00ED B\u00EDl\u00FDch Karpat a okol\u00ED obce Klap\u00FD v okrese Litom\u011B\u0159ice. Pr\u00E1ce se sna\u017E\u00ED zjistit, za jak\u00FDch podm\u00EDnek doch\u00E1z\u00ED k tomuto, ve sv\u011Bt\u011B ojedin\u011Bl\u00E9mu jevu. Z v\u00FDzkum\u016F proveden\u00FDch v \u010Cesk\u00E9 republice vypl\u00FDv\u00E1, \u017Ee v\u011Btrn\u00E1 eroze na t\u011B\u017Ek\u00FDch p\u016Fd\u00E1ch se prokazateln\u011B projevuje jen na p\u016Fd\u00E1ch s hlavn\u00ED p\u016Fdn\u00ED jednotkou 06, 07 a 20. Z experiment\u016F prob\u011Bhl\u00FDch v USA je patrn\u00E9, \u017Ee rozpad p\u016Fdn\u00EDch agreg\u00E1t\u016F ovliv\u0148uj\u00ED p\u0159edev\u0161\u00EDm klimatick\u00E9 podm\u00EDnky v zimn\u00EDm obdob\u00ED, konkr\u00E9tn\u011B proces zmrznut\u00ED a n\u00E1sledn\u00E9ho rozmrznut\u00ED p\u016Fdy a proces vysu\u0161en\u00ED p\u016Fdy mrazem. Neerodovateln\u00E9 \u010D\u00E1stice p\u016Fdy (\u010D\u00E1stice > 0,84 mm) byly proto v laboratorn\u00EDch podm\u00EDnk\u00E1ch vystaveny p\u016Fsoben\u00ED n\u00EDzk\u00FDch teplot. Jednak byl sledov\u00E1n proces %22zmrznut\u00ED -- rozmrznut\u00ED%22, p\u0159i kter\u00E9m doch\u00E1z\u00ED k rozpadu p\u016Fdn\u00EDch \u010D\u00E1stic vlivem expanze ledov\u00FDch krystalk\u016F, kter\u00E9 se v p\u016Fdn\u00EDch p\u00F3rech vytvo\u0159\u00ED zmrznu" . . . . "P(QH82099)" . "Wind erosion is a typical phenomenon for light-textured soils however it can occur also on heavy clay soils in some parts of the Czech Republic. Soils, where the anomaly can appear in spring especially, are situated in the foothills of the B\u00EDl\u00E9 Karpaty Mountains and in the neighbourhood of Klap\u00FD village near Litom\u011B\u0159ice. The study tries to clarify the conditions which are the source of the problem of wind erosion on heavy clay soils. According to some experiments that were made in the U.S., the soil aggregate disruption is influenced above all by the climatic conditions in winter -- effects of freeze/thaw and freeze/dry processes. Nonerodible soil aggregates (aggregates > 0,84 mm in diameter) were exposed to the effect of low temperatures in the laboratory conditions. Effects of freeze/thaw and freeze/dry processes were observed. Freezing process of moist soil during winter causes expansion of ice crystals within aggregates, and subsequent shattering. Freeze-drying occurs when the soil is exposed to"@en . "Vliv n\u00EDzk\u00FDch teplot na rozpad p\u016Fdn\u00EDch \u010D\u00E1stic t\u011B\u017Ek\u00FDch p\u016Fd" . "V\u011Btrn\u00E1 eroze, jev typick\u00FD pro lehk\u00E9 v\u00FDsu\u0161n\u00E9 p\u016Fdy, se na n\u011Bkolika m\u00EDstech \u010Cesk\u00E9 republiky vyskytuje i na p\u016Fd\u00E1ch t\u011B\u017Ek\u00FDch. Mezi lokality, kde je tato anom\u00E1lie hlavn\u011B v jarn\u00EDm obdob\u00ED pozorov\u00E1na, pat\u0159\u00ED podh\u016F\u0159\u00ED B\u00EDl\u00FDch Karpat a okol\u00ED obce Klap\u00FD v okrese Litom\u011B\u0159ice. Pr\u00E1ce se sna\u017E\u00ED zjistit, za jak\u00FDch podm\u00EDnek doch\u00E1z\u00ED k tomuto, ve sv\u011Bt\u011B ojedin\u011Bl\u00E9mu jevu. Z v\u00FDzkum\u016F proveden\u00FDch v \u010Cesk\u00E9 republice vypl\u00FDv\u00E1, \u017Ee v\u011Btrn\u00E1 eroze na t\u011B\u017Ek\u00FDch p\u016Fd\u00E1ch se prokazateln\u011B projevuje jen na p\u016Fd\u00E1ch s hlavn\u00ED p\u016Fdn\u00ED jednotkou 06, 07 a 20. Z experiment\u016F prob\u011Bhl\u00FDch v USA je patrn\u00E9, \u017Ee rozpad p\u016Fdn\u00EDch agreg\u00E1t\u016F ovliv\u0148uj\u00ED p\u0159edev\u0161\u00EDm klimatick\u00E9 podm\u00EDnky v zimn\u00EDm obdob\u00ED, konkr\u00E9tn\u011B proces zmrznut\u00ED a n\u00E1sledn\u00E9ho rozmrznut\u00ED p\u016Fdy a proces vysu\u0161en\u00ED p\u016Fdy mrazem. Neerodovateln\u00E9 \u010D\u00E1stice p\u016Fdy (\u010D\u00E1stice > 0,84 mm) byly proto v laboratorn\u00EDch podm\u00EDnk\u00E1ch vystaveny p\u016Fsoben\u00ED n\u00EDzk\u00FDch teplot. Jednak byl sledov\u00E1n proces %22zmrznut\u00ED -- rozmrznut\u00ED%22, p\u0159i kter\u00E9m doch\u00E1z\u00ED k rozpadu p\u016Fdn\u00EDch \u010D\u00E1stic vlivem expanze ledov\u00FDch krystalk\u016F, kter\u00E9 se v p\u016Fdn\u00EDch p\u00F3rech vytvo\u0159\u00ED zmrznu"@cs . . . "Influence of low temperatures on aggregate disruption of heavy clay soils"@en . . "RIV/62156489:43210/10:00157005" . "LVIII" . "[B568FF0797D4]" . . "8"^^ . . "CZ - \u010Cesk\u00E1 republika" . "2" . . . "1"^^ . "Vliv n\u00EDzk\u00FDch teplot na rozpad p\u016Fdn\u00EDch \u010D\u00E1stic t\u011B\u017Ek\u00FDch p\u016Fd"@cs . . "43210" . . "Acta Universitatis agriculturae et silviculturae Mendelianae Brunensis : Acta of Mendel University of agriculture and forestry Brno = Acta Mendelovy zem\u011Bd\u011Blsk\u00E9 a lesnick\u00E9 univerzity v Brn\u011B" . . "freeze/dry; wind erosion; overwinter processes; heavy clay soils; freeze/thaw"@en .