Sídelní cluster Jarošov II představuje jednu z nejdůležitějších sídelních aglomerací na Uherskohradišťsku. V roce 2005 proběhly výzkumy dvou částí tohoto clusteru – Podvršťa a Kopaniny. Ve výkopu v trati Kopaniny byly objeveny ojedinělé kosti spolu s hrotitou čepelí, z čehož je zřejmé, že nálezový horizont pokračuje výše do svahu. Výzkum v trati Podvršťa potvrdil hypotézu o přítomnosti dvou kulturních horizontů, které je možno rozlišit, pokud se v průběhu terénních prací zaměříme na mikrostratigrafii. Kalibrovaná radiokarbonová data naznačují rozdíl ~1200 let v sedimentaci obou vrstev a časově korespondují s grónskými interstadiály v období před 33 000 a 31 000 lety. Zatímco materiál z jednotlivých vrstev vykazuje pouze drobné odlišnosti, výrazné rozdíly jsou patrné při srovnání kolekcí z Podvršti s ostatními lokalitami v oblasti (např. Boršice-Chrástka). Litologický výzkum, doplněný měřením magnetické susceptibility a celkového obsahu karbonátů, přinesl doklady plošné geliflukce – významného fenoménu, který způsoboval resedimentaci kulturních vrstev během pozdního kyslíkového izotopového stupně 3 (v době před 26 000 až 33 000 lety) v sídelním clusteru Jarošov II. and The Jarošov II settlement cluster represents one of the most important settlement agglomerations in the Uherské Hradiště area. Two units of this cluster – Kopaniny and Podvršťa – were reopened for excavation in 2005. A trench in a field at Jarošov-Kopaniny revealed a small collection of osteological material, supplemented by a pointed blade, indicating that the area with finds continues upslope. Excavations in a field at Podvršťa verified the hypothesis that it is possible to separate two layers when focusing on microstratigraphy during fieldwork. Calibrated radiocarbon dates indicate a difference of ~1200 years between sedimentation of the layers, and correspond well to the Greenland interstadials around 33 and 31 ka BP. The material from these layers shows only minor differences in the lithic industry and osteological material. On the other hand, the Jarošov-Podvršťa material shows significant differences to that from other sites in the area (e.g. Boršice-Chrástka). Lithological research combined with magnetic susceptibility and total carbonate content measurements yielded evidence for sheet gelifluction slope transport as an important phenomenon in the re-sedimentation of the late MIS 3 (26–33 ka BP) cultural layers at the Jarošov II settlement cluster.
An understanding of preferential flow in the vadose zone is crucial for the prediction of the fate of pollutants.
Infiltration basins, developed to mitigate the adverse effects of impervious surfaces in urban areas, are established above
strongly heterogeneous and highly permeable deposits and thus are prone to preferential flow and enhanced pollutant
transport. This study numerically investigates the establishment of preferential flow in an infiltration basin in the Lyon
suburbs (France) established over a highly heterogeneous glaciofluvial deposit covering much of the Lyon region. An investigation
of the soil transect (13.5 m long and 2.5 m deep) provided full characterization of lithology and hydraulic
properties of present lithofacies. Numerical modeling with the HYDRUS-2D model of water flow in the transect was
used to identify the effects of individual lithofacies that constitute the deposit. Multiple scenarios that considered different
levels of heterogeneity were evaluated. Preferential flow was studied for several values of infiltration rates applied
after a long dry period. The numerical study shows that the high contrast in hydraulic properties of different lithofacies
triggers the establishment of preferential flow (capillary barriers and funneled flow). Preferential flow develops mainly
for low water fluxes imposed at the surface. The role of individual lithofacies in triggering preferential flow depends on
their shapes (layering versus inclusions) and their sizes. While lenses and inclusions produce preferential flow pathways,
the presence of the surface layer has no effect on the development of preferential flow and it only affects the effective
hydraulic conductivity of the heterogeneous transect.