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| Description
| - Modelem založeným na principu duální permeability byl simulován rychlý přenos kadmia ve strukturní půdě během přívalové srážky. Hlinitá půda s biopóry na experimentální ploše v Macově (Podunajská nížina, Slovensko) vykazovala během tracerového experimentu preferenční chování. Z toho důvodu byl aplikován numerický model, který zahrnuje preferenční složku proudění. Tento model předpokládá existenci dvou vzájemně komunikujících pórových domén: půdní matrice (pomalá doména) a domény preferenčních cest (rychlá doména). Předpokládem použitého modelu je platnost Richardsovy rovnice v obou doménách. Adsorpce kadmia na pevnou fázi je uvažována lineární, avšak s odlišným distribučním koeficientem pro každou z obou domén, které byly měřeny tzv. modifikovanou adsorpční zkouškou. Tímto přístupem byl po skončení intenzivní srážky určen průnik kadmia až pod kořenovou zónu, zatímco při použití klasického jednodoménového přístupu pouze do hloubky 2 cm. (cs)
- Advancement of cadmium in a structured soil during high-intensity rainfall is evaluated. The Chernozem soil with biopores at Macov experimental field station (Slovakia) was examined both in the laboratory and in situ. The field infiltration experiments accompanied by dye tracer test have revealed significant preferential flow patterns. Therefore, a numerical model which is capable of solving the water movement and solute transport through network of macropores had to be used. The cadmium penetration was simulated by a dual-permeability model, which assumes the existence of two communicating domains: domain of the soil matrix and the preferential flow domain. The presented dual-permeability model is based on Richards' equation for water flow and convection-dispersion equation for solute transport. The results, provided by the dual-permeability approach, predict the cadmium residua substantially below the root zone after a storm episode.
- Advancement of cadmium in a structured soil during high-intensity rainfall is evaluated. The Chernozem soil with biopores at Macov experimental field station (Slovakia) was examined both in the laboratory and in situ. The field infiltration experiments accompanied by dye tracer test have revealed significant preferential flow patterns. Therefore, a numerical model which is capable of solving the water movement and solute transport through network of macropores had to be used. The cadmium penetration was simulated by a dual-permeability model, which assumes the existence of two communicating domains: domain of the soil matrix and the preferential flow domain. The presented dual-permeability model is based on Richards' equation for water flow and convection-dispersion equation for solute transport. The results, provided by the dual-permeability approach, predict the cadmium residua substantially below the root zone after a storm episode. (en)
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| Title
| - PRŮNIK KADMIA VE STRUKTURNÍ PŮDĚ BĚHEM PŘÍVALOVÉ SRÁŽKY (cs)
- Cadmium Penetration in Structured Soil during Heavy Rainstorm
- Cadmium Penetration in Structured Soil during Heavy Rainstorm (en)
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| skos:prefLabel
| - PRŮNIK KADMIA VE STRUKTURNÍ PŮDĚ BĚHEM PŘÍVALOVÉ SRÁŽKY (cs)
- Cadmium Penetration in Structured Soil during Heavy Rainstorm
- Cadmium Penetration in Structured Soil during Heavy Rainstorm (en)
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| skos:notation
| - RIV/68407700:21110/04:01104920!RIV/2005/MSM/211105/N
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21110/04:01104920
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...i/riv/kodPristupu
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...n/vavai/riv/nosic
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Dušek, Jaromír
- Vogel, Tomáš
- Lichner, L.
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| http://linked.open...n/vavai/riv/zamer
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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