Application of the single-porosity, dual-porosity and dual-permeability models for description of herbicide transport in the soil

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F06%3A14698" target="_blank" >RIV/60460709:41210/06:14698 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Application of the single-porosity, dual-porosity and dual-permeability models for description of herbicide transport in the soil

Original language description

Non-equilibrium water flow and contaminant transport in soil porous media are frequently observed phenomena. Numerical models that assume bi-modal soil porous systems have been developed to describe non-equilibrium flow and solute transport. Single-porosity, dual-porosity and dual-permeability models in HYDRUS-1D (Šimůnek et al., 2003,2005) were applied in this study to estimate soil hydraulic parameters from laboratory multi-step outflow experiment via numerical inversion and to simulate chlorotolurontransport in the soil profile that was experimentally studied in the field. Two examples are shown here. First the applicability of single-porosity model for the simulation of herbicide transport in Haplic Luvisol is documented. Second the most suitablemodel for description of observed herbicide behavior in Greyic Phaeozem, which was influenced by preferential flow, is studied. Results of single-porosity, dual-porosity models are compared with the measured values. Concentrations simulat

Czech name

Aplikace modelů jednoduché a duální pórovitosti a modelu duální propustnosti pro popis transport herbicidu v půdě

Czech description

Non-equilibrium water flow and contaminant transport in soil porous media are frequently observed phenomena. Numerical models that assume bi-modal soil porous systems have been developed to describe non-equilibrium flow and solute transport. Single-porosity, dual-porosity and dual-permeability models in HYDRUS-1D (Šimůnek et al., 2003,2005) were applied in this study to estimate soil hydraulic parameters from laboratory multi-step outflow experiment via numerical inversion and to simulate chlorotolurontransport in the soil profile that was experimentally studied in the field. Two examples are shown here. First the applicability of single-porosity model for the simulation of herbicide transport in Haplic Luvisol is documented. Second the most suitablemodel for description of observed herbicide behavior in Greyic Phaeozem, which was influenced by preferential flow, is studied. Results of single-porosity, dual-porosity models are compared with the measured values. Concentrations simulat

Type

D - Article in proceedings

CEP classification

DF - Pedology

OECD FORD branch

—

Project

<a href="/en/project/GA103%2F05%2F2143" target="_blank" >GA103/05/2143: Characteristics of the porous systems in soil hydraulic functions</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

16.slovensko-česko-pol´ský vedecký seminár - 16th Slovak-Czech-Polish scientific seminar Fyzika vody v pode-Physics of Soil Water

ISBN

80-89139-09-4

ISSN

—

e-ISSN

—

Number of pages

1

Pages from-to

0-0

Publisher name

Ústav hydrológie Slovenskej akadémie vied

Place of publication

Michalovce

Event location

Michalovce, Vinianske jazero

Event date

Jun 6, 2006

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—