Perkolační teorie a její využití pro interpretaci retenční čáry půdní vlhkosti

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F04%3A6616" target="_blank" >RIV/60460709:41210/04:6616 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Percolation Theory and its Applicaton for Interpretation of Soil Water Retention Curves

Popis výsledku v původním jazyce

The soil porous system has traditionally been deduced from the soil-water retention curve with the assumption of homogeneity and free accessibility of pores, defined as capillary tubes,from the sink /source of water. But real soil fabric is modeled as ahomogeneous one. To examine the differences between homogeneous and heterogeneous soil porous systems, we studied two types of soils: sandy soil and coarse sandy soil. We applied image processing filters and the ARC/info gRID module to analyze pore sizesin both soils from their electron microscope images taken at two diffeent magnifications. We used the resulting pore-size distribution data to generate 3-D porous media consisting of pores and throats. The homogeneous pore structure was created as a mono-modal por-throat network with one pore-size distribution. The heterogeneous por structure was designed as a bi-modal pore-throat network with two por-size distributions, where the pore sizes were hierarchically arranged in the modes of

Název v anglickém jazyce

Percolation Theory and its Applicaton for Interpretation of Soil Water Retention Curves

Popis výsledku anglicky

The soil porous system has traditionally been deduced from the soil-water retention curve with the assumption of homogeneity and free accessibility of pores, defined as capillary tubes,from the sink /source of water. But real soil fabric is modeled as ahomogeneous one. To examine the differences between homogeneous and heterogeneous soil porous systems, we studied two types of soils: sandy soil and coarse sandy soil. We applied image processing filters and the ARC/info gRID module to analyze pore sizesin both soils from their electron microscope images taken at two diffeent magnifications. We used the resulting pore-size distribution data to generate 3-D porous media consisting of pores and throats. The homogeneous pore structure was created as a mono-modal por-throat network with one pore-size distribution. The heterogeneous por structure was designed as a bi-modal pore-throat network with two por-size distributions, where the pore sizes were hierarchically arranged in the modes of

Druh

C - Kapitola v odborné knize

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Invited Presentations College on Soil Physics

ISBN

92-95003-26-8

Počet stran výsledku

12

Strana od-do

209-220

Počet stran knihy

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Název nakladatele

The Abdus Salam International Centre for Theoretical Physics

Místo vydání

Trieste

Kód UT WoS kapitoly

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