Determination of hydraulic properties of a tropical soil of hawaii using column experiments and inverse modeling

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F11%3A00184046" target="_blank" >RIV/68407700:21110/11:00184046 - isvavai.cz</a>

Result on the web

<a href="http://www.scielo.br/scielo.php?pid=S0100-06832011000400016&script=sci_arttext" target="_blank" >http://www.scielo.br/scielo.php?pid=S0100-06832011000400016&script=sci_arttext</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of hydraulic properties of a tropical soil of hawaii using column experiments and inverse modeling

Original language description

A method for determining soil hydraulic properties of a weathered tropical soil (Oxisol) using a medium-sized column with undisturbed soil is presented. The method was used to determine fitting parameters of the water retention curve and hydraulic conductivity functions of a soil column in support of a pesticide leaching study. Column was examined by computed tomography. The experiment was based on tension infiltration into the soil column with free outflow at the lower end. Water flow through the soilcore was mathematically modeled using a computer code that solves the one-dimensional Richards equation. The inverse modeling produced very good agreement between model outputs and measured flux and pressure head data for the relatively homogeneous column. The moisture content at a given pressure from the retention curve measured directly in small soil samples was lower than that obtained through parameter optimization based on experiments using a medium-sized undisturbed soil column.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DA - Hydrology and limnology

OECD FORD branch

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Project

<a href="/en/project/GA103%2F08%2F1552" target="_blank" >GA103/08/1552: Water flow and solute transport in porous media with the presence of discontinuous gas phase</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2011

Confidentiality

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

Name of the periodical

Revista Brasileira de Ci?ncia do Solo

ISSN

0100-0683

e-ISSN

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Volume of the periodical

35

Issue of the periodical within the volume

4

Country of publishing house

BR - BRAZIL

Number of pages

11

Pages from-to

1229-1239

UT code for WoS article

000295854500016

EID of the result in the Scopus database

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