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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F08%2F1552" target="_blank" >GA103/08/1552: Proudění vody a transport rozpuštěných látek v pórovitém prostředí za přítomnosti nespojité plynné fáze</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Revista Brasileira de Ci?ncia do Solo

ISSN

0100-0683

e-ISSN

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Svazek periodika

35

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

BR - Brazilská federativní republika

Počet stran výsledku

11

Strana od-do

1229-1239

Kód UT WoS článku

000295854500016

EID výsledku v databázi Scopus

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