Using two pedotransfer functions to estimate soil moisture retention curves from one experimental site of South Moravia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F14%3APU107139" target="_blank" >RIV/00216305:26110/14:PU107139 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.11118/actaun201462030501" target="_blank" >http://dx.doi.org/10.11118/actaun201462030501</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11118/actaun201462030501" target="_blank" >10.11118/actaun201462030501</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Using two pedotransfer functions to estimate soil moisture retention curves from one experimental site of South Moravia

Popis výsledku v původním jazyce

The soil moisture retention curves (SMRCs) were measured in laboratory conditions. The sand table and pressure extractor method were used to obtain a 9-point SMRCs for undisturbed soil samples taken from 20 cm depth. The data points of the individual retention curves were parameterized using the RETC computer program. For the same soil, the SMRCs were estimated by two models of pedotransfer functions (PTFs). In the first part of the study the Rosetta program with the model of artificial neural network (Schaap et al. 1998) was used. The PTFs derived by Wosten et al. (1998) were used in the second part of the study. The reliability of selected PTFs models were tested on local soils from one site of the South Moravia. The quality of estimated retention curves was evaluated using the coefficient for correlation R between the measured and the estimated soil water content at several pF values and the root mean squared error RMSE. Of the two models of PTFs, which have been tested in the study, Model of Wosten showed better agreement with the measured retention curves (RMSESch = 0.0383 (cm3.cm-3), RMSEW = 0.0264 (cm3.cm-3)).

Název v anglickém jazyce

Using two pedotransfer functions to estimate soil moisture retention curves from one experimental site of South Moravia

Popis výsledku anglicky

The soil moisture retention curves (SMRCs) were measured in laboratory conditions. The sand table and pressure extractor method were used to obtain a 9-point SMRCs for undisturbed soil samples taken from 20 cm depth. The data points of the individual retention curves were parameterized using the RETC computer program. For the same soil, the SMRCs were estimated by two models of pedotransfer functions (PTFs). In the first part of the study the Rosetta program with the model of artificial neural network (Schaap et al. 1998) was used. The PTFs derived by Wosten et al. (1998) were used in the second part of the study. The reliability of selected PTFs models were tested on local soils from one site of the South Moravia. The quality of estimated retention curves was evaluated using the coefficient for correlation R between the measured and the estimated soil water content at several pF values and the root mean squared error RMSE. Of the two models of PTFs, which have been tested in the study, Model of Wosten showed better agreement with the measured retention curves (RMSESch = 0.0383 (cm3.cm-3), RMSEW = 0.0264 (cm3.cm-3)).

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis

ISSN

1211-8516

e-ISSN

2464-8310

Svazek periodika

62

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

501-506

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-84924219520