Pedotransferové funkce jako metoda odhadu retenčních čar půdní vlhkosti

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F07%3A22014" target="_blank" >RIV/60460709:41210/07:22014 - 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

Estimation of the Soil Water Retention Curve (SWRC) Using Pedotransfer Functions (PTFs)

Popis výsledku v původním jazyce

Soil hydraulic characteristics, especially the soil water retention curve and hydraulic conductivity, are essential for many agricultural, environmental, and engineering applictions. Their measuremetn is time-consuming and thus costly. Hence, many researchesrs focused on methods enabling their indirect estmation. In this paper, Wöstens continuous pedtransfer functions were applied to the data from a selected locality in the curves, and the informtion about the soil textue, bulk denstiy d, and organic matter content detrmined at the sme time. Own continuous pedotransfer functions were derived, following the methodology used in continuous pedotranser functions. Two types of fitting, 4-parameters and 3-parameters, were tested. In 4-parameters fitting, allparameters of the van Genuchten equation, were otimized, in 3-parameter fititing, only three parameters, were otpimised while the measured value of was set as constant. Based on the result, it can be concluded that the general equations

Název v anglickém jazyce

Estimation of the Soil Water Retention Curve (SWRC) Using Pedotransfer Functions (PTFs)

Popis výsledku anglicky

Soil hydraulic characteristics, especially the soil water retention curve and hydraulic conductivity, are essential for many agricultural, environmental, and engineering applictions. Their measuremetn is time-consuming and thus costly. Hence, many researchesrs focused on methods enabling their indirect estmation. In this paper, Wöstens continuous pedtransfer functions were applied to the data from a selected locality in the curves, and the informtion about the soil textue, bulk denstiy d, and organic matter content detrmined at the sme time. Own continuous pedotransfer functions were derived, following the methodology used in continuous pedotranser functions. Two types of fitting, 4-parameters and 3-parameters, were tested. In 4-parameters fitting, allparameters of the van Genuchten equation, were otimized, in 3-parameter fititing, only three parameters, were otpimised while the measured value of was set as constant. Based on the result, it can be concluded that the general equations

Druh

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

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

<a href="/cs/project/1G58095" target="_blank" >1G58095: Předpovědní půdně-agrohydrologické modely retence vody v půdě v ČR a jejich integrace do databází zemí EU</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Soil and Water Research

ISSN

1801-5395

e-ISSN

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Svazek periodika

2

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

113-122

Kód UT WoS článku

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EID výsledku v databázi Scopus

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