Interpretation of ponded infiltration data using numerical experiments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00240931" target="_blank" >RIV/68407700:21110/16:00240931 - isvavai.cz</a>

Alternative codes found

RIV/67985874:_____/16:00457210

Result on the web

<a href="http://147.213.100.3:81/vc_articles/2016_64_3_Dohnal_289.pdf" target="_blank" >http://147.213.100.3:81/vc_articles/2016_64_3_Dohnal_289.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/johh-2016-0020" target="_blank" >10.1515/johh-2016-0020</a>

Result language

angličtina

Original language name

Interpretation of ponded infiltration data using numerical experiments

Original language description

Ponded infiltration experiment is a simple test used for in-situ determination of soil hydraulic properties, particularly saturated hydraulic conductivity and sorptivity. It is known that infiltration process in natural soils is strongly affected by the presence of macropores, soil layering, initial and experimental conditions etc. As a result, infiltration record encompasses a complex of mutually compensating effects that are difficult to separate from each other. Determination of sorptivity and saturated hydraulic conductivity from such infiltration data is complicated. In the present study, we use numerical simulation to examine the impact of selected experimental conditions and soil profile properties on the ponded infiltration experiment results, specifically in terms of the hydraulic conductivity and sorptivity evaluation. The effect of following factors was considered: depth of ponding, ring insertion depth, initial soil water content, presence of preferential pathways, hydraulic conductivity anisotropy, soil layering, surface layer retention capacity and hydraulic conductivity, and presence of soil pipes or stones under the infiltration ring. Results were compared with a large database of infiltration curves measured at the experimental site Liz (Bohemian Forest, Czech Republic). Reasonably good agreement between simulated and observed infiltration curves was achieved by combining several of factors tested. Moreover, the ring insertion effect was recognized as one of the major causes of uncertainty in the determination of soil hydraulic parameters.

Czech name

—

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/GA14-03691S" target="_blank" >GA14-03691S: Isothermal and non-isothermal water flow and solute transport in near-saturated porous media</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

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

Name of the periodical

Journal of Hydrology and Hydromechanics

ISSN

0042-790X

e-ISSN

—

Volume of the periodical

64

Issue of the periodical within the volume

3

Country of publishing house

SK - SLOVAKIA

Number of pages

11

Pages from-to

289-299

UT code for WoS article

000379646300010

EID of the result in the Scopus database

2-s2.0-84979240740