Inverse Modelling of Soil Water Dynamics in Heterogeneous Soil with Macropores

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F05%3A01116866" target="_blank" >RIV/68407700:21110/05:01116866 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Inverse Modelling of Soil Water Dynamics in Heterogeneous Soil with Macropores

Original language description

Agricultural lands in foothill zones on acid crystalline rocks can be an important source of diffused nitrate pollution affecting the quality of both subsurface and surface waters. Field experiment established to optimise the drip irrigation of potatoeswas set up in the highland region. The soil is a deep loamy Planosol. It has capacity to swell and shrink and contains macropores. An attempt is made to explain the major part of the measured spatial variability of soil water pressure by means of dual permeability modelling. S1D DUAL model was used to simulate seasonal soil water suction variations. Inverse modelling was applied in order to minimize the discrepancies between the model responses and observed pressure heads. Levenberg-Marquardt algorithm,was used as a parameter estimator. It is concluded that the measurements of soil water pressure provide valuable information about the physical nature of water flow, and can help us to quantify parameters of dual permeability models.

Czech name

Inverzní modelování dynamiky půdní vody v heterogenní půdě s makropóry

Czech description

Inverzní modelování dynamiky půdní vody v heterogenní půdě s makropóry

Type

A - Audiovisual production

CEP classification

DA - Hydrology and limnology

OECD FORD branch

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Project

<a href="/en/project/GA103%2F04%2F0663" target="_blank" >GA103/04/0663: The influence of macropores in soils of the Bohemo-Moravian Highland on the leaching of nitrate into groundwater</a><br>

Continuities

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

Publication year

2005

Confidentiality

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

ISBN

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Place of publication

Katlenburg-Lindau

Publisher/client name

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Version

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Carrier ID

neuvedeno