Inverzní modelování dynamiky půdní vody v heterogenní půdě s makropóry

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Inverse Modelling of Soil Water Dynamics in Heterogeneous Soil with Macropores

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Inverse Modelling of Soil Water Dynamics in Heterogeneous Soil with Macropores

Popis výsledku anglicky

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.

Druh

A - Audiovizuální tvorba

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F04%2F0663" target="_blank" >GA103/04/0663: Vliv makropórů v půdách Českomoravské vrchoviny na vyplavování dusičnanů do podzemních vod</a><br>

Návaznosti

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

Rok uplatnění

2005

Kód důvěrnosti údajů

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

ISBN

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Místo vydání

Katlenburg-Lindau

Název nakladatele resp. objednatele

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Verze

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Identifikační číslo nosiče

neuvedeno