TERMIUM Plus®

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VITESSE INFILTRATION [1 record]

Record 1 2003-11-14

English

Subject field(s)
  • Soil Science
DEF

The actual rate at which water is entering the soil at a given time. It may be less than the maximum (the infiltration rate), because of a limited supply of water (rainfall or irrigation).

CONT

... it is the property of the soil to let itself be passed through by water; it is measured on the velocity of infiltration of the gravitational water. The higher this velocity is and the bigger the volume of the empty spaces is; the velocity is high in sandy, gravelly soils and with stable aggregates having many macropores. The infiltration velocity is expressed in mm/hour ...

Key term(s)
  • infiltration rate

French

Domaine(s)
  • Science du sol
DEF

Vitesse à laquelle l'eau pénètre dans le sol en fonction de la profondeur par unité de temps.

CONT

La quantité d'eau infiltrée par unité de surface a la dimension d'une longueur, c'est la hauteur d'eau équivalente qui a pénétré dans le sol; elle est souvent exprimée en millimètres, tandis que la vitesse d'infiltration est exprimée en millimètres par seconde ou par heure. [...] la vitesse d'infiltration résulte de deux effets : - l'effet de succion [...] - l'effet de la pesanteur [...]

Spanish

Campo(s) temático(s)
  • Ciencia del suelo
DEF

Velocidad máxima de penetración del agua en un suelo.

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