drenaġġ tas-saff tal-ħamrija li jinsab taħt il-wiċċ
Norwegian
undergrunnsdrenering
Polish
odpływ podskórny
Portuguese
drenagem do subsolo
Romanian
drenaj subteran
Russian
грунтовой дренаж
Slovak
podzemná drenáž
Slovenian
podzemna odvodnja
Spanish
drenaje de subsuelo
Swedish
täckdikning
Turkish
yer altı drenajı
Ukrainian
ґрунтовий дренаж
subsoil drainage
Definition
The removal of surplus water from within the soil by natural or artificial means, such as by drains placed below the surface to lower the water table below the root zone.