English AGROVOC

NT Drainage systems
NT Mole drainage
NT Open ditch drainage
NT Subsurface drainage
NT Surface drainage
RT Ditch cleaning
RT Habitat improvement
RT Hydraulic engineering
RT Land improvement
RT Reclamation
RT Sewerage
RT Soil management
RT Water management
RT Wetlands
(Lao)
   ການລະບາຍນ້ຳ
(French)
   Drainage
(Spanish)
   Drenaje