United Arab Republic: pre-investment survey of the northwestern coastal region, vol 1, text, part 4, the El Qasr pilot area

abastecimiento de agua actividades cooperativas agricultura agricultural development agricultural economics agriculture agua superficial animal production approvisionnement en eau clima climat climate colonisation rurale cooperative activities crops drainage drenaje eau de ruissellement eau souterraine eau superficielle economic analysis farm income fertilidad del suelo genetic soil types groundwater livestock perfil del suelo production production costs profil du sol recursos del suelo ressource en eau ressource en sol runoff water rural settlement soil chemicophysical properties soil fertility soil profiles soil resources soil texture surface water tenencia tenure textura del suelo texture du sol water resources water rights water supply