Sri Lanka/Swiss remote sensing project. Activities in 1982 (land use, mapping)

affectation de ressources alimentos arroz asia asie bebidas beverages boisson cartografia cartographie cartography cereales cereals crops cultivos cultivos de grano desarrollo de recursos economic geography economic plants espace urbain foods forest resources geografia geografia economica geographie geography grain crops land use living resources methode methods natural resources plantas plante plante de culture plants produit alimentaire recursos recursos forestales recursos naturales remote sensing resource allocation resource development resources ressource ressource naturelle ressource vivante rice riz sri lanka te tea urban areas utilisation du sol zonas urbanas