[Special features of agricultural ecology and economy in the area around Madrid]

agricultural development agricultural policies agricultural sector ambiente urbano ciudades ecologia ecologie ecology environmental protection environnement urbain espagne europa meridional europe du sud exploitation agricole explotaciones agrarias farmland farms land management land use politique agricole protection de l'environnement relaciones campo ciudad relation ville campagne rural areas rural urban relations secteur agricole sector agrario southern europe spain suburban areas terre agricole towns urban areas urban environment urbanisation urbanization utilisation des terres ville zonas periurbanas zonas rurales zonas urbanas zone rurale zone urbaine