Tunisie (2) Plants (2) Hand (2) Manos (2) Méthode (2) Sud (point cardinal) (2) Main (2) Plantes (2) Zone climatique désertique (2) Tunisie (2) Sud (1) Distances, etc (1) Deterioration (1) Seedlings (1) Plant species (1) Ovis (1) Buffelgrass (1) Wells (1) Wealth (1) Water (1) Vegetation dynamics (1) Value (1) Temperature (1) Stress (Physiology) (1) State, The (1) Spring (1) Soil-binding plants (1) Simplicity (1) Rain and rainfall (1) Pressure (1)