Département du Nord (1) Dynamics (1) Density (1) Preservation (1) Conservation (1) Pickling (1) Horizon (1) Wealth (1) Water (1) Trapping (1) Soil-binding plants (1) Slopes (Physical geography) (1) Shrublands (1) Seepage (1) Reforestation (1) Rain and rainfall (1) Plantations (1) Peasants (1) North (The word) (1) Mountains (1) Land use (1) Informers (1) Income (1) Impact (1) Grain (1) Fruit-culture (1) Forests and forestry (1) Flatware (1) Explanation (1) Employment (Economic theory) (1)