Espagne (1) Development (1) Preservation (1) Conservation (1) Childhood and youth (1) Capital and capitol (1) Moisture (1) Trees (1) Strategy (1) Runoff (1) Reforestation (1) Porosity (1) Plants (1) Pine (1) Impact (1) Earthwork (1) Conversion (1) Conifers (1) Comprehension (1) Afforestation (1) Use studies (1) Use studies (1) Management (1) Planting (1) Influence (1) Stability (1) Soils (1) Rates (1) Permeability (1) Erosion (1)