Geography

Soil conservation


Soil, when not properly treated, can lose its natural properties and become infertile. For soil conservation, some measures can be adopted:

  • Conservation of native vegetation: One of the most important measures to conserve the soil is not to practice deforestation. The natural vegetation has characteristics that conserve the soil.


Conservation of native vegetation

  • Erosion control: made through the contour system. Circular ditches are made in the soil of high regions (mountains, hills, mountains). These ditches absorb the water, thus avoiding the floods that carry the lands.


Erosion control

  • Reforestation: Lack of vegetation can cause erosion to occur. By planting trees in regions that have experienced deforestation, erosion is avoided. Eucalyptus and pine are the most commonly used trees in this process because their roots "hold" the earth and absorb some of the water.


Before and after Reforestation

  • Crop rotation: The plantation area can be divided into parts, so that one of them will always be at rest. The other parties receive the planting of various crops. After harvesting, a rotation occurs, and the part that has been resting receives the planting, and one that was used goes to rest. In this way, the wear of the earth (nutrient loss) is avoided, making its infertility difficult.


Crop rotation