Soil conservation
Soil conservation is the careful use and management of soil. Soil can be conserved in the following ways:
- By farmers avoiding overgrazing.
This can be done by keeping the right number of animals on a piece of land.
- Farmers should practise contour farming while cultivating on steep slopes.
This is when a farmer ploughs across instead of up and down the slope.
- Below is an image showing how contour farming is done.
- Planting trees on farms. This practise is called agroforestry.
- Cover crops should be planted between tree crops to ensure that the soil is not left exposed. Examples of cover crops are potato vines, beans and different types of vegetables.
- Farmers should be advised to practise terrace farming on steep slopes.
The diagram below shows how terracing is done.
- Gabions are made by binding wire mesh around pieces of rock. They are then placed across gullies to help control soil erosion
- Crop rotation.
- Avoid farming near river banks.
- Afforestation - planting trees where there were no trees.
- Practise mulching - use grass and other forms of vegetation to cover open fields.