measures to control soil erosion
Answers
1
Plant grass and shrubs. Bare soil is easily swept away by wind and water, the two main causes of erosion. Plant roots hold the soil together, while their leaves block rain and stop it breaking the soil apart.
2
Add mulch or rocks. This will weigh down the soil and protect the seeds and young plants underneath from getting washed away. It also slows the absorption of water to reduce runoff.
3
Put down fiber logs. Another option for erosion control on steep slopes is a series of rolled up logs or "wattles" made from fibrous material (like straw). Water running down the slope will slow down when it hits the logs, soaking into the soil instead of carrying mud downhill. Put the logs down across the slope, 10 to 25 feet (3–8m) apart. Hold them in place with wooden stakes or sturdy, living plants.
In short-:
1)Plant grass and shrubs. ...
2)Add mulch or rocks. ...
3)Use mulch matting to hold vegetation on slopes. ...
4)Put down fiber logs. ...
5)Build retaining walls. ...
6)Improve drainage. ...
7)Reduce watering if possible. ...
8)Avoid soil compaction.
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Afforestation- Forest reduce erosion as the roots of trees hold the soil in place.
Shelter belts- Trees are planted in hedges around form land reduce erosion by reducing the speed of the wind.
Contour Ploughing- Farmers plough lands so that furrows lie across the natural slope of the land. These furrows trap water and do not allow it to flow down carrying the top soil.
Terrace farming/step farming- A terraced hill side is less lightly to be eroded than a natural hill side. Here, a series of steps form by horizontal strips supported by walls, catch the descending water. It gives the water sufficient time to percolate into the soil and nourish the crop.
Soil cover- Soil left bare after harvesting of crops is often covered with dried vegetation to prevent erosion. Steep slopes that cannot be ploughed are covered with grass or any crops.
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