Ways to Prevent Soil Erosion

Topics: Soil, Surface runoff, Erosion Pages: 2 (470 words) Published: May 5, 2013
Ways to Prevent Soil Erosion

Soil Erosion

Although many areas on earth can sustain plant growth, only about eight percent of the earth’s surface is covered with good topsoil. While it takes nature hundreds of years to make a few centimeters of topsoil, erosion can easily remove it. Without topsoil, people cannot raise crops for food.People know that without good soil they cannot raise agricultural crops. They also know from experience that wind and water can easily remove topsoil. Because of this they practice ways to prevent or control soil erosion. What are these practices?


One way farmers prevent soil erosion on mountainside and hillside is by terracing. Terracing is the building of wide flat rows of terraces on mountainside and hillsides. The terraces look like big staircases. They hold rainwater so that it will not wash away the soil. The Banawe Rice Terraces here in the Philippines was built by ancient Filipinos thousands of years ago. These terraces have protected mountain soil through the years.

Contour Plowing

Some agricultural lands are on a slope, where soil can be easily carried away by wind and water. To prevent this, farmers follow a technique called contour plowing. Instead of plowing up and down, they plow across the slope. In this way, the soil forms a ridge across the slope. The ridges slow down the flow of water, so soil is not carried away.

Strip Cropping

Another method of preventing soil erosion is through strip cropping. In this method, grass and other plants that grow close to the ground are planted in strips between bands of grain crops. The strip crops help hold water and prevent the soil from being carried away.

Using trees and natural vegetation

Some farmers control soil erosion by planting trees on the edge of fields. These trees serve as windbreaks. When strong winds blows, plants that grow near the fields are not disturbed. These plants also help hold the soil so it will not be eroded.

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