Marisa noticed that every time it rains, some of the topsoil in her yard erodes away. Which of the following actions would be best for Marisa to take in order to conserve the soil in her yard?

The process can occur naturally through washing of soil layer by water or through wind or through anthropogenic activities by exerting pressure on top soil and making the soil loose.

Its a slow process and remain unnoticed which slowly and lately causes damage to the soil.

Types of Water Erosion:

- Sheet Erosion

- Rill Erosion

- Gully Erosion

- Bank Erosion

What are the effects of Soil Erosion by water?

1. Removable of valuable top soil, Reduction crop emergence and yield are directly affected.

2. Growth of plants hampered due to unavailability of vital nutrients required for their growth.

3. Weakening of structure and texture of soil.

4. Breakdown of aggregates weaken the structure and even change the texture.

5. Textural changes can in turn affect the water-holding capacity of the soil, making it more susceptible to extreme conditions such as drought.

What are the steps taken to prevent Soil Erosion?

1. Maintaining a healthy, perennial plant cover.

2. Mulching.

3. Planting a cover crop – such as winter rye in vegetable gardens. Includes annual grasses, small grains, legumes and other types of vegetation planted to provide a temporary vegetative cover. Cover crops are often tilled under serving also as a “green manure” crop.

4. Placing crushed stone, wood chips, and other similar materials in heavily used areas where vegetation is hard to establish and maintain.

5. Using other erosion controls that include the use of geo-textile materials or other methods such as sodding or hydroseeding that result in the establishment of permanent cover. These methods work well on steep slopes and heavy traffic areas.

Thus Marisa can practice process of plantation over the soil to prevent soil erosion.

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