Question

Discuss five causes of land degradation. Also write their concerned solutions.

Answer 1

Land degradation can be caused by the following.

a) Dumping of garbage.

b) Deforestation

c) Overgrazing

d) Soil erosion

e) Excessive use of chemical fertilizers and pesticides

Hope this helps you buddy.........

Answer 2

1. Deforestation: Forests help in binding up of soil particles with the help of roots of vegetation. Therefore, cutting оf forests will affect the soil adversely.

2. Excessive Use of Fertilizers and Pesticides:

Excessive use of fertilizers is causing an imbalance in the quantity of certain nutrients in the soil. This imbalance adversely affects the vegetation.

3. Overgrazing: Increase in livestock population results in over exploitation of pastures. Due to this, grass and other types of vegetation are unable to survive and grow in the area, and lack of vegetation cover leads to soil erosion.

4. Desertification: Desertification is a widespread process of land degradation in arid, semi- arid, and dry sub-humid areas resulting from various factors, including climatic variations and human activities.

5. Poor Drainage of Soil: Salts dissolved In Irrigation water accumulate on the soil surface due to inadequate drainage, especially during flood.

Solutions:

1. Strip farming:   It is & practice in which cultivated crops are sown in alternative strips to prevent water movement.

2. Crop Rotation:  It is one of the agricultural practice in which different crops are grown in same area following a rotation system which helps in replenishment of the soil.

3.Construction of Dams: This usually checks or reduces the velocity of run off so that soil support vegetation.