Question

write any two reasons for land degradation today? ​

Answer 1

Explanation:

Reasons for land degradation are :—

1. Deforestation — Forests play an important role in maintaining fertility of soil by shedding their leaves which contain many nutrients. Forests are also helpful in binding up of soil particles with the help of roots of vegetation. Therefore, cutting о 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 overexploitation 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. Water-logging — Excessive irrigation and improper drainage facility in the fields cause rise in the ground water level. This ground water mixes with surface water used for irrigation and creates a situation called water-logging. Ground water brings the salts of soil in dissolved state up to the surface where they form a layer or sheet of salt after evaporation.

Answer 2

Two reasons for land degradation are deforestation and overuse of chemical fertilisers