Question

what are the causes of land degration​

Answer 1

Answer:

9 Main Causes of Land Degradation

• Deforestation: Forests play an important role in maintaining fertility of     soil by shedding their leaves which contain many nutrients. ...

• Excessive Use of Fertilizers and Pesticides: ...

• Overgrazing: ...

• Salination: ...

• Water-logging: ...

• Desertification

• Soil erosion

• Wasteland

Answer 2

These social and environmental processes are stressing the world's arable lands and pastures essential for the provision of food and water and quality air. Land degradation and desertification can affect human health through complex pathways. As land is degraded and in some places deserts expand, food production is reduced, water sources dry up and populations are pressured to move to more hospitable areas. The potential impacts of desertification on health include:

* higher threats of malnutrition from reduced food and water supplies;

* more water- and food-borne diseases that result from poor hygiene and a lack of clean water;

* respiratory diseases caused by atmospheric dust from wind erosion and other air pollutants;

* the spread of infectious diseases as populations migrate.