Desertification is most strongly associated with which combination of land-use practices?

Desertification is most strongly associated with which combination of land-use practices?

• A. Intensive agriculture, poor irrigation practices, and overgrazing
• B. Deforestation and urbanization
• C. Industrial pollution and mining
• D. Overfishing and reef destruction

Answer: (A)

Desertification happens when land is degraded so much that it loses its ability to support plants and crops. The strongest link is seen when soil is worn down by how the land is used and not properly managed for moisture and nutrients. Intensive farming uses soil heavily to grow lots of crops, which can strip nutrients and compact the soil, making it harder for water to infiltrate and for roots to grow. Poor irrigation can worsen things by causing salt buildup and waterlogging, which kills plants and further disrupts soil structure. Overgrazing removes protective vegetation, leaving soil exposed to wind and rain that erodes it away. Put together, these practices erode the soil, deplete its fertility, and reduce its capacity to hold moisture, nudging landscapes toward desert-like conditions. Other patterns, like removing forests or building urban areas, can contribute to land degradation in different ways, or pollution and mining affect soil quality, while overfishing and reef destruction affect marine environments. Desertification, however, is most directly tied to the combination of intensive farming, poor irrigation, and overgrazing.

Desertification happens when land is degraded so much that it loses its ability to support plants and crops. The strongest link is seen when soil is worn down by how the land is used and not properly managed for moisture and nutrients.

Intensive farming uses soil heavily to grow lots of crops, which can strip nutrients and compact the soil, making it harder for water to infiltrate and for roots to grow. Poor irrigation can worsen things by causing salt buildup and waterlogging, which kills plants and further disrupts soil structure. Overgrazing removes protective vegetation, leaving soil exposed to wind and rain that erodes it away. Put together, these practices erode the soil, deplete its fertility, and reduce its capacity to hold moisture, nudging landscapes toward desert-like conditions.

Other patterns, like removing forests or building urban areas, can contribute to land degradation in different ways, or pollution and mining affect soil quality, while overfishing and reef destruction affect marine environments. Desertification, however, is most directly tied to the combination of intensive farming, poor irrigation, and overgrazing.