Desertification is the process by which fertile land becomes desert due to which factors?

Study for the China and Xinjiang Ethnic and Political Overview Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Desertification is the process by which fertile land becomes desert due to which factors?

Explanation:
Desertification happens when dryland ecosystems lose their capacity to support plants and livelihoods, due to moisture stress from drought and land-management practices that degrade soil and vegetation. The combination of drought, deforestation, and inappropriate agriculture directly undermines soil moisture, structure, and cover. Drought reduces water in the soil, making it harder for plants to hold the ground together. Deforestation removes protective tree cover and litter, increasing erosion and drying out the soil. Inappropriate agriculture—overcultivation, overgrazing, and poor irrigation practices—destroys soil structure, reduces organic matter, and can lead to salinization or crust formation, further stripping land of productivity. Together, these factors turn fertile land into desert-like conditions. Urban expansion can affect land use, but it isn’t the primary mechanism driving desertification. High rainfall would counter desertification rather than cause it, and natural desertification without human influence doesn’t reflect the common, human-impacted reality in many regions.

Desertification happens when dryland ecosystems lose their capacity to support plants and livelihoods, due to moisture stress from drought and land-management practices that degrade soil and vegetation. The combination of drought, deforestation, and inappropriate agriculture directly undermines soil moisture, structure, and cover. Drought reduces water in the soil, making it harder for plants to hold the ground together. Deforestation removes protective tree cover and litter, increasing erosion and drying out the soil. Inappropriate agriculture—overcultivation, overgrazing, and poor irrigation practices—destroys soil structure, reduces organic matter, and can lead to salinization or crust formation, further stripping land of productivity. Together, these factors turn fertile land into desert-like conditions.

Urban expansion can affect land use, but it isn’t the primary mechanism driving desertification. High rainfall would counter desertification rather than cause it, and natural desertification without human influence doesn’t reflect the common, human-impacted reality in many regions.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy