What sustainable management practices mitigate desertification?

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Multiple Choice

What sustainable management practices mitigate desertification?

Mitigating desertification hinges on keeping soil healthy, protecting vegetation, and making better use of scarce water. Soil conservation practices reduce erosion and keep soil structure intact, which preserves fertility and moisture. Techniques like terracing or contour farming slow runoff, mulching or cover crops protect the soil surface, and windbreaks lessen wind erosion. These keep the soil where it belongs and maintain its capacity to support plants. Planting trees or restoring vegetation—afforestation and reforestation—stabilizes the land with roots, adds organic matter, and improves the local microclimate, which together reduce erosion and improve water infiltration. Water harvesting collects and stores rainwater for use during dry periods, boosting soil moisture and supporting vegetation. When combined, these approaches tackle the main drivers of desertification: soil loss, vegetation decline, and water scarcity. Irrigating with saltwater would raise soil salinity, harming plants and soil structure, which accelerates land degradation. Clear-cutting forests and overgrazing remove protective cover, making soils more vulnerable to erosion. Industrial mining disturbs land and water resources, often degrading soils and increasing desert-like conditions.

Mitigating desertification hinges on keeping soil healthy, protecting vegetation, and making better use of scarce water. Soil conservation practices reduce erosion and keep soil structure intact, which preserves fertility and moisture. Techniques like terracing or contour farming slow runoff, mulching or cover crops protect the soil surface, and windbreaks lessen wind erosion. These keep the soil where it belongs and maintain its capacity to support plants.

Planting trees or restoring vegetation—afforestation and reforestation—stabilizes the land with roots, adds organic matter, and improves the local microclimate, which together reduce erosion and improve water infiltration. Water harvesting collects and stores rainwater for use during dry periods, boosting soil moisture and supporting vegetation. When combined, these approaches tackle the main drivers of desertification: soil loss, vegetation decline, and water scarcity.

Irrigating with saltwater would raise soil salinity, harming plants and soil structure, which accelerates land degradation. Clear-cutting forests and overgrazing remove protective cover, making soils more vulnerable to erosion. Industrial mining disturbs land and water resources, often degrading soils and increasing desert-like conditions.

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