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Question

Difficulty: EasyEnvironmental Hazards and Resource Management in Nigeria

Which environmental resource management strategy is primarily used in northern Nigerian states such as Sokoto and Jigawa to control wind erosion and arrest desertification?

  1. Establishing afforestation shelterbelts and tree windbreaks along arid bordersAnswer
  2. B
    Cultivating cocoa and oil palm plantations to build a dense protective forest canopy
  3. C
    Deploying NOSDRA officials to enforce soil conservation standards on agricultural lands
  4. D
    Building check dams and gabions across ephemeral stream channels to stop gully expansion

Answer

Establishing afforestation shelterbelts and tree windbreaks along arid borders
Establishing shelterbelts and planting tree windbreaks along the arid northern borders reduces wind velocity, traps loose sand, and prevents topsoil loss, making it the most effective ecological measure against desertification in northern Nigeria.

Step-by-Step Solution

1
Identify the environmental hazard and affected region
The hazard described is desertification and wind erosion in semi-arid northern Nigeria.
Northern border states like Sokoto and Jigawa experience dry winds and expanding desert conditions.
2
Evaluate effective ecological control measures for wind erosion
Planting rows of drought-resistant trees (shelterbelts) physically breaks wind speed and stabilizes loose topsoil.
Afforestation shelterbelts are ecologically suited to low-rainfall savanna belts.

Key Concept

Afforestation and Shelterbelts for Desertification Control
Estimated Time:45s
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Topics

Environmental Hazards and Resource Management in Nigeria

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