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Difficulty: EasyVegetation Zones and Distribution in Nigeria

Which vegetation zone occupies the largest geographical extent in Nigeria and is characterized by tall grasses interspersed with scattered, fire-resistant broad-leaved trees such as the shea butter tree and locust bean?

  1. Guinea SavannaAnswer
  2. B
    Sahel Savanna
  3. C
    Tropical Rainforest
  4. D
    Mangrove Swamp

Answer

Guinea Savanna is the largest vegetation belt in Nigeria, characterized by tall grasses and fire-resistant trees.
The Guinea Savanna is Nigeria's most extensive vegetation zone, spanning the central states (Middle Belt). It is dominated by tall grasses (1.5 m−3 m1.5\text{ m} - 3\text{ m}) interspaced with deciduous, fire-resistant trees such as *Vitellaria paradoxa* (shea butter) and *Parkia biglobosa* (locust bean).

Step-by-Step Solution

1
Identify spatial coverage and physical traits described in the stem.
The stem describes the largest vegetation belt in Nigeria with tall grasses and fire-resistant tree species like shea butter and locust bean.
Matching spatial extent and indicator species narrows down the specific vegetation belt.
2
Compare features across Nigerian vegetation belts.
The Guinea Savanna (consisting of Southern and Northern sub-zones) occupies nearly 50% of Nigeria's landmass across the Middle Belt region.
Guinea Savanna receives moderate annual rainfall (1000 mm−1500 mm1000\text{ mm} - 1500\text{ mm}), creating ideal ecological conditions for tall grasses and thick-barked, fire-adapted trees.

Key Concept

Guinea Savanna characteristics and spatial distribution in Nigeria
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Topics

Vegetation Zones and Distribution in Nigeria

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