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Zorluk: OrtaVegetation Zones and Distribution in Nigeria

When travelling across Nigeria along a direct south-to-north transect from Port Harcourt to Maiduguri, which vegetation belt is encountered immediately north of the Guinea Savanna before reaching the extreme northern Sahel margin?

  1. A
    Sahel Savanna
  2. Sudan SavannaCevap
  3. C
    Tropical Rainforest
  4. D
    Montane Vegetation

Cevap

Sudan Savanna
Nigeria's vegetation distribution follows a distinct south-to-north zonal pattern driven by decreasing annual rainfall. Moving inland from the coast toward Lake Chad, the sequence passes from mangrove swamps and rainforests through the Guinea Savanna into the Sudan Savanna, before finally terminating in the semi-arid Sahel Savanna. Thus, the Sudan Savanna lies immediately north of the Guinea Savanna.

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1
Identify the geographical direction of the transect and the primary climatic control.
The transect moves from south to north, along which total annual rainfall steadily decreases and the dry season lengthens.
Vegetation distribution in Nigeria is primarily governed by the latitudinal gradient of rainfall controlled by the Inter-Tropical Discontinuity (ITD).
2
Trace the sequential latitudinal zonation of vegetation belts in Nigeria from south to north.
The sequence is: Mangrove/Saltwater Swamp Forest → Freshwater Swamp Forest → Tropical Rainforest → Guinea Savanna (Derived and Southern/Northern Guinea) → Sudan Savanna → Sahel Savanna.
Establishing the complete zonal sequence allows accurate identification of neighboring zones.
3
Determine the zone located directly north of the Guinea Savanna.
The Sudan Savanna is the vegetation belt positioned immediately north of the Guinea Savanna belt.
The Sudan Savanna forms a broad transitional savanna belt between the wetter Guinea Savanna to its south and the semi-arid Sahel Savanna to its north.

Anahtar Kavram

Latitudinal zonation of Nigerian vegetation belts driven by rainfall gradient
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Konular

Vegetation Zones and Distribution in Nigeria

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