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Difficulty: EasySoil Types, Distribution, and Soil Conservation in Nigeria

Along the low-lying floodplains of the Niger and Benue Rivers as well as the coastal plains of Nigeria, periodic river flooding deposits rich sediments of silt and clay. Which soil group predominantly characterizes these riverine environments?

  1. Alluvial soilsAnswer
  2. B
    Regosols
  3. C
    Ferrallitic soils
  4. D
    Ferruginous tropical soils

Answer

Alluvial soils are predominantly found along the floodplains and valleys of major rivers such as the Niger and Benue.
Alluvial soils are formed from rich silt, sand, and organic matter deposited by rivers during seasonal flooding along river basins like the Niger and Benue, making them exceptionally fertile for wet-season and dry-season fadama farming.

Step-by-Step Solution

1
Identify the geographical context and soil formation mechanism described in the stem.
The stem describes soils formed from silt and sediment deposition by periodic river flooding along low-lying floodplains.
River flood deposits are fluviatile sediments characteristic of riverine environments.
2
Match the depositional environment to the corresponding Nigerian soil classification group.
Soils derived from recent riverborne sediment deposits along river courses are classified as alluvial (or hydromorphic) soils.
Alluvial soils form specifically through the accumulation of waterborne river sediments.

Key Concept

Alluvial Soil Distribution in Nigeria
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Topics

Soil Types, Distribution, and Soil Conservation in Nigeria

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