Gce Model Questions Vol1 2017 Geography Question 9

Practice essay / theory question 9 from the 2017 Gce Model Questions Vol1 Geography examination. This question covers Soils .

Gce Model Questions Vol1 2017 Geography Essay / Theory
Topic: Soils
Question 9 GCE_MODEL_QUESTIONS_VOL1 • 2017 • GEOGRAPHY • essay

A farmer in the northern part of Nigeria is planning to expand his farm and wants to understand the soil characteristics of the area. The following soil profile was obtained from a field investigation: Depth (cm) | Colour | Texture | Structure | pH | Organic Matter (%) | Observed Limitation --- | --- | --- | --- | --- | --- | --- 0‑20 | Dark brown | Loam | Granular | 6.2 | 2.5 | Low nitrogen 20‑50 | Light brown | Sandy loam | Blocky | 5.8 | 1.2 | Low water‑holding capacity 50‑80 | Reddish‑brown | Sandy | Platy | 5.3 | 0.8 | Susceptible to erosion 80‑120 | Light brown | Sandy | Massive | 5.0 | 0.5 | Low fertility

Question Parts

( a )
Describe the main pedogenic processes that have produced each horizon in the profile, linking the observed properties to the dominant process.
( b )
Classify the soil to the most appropriate FAO soil group and justify your classification using the data provided.
( c )
Recommend three soil management practices that would improve the productivity of the soil for maize cultivation, explaining the principle behind each practice.
( d )
Discuss the likely consequences of continued soil erosion on the long‑term sustainability of agriculture in this region.

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About This Question

This is Gce Model Questions Vol1 2017 Geography Question 9. It is one of the essay questions from the 2017 Gce Model Questions Vol1 Geography examination.

The question covers Soils .

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