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Gezira Scheme

Gezira Scheme is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Gezira Scheme rather than just read about it. In short: The Gezira Scheme (Arabic: مشروع الجزيرة) is one of the largest irrigation projects in the world. It is centered on the Sudanese state of Gezira, just southeast of the confluence of the Blue and White Nile rivers at the city of Khartoum.

Gezira Scheme — main illustration
Gezira Scheme — illustration

Key takeaways

  • Gezira Scheme belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Gezira Scheme to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Gezira Scheme from memory before moving on to harder problems.

Reference excerpt

The Gezira Scheme (Arabic: مشروع الجزيرة) is one of the largest irrigation projects in the world. It is centered on the Sudanese state of Gezira, just southeast of the confluence of the Blue and White Nile rivers at the city of Khartoum. The Gezira Scheme was begun by the British while the area was governed as part of Anglo-Egyptian Sudan. Water from the Blue Nile is distributed through canals and ditches to tenant farms lying between the Blue and White Nile. The Gezira (which means "island") is particularly suited to irrigation because the soil slopes away from the Blue Nile and water therefore naturally runs through the irrigation canals by gravity. The soil has a high clay content which keeps down losses from seepage. Reginald Wingate, the British governor-general of Sudan, originally envisaged the farmers growing wheat but this was abandoned as the colonial authorities thought that a better cash crop was needed. When it was discovered that Egyptian-type long staple cotton could be grown, this was welcomed as a better choice as it would also provide a raw material for the British textile industry. Cotton was first grown in the area in 1904. After many experiments with irrigation, 24 square kilometres (9.3 sq mi) was put under cultivation in 1914. After the lowest Nile flood for 200 years, the Sennar Dam was constructed on the Blue Nile to provide a reservoir of water. This dam was completed in 1925 and is about 3 kilometres (1.9 mi) long. The Gezira Scheme was initially financed by the Sudan Plantations Syndicate in London and later the British government guaranteed capital to develop it. The Sudan Gezira Board took over from private enterprise in 1950 and was chaired by Arthur Gaitskell. Farmers cooperated with the Sudanese government and the Gezira Board. This network of canals and ditches was 4,300 kilometres (2,700 mi) long, and with the completion in the early 1960s of the Manaqil Extension on the western side of the Gezira Scheme, by 2008 the irrigated area covered 8,800 square kilometres (3,400 sq mi), about half the country's total land under irrigation. The main crop grown in this region was still cotton.

See also They Planted a Stone, a 1953 documentary film about the creation of the Gezira Scheme 2025 Egyptian–Ethiopian crisis

References

External links

Sudan: Options for the Sustainable Development of the Gezira Scheme (PDF), Government of Sudan and the World Bank, 17 October 2000 Archived 28 November 2006 at the Wayback Machine FAO report on Sudan economy UN book "Lessons learnt" Archived 2009-06-15 at the Wayback Machine

Illustrations

Gezira Scheme: The irrigation canals of the Gezira Scheme as seen from space, 1997
The irrigation canals of the Gezira Scheme as seen from space, 1997

Worked examples

Example 1 — a first encounter with Gezira Scheme

Start with the simplest possible case. Write down what Gezira Scheme claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Gezira Scheme before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Gezira Scheme ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Gezira Scheme

In research
Gezira Scheme appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Gezira Scheme in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Gezira Scheme is common in secondary-school and first-year university syllabi. It links to neighbouring topics Geography of Sudan, Gezira State, Irrigation in Sudan, so understanding it makes those chapters shorter.
In everyday life
Look for Gezira Scheme outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Gezira Scheme in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Gezira Scheme means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Gezira Scheme out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Gezira Scheme in simple terms?

The Gezira Scheme (Arabic: مشروع الجزيرة) is one of the largest irrigation projects in the world. It is centered on the Sudanese state of Gezira, just southeast of the confluence of the Blue and White Nile rivers at the city of Khartoum.

Why does Gezira Scheme matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Gezira Scheme?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Gezira Scheme.

Tags

  • Geography of Sudan
  • Gezira State
  • Irrigation in Sudan
  • Irrigation projects
  • Land management

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