Written by students who passed Immediately available after payment Read online or as PDF Wrong document? Swap it for free 4.6 TrustPilot
logo-home
Document preview thumbnail
Preview 2 out of 9 pages
Summary

Summary Water Cycle and Insecurity CASE STUDIES Edexcel A level Geography (Unit 3 - Physical Systems and Sustainability)

Document preview thumbnail
Preview 2 out of 9 pages

A complete document of all the specification listed case studies required for enquiry questions 1, 2 and 3 of 'Water cycle and insecurity', Topic 5 of Unit 3 in A level Geography (Edexcel). Put together by an A* student. Includes the following case studies: The Nile China water transfer Singapore water management Amazon rainforest River regimes of Amazon, Indus, Yukon Tropical, temperate and polar water budgets Sahelian or Australian drought UK flood events 2007/2012 Physical/human causes of water insecurity Aral Sea (over abstraction) UK water transfer Three Gorges Dam

Content preview

WATER CYCLE AND
INSECURITY CASE STUDIES
The Nile River Basin
Location:

 The Nile is the world’s largest river and flows from south to north through Eastern Africa
 It begins in the rivers (White and Blue Nile) that flow into Lake Victoria and empties into the
Mediterranean Sea
 It is over 6,600km long
 The Nile Basin covers about 10% of the African continent

Geography/hydrology

 The Nile is shared by 10 river basin countries
 Measured flow of 84 billion cubic metres
 Seasonal variation in flow due to river being susceptible to major inter annual and decadal
fluctuations brought about by ENSO cycles and in the future, climate change
 High evaporation losses due to hot arid areas, e.g., in Sudan

Geopolitical issues

Large number of national borders traverse the Nile Basin.

Growing demand due to population growth – currently 300 million live within the basin but this is
expected to double by 2030. For example, Egypt is dependent on the Nile for 95% of its water needs.

Economic scarcity in many countries means that they lack the capital and technology to exploit the
supplies. States such as Rwanda and Ethiopia need large supplies of water to develop crop irrigation,
HEP and industry in order to lift their nations and people out of poverty.

Due to demand from growing populations, development, and the impact of climate change, most of
the Nile Basin countries will be potentially water scarce by 2025.

Impact of history

- Original agreements for sharing Nile’s water were bilateral between Egypt and Sudan
(agreed by their colonial masters).
- Nile Waters Agreements signed away effectively all of the water to Egypt and Sudan as
colonial powers signed on behalf of upstream countries, who felt that all the other countries
had plenty of water from other sources.
- This has led to an unfair allocation of the Nile’s waters – e.g., Ethiopia has major production
of water but very low capture of the resources.

Potential for water conflicts

- Sudan and Egypt have ever increasing needs for more Nile Water. This is because they
receive much less rainfall than other basin countries and rely on the river more.

, - However, a riparian led process of joint decision making called the Nile Basin Initiative
emerged during the 1990s. The NBI has worked with agencies such as the World Bank to
establish a common vision. Despite Egypt and Sudan being involved in the NBI, little has
been achieved.
- Egypt and Sudan are no longer as politically strong and are less well supported by powerful
allies. The neo-colonialism of China is building schemes and dams, particularly in Ethiopia.
- There have been threats of military force between the countries, in particular Egypt has
recently struck a series of military agreements with East African states, signalling its
readiness for more robust engagement in the conflict.

Overall, the emphasis so far has been on cooperation, and therefore it seems unlikely that water
wars will take place here. It is likely that the common vision of the NBI, which seeks to achieve
sustainable socioeconomic development through the equitable usage of, and benefit from, the Nile
Basin resources, and peace, will prevail.

China’s water transfer scheme
What is it?

One of the most ambitious and expensive water transfer projects in the
world, which began in 2003. It involves the construction of 3 canals that
run 1300km across the eastern, middle and western part of China to link
the country’s 4 major rivers: the Yangtze, Yellow, Huai and Hai.
Movement of water from south to north. It will move 45 billion cubic
metres of water a year.

Why is it needed?

- Significant demand for more water for economic growth in the more arid north of China (in
particular Beijing and Tianjin)
- Population density is high, so there is considerable demand for domestic water
- Water deficit (physical scarcity) in the north of the country, and the water table below
Beijing is falling at a rate of 5m a year due to over abstraction (intensive agriculture, demand
from industrial centres)

What are the positive impacts?

 Reduction of water insecurity in the north which supports economic development and
improvements in food security and health benefits
 Water conservation
 Improved irrigation
 Pollution treatment

What are the negative impacts?

 Resettlement issues as hundreds of thousands displaced due to the construction of dams
and reservoirs (435,000 people displaced)
 Ecological damage to the natural environment
 Considerable evaporation from canals and reservoirs
 Yangtze River is already severely polluted, Yellow River water is undrinkable
 Industrial growth along routeways may exacerbate existing pollution problems

Connected book
 image
Publisher: 2017 ISBN: 9781471856532 Edition: 1

Document information

Study Level
Subject
Summarized whole book?
No
Which chapters are summarized?
Chapter 1 to 3
Uploaded on
February 2, 2023
File latest updated on
February 9, 2023
Number of pages
9
Written in
2022/2023
Type
Summary
$8.91

Wrong document? Swap it for free Within 14 days of purchase and before downloading, you can choose a different document. You can simply spend the amount again.
Written by students who passed
Immediately available after payment
Read online or as PDF

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
emmacraig04
3.8
(15)
Sold
113
Followers
26
Items
0
Last sold
5 months ago

Reviews from verified buyers




Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Working on your references?

Create accurate citations in APA, MLA and Harvard with our free citation generator.

Working on your references?

Frequently asked questions