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| Your task:
You must word-process a report (1500 words) or
produce a presentation incorporating images, maps and graphs,
where possible, to address the following questions:
- What may have caused the current level of
global desertification and to what extent is desertification a
natural phenomenon?
- What are the consequences of desertification?
- Would you suggest that desertification is
only a local issue?
- How has Africa tried to combat
Desertification?
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Work through this web enquiry first:
- What IS desertification?
A glossary is available at the following web site: www.unccd.int/knowledge/menu.php
- Identify the desert areas of the world using
an atlas and transfer this information to a political map of the
world, making note of the countries most affected.
- Complete the following table and plot the
data (either Affected Area or Population OR both). This could be
completed using graphical packages or mapped as proportional circles
/ squares.
|
Region |
Affected Area
1000sq km |
% Total |
Affected Population Millions |
% Total |
|
Africa |
7409 |
|
108 |
|
|
Asia |
7480 |
|
123 |
|
|
Australia |
1123 |
|
0.23 |
|
|
Med. Europe |
296 |
|
16.5 |
|
|
N. America |
2080 |
|
4.5 |
|
|
S. & C. America |
1620 |
|
29 |
|
| |
20008 |
100 |
281.23 |
100 |
From Geo Factsheet September 1997 Number 28
-
Build an animation of the
vegetational changes that have taken place over a 10 year period
from 1984-1994 a or changes in the biosphere from the following web site from January
1999 to June 2000.t the following site:
http://earthobservatory.nasa.gov/Observatory/Datasets/bios.seawifs.html
-
Describe the patterns that you see
and state how the Sahara has changed in area over this time. (Tip:
You can drag the slide backwards and forward to get a better
indication of change). From the images to what extent can it be said
that the desert expands?
-
Concentrating on Africa identify the
countries that may be threatened by increased desertification
resulting from expansion of the Sahara towards the south. This region
is called the Sahel.
-
Locate a city on the margins of the
desert, e.g. Tombouctou, and obtain climatic information for it by
using the following web site: www.worldclimate.com
-
Plot the rainfall and temperature
data obtained above using a spreadsheet program and discuss any
issues that might arise from such a climate. How might slight changes
in global climate affect the region?
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View the following images:
http://drylands.nasm.edu:1995/sahel2.html What do these satellite
images suggest to you? From what you saw on the animations above, how
might these be misleading?
-
Study the following photograph:
What problems might arise for those
living in an area like this?
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Using a Search engine such as www.google.com
locate and obtain further information from relevant websites.
http://www.unccd.int/publicinfo/factsheets/menu.php
http://www.unccd.int/publicinfo/factsheets/showFS.php?number=11
http://www.gci.ch/GreenCrossPrograms/waterres/desertification/Desert.html
Your task
Now word-process a report (1500
words) or produce a presentation incorporating images, maps and graphs,
where possible, to address the following questions:
-
What may have caused the current level
of global desertification and to what extent is desertification a
natural phenomenon?
-
What are the consequences of
desertification?
-
Would you suggest that desertification
is only a local issue?
-
How has Africa tried to combat
Desertification?
Desertification
in Developing Countries
The purpose is to:
To develop a full understanding of the physical and human causes
of desertification, the impacts that desertification has upon social and
ecosystems and the means that are being employed to tackle the problem
Stuart Hitch, City of Stoke on Trent VI Form College

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