Sand dunes

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Activities

IGCSE Geography: Marine Processes: Sand Dunes from Richard Allaway
  1. List five conditions required for the development of sand dunes.
  2. Describe the structure of a sand dune system.
Watch

Plant succession in a sand dune

  1. What is a quadrat?
  2. What characteristics of the sand dunes could be measured using a quadrat?
  3. Using the series of images of a sand dune succession complete the following table. If you click on the images (on the website) you can see a larger version.
Distance from start of transect (metres)% Bare SandNumber of Different Plant Species Found
0
10
20
30
40
50
60
70
80
90
100
110
0 metres
10 metres
20 metres
30 metres
40 metres
50 metres
60 metres
70 metres
80 metres
90 metres
100 metres
110 metres

Images Sourced from the British Ecological Society's Education website.

  1. Plot a graph that shows how the percentage of bare sand changes with distance from the start of the transect. Describe and explain the pattern that the graph shows.
  2. Plot a graph that shows how the number of different plant species observed changes with distance from the start of the transect. Describe and explain the pattern that the graph shows.
Review

Review

Have a look at the following photos. What do they show? Can you describe how they link to what you have learnt about Sand Dunes? Could you describe what the images show, using the correct geographical terminology, if the images were presented to you in an exam?

North Gare Sand Dunes - Marram Grass Root System
North Gare Dunes - Foredunes
North Gare Sand Dunes - Older Dune Ridge
North Gare Sand Dunes - First Dune Ridge and Blow Out