Embedded Files
What you should know by the end of this lesson:
What you should know by the end of this lesson:
Have a good overview of this topic
Be able to describe what a Semi-Arid area is
Given a location example of where we find one
What is Land Degradation?
What is Land Degradation?
In arid climates, land degradation can lead to desertification.
Land degradation is important because soil supports life.
Arid
A region with a lack of water
Land Degradation
Loss of healthy Soil
Desertification
Land turning to desert
Digital Workbook and Paper Jotter
Copy the notes for the full description of a Semi-Arid area
Collect a world map and highlight where we find different Semi-Arid locations
What is a Semi-Arid area?
What is a Semi-Arid area?
A semi-arid area is defined by its key features:
Precipitation range of between 250-600mm
The region supports short or scrubby vegetation with grasses and shrubs
Rainfall patterns are erratic and variable
Rains fall infrequently as heavy showers and are lost to runoff (Hydrosphere unit)
A high rate of evapotranspiration (Hydrosphere unit)
A majority of the population of semi-arid lands depend on agriculture and pastoralism for subsistence.
Global Locations of Land degradation in Semi-Arid areas
Global Locations of Land degradation in Semi-Arid areas
Land degradation is an issue observed locally but is observed across the world. It is a regional or national problem, especially in arid areas.
Soil is very slow to form, it can take between 500-1000 years for one inch of topsoil to form.
One Inch Challenge:
Draw a line on a piece of paper to One Inch without using a ruler. Then check to see how close you were!
Well done you have finished lesson 1 of Rural Land Degradation
Well done you have finished lesson 1 of Rural Land Degradation
Return to the topic launch page and attempt the lesson quiz
Return to the topic launch page and attempt the lesson quiz
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